Publications

Peer-reviewed publications

32. Steffen, R., Steffen, H., Kenyeres, A., Nilsson, T., Lidberg, M. (submitted): EuVeM2022 - An European GNSS Velocity Model based on Least-Squares Collocation.

31. Berg, D., Barletta, V.R., Hassan, J., Lippert, E.Y.H., Colgan, W., Bevis, M., Steffen, R., Khan, S.A. (2024): Vertical land motion due to present-day ice loss from Greenland’s and Canada’s peripheral glaciers. Geophysical Research Letters 51. doi:10.1029/2023GL104851. Open access.

30. Huang, P., Steffen, R., Steffen, H., Klemann, V., van der Wal, W., Reusen, J., Wu, P., Tanaka, Y., Martinec, Z., Thomas, M. (2023): A finite element approach to modelling Glacial Isostatic Adjustment on three-dimensional compressible earth models. Geophysical Journal International 235. doi:10.1093/gji/ggad354. Open access.

29. Reusen, J.M., Steffen, R., Steffen, H., Root, B.C., van der Wal, W. (2023): Simulating horizontal crustal motions of glacial isostatic adjustment using compressible cartesian models. Geophysical Journal International 235. doi:10.1093/gji/ggad232. Open access.

28. Weerdesteijn, M.F.M., Naliboff, J.B., Conrad, C.P., Reusen, J.M., Steffen, R., Heister, T., Zhang, J. (2023): Modeling viscoelastic solid earth deformation due to ice age and contemporary glacial mass changes in ASPECT. Geochemistry, Geophysics, Geosystems 4. doi:10.1029/2022GC010813. Open access.

27. Pham, L.T., Ghomsi, F.E.K. Vu, T.V., Oksum, E., Steffen, R., Tenzer, R. (2023): Mapping the structural configuration of the western Gulf of Guinea using advanced gravity interpretation methods. Physics and Chemistry of the Earth 129. doi:10.1016/j.pce.2022.103341. Open access.

26. Pisarska-Jamrozy, M., Belzyt, S., Börner, A., Hoffmann, G., Hüneke, H., Kenzler, M., Rother, H., Steffen, R., Steffen, H. (2022): Late Pleistocene earthquakes imprinted on glaciolacustrine sediments at Gnitz Peninsula (Usedom Island, NE Germany). Quaternary Science Reviews 296. doi:10.1016/j.quascirev.2022.107807.

25. Kierulf, H.P., Kohler, J., Boy, J.-P., Geyman, E.C., Mémin, A., Omang, O.C.D., Steffen, H., Steffen, R. (2022): Time-varying uplift in Svalbard - an effect of glacial changes. Geophysical Journal International 231, 1518-1534. doi:10.1093/gji/ggac264. Open access.

24. Ghomsi, F.E.K., Pham, L.T., Steffen, R., Ribeiro-Filho, N., Tenzer, R. (2022): Delineating structural features of North Cameroon using EIGEN6C4 high-resolution global gravitational model. Geological Journal 57, 4285-4299. doi:10.1002/gj.4544.

23. Nield, G.A., King, M.A., Steffen, R., Blank, B. (2022): A global, spherical, finite-element model for postseismic deformation using ABAQUS. Geoscientific Model Development 15, 2489-2503. doi:10.5194/gmd-15-2489-2022. Open access.

22. Ghomsi, F.E.K., Tenzer, R., Njinju, E., Steffen, R. (2022): The crustal configuration of the West and Central African Rift System from gravity and seismic data analysis. Geophysical Journal International 230, 995-1012, doi:10.1093/gji/ggac089.

21. Steffen, R., Legrand, J., Ågren, J., Steffen, H., Lidberg, M. (2022): HV-LSC-ex2: Velocity field interpolation using extended least-squares collocation. Journal of Geodesy 96, 15. doi:10.1007/s00190-022-01601-4 . Open access.

20. Steffen, R., Steffen H. (2021): Reactivation of non-optimally orientated faults due to glacially induced stresses. Tectonics 40. doi:10.1029/2021TC006853. Open access.

19. Steffen, R., Wu, P., Lund, B. (2021): Geomechanics of glacially triggered faulting. In: Steffen, H., Olesen, O., Sutinen, R. (eds) Glacially-Triggered Faulting, Cambridge University Press, Cambridge, 20–40, doi:10.1017/9781108779906.004.

18. Gradmann, S., Steffen, R. (2021): Crustal-Scale Stress Modelling to Investigate Glacially Triggered Faulting. In: Steffen, H., Olesen, O., Sutinen, R. (eds) Glacially-Triggered Faulting, Cambridge University Press, Cambridge, 402-416, doi:10.1017/9781108779906.030.

17. Steffen, H., Steffen, R. (2021): Indications on Glacially Triggered Faulting in Polar Areas. In: Steffen, H., Olesen, O., Sutinen, R. (eds) Glacially-Triggered Faulting, Cambridge University Press, Cambridge, 366–380, doi:10.1017/9781108779906.027.

16. Wu, P., Steffen, R., Steffen, H., Lund, B. (2021): Glacial-isostatic adjustment models for earthquake triggering. In: Steffen, H., Olesen, O., Sutinen, R. (eds) Glacially-Triggered Faulting, Cambridge University Press, Cambridge, 383–401, doi:10.1017/9781108779906.029.

