Invited conference presentations

1. Steffen R., Steffen H., Huang P., Berg D., Tarasov L., Kjeldsen K. K., Khan S. A.: Assessing compressibility and incompressibility in glacial isostatic adjustment models: A case study for Greenland. - AGU Fall Meeting, San Franciso, USA, 12/10-12/15/2023.

2. Steffen, R., Steffen, H., Weiss, R., Lecavalier, B., Milne, G., Woodroffe, S., Bennike, O.: Earthquakes induced by ice-mass loss: A case example for southern Greenland - 81. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, online in Kiel, Germany, 03/01-03/05/2021.

3. Steffen, H., Steffen, R., Brandes, C., Tarasov, L.: Glacial Isostatic Adjustment in Europe - Observations, Modelling and its Effects south of the Baltic Sea. - 20th Czech-Polish Workshop on "Recent Geodynamics of Central Europe" and the 2nd Symposium of the Committee on Geodesy of the Polish Academy of Sciences, Jakuszyce, Poland, 10/24-10/26/2019.

4. Wu, P., Steffen, H., Wang, H., van der Wal, W., Li, T., Huang, P.: A review of GIA modelling with 3D viscosity variations and composite rheology. - Workshop on GIA, Ice Sheets, and Sea-level Change - Observations, Analysis, and Modelling, Ottawa, Canada, 09/24-09/26/2019.

5. Steffen, R., Steffen, H., Weiss, R., Lecavalier, B., Milne, G., Woodroffe, S., Bennike, O.: A potentially glacially-induced fault in Greenland. - Workshop on GIA, Ice Sheets, and Sea-level Change - Observations, Analysis, and Modelling, Ottawa, Canada, 09/24-09/26/2019.

6. Steffen, H.: Glacial Isostatic Adjustment in Europe - how much do we know and how accurate can we describe this signal? - EUREF 2019 Symposium, Tallinn, Estonia, 05/20-05/22/2019.

7. Olsson, P.-A., Bilker-Koivula, M., Breili, K., Nielsen, J. E., Oja, T., Ophaug, V., Steffen, H., Timmen, L.: The secular, postglacial gravity change in Fennoscandia observations and findings. - 15th EGU General Assembly, Vienna, Austria, 04/08-04/13/2018; Geophysical Research Abstracts 20, EGU2018-7155-1.

8. Lidberg M., Johansson, J., Kierulf, H., Kristiansen, O., Steffen, H., Olsson, P.-A.: The BIFROST project: 21 years of search for the true crustal deformation in Fennoscandia. - 26th IUGG General Assembly, Prague, Czech Republic, 06/22-07/02/2015.

9. Wu, P., van der Wal, W., Steffen, H., Wang, H.S.: Construction of Late Pleistocene Laurentide Ice History on Earth with Composite Rheology. - AGU Fall Meeting, San Francisco, CA, USA, 12/15-12/19/2014; Abstract 5014.

10. Kierulf, H. P., Steffen, H., Simpson, M. J. R., Lidberg, M: A new GNSS velocity field for Fennoscandia and comparison to GIA models. - AGU Fall Meeting, San Francisco, CA, USA, 12/09-12/13/2013; Abstract G42A-03.

11. Steffen, H., Wu, P., Wang, H.: Sensitivity of GIA observations in Fennoscandia to Earth’s radial and lateral structure. - DynaQlim workshop Lithosphere-Cryosphere Interactions, Bochum, Germany, 09/26-09/27/2012.

12. Steffen, H., Wu, P., Wang, H., Jia, L.: Geodetic measurements of current mass movements and their implications for global change. - Geoinformatics 2012 - Global Change, Adaption, and Risk Management, Hongkong, 06/15-06/17/2012.

13. Wu, P., Steffen, H., and Wang, H.S.: Accuracy and sensitivity of GIA data in the study of the role of thermal effect on seismic anomalies in the mantle. - 8th EGU General Assembly, Vienna, Austria, 04/03-04/08/2011; Geophysical Research Abstracts 13.

14. Steffen, H., Wu, P., and Wang, H.S.: Optimal locations for GNSS measurements in North America and northern Europe for constraining glacial isostatic adjustment. - IGS Workshop and Vertical Rates Symposium, Newcastle upon Tyne, United Kingdom, 06/28-07/02/2010.

15. Wu, P., Steffen, H., van der Wal, W., and Wang, H.S.: Vertical Geodetic Measurements and Glacial Isostatic Adjustment in Canada. - GGOS Workshop, Ottawa, ON, Canada, 05/31/2010.

16. Steffen, H., van der Wal, W., Riva, R., Wu, P., Vermeersen, B. and Wang, H.S.: Glacial Isostatic Adjustment and GRACE - Status and Future. - GRACE Science Team Meeting, Austin, TX, USA, 11/05 - 11/06/2009.

17. Steffen, H., Riva, R., van der Wal, W., and Vermeersen, B.: GIA Requirements for Future Gravity Satellite Missions: Implications After More Than 7 Years of GRACE Data. - IAG-GGOS Workshop on Future Gravity Missions, Graz, Austria, 09/31 - 10/02/2009.

18. Steffen, H.: Can we use GRACE to understand GIA? - Understanding Glacial Isostatic Adjustment - A Joint DynaQlim / GGOS Workshop, Espoo, Finland, 06/23 - 06/26/2009.

19. Steffen, H., Müller, J., and Denker H.: Using GRACE for land uplift investigations - significance, problems and validation of results. - GRACE Science Team Meeting, San Francisco, CA, USA, 12/12 - 12/13/2008.

Invited presentations at universities & institutes

1. Steffen, H.: How a quantum gravimeter at Onsala can impact and support research. - Seminar presentation Chalmers University of Technology, Gothenburg, Sweden, 10/29/2024.

2. Steffen, H.: When non-optimal is suddenly optimal – Glacially Triggered Faulting in Europe. - Geokolloquium at the Christian-Albrechts-Universität zu Kiel, Kiel, Germany, 01/30/2024.

3. Steffen, H.: Glacially Triggered Faulting - History, Recent Results and Notes on Its Occurrence in Northern Central Europe. - Geokolloquium TU Bergakademie Freiberg, Germany, 12/08/2021.

4. Steffen, H.: Geodesy and modelling for understanding geodynamic processes in Sweden, Europe and the world. - Online Research Presentation for KTH Stockholm, Sweden, 05/17/2021.

5. Steffen, H.: Tracking and understanding geodynamic processes in Sweden, Europe and the world. - Public Research Presentation at KTH Stockholm, Sweden, 02/11/2020.

6. Steffen, H.: Living with land uplift in northern Europe - Insights from the work at Lantmäteriet, Sweden. - Geophysical seminar at the Christian-Albrechts-Universität zu Kiel, Kiel, Germany, 06/13/2018.

7. Steffen, H.: Glacial isostatic adjustment in northern Europe - the last 300 years and current challenges. - Seminar at the Department of Earth Sciences of the Hong Kong University, Hong Kong, 03/21/2018.

8. Steffen, H.: Models of glacial isostatic adjustment in Fennoscandia - background, quality, comparison, implications. - Kvarken Council Workshop ”High and low coast - how do we explain the similarities and inequalities in our transnational world heritage site? Vaasa, Finland, 11/13-11/14/2013.

9. Steffen, H.: Investigation of hydrological and solid earth processes with GRACE. - Seminar at the Institute of Earth Sciences, University of Iceland, Reykjavik, Iceland, 03/15/2013.

10. Steffen, H.: Investigation of hydrological and solid earth processes with gravity observations. Sondergeokolloquium zur Besetzung der W3-Professur für Geophysik an der Christian-Albrechts-Universität zu Kiel, Kiel, Germany, 01/16-01/17/2013.

11. Steffen, H.: Modelling techniques and results in investigations on glacial isostatic adjustment. Séminaire CRPG-CNRS, Université de Lorraine, Nancy, France, 09/20/2012.

12. Steffen, H.: Geoscientific tools for geodynamic and subsurface models. Lecture at The University of Aberdeen, Aberdeen, United Kingdom, 08/15/2012.

13. Steffen, H.: Observation and modelling of glacial isostatic adjustment effects. Lecture at Chinese Academy of Sciences Wuhan, Wuhan, China, 06/21/2012.

14. Steffen, H.: Geoscientific tools for Canada’s Arctic Basins. Department of Geoscience Colloquium, Calgary, Canada, 02/08/2011.

15. Bratfisch, R., Jentzsch, G., Steffen, H., and Naujoks, M.: Gravimetric investigations in the Tien Shan and in the region of Almaty (Kazakhstan). - CSPG-GAGGS Seminar Series, Calgary, AB, Canada,04/22/2010.

16. Steffen, H.: Comparison of barometric pressure induced noise in horizontal components. - CSPG-GAGGS Seminar Series, Calgary, AB, Canada, 03/25/2010.

17. Steffen, H.: Bestimmung einer konsistenten Viskositätsverteilung im Erdmantel unter Nord und Mitteleuropa. - Geophysical seminar, Göttingen, Germany, 05/08/2007.

18. Steffen, H.: Determination of a consistent viscosity distribution in the Earth’s mantle beneath Northern and Central Europe. - SFB 526 colloquium, Bochum, Germany, 12/11/2006.

Other Conference Presentations/Abstracts

1. Steffen, H., Pisarska-Jamroży, M., Woronko, B., Woźniak, P.P., Rosentau, A., Hang, T., Steffen, R.: The Aseri linear zone of tectonic disturbances in Estonia - a possible glacially induced fault? - Postglacial Fault Symposium 2024, Gävle, Sweden, 09/11/2024-09/13/2024.

2. Brandes, C., Polom, U., Bentzen, A.T., Steffen, R., Steffen, H., Sandersen, P.: Neotectonic activity of the Tonder Graben, derived from a 2D shear-wave seismic survey. - Postglacial Fault Symposium 2024, Gävle, Sweden, 09/11/2024-09/13/2024.

3. Steffen, R., Steffen, H., Huang, P., Wu, P.: Development of a new glacial isostatic adjustment modeling code for a 3D spherical, compressible Earth. - Postglacial Fault Symposium 2024, Gävle, Sweden, 09/11/2024-09/13/2024.

4. Munier, R., Steffen, H. et al.: Update of the International Database of Glacially Induced Faults - A summary of yesterday’s discussion. - Postglacial Fault Symposium 2024, Gävle, Sweden, 09/11/2024-09/13/2024.

5. Rosentau, A., Klemann, V., Steffen, H., Bennike, O.: Late-glacial to Holocene relative shore-level data from the Baltic Sea Basin. - Peribaltic Symposium 2024, Pärnu, Estonia, 08/25-08/30/2024.

6. Pisarska-Jamroży, M., Woronko, B., Woźniak, P.P., Rosentau, A., Hang, T., Steffen, H., Steffen, R.: Deformation patterns in glacigenic sediments as hints for interpretation of ice sheet dynamics – A case study from northeastern Estonia. - Peribaltic Symposium 2024, Pärnu, Estonia, 08/25-08/30/2024.

7. Steffen R., Steffen H., Kenyeres A., Nilsson T., Lidberg M.: EuVeM2022: A European GNSS velocity model. - 20th Geodynamics and Earth Tide Symposium, Strasbourg, France, 08/25-08/30/2024.

8. Steffen, H., Steffen, R., Kierulf, H.P., Nilfouroushan, F.: Insights on glacially induced fault activity from geodynamic modeling and geodetic measurements. - 20th Geodynamics and Earth Tide Symposium, Strasbourg, France, 08/25-08/30/2024.

9. Kern, D., Magri, F., Steffen, H., Nagel, T.: Effects of glacial isostatic adjustment on fault reactivation and its consequences on radionuclide migration in crystalline host rock. - 21st EGU General Assembly, Vienna, Austria, 04/14-04/19/2024.

10. Seidel, E., Steffen, H., Steffen, R., Ahlrichs, N., Hübscher, C.: Does thicker ice cover cause stronger glacially triggered earthquakes? – A case study from the southwestern Baltic Sea. - 21st EGU General Assembly, Vienna, Austria, 04/14-04/19/2024.

11. Steffen, H., Steffen, R.: Impact of glacially induced stresses and strains at Canadian candidate sites for nuclear waste disposal. - 21st EGU General Assembly, Vienna, Austria, 04/14-04/19/2024.

12. Brandes, C., Plenefisch, T., Tanner, D.T., Gestermann, N., Steffen, H.: Deep crustal earthquakes in northern Germany. - TSK20, Freiberg, Germany, 03/17-03/22/2024.

13. Steffen, H.: NKG2022GIA activity status March 2024. - NKG Working Group of Geodynamics and Earth Observation Meeting, Reykjavik, Iceland, 03/14/2024.

14. Steffen, H.: BIFROST2022 and NKG202XLU status March 2024. - NKG Working Group of Geodynamics and Earth Observation Meeting, Reykjavik, Iceland, 03/14/2024.

15. Steffen R., Steffen H., Huang P.: Development of a new GIA modelling code. - NKG Working Group of Geodynamics and Earth Observation Meeting, Reykjavik, Iceland, 03/14/2024.

