Presentations

2023

• Meyers,T.P.,  Krishnan, P., Heuer, M., Kochendorfer,J. , The Impact of Wildfire on the Land Surface Characteristics of a Semi-Arid Grassland ,The iLEAPS – OzFlux Joint Conference 2023,31 January - 3 February 2023, Auckland, New Zealand

2022

• Krishnan,P., Gallo, P, Quantifying the bias in the use of clear-sky compared with all-sky observations of monthly and annual daytime Land Surface Temperature over two United States Climate Reference Network (USCRN) sites, AGU Fall meeting, Chicago, IL, 2022.

2021

• Natasha MacBean, Mallory Barnes, Russell L Scott, Joel Biederman, Matthew Roby, Praveena Krishnan, Thomas Kolb and Marcy E Litvak (2020), Exploring the role of peak CO2 fluxes versus growing season length in controlling semiarid ecosystem net CO2 flux interannual variability (B21B-02 ) AGU Fall Meeting, 12-17 Dec,2021 

2020

•  Mahmud,K.,  Biederman,J.A., Scott,R.L.,  Litvak, M., Kolb, T., Meyers, T.P.,  Krishnan, P., Bastrikov, V., N. MacBean (2020), Photosynthesis and Phenology Parameter Optimization Alleviates Terrestrial Biosphere Model Underestimate of Net CO2 Flux Interannual Variability at Semiarid Sites (GC072 ) AGU Fall Meeting, 7-11 Dec,2020 

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2019

• Krishnan,P.,  Kochendorfer,J., T. P. Meyers and M. Heuer, Long-term observations of energy, water vapor and CO2 fluxes over a temperate deciduous forest in Tennessee, AGU Fall meeting 2019,9–13 December, 2019, San Francisco, CA

•  Krishnan,P., Response of energy, water and CO2 fluxes to vegetation during Land atmospheric feedback experiment, international conference on "Fluxes of Greenhouse Gases and Energy Across Ecosystems –Five Decades to State-of-the-art of Measurements and Modelling" held at the University of British Columbia, Vancouver, Canada, from 20 to 22 August 2019.

2018 

• Krishnan,P., T.Lee M. Buban, E. J. Dumas, T. P. Meyers, B. Baker and S. Brooks, Airborne Hyperspectral Imaging to Estimate Vegetation Indices During the Land - Atmosphere Feedback Experiment (A004: Advances in Optical Remote Sensing of the Atmosphere and Surface), AGU Fall meeting 2018,10–14 December, 2018, Washington, DC

• Steve Brooks, B. B. Baker, T. R. Lee, M. Buban, E. J. Dumas Jr., P. Krishnan, K. N. Ellis, and D. Burow, Airborne Thermal and Hyperspectral Imaging to Estimate Sensible and Latent Heat Fluxes during the Land Atmosphere Feedback Experiment (LAFE), 23rd Symposium on Boundary Layers and Turbulence/21st Conference on Air-Sea Interaction, AMS Meeting,11-15 June 2018, Oklahoma City, OK  [https://ams.confex.com/ams/23BLT21ASI/meetingapp.cgi/Paper/346230]

2017

• Krishnan,P., T. P. Meyers and M. Heuer, Variability of soil CO2 efflux in a semi-arid grassland in Arizona (B51G. Past, Present, and Future of Dryland Ecosystems: Local Trends to Global Impacts II), AGU Fall meeting 2017,11–15 December, 2017, New Orleans, LA

2016

• Ronald J. Dobosy, P. Krishnan, E. J. Dumas Jr., D. S. Sayres, and C. E. Healy,Sources and Estimates of Uncertainty in Fluxes from Aircraft, 96th American Meteorological Society Annual Meeting 10–14 January, 2016 New Orleans, LA Ernest N. Morial Convention Center

2015

• Krishnan, P., T. P. Meyers and M. Heuer, Post-Fire Evapotranspiration and Net Ecosystem Exchange over A Semi-Arid Grassland in Arizona ( B33C: Biosphere-Atmosphere Greenhouse Gas Fluxes in Terrestrial Ecosystems,December 16, 2015),AGU Fall Meeting 2015