15. Abril, C., Tryggvason, A., Gudmundsson, Ó., Steffen, R. (2021): Local Earthquake Tomography in the Tjörnes Fracture Zone (North Iceland) . Journal of Geophysical Research - Solid Earth 126. doi:10.1029/2020JB020212. Open access.

14. Steffen, R., Steffen, H., Weiss, R., Lecavalier, B.S., Milne, G.A., Woodroffe, S.A., Bennike, O. (2020): Early Holocene Greenland-ice mass loss likely triggered earthquakes and tsunami. Earth and Planetary Science Letters 546. doi:10.1016/j.epsl.2020.116443. Open access.

13. Chisenga, C., Van der Meijde, M., Jianguo, Y., Fadel, I., Atekwana E.A., Steffen, R., Ramatoroko, C. (2020): Gravity derived crustal thickness model of Botswana: Its implication for the Mw 6.5 April 3, 2017, Botswana earthquake. Tectonophysics 787, doi:10.1016/j.tecto.2020.228479.

12. Chisenga, C., Jianguo, Y., Zhao, J., Atekwana, E.A., Steffen, R. (2020): Density Structure of the Rümker Region in the Northern Oceanus Procellarum: Implications for Lunar Volcanism and Landing Site Selection for the Chang'E-5 Mission. Journal of Geophysical Research - Planets 125, doi:10.1029/2019JE005978.

11. Steffen, H., Steffen, R., Tarasov, L. (2019): Modelling of glacially-induced stress changes in Latvia, Lithuania and the Kaliningrad District of Russia. Baltica 32, 78-90, doi:10.5200/baltica.2019.1.7. Open access.

10. Pisarska-Jamro˙zy, M., Belzyt, S., Börner, A., Hoffmann, G., Hüneke, H., Kenzler, M., Obst, K., Rother, H., Steffen, H., Steffen, R., Van Loon, A.J. (2019): The sea cliff at Dwasieden: Soft-sediment deformation structures triggered by glacial isostatic adjustment in front of the advancing Scandinavian Ice Sheet. DEUQUA Spec. Pub. 2, 61-67, doi:10.5194/deuquasp-2-61-2019.

9. Steffen, R., Audet, P., Lund, B. (2018): Weakened lithosphere beneath Greenland inferred from effective elastic thickness: A hotspot effect? Geophysical Research Letters 45, 4733-4742, doi:10.1029/2017GL076885.

8. Steffen, R., Strykowski, G., Lund, B. (2017): High-resolution Moho model for Greenland from EIGEN-6C4 gravity data. Tectonophysics, 706-707, 206-220, doi:10.1016/j.tecto.2017.04.014.

7. Steffen, R., Steffen, H., Wu, P., Eaton, D.W. (2015): Reply to comment by Hampel et al. on “Stress and fault parameters affecting fault slip magnitude and activation time during a glacial cycle”. Tectonics, 34, 2359-2366, doi:10.1002/2015TC003992.

6. Brandes, C., Steffen, H., Steffen, R., Wu, P. (2015): Intraplate seismicity in northern Central Europe is induced by the last glaciation. Geology, 43, 611-614, doi:10.1130/G36710.1.

5. Steffen, R., Steffen, H., Wu, P., Eaton, D.W. (2014): Stress and fault parameters affecting fault slip magnitude and activation time during a glacial cycle. Tectonics, 33, 1461-1476, doi:10.1002/2013TC003450.

4. Steffen, R., Wu, P., Steffen, H., Eaton, D.W. (2014): The effect of earth rheology and ice-sheet size on fault-slip and magnitude of postglacial earthquakes. Earth and Planetary Science Letters, 388, 71-80, doi:10.1016/j.epsl.2013.11.058.

3. Steffen, R., Wu, P., Steffen, H., Eaton, D.W. (2014): On the implementation of faults in finite-element glacial isostatic adjustment models. Computers & Geosciences, 62, 150-159, doi:10.1016/j.cageo.2013.06.012.

2. Steffen, R., Eaton, D.W., Wu, P. (2012): Moment tensors, state of stress and their relation to postglacial rebound in northeastern Canada. Geophysical Journal International, 189, 1741-1752, doi:10.1111/j.1365-246X.2012.05452.x.

1. Steffen, R., Steffen, H., Jentzsch, G. (2011). A three-dimensional Moho depth model for the Tien Shan from EGM2008 gravity data. Tectonics, 30, TC5019, doi:10.1029/2011TC002886.

Conference Proceedings

3. Häkli, P., Lidberg, M., Jivall, L., Steffen, H., Kierulf, H.P., Ågren, J., Vestøl, O., Lahtinen, S., Steffen, R., Tarasov, L.: New horizontal intraplate velocity model for Nordic and Baltic countries. - FIG (International Federation of Surveyors) Working Week 2019.

2. Steffen, R., Wu, P., Eaton, D.W., Steffen, H. (2013). Effects of changes in frictional strength and mantle viscosity on the stress behaviour in northeastern Canada. Extended abstract for the Annual Meeting of the Canadian Geophysical Union, Elements, January 2013.

1. Steffen, R., Eaton, D.W., Wu, P. (2011). Application of moment tensor inversion in northeast Canada. Microseismic Industry Consortium Research Report - Volume 1.

Doctoral thesis

Steffen, R. (2013): The influence of glacial isostatic adjustment on intraplate seismicity in northeastern Canada. PhD thesis, University of Calgary, Canada.