16. Konfal S., Wilson T., Whitehouse P., Steffen R., Steffen H.: Experiential learning opens pathways to interdisciplinary modeling of ice sheet and sea level change. - AGU Fall Meeting, San Franciso, USA, 12/10-12/15/2023.

17. Brandes C., Polom U., Winsemann J., Sandersen P. B. E., Wu P., Steffen H.: Repeated neotectonic fault activity at the Sorgenfrei-Tornquist Zone, southwestern Baltica craton. - AGU Fall Meeting, San Franciso, USA, 12/10-12/15/2023.

18. Seidel E., Steffen H., Steffen R., Ahlrichs N., Hübscher C.: The southern Baltic Sea – a geoarchive to investigate Quaternary fault reactivation due to glacial isostatic adjustment. - GeoBerlin 2023, Berlin, Germany, 09/03-09/07/2023.

19. Barbosa I. M., Seidel E., Steffen H., Steffen R., Gohl K., Hübscher C.: Quaternary fault reactivation in West Antarctica associated with Glacial Isostatic Adjustment. - GeoBerlin 2023, Berlin, Germany, 09/03-09/07/2023.

20. Brandes C., Polom U., Winsemann J., Sandersen P. B. E., Wu P., Steffen H.: The Børglum fault, Sorgenfrei-Tornquist Zone, northern Denmark: a multi-method approach reveals fault kinematics, timing of fault activity and paleo-earthquake magnitude. - 21st INQUA Congress, Rome, Italy, 07/20-07/14/2023.

21. Rosentau A., Klemann V., Steffen H., Bennike O.: Late-glacial to Holocene relative shore-level data covering the Baltic Sea. - 21st INQUA Congress, Rome, Italy, 07/20-07/14/2023.

22. Steffen R., Steffen H., Huang P., Tarasov L., Kjeldsen K. K., Khan S.: Three-dimensional velocity variations due to ice mass changes in Greenland – insights from a compressible glacial isostatic adjustment model. - 28th IUGG General Assembly, Berlin, Germany, 07/11-07/20/2023.

23. Weigelt M., Jäggi A., Meyer U., Arnold D., Mayer-Gürr T., Öhlinger F., Sośnica K., Ebadi S., Steffen H.: Combining global hlSST and SLR to bridge the gap between GRACE and GRACE-Follow. - 28th IUGG General Assembly, Berlin, Germany, 07/11-07/20/2023.

24. Steffen H., Steffen R.: Can glacial isostatic adjustment modelling confirm potential signs of glacially triggered faulting in Canada? - 28th IUGG General Assembly, Berlin, Germany, 07/11-07/20/2023.

25. Steffen R., Steffen H., Kenyeres A., Nilsson T., Lidberg M.: EuVeM2022: A new European GNSS velocity model. - 28th IUGG General Assembly, Berlin, Germany, 07/11-07/20/2023.

26. Steffen H., Steffen R.: Modeling glacially induced stresses in Canada with a focus on Ignace and South Bruce. - NWMO Geoseminar 2023, King City, Canada, 06/06-06/08/2023.

27. Steffen R., Steffen H., Kenyeres A., Nilsson T., Lidberg M.: EuVeM2022: a new European GNSS velocity model. - EUREF 2023 Symposium, Gothenburg, Sweden, 05/24-05/26/2023.

28. Kern D., Silbermann C. B., Magri F., Steffen R., Steffen H., Nagel T.: Consequences of Fault reactivation on Subsurface Flow in Crystalline Rock. - 20th EGU General Assembly, Vienna, Austria, 04/23-04/28/2023.

29. Steffen R., Steffen H., Kenyeres A., Nilsson T., Lidberg M.: EuVeM2022: a new European GNSS velocity model. - 20th EGU General Assembly, Vienna, Austria, 04/23-04/28/2023.

30. Steffen H., Pisarska-Jamrozy M., Belzyt S., Börner A., Hoffmann G., Kenzler M., Rother H., Steffen R.: Which fault was it? - Late Pleistocene, glacially triggered earthquakes in NE Germany. - 20th EGU General Assembly, Vienna, Austria, 04/23-04/28/2023.

31. Seidel E., Steffen H., Steffen R., Ahlrichs N., Hübscher C.: 200 000 years of glacially induced faulting in the Tornquist Fan area, SW Baltic Sea. - 20th EGU General Assembly, Vienna, Austria, 04/23-04/28/2023.

32. Brandes C., Polom U., Winsemann J., Sandersen P. B. E., Wu P., Steffen H.: The Børglum fault, Sorgenfrei-Tornquist Zone, northern Denmark: a natural laboratory to investigate a hidden active intra-plate fault. - 20th EGU General Assembly, Vienna, Austria, 04/23-04/28/2023.

33. Steffen, H.: NKG2022GIA activity status March 2023. - NKG Working Group of Geodynamics and Earth Observation Meeting, Helsinki, Finland, 03/14-03/15/2023.

34. Steffen, H.: BIFROST2022 and NKG202XLU status March 2023. - NKG Working Group of Geodynamics and Earth Observation Meeting, Helsinki, Finland, 03/14-03/15/2023.

35. Steffen, R., Steffen, H.: GIA modelling with a compressible Earth. - NKG Working Group of Geodynamics and Earth Observation Meeting, Helsinki, Finland, 03/14-03/15/2023.

36. Seidel E., Steffen H., Steffen R., Ahlrichs N., Hübscher C.: Glacially induced faulting in the SW Baltic Sea. - 83. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, Bremen, Germany, 03/06-03/09/2023.

37. Kierulf, H.P., Kohler, J., Boy, J.-P., Geyman, E.C., Mémin, A., Omang , O.C.D., Steffen, H., Steffen, R.: Glacial induced uplift variations in Svalbard – is it a challenge for the reference frame? - Reference Frames for Applications in Geosciences, Thessaloniki, Greece, 10/17-10/20/2022.

38. Steffen, R., Steffen, H., Kenyeres, A., Lidberg, M.: EuVeM2022: A 3D GNSS velocity field for Europe. - Reference Frames for Applications in Geosciences, Thessaloniki, Greece, 10/17-10/20/2022.

39. Pisarska-Jamroży, M., Belzyt, S., Bitinas, A., Börner, A., Bronikowska, M., Damušytė, A., Górska, M., Hang, T., Hoffmann, G., Hüneke, H., Kenzler, M., Krievāns, M., Lamsters, K., Mleczak, M., Nartišs, M., Obst, K., Rosentau, A., Rother, H., Steffen, H., Steffen, R., Świątek, S., van Loon, T., Woronko, B., Woźniak, P.P.: Pleistocene seismites in the southern Peribaltic area - the GREBAL project summary. - International Field Symposium "Quaternary of the Eastern Baltic Region", Latvia & Lithuania, 09/10-09/15/2022.

40. Kierulf, H.P., Kohler, J., Boy, J.-P., Geyman, E.C., Mémin, A., Omang , O.C.D., Steffen, H., Steffen, R.: Glacial induced uplift variations in Svalbard – is it a challenge for the reference frame? - NKG General Assembly "Planet Ocean and Geodesy", Copenhagen, Denmark, 09/05-09/08/2022.

41. Steffen, R., Steffen, H., Kenyeres, A., Lidberg, M.: EuVeM2022: A 3D GNSS velocity field for Europe. - NKG General Assembly "Planet Ocean and Geodesy", Copenhagen, Denmark, 09/05-09/08/2022.

42. Steffen, H., Steffen, R., Huang, P., Barletta, V.R., Nordman, M., Simpson, M.J.R., Tarasov, L., Zusevic, V.: NKG2022GIA – towards an official NKG model of glacial isostatic adjustment in northern Europe. - NKG General Assembly "Planet Ocean and Geodesy", Copenhagen, Denmark, 09/05-09/08/2022.

43. Steffen, H., Olesen, O., Sutinen, R.: Editing the book on Glacially-Triggered Faulting – Views from behind the scenes. - 4th Symposium on late- and postglacial faults, Løkken, Denmark, 08/31-09/01/2022.

44. Steffen, H., Steffen, R.: Implications on glacially induced reactivation of the Holy Grail Fault from glacial isostatic adjustment modelling. - 4th Symposium on late- and postglacial faults, Løkken, Denmark, 08/31-09/01/2022.

45. Steffen, R., Steffen, H.: Glacially triggered earthquakes in Greenland and the Canadian Arctic. - 4th Symposium on late- and postglacial faults, Løkken, Denmark, 08/31-09/01/2022.

46. Seidel, E., Steffen, H., Steffen, R., Ahlrichs, N., Hübscher, C.: Glacially induced faulting in the southwestern Baltic Sea. - 4th Symposium on late- and postglacial faults, Løkken, Denmark, 08/31-09/01/2022.

47. Steffen, R., Steffen, H.: Stress-regime changes during a glacial cycle. - 4th Symposium on late- and postglacial faults, Løkken, Denmark, 08/31-09/01/2022.

48. Steffen, H., Johansson, J., Kierulf, H.P., Lidberg, M., Scherneck, H.-G.: BIFROST – A Global Navigation Satellite System project serving Earth sciences since three decades. - Geological Society of Sweden 150 Years Anniversary Meeting 2022, Uppsala, Sweden, 08/17-08/19/2022.

49. Arellano, S., Barmen, G., Calner, M., Dineva, S., Jacobsson, L., Juhlin, C., Lidberg, M., Lorenz, H., Lund, B., Manzotti, P., Mouyen, M., Pease, V., Roth, M., Schouenborg, B., Smirnov, M., Steffen, H.: EPOS Sweden: A national contribution to the European Plate Observing System-European Research Infrastructure Consortium. - Geological Society of Sweden 150 Years Anniversary Meeting 2022, Uppsala, Sweden, 08/17-08/19/2022.

50. Steffen, H., Steffen, R., Huang, P., Barletta, V.R., Nordman, M., Simpson, M.J.R., Tarasov, L., Zusevic, V.: NKG2022GIA – A new, forthcoming product for northern Europe of the Nordic Geodetic Commission. - Geological Society of Sweden 150 Years Anniversary Meeting 2022, Uppsala, Sweden, 08/17-08/19/2022.

51. Steffen, R., Steffen, H.: The effect of glacially induced stresses on the background stress regime – Insights from numerical models. - Geological Society of Sweden 150 Years Anniversary Meeting 2022, Uppsala, Sweden, 08/17-08/19/2022.

52. Steffen, R., Steffen, H., Kenyeres, A., Lidberg, M.: EuVeM2022: A 3D GNSS velocity field for Europe. - Geological Society of Sweden 150 Years Anniversary Meeting 2022, Uppsala, Sweden, 08/17-08/19/2022.

53. Steffen, H., Steffen, R.: Meter-scale Sea Level Marker Offset Due to Glacially Triggered Faulting in Arctic Canada. PALSEA Annual Meeting 2022 "Paleo Sea Level and Ice Sheets for Earth's Future", Singapore, 07/17-07/20/2022.

54. Steffen, R., Steffen, H., Huang, P.: Effect Of Earth Rheology on Sea-Level Change: Compressible vs. Incompressible. PALSEA Annual Meeting 2022 "Paleo Sea Level and Ice Sheets for Earth's Future", Singapore, 07/17-07/20/2022.

55. Steffen, H.: Vertical land motion and its uncertainty - Experiences from development of a land uplift model based on GNSS data and glacial isostatic adjustment model. - WCRP Sea level conference, Singapore, 07/12-07/18/2022.

56. Steffen, R., Steffen, H., Weiss, R.: Potential of tsunami in the North Atlantic Ocean due to glacially triggered earthquakes offshore Greenland. - WCRP Sea level conference, Singapore, 07/12-07/18/2022.

57. Reusen, J.M., Huang, P.P., Steffen, R., Steffen, H., Van Calcar, C.J., Root, B.C., Van der Wal, W.: On the effect of compressibility on horizontal motions in glacial isostatic adjustment. - ESA Living Planet Symposium, Bonn, Germany, 05/23-05/27/2022.

58. Weigelt, M., Jäggi, A., Meyer, U., Arnold, D., Meyer-Gürr, T., Dutt Vishwakarma, B., Devaraju, B., Steffen, H., Sosnica, K., Ebadi, S.: Bridging the gap between GRACE and GRACE-Follow On by the combination of HLSST and SLR. - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

59. Klemann, V., Austermann, J., Bagge, M., Barlow, N., Freymueller, J., Huang, P., Ivins, E.R., Lloyd, A., Martinec, Z., Milne, G., Rovere, A., Steffen, H., Steffen, R., van der Wal, W., Yousefi, M., Zhong, S.: Benchmark of numerical GIA codes capable of laterally heterogeneous earth structures. - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

60. Steffen, R., Steffen, H., Huang, P., Tarasov, L., Kjeldsen, K.K., Khan, S.A.: Three-dimensional velocity variations due to ice mass changes in Greenland – Insights from a compressible glacial isostatic adjustment model. - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

61. Reusen, J.M., Huang, P.P., Steffen, R., Steffen, H., Van Calcar, C.J., Root, B.C., Van der Wal, W.: The use of Non-Linear Geometry (NLGEOM) and gravity loading in flat and spherical Finite Element models of Abaqus for Glacial Isostatic Adjustment (GIA). - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

62. Huang, P., Steffen, R., Steffen, H., Klemann, V., van der Wal, W., Reusen, J., Tanaka, Y., Martinec, Z., Thomas, M.: A finite element approach to modelling Glacial Isostatic Adjustment on three-dimensional compressible earth models. - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

63. Silbermann, C.B., Kern, D., Steffen, R., Steffen, H., Bense, V., Nagel, T.: On the role of crustal deflection in the hydraulic-mechanical simulation of sedimentary basins during glacial cycles. - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

64. Kern, D., Silbermann, C.B., Magri, F., Steffen, R., Steffen, H., Malkovsky, V., Nagel, T.: Fault reactivation in crystalline rock as consequence of glaciation. - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

65. Steffen, H., Olesen, O., Sutinen, R.: Revised classification criteria for glacially induced faults. - 19th EGU General Assembly, Vienna, Austria, 05/23-05/27/2022.