• Joel Biederman, Russell Scott, Marcy Litvak, Walter Oechel, Thomas Kolb, Michael Goulden, Enrico Yepez, Guillermo Ponce-Campos, Shirley Papuga, Greg Maurer, Dan Krofcheck, Sabina Dore, Tilden Meyers, Praveena Krishnan, Dave Bowling, Ecosystem carbon balance in a drier future: land-atmosphere exchanges of CO2, water and energy across semiarid southwestern North America (B13F-0670:Terrestrial Biome Fluxes and Biogeochemical Impacts of Forest Disturbances: Measurements and Modeling from Minutes to Millennia, December 14, 2015), AGU Fall meeting 2015 

• Min Huang, P. Lee , R. McNider, K. Doty, Y. Wu ,J. Crawford , E. Buzay , P. Krishnan, Evaluate WRF and satellite land surface temperature during DISCOVER-AQ Houston field experiment,NASA Air Quality Applied Sciences Team (AQAST) 9th Semiannual Meeting  Saint Louis University June 2-4, 2015.

2014

• Inter-Comparison Of In-Situ Sensors For Land Surface Temperature Measurements, Praveena Krishnan; John Kochendorfer; Tilden P. Meyers; Pierre Guillevic; Devon Simmons J Hook (GC51D: Taking the Temperature of the Earth: Challenges and Applications Across All Earth Surface Domains , December 19, 2014),AGU Fall Meeting 2014

2013:

• Comparison of in-situ, aircraft, and satellite based land surface temperature measurements over a mixed agricultural region, Praveena Krishnan; Bruce Baker; John Kochendorfer; Edward Dumas; Tilden P. Meyers; Pierre Guillevic; Stephan Corda; John Muratore; Devon Simmons (GC41A. Taking the Temperature of the Earth: Challenges and Applications Across All Earth Surface Domains, December 12, 2013),AGU Fall Meeting 2013

2012:

• Characterization of the Spatial Variability of Land Surface Temperature Around NOAA CRN Sites Using Airborne and Satellite Measurements, Praveena Krishnan, John Kochendorfer, B. B. Baker, E. J. Dumas Jr., T. P. Meyers, P. C. Guillevic, S. Corda, J. F. Muratore, and B. Martos,92nd American Meteorological Society Annual Meeting (January 22-26, 2012)

2011:

• Comparison of land surface temperature measurements at NOAA CRN sites with airborne and satellite observations, Praveena Krishnan; John Kochendorfer; Bruce Baker; Edward Dumas; Tilden P. Meyers; Pierre Guillevic; Stephan Corda; John Muratore; Borja Martos (B34B. Ecological, Hydrological, and Biogeochemical Applications of Remotely Sensed Land Surface Temperature I, December 7, 2011),AGU Fall Meeting 2011

• Eight Years of Forest-Floor Carbon Dioxide Exchange in a Boreal Black Spruce Forest: Spatial Integration and Multi-temporal Trends, David Gaumont-guay; Andy Black; Timothy Griffis; Alan G. Barr; Nick Grant; Praveena Krishnan; Zoran Nesic (B31L-06-Interacting Biogeochemical Cycles: Linking Carbon, Water, and Nutrient Fluxes From Organisms to Globe I, December 7, 2011),AGU Fall Meeting 2011

• Interannual variability in energy exchange and evapotranspiration over two semi-arid grasslands in Arizona, Tilden P. Meyers; Praveena Krishnan; Russell L. Scott; Linda Kennedy; Mark Heuer (B41A-0204-B41A. Effects of Water Limitations on Water and Carbon Cycling of Terrestrial Ecosystems II Posters, December 8, 2011),AGU Fall Meeting 2011

• Pierre C. Guillevic, P. Krishnan, J. F. Muratore, J. Kochendorfer, B. Martos, E. J. Dumas Jr., B.Coudert, J. L. Privette, T. P. Meyers, S. Corda, and C. B. Baker; Development of a methodology to utilize land surface temperature satellite data for climate studies, 19th Conference on Applied Climatology, 18-20 July, 2011 in Asheville, NC.

2008:

• Krishnan, P.; Meyers, T. P.; Heuer, M. M., Changes in the energy, water vapour and CO2 fluxes over a semi-arid grassland after fire disturbance, American Geophysical Union, Fall Meeting, 15-19 December, 2008, San Francisco, CA, USA.