66. Steffen, H.: NKG2022GIA activity status March 2022. - NKG Working Group of Geodynamics and Earth Observation Meeting, Gävle, Sweden 03/14-03/15/2022.

67. Steffen, H.: BIFROST2020 and NKG202XLU status March 2022. - NKG Working Group of Geodynamics and Earth Observation Meeting, Gävle, Sweden 03/14-03/15/2022.

68. Steffen, R., Steffen, H., Weiss, R., Lecavalier, B., Milne, G., Woodroffe, S., Bennike, O.: Earthquakes induced by ice-mass loss: A case example for southern Greenland. - NKG Working Group of Geodynamics and Earth Observation Meeting, Gävle, Sweden 03/14-03/15/2022.

69. Prush, V., Onwuemeka, J., Chien, J., Steffen, R., Steffen, H., Liu, Y., Rowe, C.D.: Combining Observations from Seismology, Geomorphology, and Geodynamic Modeling to Investigate the Driver(s) of Seismicity in the Western Québec Seismic Zone. - AGU Fall Meeting, New Orleans, LA, USA, 12/13-12/17/2021.

70. Prush, V., Onwuemeka, J.,  Liu, Y., Rowe, C.D., Steffen, R., Steffen, H.: Is seismicity in the western Québec Seismic Zone driven by glacial rebound? - Geological Society of America Connects 2021,  Portland, OR, USA, 10/10-10/13/2021, Abstracts with Programs 53(6), doi:10.1130/abs/2021AM-370867.

71. Reusen, J.M., Huang, P.P., Steffen, R., Steffen, H., Van Calcar, C.J., Root, B.C., Van der Wal, W.: The gravity force applied to (in)compressible flat and spherical finite element GIA models. - Workshop PALSEA - SERCE "Improving understanding of ice sheet and solid earth processes driving paleo sea level change", online, 09/13-09/16/2021.

72. Klemann, V., Rosentau, A., Bennike, O., Steffen, H., Baltic SLI Team: A Holocene sea-level database for the Baltic Sea. - Workshop PALSEA - SERCE "Improving understanding of ice sheet and solid earth processes driving paleo sea level change", online, 09/13-09/16/2021.

73. Steffen, R., Steffen, H., Kenyeres, A., Lidberg, M.:  Velocity Model for Europe: Application of the Least-Square Collocation. - EUREF 2021 Symposium, Ljubljana, Slovenia, 05/26-05/28/2021.

74. Steffen, H., Steffen, R., Kenyeres, A., Caporali, A., Zurutuza, J., Lidberg, M.: A strain rate model for Europe from a dense network of GNSS. - 18th EGU General Assembly "vEGU21: Gather Online", online, 04/19-04/30/2021.

75. Wu, P., Li, T., Steffen, H.: Effects of Glacial Isostatic Adjustment on Surface Topography, Flow Accumulation,  Stream Power & Sediment Transport Indexes in the Canadian Prairies. - 18th EGU General Assembly "vEGU21: Gather Online", online, 04/19-04/30/2021.

76. Steffen, R., Steffen, H., Weiss, R., Lecavalier, B., Milne, G., Woodroffe, S., Bennike, O.: Earthquakes induced by ice-mass loss: A case example for southern Greenland. - 18th EGU General Assembly "vEGU21: Gather Online", online, 04/19-04/30/2021.

77. Steffen, H.: Nya geodetiska forskningsresultat om landhöjning och klimatförändring. - Kartdagarna, online, 04/20-04/21/2021.

78. Brandes, C., ..., Steffen, H.,...: Current projects and future work in the low-strain intraplate area of northern Germany and Denmark. - Intraplate Active Tectonics and Seismicity in Central/Western Europe, online, 03/23/2021.

79. Steffen, H., Kierulf, H.P., Vestøl, O., Araszkiewicz, A., Kowalczyk, K., Barletta, V., Ning, T., NKG GNSS AC: BIFROST2020 and NKG202XLU status. - NKG Working Group of Geodynamics and Earth Observation Meeting, online, 03/16/2021.

80. Steffen, H.: NKG2022GIA activity status March 2021. - NKG Working Group of Geodynamics and Earth Observation Meeting, online, 03/16/2021.

81. Steffen, H.: Notes on the quality of global GPS databases before use in regional GIA investigations and on elastic correction. - NKG Working Group of Geodynamics and Earth Observation Meeting, online, 03/16/2021.

82. Steffen, R., Steffen, H.: Glacially-induced stresses and their effect on pre-existing faults: Insights from numerical models - 81. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, online in Kiel, Germany, 03/01-03/05/2021.

83. Steffen, H., Steffen, R., Brandes, C.: Mapping the area possibly affected by glacially-triggered faulting with numerical models: indications in Germany? - 81. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, online in Kiel, Germany, 03/01-03/05/2021.

84. Steffen, H., Olesen, O., Sutinen, R.: Glacially-Induced Faults: Classification Criteria and Occurrence in Germany. - 81. Jahrestagung der Deutschen Geophysikalischen Gesellschaft, online in Kiel, Germany, 03/01-03/05/2021.

85. Kelln, J., Dangendorf, S., Gräwe, U., Steffen, H., Patzke, J., Jensen, J.: Mean sea level changes in the southwestern Baltic Sea over the last 190 years. - 3rd Baltic Earth Conference, online, 06/01-06/05/2020.

86. Steffen, H., Steffen R., Tarasov L.: Indication of glacially-induced fault reactivation in Latvia, Lithuania and the Kaliningrad District of Russia from models of glacial isostatic adjustment. - 17th EGU General Assembly "Sharing Geoscience Online", 05/04-05/08/2020.

87. Steffen, H., Kierulf, H.P., Vestøl, O., Araszkiewicz, A., Kowalczyk, K., Barletta, V.: BIFROST2020 and NKG202XLU. - NKG Working Group of Geodynamics and Earth Observation Meeting, Reykjavik, Iceland, 03/09-03/11/2020.

88. Steffen, H.: NKG2022GIA activity status March 2020. - NKG Working Group of Geodynamics and Earth Observation Meeting, Reykjavik, Iceland, 03/09-03/11/2020.

89. Brandes, C., Plenefisch, T., Tanner, D.C., Gestermann, N., Steffen, H.: Deep Crustal, Intraplate Earthquakes in Northern Germany: Moho Detachment Tectonics and the Reactivation of a Fossil Megathrust. - AGU Fall Meeting, San Francisco, CA, USA, 12/09-12/13/2019.

90. Steffen, H., Olsson, P.-A.: The Fennoscandian land uplift model NKG2016LU and uncertainties from models of glacial isostatic adjustment. - WORKSHOP ON SEA LEVEL RISE, IPCC SROCC SCIENCE AND PLANNING FOR CLIMATE ADAPTATION, Kolmården, Sweden, 11/07-11/08/2019.

91. Steffen H.: Tack GNSS! Nya forskningsresultat om landhöjning och klimatförändring. - GNSS/Swepos®-seminariet, Gävle, Sweden, 10/22/2019.

92. Olsson, P.-A., Steffen, H., Breili, K., Ophaug, V., Bilker-Koivula, M., Oja, T., Timmen, L.: The Nordic-Baltic absolute gravity project and its relation to GNSS-derived vertical surface deformation rates. - TGSMM 2019, St. Petersburg, Russia, 10/01-10/04/2019.

93. Steffen, R., Steffen, H., Tarasov, L.: What is the GIA lithosphere? - Workshop on GIA, Ice Sheets, and Sea-level Change - Observations, Analysis, and Modelling, Ottawa, Canada, 09/24-09/26/2019.

94. Steffen, H., Steffen, R., Brandes, C., Tarasov, L.: The southern and eastern limits of glacially induced faulting in Europe determined from models of glacial isostatic adjustment. - Workshop on GIA, Ice Sheets, and Sea-level Change - Observations, Analysis, and Modelling, Ottawa, Canada, 09/24-09/26/2019.

95. Steffen, H., Steffen, R., Tarasov, L.: Modelling of glacially-induced stress changes in Latvia, Lithuania and the Kaliningrad District of Russia. - International Field Symposium of the Peribaltic Working Group, Greifswald, Germany, 09/07-09/13/2019.

96. Steffen, H., Steffen, R.: On models of glacially induced fault reactivation and how to constrain them. - International Field Symposium of the Peribaltic Working Group, Greifswald, Germany, 09/07-09/13/2019.

97. Suursaar, Ü., Kall, T., Steffen, H.: Application of glacial isostatic adjustment models at the edge of the Fennoscandian ice sheet. - IEEE Geoscience and Remote Sensing Society Symposium, Yokohama, Japan, 07/28-08/02/2019.

98. Müller, K., Winsemann, J., Polom, U., Frechen, M., Tsukamoto, S., Igel, J., Spies, T., Lege, T., Steffen, H., Brandes, C.: Lateglacial reactivation of the Harz Boundary Fault (northern Germany) caused by glacial isostatic adjustment. - 20th INQUA Congress, Dublin, Ireland, 07/25-07/31/2019.

99. Steffen, R., Steffen, H., Lecavalier, B., Milne, G., Tarasov, L.: Implications of lithospheric thickness models in glacial-isostatic adjustment modelling of Greenland. - XXVII General Assembly of the IUGG, Montreal, Canada, 07/08-07/18/2019.

100. Steffen, R., Legrand, J., Steffen, H., Lidberg, M., Kenyeres, A., Brockmann, E., Lutz, S.: Deformation model for Europe: application of the least-square collocation. - XXVII General Assembly of the IUGG, Montreal, Canada, 07/08-07/18/2019.

101. Weigelt, M., Jäggi, A., Meyer, U., Arnold, D., Mayer-Gürr, T., Zehentner, N., Vishwakarma, B.D., Devaraju, B., Steffen, H., Sośnica, K.: Bridging the gap between GRACE and GRACE-Follow On the final series from HLSST and SLR. - XXVII General Assembly of the IUGG, Montreal, Canada, 07/08-07/18/2019.

102. Li, T., Khan, N., Horton, B. P., Wu, P., Huang, P., Steffen, H., Wang, H.: Uncertainties of Glacial Isostatic Adjustment model predictions in North America in the presence of lateral heterogeneity. - XXVII General Assembly of the IUGG, Montreal, Canada, 07/08-07/18/2019.

103. Wang, H., Xiang, L., Steffen, H., Wu, P., Jiang, L., Shen, Q., Piretzidis, D., Sideris, M. G., Hayashi, M., Jia, L.: Converse trends of the terrestrial and ground water storage changes in Canada and the United States. - 2019 ISPRS Workshop on Cryosphere and Hydrosphere for Global Change Studies (CHGCS 2019) in conjunction with the ISPRS Geospatial Week 2019, Enschede, The Netherlands, 06/10-06/14/2019.

104. Olsson, P.-A., Breili, K., Ophaug, V., Steffen, H., Bilker-Koivula, M., Nielsen, E., Oja, T., Timmen, L.: NKG2016LU gdot a model of the postglacial gravity change in Fennoscandia. - EUREF 2019 Symposium, Tallinn, Estonia, 05/20-05/22/2019.

105. Steffen, R., Legrand, J., Steffen, H., Lidberg, M., Kenyeres, A., Brockmann, E., Lutz, S.: Towards a deformation model for Europe using least-square collocation. - EUREF 2019 Symposium, Tallinn, Estonia, 05/20-05/22/2019.

106. Kempe, C., Alfredsson, A., Alm, L., Engfeldt, A., Eurenius, B., Jivall, L., Lidberg, M., Lilje, M., Ning, T., Norin, D., Olsson, P.-A., Steffen, H., Wiklund, P., and Ågren, J.: National Report of Sweden to the EUREF 2019 Symposium geodetic activities at Lantmäteriet. - EUREF 2019 Symposium, Tallinn, Estonia, 05/20-05/22/2019.

107. Brandes, C., Plenefisch, T., Tanner, D. C., Gestermann, N., Steffen, H.: Tiefe Erdbeben in der Unterkruste in Norddeutschland - tektonische Ursachen und Interpretation. - DGMK/ÖGEW Frühjahrstagung 2019, Fachbereich Aufsuchung und Gewinnung, Celle, Germany, 04/25-04/26/2019.

108. Plenefisch, T., Gestermann, N., Brandes, C., Tanner, D. C., Steffen, H.: Tiefe Erdbeben in der Unterkruste in Norddeutschland Seismologische Beobachtungen und Analysen. - DGMK/ÖGEW Frühjahrstagung 2019, Fachbereich Aufsuchung und Gewinnung, Celle, Germany, 04/25-04/26/2019.

109. Häkli, P., Lidberg, M., Jivall, L., Steffen, H., Kierulf, H., Ågren, J., Vestøl, O., Lahtinen, S., Steffen, R., Tarasov, L.: New horizontal intraplate velocity model for Nordic and Baltic countries. - FIG Working Week 2019, Hanoi, Vietnam, 04/22-04/26/2019.

110. Steffen, H., Steffen, R., Brandes, C.: The southern and eastern limits of glacially induced faulting in Europe. - 16th EGU General Assembly, Vienna, Austria, 04/07-04/12/2019.

111. Steffen, R., Legrand, J., Steffen, H., Lidberg, M., Kenyeres, A., Brockmann, E., Lutz, S.: Deformation model for Europe: application of the least-square collocation. - 16th EGU General Assembly, Vienna, Austria, 04/07-04/12/2019.

112. Engfeldt, A., Olsson, P.-A., Steffen, H., Lidberg, M., Ågren, J.: Realisation of an international gravity reference frame on national level experiences from finalising the new Swedish gravity reference frame RG 2000. - 16th EGU General Assembly, Vienna, Austria, 04/07-04/12/2019.

113. Zurutuza, J., CEGRN team: The CEGRN Network: towards 25 years of high quality GNSS data for geokinematical analysis in Central Europe. - 16th EGU General Assembly, Vienna, Austria, 04/07-04/12/2019.

114. Müller, K., Winsemann, J., Polom, U., Igel, J., Tsukamoto, S., Steffen, H., Spies, T., Lege, T., Frechen, M., Brandes, C.: Paleoseismological investigation of northern Germany. - 16th EGU General Assembly, Vienna, Austria, 04/07-04/12/2019.

115. Steffen, H.: NKG2022GIA activity status March 2019. - NKG Working Group of Geodynamics Meeting, Copenhagen, Denmark, 03/11-03/13/2019.

116. Steffen, H., Steffen, R., Lidberg, M., Nilfouroushan, F., Brockmann, E., Lutz, S., Kenyeres, A., Legrand, J.: Entwicklung eines EUREF-Deformationsmodells und eines EPOS strain-rate-Modells für Europa. - 51. Herbsttagung des Arbeitskreises Geodäsie/Geophysik (AKGG), Schneefernerhaus, Germany, 11/06-11/09/2018.

117. Gebauer, A., Steffen, H., Widmer-Schnidrig, R., Zürn, W.: Modellierung eines realen Luftdruckszenarios für das Schwarzwald-Observatorium (BFO). - 51. Herbsttagung des Arbeitskreises Geodäsie/Geophysik (AKGG), Schneefernerhaus, Germany, 11/06-11/09/2018.

118. Steffen, H., Steffen, R., Brandes, C.: The southern and eastern limits of glacially induced faulting in Europe. - International Palaeoseismological Field Workshop, Vilnius, Lithuania, 09/17-09/21/2018, Keynote Lecture.

119. Vestøl, O., Ågren, J., Steffen, H., Kierulf, H., Tarasov, L.: Uncertainty estimation for the new semi-empirical land uplift model NKG2016LU. - 18th General Assembly of the NKG, Helsinki, Finland, 09/03-09/06/2018.

120. Steffen, H., Barletta, V., Kollo, K., Milne, G. A., Nordman, M., Olsson, P. A., Simpson, M. J. R., Tarasov, L., Ågren, J.: NKG2022GIA towards a new model of glacial isostatic adjustment in Fennoscandia. - 18th General Assembly of the NKG, Helsinki, Finland, 09/03-09/06/2018.

121. Häkli, P., Lidberg, M., Steffen, H., Kierulf, H.P., Ågren, J., Vestøl, O., Tarasov, L.: New horizontal intraplate velocity model for Nordic and Baltic countries. - 18th General Assembly of the NKG, Helsinki, Finland, 09/03-09/06/2018.

122. Fernandes, R., Lidberg, M., Steffen, H., Bos, M., Bruyninx, C., Crocker, P., Dousa, J., Walpersdorf, A., Socquet, A., Avallone, A., Ganas, A., Ionescu, C., Kenyeres, A., Ofeigsson, B., Ozener, H., Vergnolle, M., Liwosz, T., Soehne, W., Bezdeka, P., Cardoso, R., Cotte, N., Couto, R., D’Agostino, N., Deprez, A., Fabian, A., F´eres, L., Legrand, J., Manteigueiro, J., Menut, J.-L., Nastase, E., Ngo, K.-M., Pereira, F., Rodrigues, A., Sigurðarson, F., Vaclavovic, P.: EPOS GNSS current status of service and product implementation. - 18th General Assembly of the NKG, Helsinki, Finland, 09/03-09/06/2018.

123. Engfeldt, A., Lidberg, M., Sekowski, M., Dykowski, P., Krynski, J., Ågren, J., Olsson, P.-A., Bryskhe, H., Steffen, H., Nielsen, J. E.: RG 2000 the new gravity reference frame of Sweden. - 18th General Assembly of the NKG, Helsinki, Finland, 09/03-09/06/2018.

124. Ganas, A., Kapetanidis, V., Nilfouroushan, F., Steffen, H., Lidberg, M., Deprez, A., Socquet, A., Avallone, D’Agostino, N., Legrand, J., Kenyeres, A., Bos, M., Fernandes, R.: Developments on the EPOS-IP pan-european strain rate product. - 36th General Assembly of the European Seismological Commission, La Valletta, Malta, 09/02-09/07/2018.

125. Steffen, H., Steffen, R., Brandes, C.: The southern and eastern limits of glacially induced faulting in Europe. - Postglacial Fault Symposium, Kautokeino, Norway, 08/27-08/30/2018.

126. Brandes, C., Steffen, H., Sandersen, P. B. E., Wu, P., Winsemann, J.: Post-glacial faulting along the NW segment of the Sorgenfrei-Tornquist Zone, northern Denmark. - Postglacial Fault Symposium, Kautokeino, Norway, 08/27-08/30/2018.

127. Müller, K., Polom, U., Winsemann, J., Tsukamoto, S., Steffen, H., Spies, T., Lege, T., Frechen, M., Franzke, H.-J., Brandes, C.: Active faults and paleoseismicity in northern Germany induced by glacial isostatic adjustment: An example from the Harz boundary fault zone. – Postglacial Fault Symposium, Kautokeino, Norway, 08/27-08/30/2018.

128. Lilje C., Alm L., Jivall L., Kempe C., Lidberg M., Lilje M., Ning T., Olsson P.-A., Steffen H., Wiklund P., Ågren J.: National report of Sweden to the EUREF 2018 Symposium geodetic activities at Lantmäteriet. - EUREF 2018 Symposium, Amsterdam, The Netherlands, 05/30-06/01/2018.

129. Steffen, H., Ganas, A., Kapetanidis, V., Nilfouroushan, F., Lidberg, M., EPOS WP10 Members: The EPOS GNSS Strain Rate Product (Y2018) status and open questions. - EUREF 2018 Symposium, Amsterdam, The Netherlands, 05/30-06/01/2018.

130. Lidberg, M., Steffen, H., Brockmann, E., Lutz, S., Kenyeres, A.: Recent developments from the Working Group on Deformation Models. - EUREF 2018 Symposium, Amsterdam, The Netherlands, 05/30-06/01/2018.

131. Engfeldt, A., Lidberg, M., Sekowski, M., Dykowski, P., Krynski, J., Ågren, J., Olsson, P.-A., Bryskhe, H., Steffen, H., Nielsen, J.E.: RG2000 the new gravity system of Sweden. – EUREF 2018 Symposium, Amsterdam, The Netherlands, 05/30-06/01/2018.

132. Engfeldt, A., Lidberg, M., Sekowski, M., Dykowski, P., Krynski, J., Ågren, J., Olsson, P.-A., Bryskhe, H., Steffen, H., Nielsen, J.E.: RG 2000 the new gravity reference frame of Sweden. FIG Congress 2018, Istanbul, Turkey, 05/06-05/11/2018.

133. Uta, P., Brandes, C., Bönnemann, C., Plenefisch, T., Steffen, H., Winsemann, J.: Active Tectonics in Northwest Germany: Glacial Isostatic Adjustment and/or a Consequence of Hydrocarbon Production? - DGMK/ÖGEW-Frühjahrstagung 2018, Fachbereich Aufsuchung und Gewinnung, Celle, Germany, 04/18-04/19/2018.

134. Steffen, H., Olsson, P.-A., Oja, T., Tarasov, L.: Identifying characteristics of ice history models using the relation between rates of change of deformation and gravity. - 15th EGU General Assembly, Vienna, Austria, 04/08-04/13/2018.

135. Engfeldt, A., Bryskhe, H., Lidberg, M., Olsson, P.-A., Steffen, H., Ågren, J.: New national gravity reference frame in Sweden RG 2000. - 15th EGU General Assembly, Vienna, Austria, 04/08-04/13/2018.

136. Klemann, V., Steffen, H., the Baltic SLI team: A holocene sea-level database for the Baltic Sea. - 15th EGU General Assembly, Vienna, Austria, 04/08-04/13/2018.

137. Nordman, M., Milne, G., Tarasov, L., Steffen, H.: Effect of GIA model resolution on relative sea level and land motion computations in Fennoscandia. - 15th EGU General Assembly, Vienna, Austria, 04/08-04/13/2018.

138. Weigelt, M., Jäggi, A., Meyer, U., Arnold, D., Grahsl, A, Mayer-Gürr, T., Zehentner, N., Steffen, H., Tourian, M. J., Dahle, C., Flechtner, F., So´snica, K., Devaraju, B., Vishwakarma, B.D., Sneeuw, N.: Hl-SST and SLR bridging the gap between GRACE and GRACE Follow-On. - 15th EGU General Assembly, Vienna, Austria, 04/08-04/13/2018.

139. Steffen, H.: NKG2022GIA status. - NKG Working Group of Geodynamics Meeting, Helsinki, Finland, 03/12-03/14/2018.

140. Li, T., Wu, P., Steffen, H., Wang, H.: Searching for 3D viscosity models of Glacial Isostatic Adjustment in support of the global ICE-6G C ice history model. - AGU Fall Meeting, New Orleans, USA, 12/11-12/15/2017; Abstract G12A-06.

141. Steffen, H., Johansson, J., Kierulf, H. P., Kristiansen, O., Lidberg, M., Tarasov, L.: Die aktuellen BIFROST-GPS Ergebnisse: Rückschlüsse auf laterale Untergrundstrukturen in Nordeuropa anhand der Horizontalgeschwindigkeiten. - 50. Herbsttagung des Arbeitskreises Geodäsie/Geophysik (AKGG), Blaibach, Germany, 10/24-10/27/2017.

142. Brandes, C., Steffen, H., Steffen, R., Wu, P.: Glacial isostatic adjustment as controlling factor for paleoseismic events and historic earthquakes in northern Central Europe. - 5th International Colloquium Historical Earthquakes, Paleoseismology, Neotectonics and Seismic Hazard, Hanover, Germany, 10/11-10/13/2017.

143. Steffen, H., Johansson, J., Kierulf, H. P., Kristiansen, O., Lidberg, M., Tarasov, L.: Constraints on lateral variations of lithospheric thickness and mantle viscosity in Fennoscandia from the recent GNSS velocity field of the BIFROST project. - Workshop on Glacial Isostatic Adjustment and Elastic Deformation, Reykjavik, Iceland, 09/04-09/07/2017.

144. Steffen, R., Steffen, H., Audet, P., Milne, G. A., Lecavalier, B., Woodroffe, S. A., Lund, B.: Glacial isostatic adjustment model for Greenland with laterally varying lithospheric thickness determined from geophysical data. - Workshop on Glacial Isostatic Adjustment and Elastic Deformation, Reykjavik, Iceland, 09/04-09/07/2017.

145. Wu, P., Li, T., Steffen, H., Wang, H.: Laterally heterogeneous viscosity models of Glacial Isostatic Adjustment in support of the global ICE-6G C ice history model. - Workshop on Glacial Isostatic Adjustment and Elastic Deformation, Reykjavik, Iceland, 09/04-09/07/2017.

146. Vestøl, O., Ågren, J., Steffen, H., Kierulf, H. P., Lidberg, M., Oja, T., Rüdja, A., Kall, T., Saaranen, V., Engsager, K., Jepsen, C., Liepins, I., Parseliunas, E., Tarasov, L.: The improved semi-empirical Fennoscandian postglacial land uplift model NKG2016LU. - Workshop on Glacial Isostatic Adjustment and Elastic Deformation, Reykjavik, Iceland, 09/04-09/07/2017.

147. Steffen, R., Steffen, H., Wu, P., Lund, B.: Fault reactivation due to glacially induced stresses. - Workshop on Glacial Isostatic Adjustment and Elastic Deformation, Reykjavik, Iceland, 09/04-09/07/2017.

148. Steffen, H., Vestøl, O., Ågren, J., Kierulf, H. P., Lidberg, M., Oja, T., Rüdja, A., Kall, T., Saaranen, V., Engsager, K., Jepsen, C., Liepins, I., Parseliunas, E., Tarasov, L.: The improved semi-empirical Fennoscandian postglacial land uplift model NKG2016LU. - International WCRP/IOC Conference ”Regional Sea Level Changes and Coastal Impacts”, New York, NY, USA, 07/10-07/14/2017.

149. Vestøl, O., Ågren, J., Steffen, H., Kierulf, H. P., Lidberg, M., Oja, T., Rüdja, A., Kall, T., Saaranen, V., Engsager, K., Jepsen, C., Liepins, I., Parseliunas, E., Tarasov, L.: The improved semi-empirical Fennoscandian postglacial land uplift model NKG2016LU. - Nordic EPOS Meeting, Helsinki, Finland, 06/14-06/16/2017.

150. Lidberg, M., Ågren, J., Steffen, H.: On the use of crustal deformation models in the management of ETRS89 realizations in Fennoscandia. - 79th FIG Working Week ”Surveying the world of tomorrow - From digitalisation to augmented reality”, Helsinki, Finland, 05/29-06/02/2017.

151. Vestøl, O., Ågren, J., Steffen, H., Kierulf, H. P., Lidberg, M., Oja, T., Rüdja, A., Kall, T., Saaranen, V., Engsager, K., Jepsen, C., Liepins, I., Parseliunas, E., Tarasov, L.: The improved semi-empirical Fennoscandian postglacial land uplift model NKG2016LU. - EUREF 2017 Symposium, Wroclaw, Poland, 05/17-05/19/2017.

152. Kempe, C., Jivall, L., Norin, D., Steffen, H., Ågren, J., Engfeldt, A., Ning, T., Alm, L., Jämtnäs, L., Lilje, M., Lidberg, M., and Wiklund, P. (2017): National Report of Sweden to the EUREF 2017 Symposium geodetic activities at Lantmäteriet. - EUREF 2017 Symposium, Wroclaw, Poland, 05/17-05/19/2017.

153. Brandes, C., Plenefisch, T., Tanner, D. C., Gestermann, N., Steffen, H.: Deep earthquakes in the lithospheric structure of northern Germany. - 14th EGU General Assembly, Vienna, Austria, 04/23-04/28/2017.

154. Li. T., Wu, P., Steffen, H.: Glacial Isostatic Adjustment with ICE-6G C(VM5a) and Laterally Heterogeneous Mantle Viscosity. - 14th EGU General Assembly, Vienna, Austria, 04/23-04/28/2017.

155. Steffen, H.: Relative sea-level data collection work for the Baltic Sea. - NKG Working Group of Geodynamics Meeting, Riga, Latvia, 03/15-03/16/2017.

156. Steffen, H.: Uncertainty estimates for GIA models NKG2016GIA prel0306 and NKG2016GIA prel0907. - NKG Working Group of Geodynamics Meeting, Riga, Latvia, 03/15-03/16/2017.

157. Steffen, H., Tarasov, L.: Mantle Viscosity in Fennoscandia from GRACE and an Ensemble of 3-D Thermo-mechanically Coupled Ice Sheet Models. - AGU Fall Meeting, San Francisco, CA, USA, 12/12-12/16/2016; Abstract G11A-1055.

158. Steffen, H.: On the continuation of the NKG GIA modelling project, towards NKG2018GIA, with a note on a relative sea-level database for the Baltic and North seas. - NKG Joint WG Workshop on Postglacial Land Uplift Modelling, Gävle, Sweden, 12/01-12/02/2016.

159. Steffen, H.: Computation of a new GIA model optimized also in the horizontal components. - NKG Joint WG Workshop on Postglacial Land Uplift Modelling, Gävle, Sweden, 12/01-12/02/2016.

160. Steffen, H.: The GIA model NKG2016GIA prel0306. - NKG Joint WG Workshop on Postglacial Land Uplift Modelling, Gävle, Sweden, 12/01-12/02/2016.

161. Brandes, C., Steffen, H., Steffen, R., Winsemann, J., Tanner, D. C., Wu, P.: Historic intraplate earthquakes in northern Central Europe are caused by glacial isostatic adjustment- 2nd Conference Key Topics on Deep Geological Disposal Challenges of a Site Selection Process: Society Procedures Safety, Cologne, Germany, 09/26-09/28/2016.

162. Steffen, R., Steffen, H.: Glazial induzierte Erdbeben. - 49. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Annweiler am Trifels, Germany, 10/25-10/28/2016.

163. Jäggi, A., Meyer, U., Jean, Y., Susnik, A., Dach, R., Weigelt, M., van Dam, T., Li, Z., Chen, Q., Flechtner, F., Gruber, C., Poropat, L., Güntner, A., Gouweleeuw, B., Mayer-Gürr, T., Kvas, A., Klinger, B., Martinis, S., Zwenzer, H., Bruinsma, S., Lemoine, J.-M., Biancale, R., Flury, J., Bandikova, T., Bourgogne, S., Steffen, H., Teixeira da Encarnaçao, J., Horwath, M.: European Gravity Service for Improved Emergency Management Status and Project Highlights. - 1st Joint Commission 2 and IGFS Meeting International Symposium on Gravity, Geoid and Height Systems, Thessaloniki, Greece, 09/19-09/23/2016.

164. Steffen, H., Barletta, V., Kierulf, H. P., Kollo, K., Milne, G. A., Nordman, M., Olsson, P. A., Simpson, M. J. R., Tarasov, L., Vestøl O., Ågren, J.: Models of land uplift and glacial isostatic adjustment in northern Europe. - Baltic2016, Gdansk, Poland, 09/12-09/16/2016.

165. Simpson, M. J. R., Nilsen, J. E. Ø., Ravndal, O. R., Breili, K., Sande, H., Kierulf, H. P., Steffen, H., Jansen, E., Carson M., and Vestøl O.. Sea Level Change for Norway: Past and Present Observations and Projections to 2100. - 4th Nordic Conference on Climate Change Adaptation, Bergen, Norway, 08/29-08/31/2016.

166. Simpson, M. J. R., Nilsen, J. E. Ø., Ravndal, O. R., Breili, K., Sande, H., Kierulf, H. P., Steffen, H., Jansen, E., Carson M., and Vestøl O.. Sea Level Change for Norway: Past and Present Observations and Projections to 2100. - ECRA/BCCR Workshop ”Sea Level Change and Coastal Impacts - Towards adaptation strategies”, Bergen, Norway, 06/21-06/22/2016.

167. Steffen, H., Brandes, C., Steffen, R., Wu, P.: Glacially induced seismicity in Europe. - 18th International Symposium on Geodynamics and Earth Tides ”Intelligent Earth system sensing, scientific enquiry and discovery”, Trieste, Italy, 06/05-06/09/2016.

168. Jivall, L., Norin, D., Lilje, M., Lidberg, M., Wiklund, P., Engberg, L. E., Kempe, C., Ågren, J., Engfeldt, A., and Steffen, H.: National Report of Sweden to the EUREF 2016 Symposium geodetic activities at Lantmäteriet. - EUREF 2016 Symposium, San Sebastian, Spain, 05/25- 05/27/2016.

169. Steffen, H.: Världsarvet Höga Kusten - från dåtid till framtid i ett geodynamiskt perspektiv. - MätKart2016, Visby, Sweden, 05/18-05/20/2016.

170. Nilfouroushan, F., Jivall, L., Lilje, C., Steffen, H., Lidberg, M., Johansson, J., Jarlemark, P.: Evaluation of newly installed SWEPOS mast stations, individual vs. type PCV antenna models and comparison with pillar stations. - 13th EGU General Assembly, Vienna, Austria, 04/17-04/22/2016.

171. Simpson, M. J. R., Nilsen, J. E. Ø., Ravndal, O. R., Breili, K., Sande, H., Kierulf, H. P., Steffen, H., Jansen, E., Carson M., Vestøl O.. Sea Level Change for Norway - Past and Present Observations and Projections to 2100. - 13th EGU General Assembly, Vienna, Austria, 04/17-04/22/2016.

172. Steffen, H., Johansson, J., Kierulf, H., Kristiansen, O., Lidberg M.: Constraints on lateral variations of lithospheric thickness and mantle viscosity from GNSS horizontal velocities of the BIFROST project. - 13th EGU General Assembly, Vienna, Austria, 04/17-04/22/2016.

173. Steffen, H., Barletta, V., Kollo, K., Milne, G., Nordman, M., Olsson, P. A., Simpson, M., Tarasov, L., Ågren, J.: NKG201xGIA first results for a new model of glacial isostatic adjustment in Fennoscandia. - 13th EGU General Assembly, Vienna, Austria, 04/17-04/22/2016.

174. Steffen, H., Barletta, V., Kollo, K., Milne, G., Nordman, M., Olsson, P. A., Simpson, M., Tarasov, L., Ågren, J.: NKG201xGIA status March 2016. - NKG Working Group of Geodynamics Meeting, Tallinn, Estonia, 03/17-03/18/2016.

175. Steffen, H., Wu, P., Wang, H. S.: Optimal locations of sea-level indicators in glacial isostatic adjustment investigations. - AGU Fall Meeting, San Francisco, CA, USA, 12/14-12/18/2015; Abstract G33B-1153.

176. Simpson, M. J. R., Nilsen, J. E. Ø., Ravndal, O. R., Breili, K., Sande, H., Kierulf, H. P., Steffen, H., Jansen, E., Carson M., and Vestøl O.. Sea Level Change for Norway - Past and Present Observations and Projections to 2100. - Geodesi- og hydrografidagene 2015, Oslo, Norway, 11/18-11/19/2015.

177. Brandes, C., Steffen, H., Steffen, R., Winsemann, J., Wu, P.: Historic intraplate earthquakes in northern Central Europe are induced by glacial isostatic adjustment. - Earthquake activity and hazard in northwest Europe, Gileppe Dam Tower, 10/15/2015.

178. Brandes, C., Steffen, H., Steffen, R., Wu, P.: Climate-change induced earthquakes in northern Central Europe. - GeoBerlin 2015, Berlin, Germany, 10/04-10/07/2015.

179. Olsson, P. A., Engfeldt, A., Scherneck, H.-G., Steffen, H., Ågren, J., Lidberg M.: Swedish repeated absolute gravity observations in the Fennoscandian land uplift region. - 26th IUGG General Assembly, Prague, Czech Republic, 06/22-07/02/2015.

180. Simpson, M. J. R., Nilsen, J. E. Ø., Ravndal, O. R., Breili, K., Sande, H., Kierulf, H. P., Steffen, H., Jansen, E., Carson M., and Vestøl O.. Projections of 21st Century Sea Level Changes for Norway. - Workshop global and regional sea level variability and change, Palma de Mallorca, Spain, 06/10-06/12/2015.

181. Steffen, H.: Models of land uplift in northern Europe. - Workshop global and regional sea level variability and change, Palma de Mallorca, Spain, 06/10-06/12/2015.

182. Lidberg M., Steffen, H., Johansson, J., Kierulf, H., Kristiansen, O.: The BIFROST project: 21 years of search for the true crustal deformation in Fennoscandia. - EUREF 2015 Symposium, Leipzig, Germany, 06/03-06/05/2015.

183. Norin, D., Lilje, M., Lidberg, M., Wiklund, P., Engberg, L. E., Jivall, L., Kempe, C., Ågren, J., Engfeldt, A., Steffen, H.: National Report of Sweden to the EUREF 2015 Symposium geodetic activities at Lantmäteriet. - EUREF 2015 Symposium, Leipzig, Germany, 06/03-06/05/2015.

184. Brandes, C., Steffen, H., Steffen, R., Wu, P.: Intraplate earthquakes in northern Central Europe as a consequence of glacial isostatic adjustment. - DGMK/ÖGEW-Frühjahrstagung, Celle, Germany, 04/22-04/23/2015.

185. Steffen, H., Wu, P., Wang, H. S.: Optimal locations of sea-level indicators in glacial isostatic adjustment investigations. - 12th EGU General Assembly, Vienna, Austria, 04/12-04/17/2015.

186. Steffen, H., Wu, P.: The sensitivity of GNSS measurements in Fennoscandia to distinct three-dimensional upper-mantle structures. - 12th EGU General Assembly, Vienna, Austria, 04/12-04/17/2015.

187. Brandes, C., Steffen, H., Steffen, R., Wu, P.: GIA induced intraplate seismicity in northern Central Europe. - 12th EGU General Assembly, Vienna, Austria, 04/12-04/17/2015.

188. Steffen, H., Olsson, P. A.: Framtidens landhöjning och havsniv°aändring i Sverige. – Position 2015, Stockholm, Sweden, 03/17-03/19/2015.

189. Steffen, H., Barletta, V., Kollo, K., Milne, G., Nordman, M., Olsson, P. A., Simpson, M., Tarasov, L., Ågren, J.: NKG201xGIA status March 2015. - NKG Working Group of Geodynamics Meeting, Oslo, Norway, 03/11-03/12/2015.

190. Brandes, C., Steffen, H., Winsemann, J., Tanner, D. C., Wu, P.: The Osning Thrust: a postglacial fault outside the former glaciated area. - Post-Glacial Faults Mini-symposium, Uppsala, Sweden, 03/05-03/06/2015.

191. Steffen, R., Wu, P., Lund, B., Steffen, H., Eaton, D.W.: Modelling of glacially induced fault movement in 2D and 3D. - Post-Glacial Faults Mini-symposium, Uppsala, Sweden, 03/05-03/06/2015.

192. Steffen, H., Steffen, R., Brandes, C.: The ”other” post-glacial faults - the Osning Thrust in Germany and more candidates! - Post-Glacial Faults Mini-symposium, Uppsala, Sweden, 03/05-03/06/2015.

193. Steffen, H., Steffen, R.: Postglacial rebound and earthquakes in Sweden. - Forum naturkatastrofer, Stockholm, Sweden, 11/18-11/19/2014.

194. Weigelt, M. L., van Dam, T. M., Baur, O., Tourian, M. J., Steffen, H., Sosnica, K., Jäggi, A., Zehentner, N. Mayer-Gürr, T., Sneeuw, N. J.: How well can the combination hlSST and SLR replace GRACE? A discussion from the point of view of applications. - GRACE Science Team Meeting 2014, Potsdam, Germany, 09/29-10/01/2014.

195. Caporali, A., Bruyninx, C., Fernandes da Silva, R., Ganas, A., Lidberg, M., Kenyeres, A., Stangl, G., Steffen, H., Zurutuza, J.: An analysis of the Kefalonia seismic sequence of Jan. 26 - Feb. 3, 2014. - WEGENER 2014: Measuring and Modelling our Dynamic Planet, Leeds, United Kingdom, 09/01-09/04/2014.

196. Simpson, M. J. R., Nielsen, J. E., Breili, K., Kierulf, H. P., Steffen, H., Ravndal, O. R.: Regional 21st century sea-level projections for Norway based on IPCC AR5 science. - 17. NKG General Assembly, Gothenburg, Sweden, 09/01-09/04/2014.

197. Poutanen, M., Steffen, H.: Land uplift at Kvarken Archipelago / High Coast UNESCO World Heritage area. - 17. NKG General Assembly, Gothenburg, Sweden, 09/01-09/04/2014.

198. Kierulf, H. P., Steffen, H., Simpson, M. J. R., Lidberg, M: A GNSS velocity field for Fennoscandia and a consistent comparison to glacial isostatic adjustment models. - 17. NKG General Assembly, Gothenburg, Sweden, 09/01-09/04/2014.

199. Steffen, H., Barletta, V., Kollo, K., Milne, G., Nordman, M., Olsson, P.-A., Simpson, M. J. R., Ågren, J.: NKG201xGIA a model of glacial isostatic adjustment for Fennoscandia. - 17. NKG General Assembly, Gothenburg, Sweden, 09/01-09/04/2014.

200. Alfredsson, A., Engberg, L. E., Engfeldt, A., Jivall, L., Kempe, C., Lidberg, M., Lilje, C., Lilje, M., Norin, D., Steffen, H., Wiklund, P., Ågren, J.: National Report of Sweden to the EUREF 2014 Symposium geodetic activities at Lantmäteriet. - EUREF 2014 Symposium, Vilnius, Lithuania, 06/03-06/07/2014.

201. Zurutuza, J., Caporali, A., Bruyninx, C., Fernandes da Silva, R., Ganas, A., Lidberg, M., Kenyeres, A., Stangl, G., Steffen, H.: An analysis of the Kefalonia seismic sequence of Jan. 26 - Feb. 3, 2014. - EUREF 2014 Symposium, Vilnius, Lithuania, 06/03-06/07/2014.

202. Steffen, H.: On the accuracy of Glacial Isostatic Adjustment models with special attention to ice models. - EUREF 2014 Symposium, Vilnius, Lithuania, 06/03-06/07/2014.

203. Farinotti, D., Güntner, A., Longuevergne, L., Moholdt, G., Steffen, H., Düthmann, D., Gafurov, A.: Reconstructing 50 years of glacier mass changes in Central Asia. - 11th EGU General Assembly, Vienna, Austria, 04/27-05/02/2014.

204. Weigelt, M. L., van Dam, T. M., Tourian, M. J., Steffen, H., Baur, O., Jäggi, A., Prange, L., Meyer, U., Bock, H., Sneeuw, N. J.: On the Capability to Derive Mass Estimates from high-low Satellite-to-Satellite Tracking data. - 11th EGU General Assembly, Vienna, Austria, 04/27-05/02/2014.

205. Lidberg, M., Kierulf, H. P., Johansson, J. M., Ning, T., Nordman, M., Steffen, H.: Twenty years of search for the true crustal deformation in Fennoscandia from the BIFROST project. - 11th EGU General Assembly, Vienna, Austria, 04/27-05/02/2014.

206. Brandes, C., Steffen, H., Wu, P.: Glacial Isostatic Adjustment as a key to understand the neotectonics of northern Central Europe. - 11th EGU General Assembly, Vienna, Austria, 04/27-05/02/2014.

207. Poutanen, M., Steffen, H.: Land uplift at Kvarken archipelago and High Coast UNESCO World Heritage area: - 11th EGU General Assembly, Vienna, Austria, 04/27-05/02/2014.

208. Steffen, H.: The status of GIA models for Fennoscandia. Meeting of the EUREFWorking Group on Deformation Models, Gävle, Sweden, 03/13/2014.

209. Steffen, H., Barletta, V., Milne, G., Nordman, M., Simpson, M., Ågren, J.: Towards NKG201xGIA - a GIA Model for Fennoscandia - Status March 2014. - NKG Working Group of Geodynamics Meeting, Gävle, Sweden, 03/10-03/11/2014.

210. Weigelt, M. L., van Dam, T. M., Tourian, M. J., Steffen, H., Baur, O., Jäggi, A., Prange, L., Meyer, U., Bock, H., Sneeuw, N. J.: On the Capability to Derive Mass Estimates from high-low Satellite-to-Satellite Tracking data. - AGU Fall Meeting, San Francisco, CA, USA, 12/09-12/13/2013; Abstract G33B-0987.

211. Lidberg, M., Kierulf, H. P., Johansson, J. M., Ning, T., Nordman, M., Steffen, H.: Twenty years of search for the true crustal deformation in Fennoscandia from the BIFROST project. – AGU Fall Meeting, San Francisco, CA, USA, 12/09-12/13/2013; Abstract G43B-0979.

212. Brandes, C., Steffen, H., Wu, P.: Neotectonics of northern Central Europe: the legacy of Glacial Isostatic Adjustment. - AGU Fall Meeting, San Francisco, CA, USA, 12/09-12/13/2013; Abstract G43B-0972.

213. Vink, A., Steffen, H., Naumann, M., Frechen, M., Reinhardt, L.: Relative sea-level change in northwest Europe and the southern North Sea during the Holocene: Determination of isostatic and (neo)tectonic subsidence in the German Bight. - Geopotenzial Deutsche Nordsee, Hannover, Germany, 11/26/2013.

214. Engberg, L. E., Engfeldt, A., Jivall, L., Kempe, C., Lidberg, M., Lilje, C., Lilje, M., Norin, D., Steffen, H., Wiklund, P., Ågren, J.: National Report of Sweden to the EUREF 2013 Symposium geodetic activities at Lantmäteriet. - EUREF Symposium 2013, Budapest, Hungary, 05/29-05/31/2013.

215. Steffen, H.: Height and gravity changes due to glacial isostatic adjustment. - EUREF Symposium 2013, Budapest, Hungary, 05/29-05/31/2013.

216. Steffen, H., Lidberg, M.: First steps and tests in the development of an EUREF Velocity Model. - EUREF Symposium 2013, Budapest, Hungary, 05/29-05/31/2013.

217. Brandes, C., Winsemann, J., Steffen, H., Plenefisch, T., Bönnemann, C.: Glacial isostatic adjustment as a key for understanding the neotectonics of northern Germany. - DGMK/ÖGEW Frühjahrstagung, Celle, Germany, 04/18-04/19/2013.

218. Steffen, R., Wu, P., Steffen, H., Eaton, D. W.: Implementing faults in glacial isostatic adjustment models using ABAQUS. - 17th International Symposium on Earth Tides, Warsaw, Poland, 04/15-04/19/2013.

219. Rosat, S., Valty, P., Steffen, H., Metivier, L., De Linage, C., Arnoso, J.: Gravity and Height Change Inter-comparison: a review. - 17th International Symposium on Earth Tides, Warsaw, Poland, 04/15-04/19/2013.

220. Steffen, H., Lidberg, M., Altamimi, Z., Bruyninx, C., Caporali, A., Dousa, J., Habrich, H., Kenyeres, A., da Silva Fernandes, R.M., Stangl, G.: Development of the EUREF Velocity Model - Status and Roadmap for Future Work. - 10th EGU General Assembly, Vienna, Austria, 04/07-04/12/2013.

221. Wu, P., Wang, H.S., Steffen, H.: The Role of Thermal Effect on Mantle Seismic Anomalies under Laurentia and Fennoscandia from Observations of Glacial Isostatic Adjustment. - 10th EGU General Assembly, Vienna, Austria, 04/07-04/12/2013.

222. Steffen, H., Wang, H., Jia, L., Wu, P., Jiang, L., Hsu, H., Xiang, L., Wang, Z., Hu, B.: Large-scale hydrological changes in North America and Scandinavia from GRACE. - 10th EGU General Assembly, Vienna, Austria, 04/07-04/12/2013.

223. Brandes, C., Steffen, H., Wu, P., Tanner, D. C., Winsemann, J.: Comparing the New Madrid Seismic Zone with the Osning Thrust: implications for GIA-induced intraplate tectonics in northern Germany. - 10th EGU General Assembly, Vienna, Austria, 04/07-04/12/2013.

224. Steffen, R., Wu, P., Steffen, H., Eaton, D.W.: Fault slip during a glacial cycle. - 10th EGU General Assembly, Vienna, Austria, 04/07-04/12/2013.

225. Steffen, R., Wu, P., Steffen, H., Eaton, D.W.: Implementing faults in glacial isostatic adjustment models using ABAQUS. - 10th EGU General Assembly, Vienna, Austria, 04/07-04/12/2013.

226. Steffen, H., Lidberg, M., Ågren, J.: A Preliminary GIA Model for Fennoscandia - Roadmap to NKG201xLU. - 2nd NKG Joint WG Workshop on Postglacial Land Uplift Modelling, Reykjavik, Iceland, 03/12/2013.

227. Brandes, C., Winsemann, J., Roskosch, J., Meinsen, J., Tanner, D. C., Frechen, M., Steffen, H., Wu, P.: Lateglacial faulting along the Osning Thrust in Central Europe. - GeoHannover 2012, Hannover, Germany, 10/01-10/03/2012.

228. Steffen, R., Wu, P., Steffen, H., Eaton, D. W.: Earthquake activity in northeastern Canada and its relation to postglacial rebound. - DynaQlim workshop Lithosphere-Cryosphere Interactions, Bochum, Germany, 09/26-09/27/2012.

229. Brandes, C., Winsemann, J., Roskosch, J., Meinsen, J., Tanner, D. C., Frechen, M., Steffen, H., Wu, P.: Glacially-induced neotectonics along the Osning Thrust in northern Germany. – DynaQlim workshop Lithosphere-Cryosphere Interactions, Bochum, Germany, 09/26-09/27/2012.

230. Brandes, C., Winsemann, J., Roskosch, J., Meinsen, J., Tanner, D. C., Frechen, M., Steffen, H., Wu, P.: Neotectonic activity of the Osning Thrust in the Lateglacial. - GV and SEDIMENT meeting 2012, Hamburg, Germany, 09/23-09/28/2012.

231. Brandes, C., Winsemann, J., Roskosch, J., Meinsen, J., Tanner, D. C., Frechen, M., Steffen, H., Wu, P.: Lateglacial neotectonics of the Osning Thrust in northern Germany. - 36. Hauptversammlung der Deutschen Quartärvereinigung (DEUQUA), Bayreuth, Germany, 09/16-09/19/2012.

232. Wu, P., Steffen, H., Steffen, R.: Using ABAQUS for glacial isostatic adjustment modeling and stress analysis. - 3rd Int. Geoqus Conference, Potsdam, Germany, 08/21-08/23/2012.

233. Steffen, R., Wu, P., Steffen, H., Eaton, D. W.: Implementing faults in glacial isostatic adjustment models using ABAQUS. - 3rd Int. Geoqus Conference, Potsdam, Germany, 08/21-08/23/2012.

234. Wang, H., Jia, L., Steffen, H., Wu, P., Jiang, L., Xiang, L., Wang, Z., Hu, B.: An inversion method for the separation of present-day water transport and glacial isostatic adjustment and its results. - CWRA-CGU National conference, Banff, AB, Canada, 06/05-06/08/2012.

235. Wu, P., Steffen, H., and Wang, H.S.: Using observations of GIA to constrain the role of thermal effect on mantle seismic anomalies. - CWRA-CGU National conference, Banff, AB, Canada, 06/05-06/08/2012.

236. Steffen, R., Steffen, H., Jentzsch, G.: A three-dimensional Moho depth model for the Tien Shan from EGM2008 gravity data. - CWRA-CGU National conference, Banff, AB, Canada, 06/05-06/08/2012.

237. Steffen, R.,Wu, P., Eaton, D.W., Steffen, H.: Effects of changes in frictional strength and mantle viscosity on the stress behaviour in northeastern Canada. - CWRA-CGU National conference, Banff, AB, Canada, 06/05-06/08/2012, Winner of the CGU Geodesy Student Award.

238. Wu, P., Wang, H.S., Steffen, H.: The role of thermal effect on mantle seismic anomalies from observations of GIA. - 9th EGU General Assembly, Vienna, Austria, 04/22-04/27/2012; Geophysical Research Abstracts 14, EGU2012-13078.

239. Steffen, H., Wu, P.: Determination of mantle viscosity in Fennoscandia from multiple datasets. - 9th EGU General Assembly, Vienna, Austria, 04/22-04/27/2012; Geophysical Research Abstracts 14, EGU2012-12858.

240. Brandes, C., Winsemann, J., Roskosch, J., Meinsen, J., Tanner, D. C., Frechen, M., Steffen, H., Wu, P.: Young glacially-induced tectonic activity of the Osning Thrust in Central Europe. - 9th EGU General Assembly, Vienna, Austria, 04/22-04/27/2012; Geophysical Research Abstracts 14, EGU2012-4745.

241. Wang, H., Jia, L., Steffen, H., Wu, P., Jiang, L., Xiang, L.,Wang, Z.: An inversion method for the separation of present-day water transport and glacial isostatic adjustment and its results. - 9th EGU General Assembly, Vienna, Austria, 04/22-04/27/2012; Geophysical Research Abstracts 14, EGU2012-943.

242. Steffen, R., Wu, P., Eaton, D., Steffen, H.: Effects of changes in frictional strength and mantle viscosity on the stress behaviour in northeastern Canada. - 9th EGU General Assembly, Vienna, Austria, 04/22-04/27/2012; Geophysical Research Abstracts 14, EGU2012-904.

243. Steffen, H.: Geoscientific tools for subsurface modelling of Canada’s Arctic Basins. – Coordinated Scientific Drilling in the Beaufort Sea - Addressing past, present and future changes in Arctic marine and terrestrial systems, Kananaskis, Alberta, Canada, 02/12-02/15/2012.

244. Steffen, H., Wu, P.: Post-glacial induced stress changes in central Europe - large enough to trigger earthquakes? - AGU Fall Meeting, San Francisco, CA, USA, 12/03-12/08/2011; Abstract T31B-2336.

245. Ask, M. V. S., Kukkonen, I. T., Olesen, O., Steffen, H., Schmitt, D. R.: An developing ICDP drilling project on intraplate seismicity: Drilling Active Faults in Northern Europe (DAFNE). - AGU Fall Meeting, San Francisco, CA, USA, 12/03-12/08/2011; Abstract T34C-06.

246. Steffen, H., Wu, P., Wang, H.: Optimal locations for absolute gravity measurements and sensitivity of GRACE observations for constraining glacial isostatic adjustment on the northern hemisphere. - CGU-CSAFM Annual Meeting ”Geophysical Sciences for the Future”, Banff, Canada, 05/15-05/18/2011.

247. Wu, P., Steffen, H., Wang, H.S.: The role of thermal effect on mantle seismic anomalies from observations of Glacial Isostatic Adjustment. - CGU-CSAFM Annual Meeting ”Geophysical Sciences for the Future”, Banff, Canada, 05/15-05/18/2011.

248. Taghvakish, S., Steffen, H.: Short-term flood prediction and monitoring by combining GRACE and SAR measurements: case study Red River. - 8th EGU General Assembly, Vienna, Austria, 04/03-04/08/2011; Geophysical Research Abstracts 13, EGU2011-13071.

249. Steffen, H., Wu, P., Wang, H.: Optimal locations for absolute gravity measurements and sensitivity of GRACE observations for constraining glacial isostatic adjustment on the northern hemisphere. - 8th EGU General Assembly, Vienna, Austria, 04/03-04/08/2011; Geophysical Research Abstracts 13, EGU2011-505.

250. Flechtner, F., Wickert, J., Kusche, J., Steffen, H., Bettadpur, S., Tapley B., Watkins, M.: GRACE: A highly successful satellite mission supporting the goals of the WEGENER project. - 8th EGU General Assembly, Vienna, Austria, 04/03-04/08/2011.

251. Taghvakish, S., and Steffen, H.: Short-term flood prediction and monitoring by combining GRACE and SAR measurements: case study Red River. - CGU Hydrology Section, Annual Student Meeting, Prairies Region, Calgary, Canada, 01/29/2011.

252. Steffen, H., Wu, P., and Wang, H.: Determination of the Earth’s structure in Fennoscandia from GRACE and implications on the optimal post-processing of GRACE data. - Department of Geoscience Open House and Current Research Symposium, Calgary, AB, Canada, 11/25/2010.

253. Wu, P., and Steffen, H.: Spatio-temporal evolution of stress and fault stability in glaciated areas. - ICDP Workshop ”Postglacial Fault Drilling in Northern Europe”, Skokloster, Sweden, 10/04-10/07/2010.

254. Steffen, R., Steffen, H., and Jentzsch, G.: A 3D Moho depth model for the Tien Shan from EGM2008 gravity data. - Gravity field of the Earth: IGFS2-2010, Fairbanks, AK, USA, 09/20-09/22/2010.

255. Steffen, H., Wu, P., and Wang, H.: Determination of the Earth’s structure in Fennoscandia from GRACE and implications on the optimal post-processing of GRACE data. - Gravity field of the Earth: IGFS2-2010, Fairbanks, AK, USA, 09/20-09/22/2010.

256. Vink, A., Steffen, H., Naumann, M., Frechen, M., and Reinhardt, L. (2010). Relative sea-level change in northwest Europe and the southern North Sea during the Holocene – Determination of isostatic and tectonic subsidence in the German Bight based on observational and model results. - 35th biannual conference of the Deutsche Quart ärvereinigung DEUQUA e.V., Greifswald, Germany, 09/13-09/17/2010.

257. Wu, P., and Steffen, H.: Post-glacial induced earthquakes - a review. - NWMO Geoscience Seminar, Orangeville, ON, Canada, 06/08-06/09/2010.

258. Steffen, H., Wu, P., and Wang, H.S.: Determination of the Earth’s structure in Fennoscandia from GRACE and implications on the optimal post-processing of GRACE data. - 3rd Joint CMOS-CGU Congress, Ottawa, ON, Canada, 05/31-06/04/2010.

259. Wu, P., Steffen, H., and Wang, H.S.: Optimal locations for GPS measurements in North America and northern Europe for constraining Glacial Isostatic Adjustment. - 3rd Joint CMOS-CGU Congress, Ottawa, ON, Canada, 05/31-06/04/2010.

260. Wu, P., Steffen, H., and Wang, H.S.: Optimal locations of GPS measurements in Laurentide and Fennoscandia for constraining 3D GIA models. - 7th EGU General Assembly, Vienna, Austria, 05/02 - 05/07/2010; Geophysical Research Abstracts 12.

261. Bratfisch, R., Jentzsch, G., and Steffen, H.: A 3D Moho depth model for the Tien Shan from EGM2008 gravity data. - 7th EGU General Assembly, Vienna, Austria, 05/02 - 05/07/2010; Geophysical Research Abstracts 12, Winner of the EGU Young Scientists Outstanding Poster Paper (YSOPP) Award 2010 in the Seismology division.

262. Bratfisch, R., Jentzsch, G., Steffen, H., Naujoks, M., Kley, J., and Torizin, J.: Gravimetric investigations in the Tien Shan and in the region of Almaty (Kazakhstan). - 7th EGU General Assembly, Vienna, Austria, 05/02 - 05/07/2010; Geophysical Research Abstracts 12.

263. Steffen, H., Wu, P., and Wang, H.S.: Glacial isostatic adjustment in Fennoscandia and the inference of the 3D mantle structure in Northern Europe from GRACE data. - 7th EGU General Assembly, Vienna, Austria, 05/02 - 05/07/2010.

264. Wu, P., Steffen, H., and Wang, H.S.: Optimal locations of GPS measurements in Laurentide and Fennoscandia for constraining 3D GIA models. - AGU Fall Meeting, San Francisco, CA, USA, 12/14 -12/18/2009; Abstract G53C-0685.

265. Steffen, H., Wu, P., and Wang, H.S.: The viscosity structure of Northern Europe inferred from GRACE data. - AGU Fall Meeting, San Francisco, CA, USA, 12/14 -12/18/2009; Abstract G42A-07.

266. Müller, J., Steffen, H., Boike, J., and Peterseim, N.: (Accelerated) mass changes in the Siberian permafrost regions from GRACE. - AGU Fall Meeting, San Francisco, CA, USA, 12/14 -12/18/2009; Abstract C42A-06.

267. Bratfisch, R., Jentzsch, G., Steffen, H., Naujoks, M., Kley, J., and Torizin, J.: Gravimetric investigations in the Tien Shan and in the region of Almaty (Kazakhstan). - AGU Fall Meeting, San Francisco, CA, USA, 12/14 -12/18/2009.

268. Steffen, H., Müller, J., Boike, J., and Peterseim, N.: Mass variations in Siberia from GRACE and their relation to permafrost changes. - GRACE Science Team Meeting, Austin, TX, USA, 11/05 - 11/06/2009.

269. Müller, J., Peterseim, N., and Steffen, H. : Mass variations in the Siberian permafrost regions from GRACE. - Geodesy for Planet Earth - IAG, Buenos Aires, Argentina, 08/31-09/04/2009.

270. Wu, P., and Steffen, H.: Post-glacial induced earthquakes - a review. - Understanding Glacial Isostatic Adjustment - A Joint DynaQlim / GGOSWorkshop, Espoo, Finland, 06/23 - 06/26/2009.

271. Vink, A., Steffen, H., Reinhardt, L., Frechen, M., and Kaufmann, G.: Holocene relative sealevel change, isostatic subsidence and the radial viscosity structure of the mantle of northwest Europe and the southern North Sea: Observational and model results. - 6th EGU General Assembly, Vienna, 04/19 - 04/24/2009; Geophysical Research Abstracts 11, EGU2009-9270-2.

272. Peterseim, N., Steffen, H., and Müller, J.: Determination of mass variations in the Siberian permafrost regions using GRACE monthly solutions. - 6th EGU General Assembly, Vienna, Austria, 04/19 - 04/24/2009; Geophysical Research Abstracts 11, EGU2009-10682.

273. Müller, J., Steffen, H., and Naeimi, M.: Mass Variations in Fennoscandia from GRACE. – Meeting Working Group for Geodynamics of the Nordic Geodetic Commission, Gävle, Sweden, 03/17 - 03/19/2009.

274. Steffen, H., Petrovic, S., Müller, J., Schmidt, R., Wünsch, J., Barthelmes, F., and Kusche, J.: The significance of secular trends of mass variations derived from GRACE monthly solutions. - AGU Fall Meeting, San Francisco, CA, USA, 12/15 -12/19/2008; Eos Trans. AGU, 89(53) Fall Meet. Suppl., Abstract G13A-0637.

275. Müller, J., Güntner, A., Petrovic, S., Steffen, H., and Werth, S.: Secular Gravity Changes from GRACE and their Application in Studies of the Global Isostatic Adjustment and Hydrology (SECGRA). - 2nd SPP 1257 Colloquium, Munich, Germany, 10/06 - 10/08/2008.

276. Müller, J., and Steffen, H.: Determination of the Fennoscandian Land Uplift and Mass Variations in Northern Europe from GRACE Data (GIA-GRACE). - 2nd SPP 1257 Colloquium, Munich, Germany, 10/06 - 10/08/2008.

277. Steffen, H., and Müller, J.: Determination of the Fennoscandian Land Uplift and Mass Variations in Northern Europe from GRACE Data. - 2nd SPP 1257 Colloquium, Munich, Germany, 10/06 - 10/08/2008.

278. Steffen, H.: Using GRACE for land uplift investigations - significance, problems and validation of results. - 41. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Hirschegg, Austria, 09/30 - 10/03/2008.

279. Schmitt, L., Larsson, S., Burdukiewicz, J., Ziker, J., Svedhage, K., Zamon, J., and Steffen, H.: Wo kommen eigentlich die Schweden her? Eine Betrachtungsweise durch Zusammenspiel von Geophysik und Archäologie. - 41. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Hirschegg, Austria, 09/30 - 10/03/2008.

280. Steffen, H., Müller, J., and Denker, H.: Determination of land uplift in Northern Europe and North America from GRACE data. - GeodeticWeek 2008, Bremen, Germany, 09/30 -10/02/2008.

281. Steffen, H., Petrovic, S., Müller, J., Schmidt, R., Wünsch, J., Barthelmes, F., and Kusche, J.: Significance of secular trends of mass variations determined from GRACE monthly solutions. - 16th Int. Symp. on Earth Tides, Jena, Germany, 09/01 - 09/05/2008.

282. Steffen, H.: The subsurface instrument location in view of barometric pressure-induced noise. - 16th Int. Symp. on Earth Tides, Jena, Germany, 09/01 - 09/05/2008.

283. Müller, J., Steffen, H., Gitlein, O., Timmen, L., and Denker, H.: Bestimmung der Landhebung in Nordeuropa mit Hilfe von GRACE Daten und Absolutschweremessungen. – Forschungsinitiative Geoprozesse, Hanover, Germany, 07/18/2008.

284. Müller, J., and Steffen, H.: Significance of secular trends of mass variations determined from GRACE monthly solutions. - International Symposium on ”Gravity, Geoid and Earth Observation GGEO2008”, Chania, Crete, Greece, 06/23 - 06/27/2008.

285. Steffen, H., Müller, J., and Denker, H.: Glacial isostatic adjustment in Fennoscandia from GRACE data: A signal separation with the help of geodynamical and hydrological models. – International Symposium on ”Gravity, Geoid and Earth Observation GGEO2008”, Chania, Crete, Greece, 06/23 - 06/27/2008.

286. Steffen, H., Gitlein, O., Denker, H., Müller, J., and Timmen, L.: Does GRACE really see GIA in Fennoscandia? - Meeting Working Group for Geodynamics of the Nordic Geodetic Commission, Copenhagen, Denmark, 04/22 - 04/24/2008.

287. Steffen, H., Müller, J., and Denker, H.: Using GRACE for land uplift investigations. - 5th EGU General Assembly, Vienna, Austria, 04/13 - 04/18/2008; Geophysical Research Abstracts 10, EGU2008-A-06636.

288. Steffen, H., Gitlein, O., Denker, H., Müller, J., and Timmen, L.: Fennoscandian land uplift observed by GRACE and absolute gravity measurements. - 5th EGU General Assembly, Vienna, Austria, 04/13 - 04/18/2008; Geophysical Research Abstracts 10, EGU2008-A-06688.

289. Steffen, H., Müller, J., and Denker, H.: Determination of the Fennoscandian Land Uplift and Mass Variations in Northern Europe from GRACE Data. - 2. SPP 1257 Workshop, Herrsching, Germany, 03/31 - 04/02/2008.

290. Steffen, H., and Müller, J.: Determination of GIA using GRACE. - 1st DynaQlim meeting, Copenhagen, Denmark, 02/04 - 02/05/2008.

291. Müller, J., Steffen, H., Gitlein, O., Denker, H., and Timmen, L.: Glacial isostatic adjustment on the Northern Hemisphere - new results from GRACE. - AGU Fall Meeting, San Francisco, CA, USA, 12/10 - 12/14/2007.

292. Steffen, H., Vink, A., Lampe, R., Kaufmann, G., and Reinhardt, L.: Post-glaziale Küstenentwicklung der südlichen Nordsee und der südlichen Ostsee anhand geodynamischer Modellierungen. - 40. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Freudenstadt/Lauterbad, Germany, 10/16 - 10/19/2007.

293. Steffen, H., Müller, J., and Denker, H.: Post-glacial rebound in Fennoscandia and North America - new results from GRACE. - GRACE Science Team Meeting, Potsdam, Germany, 10/15 - 10/17/2007.

294. Steffen, H., Jahr, T., and Kaufmann, G.: Signals of water-level changes - a comparison of tilt recordings at Moxa with results of a FE modelling. - 2nd Geoscientific Abaqus Workshop, Potsdam, Germany, 10/10 - 10/12/2007.

295. Vink, A., Steffen, H., Reinhardt, L., Kaufmann, G., and Frechen, M.: Holocene relative sealevel change and isostatic subsidence of northwest Europe and the southern North Sea: Observational and model results. - 97th Annual GV Meeting and International Conference of the Geologische Vereinigung e.V. ”The Oceans in the Earth System”, Bremen, Germany, 10/01 - 10/05/2007.

296. Steffen, H., Gitlein, O., Timmen, L., Müller, J., and Denker, H.: Bestimmung der Landhebung in Nordeuropa mit Hilfe von GRACE-Daten und Vergleich mit Absolutschweremessungen. - Geodetic Week 2007, Leipzig, Germany, 09/25 - 09/27/2007.

297. Vink, A., Steffen, H., Reinhardt, L., and Kaufmann, G.: Holocene relative sea-level change and isostatic subsidence of northwest Europe and the southern North Sea: Observational and model results. - GeoPomerania 2007, Szczecin, Poland, 09/24 - 09/26/2007.

298. Müller, J., Steffen, H., and Denker, H.: Analysis of mass variations in northern glacial rebound areas from recently processed GRACE data. - IUGG 2007, Perugia, Italy, 07/02 - 07/13/2007.

299. Steffen, H., Vink, A., Reinhardt, L., and Kaufmann, G.: Holocene relative sea-level change, isostatic subsidence and the radial viscosity structure of the mantle of north-western Europe (Belgium, the Netherlands, Germany, southern North Sea). - IUGG 2007, Perugia, Italy, 07/02 - 07/13/2007.

300. Steffen, H., Vink, A., Lampe, R., Kaufmann, G., and Reinhardt, L.: Post-glaziale Küstenentwicklung der südlichen Nordsee und der südlichen Ostsee anhand geophysikalischer Modellierungen. - 2nd Geocommission young scientists meeting, Weimar, Germany, 06/28 - 06/30/2007.

301. Müller, J., Steffen, H., and Denker, H.: Mass variations in areas of glacial isostatic adjustment on the Northern Hemisphere from GRACE data. - 4th EGU General Assembly, Vienna, Austria, 04/15 - 04/20/2007; Geophysical Research Abstracts 9, 02653.

302. Müller, J., Steffen, H., and Denker, H.: Mass variations in areas of glacial isostatic adjustment on the Northern Hemisphere from GRACE data. - Meeting Working Group for Geodynamics of the Nordic Geodetic Commission, Tallinn, Estonia, 03/27 - 03/29/2007.

303. Lampe, R., Janke, W., Endtmann, E., Meyer, H., and Steffen, H.: Holocene sea-level rise and isostatic adjustment along the southern Baltic coast. - Baltic Sea Science Congress 2007, Rostock-Warnemünde, Germany, 03/19 - 03/23/2007.

304. Kaufmann, G., Steffen, H., and Romanov, D.: Geophysikalische Untersuchungen an der Schluckstelle Windmühlenweg (Jerstedter Graben, Goslar). - 39. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Bremen, Germany, 10/17 - 10/20/2006.

305. Vink, A., Steffen, H., Reinhardt, L., and Kaufmann, G.: Die Struktur der Erde im Bereich der Nordsee: Was zeigen neue Meerespiegeldaten in einer geodynamischen Modellierung? - 39. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Bremen, Germany, 10/17 - 10/20/2006.

306. Steffen, H., Kaufmann, G., and Wu, P.: Investigation of the glacial isostatic adjustment in Fennoscandia with a flat three-dimensional Earth model. - 1st Geoscientific Abaqus Workshop, Bochum, Germany, 10/04 - 10/06/2006.

307. Steffen, H., and Kaufmann, G.: Deformation changes induced by lake-level fluctuations of the Hohenwarte reservoir, Thuringia, Germany - an estimation with numerical modelling. - 1st Geoscientific Abaqus Workshop, Bochum, Germany, 10/04 - 10/06/2006.

308. Vink, A., Steffen, H., Reinhardt, L., and Kaufmann, G.: Meerespiegelkurven von Nordwest-Europa: Nachweis isostatischer Absenkung an der deutschen Nordseeküste. - 24. General Assembly of the working group ”Geography of oceans and coasts”, Wilhelmshaven, Germany, 04/27 - 04/29/2006.

309. Steffen, H., Kaufmann, G., and Wu, P.: Three-dimensional finite-element modelling of the glacial isostatic adjustment in Fennoscandia. - 3rd EGU General Assembly, Vienna, Austria, 04/02 - 04/07/2006; Geophysical Research Abstracts 8, 01057.

310. Steffen, H., and Kaufmann, G.: Numerical Modelling of deformation changes induced by lake-level fluctuations of the Hohenwarte reservoir, Thuringia, Germany. - 3rd EGU General Assembly, Vienna, Austria, 04/02 - 04/07/2006; Geophysical Research Abstracts 8, 00121.

311. Steffen, H., and Kaufmann, G.: Influence of the Hohenwarte reservoir on tilt and strain observations at Moxa. - Workshop on analysis of data from superconducting gravimeters and deformation observations regarding geodynamic signals and environmental influences (ETsCSG7), Jena, Germany, 03/27 - 03/31/2006.

312. Steffen, H.: Barometric pressure-induced noise at the Black Forest Observatory, Germany - new results from numerical modelling - Workshop on analysis of data from superconducting gravimeters and deformation observations regarding geodynamic signals and environmental influences (ETsCSG7), Jena, Germany, 03/27 - 03/31/2006.

313. Steffen, H., Brunk, W., Siebert, I., Siebert, M., Wedeken, U., and Leven, M.: Die Rettung und Erweiterung der Wiechert’schen Erdbebenwarte Göttingen - Probleme und Arbeit eines Vereins. - 66. General Assembly of the German Geophysical Society (DGG), Bremen, Germany, 03/06 - 03/09/2006.

314. Steffen, H., Kaufmann, G., and Wu, P.: 3D Finite Element Modellierung zur glazialen Isostasie von Fennoskandien. - 66. General Assembly of the German Geophysical Society (DGG), Bremen, Germany, 03/06 - 03/09/2006.

315. Steffen, H., Kaufmann, G., and Wu, P.: 3D Finite Element Modellierung zur glazialen Isostasie von Fennoskandien. - 38. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Oppurg, Germany, 10/26 - 10/29/2005.

316. Steffen, H., and Kaufmann, G.: Numerische Modellierung von Deformationsänderungen verursacht durch Wasserspiegelschwankungen des Hohenwarte-Stausees. - 38. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Oppurg, Germany, 10/26 - 10/29/2005.

317. Steffen, H., and Kaufmann, G.: Glacial isostatic adjustment of Northern and Middle Europe and the radial viscosity structure of the Earth’s mantle. - 2nd EGU General Assembly, Vienna, Austria, 04/24 - 04/29/2005; Geophysical Research Abstracts 7, 00728.

318. Warner, C., Haase, O., Steffen, H., and Steinhoff, W.: An estimation of the vibration damping of a laboratory room using seismic methods. - 2nd EGU General Assembly, Vienna, Austria, 04/24 - 04/29/2005; Geophysical Research Abstracts 7, 03969.

319. Steffen, H., and Kaufmann, G.: Glaziale Isostasie und die Viskositätsstruktur von Nord- und Mitteleuropa. - 37. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Viechtach, Germany, 11/03 - 11/06/2004.

320. Steffen, H., Kuhlmann, S., Jahr, T., and Kroner, C.: Comparison of barometric pressure induced noise in horizontal components - results from numerical modelings for the observatories Moxa and Schiltach, Germany. - 15th Int. Symp. on Earth Tides, Ottawa, ON, Canada, 08/02-08/06/2004.

321. Steffen, H., Jahr, T., and Kroner, C.: Numerical modeling of barometric pressure induced seismic noise at the Black Forest Observatory (BFO), Germany. - 1st EGU General Assembly, Nice, France, 04/26 - 04/30/2004; Geophysical Research Abstracts 6, 01937.

322. Steffen, H., Kuhlmann, S., Jahr, T., and Kroner, C.: Vergleich luftdruckinduzierten Rauschens auf Horizontalkomponenten - Erkenntnisse aus numerischen Modellierungen zu den Observatorien Moxa und Schiltach. - 64. General Assembly of the German Geophysical Society (DGG), Berlin, Germany, 03/08 - 03/12/2004.

323. Steffen, H., Jahr, T., and Kroner, C.: Numerische Modellierungen zu luftdruckinduziertem Rauschen am Observatorium Schiltach. - 64. General Assembly of the German Geophysical Society (DGG), Berlin, Germany, 03/08 - 03/12/2004.

324. Forbriger, T., Steffen, H., Widmer-Schnidrig, R., and Zürn, W.: Unidentified Seismic Objects Observed At Black Forest Observatory (USO’s@BFO). - 36. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Grubenhagen, Germany, 10/29 - 11/01/2003.

325. Steffen, H., and Kroner, C.: Numerische Modellierungen zu luftdruckinduziertem Rauschen am BFO. - 36. Herbsttagung des Arbeitskreises Geodäsie/Geophysik, Grubenhagen, Germany, 10/29 - 11/01/2003. 

Other presentations at universities & institutes

1. Steffen, H.: Tom and Jerry’s chase in space and other light Friday afternoon adventures. - FATS, Calgary, AB, Canada, 03/12/2010.

2. Steffen, H.: Numerische Modellierungen zu luftdruckinduziertem Rauschen. - Geophysical seminar, Göttingen, Germany, 05/04/2004.