• Krishnan, P., T. P. Meyers and M. Heuer, Energy, water and CO2 fluxes over a semi-arid grassland associated with North American monsoon, 28th Conference on Agricultural and Forest Meteorology, Orlando, FL, USA, 28 April – 2 May, 2008

• Jassal, R.S., Black, T.A, Chen, B., Nesic, Z., Krishnan, P., Spittlehouse, D.,Water use efficiency in west coast Douglas-fir: Effects of seasonal and interannual climate variability, stand age and nitrogen fertilization, Northwest Forest Soils Council 2008 Winter Workshop on “Douglas-fir Soil-Plant Water Relationships: Tree and Landscape Scales”, January 29, 2008, Western Washington University, Bellingham, WA.

2007

• Krishnan, P., Black, T. A., Barr, A. G., Grant, N. J., Gaumont-Guay, D., and Z. Nesic. Factors Controlling the Interannual Variability in the Carbon Balance of a Southern Boreal Black Spruce Forest, Fluxnet-Canada Research Network (FCRN) Annual General Meeting, Ottawa, March 9-11, 2007

• Barr, A.G., Black, T.A., McCaughey, J.H., Amiro, B., Hogg, T., Nesic, Z., Krishnan, P., Progress and Prospects at the Boreal Ecosystem Research and Monitoring Sites, Joint Canada-Mexico-USA Carbon Program Planning Meeting, January 25-26, 2007, Colorado, USA.

• Krishnan, P., Black, T.A., Jassal, R. S., Chen, B., and Z. Nesic Interannual Variation in Net Ecosystem Productivity of Three Pacific Northwest Douglas-fir Stands Fluxnet-Canada Research Network (FCRN) Annual General Meeting, March 9-11, 2007, Ottawa.

• Nesic, Z., Chen, B., Black, T.A., Morgenstern, K., and P. Krishnan, Cross-Site Evaluation of Fluxnet-Canada Eddy Covariance Systems, Fluxnet-Canada Research Network (FCRN) Annual General Meeting, March 9-11, 2007, Ottawa.

2006

• Krishnan, P., T .Andrew. Black, N. J.Grant, Alan. G. Barr, E. (Ted) H. Hogg, E. (Ted) H. Hogg, Kai Morgenstern, Net ecosystem productivity of a boreal aspen forest during and following drought, 27th Conference on Agriculture and Forest Meteorology San Diego, CA, USA, May 22-25, 2006.

• Kunhikrishnan, P. K., Krishnan, P., Atmospheric boundary layer features over a tropical inland station during different seasons using UHF wind Profiler, 36th COSPAR Scientific Assembly Beijing, China, 16 – 23 July 2006

• Kunhikrishnan, P. K., Krishnan, P., Intraseasonal oscillations in the tropical boundary layer and its implications to monsoon variability, 36th COSPAR Scientific Assembly Beijing, China, 16 – 23 July 2006

• Kunhikrishnan, P. K., Krishnan, P., Simulations of the atmospheric boundary layer parameters using one dimensional PBL model and its comparison with observations, 36th COSPAR Scientific Assembly Beijing, China, 16 – 23 July 2006

• Krishnan, P., Black, T.A., Grant, N.J., Barr, A.G., Hogg, E.H., Jassal, R.S., Morgenstern, K. Drought effects on Ecosystem CO2 and water vapour exchange in a boreal aspen forest, Fluxnet-Canada Research Network (FCRN) Annual General Meeting, Victoria, B.C. Feb. 2006

• Krishnan, P., Grant, N.J., Black, T.A., Barr, A.G., Morgenstern, K., Interannual variation in net ecosystem productivity of a boreal black spruce forest, Fluxnet-Canada Research Network (FCRN) Annual General Meeting, Victoria, B.C. Feb. 2006.

2005

• Krishnan, P., Black, T.A., Morgenstern, K., Neziz, Z., Barr, A.G., McCaughey, H., 2005. Eddy fluxes of sensible heat, water vapour and CO2 at SOA, SOBS and HJP75 in 2004. BERMS 2005 Workshop, 24 Feb. 2005, Quebec, QC

• Krishnan, P., Black, T.A., Morgenstern, K., Nesic, Z., Barr, A.G., 2005. CO2 exchange at the BERMS Southern Old Aspen site following drought: Old Aspen site following drought: comparison with long-term observations. FCRN Annual Meeting, 25-27 Feb. 2005, Quebec, QC.

Selected presentations before 2005

• Praveena Krishnan, P.K. Kunhikrishnan, Sudha Ravindran, D. Balasubrahamanyam, K. Sen Gupta and Radhika Ramachandran, A case study of surface boundary layer parameters over an Island station during monsoon period, National Symposium on Tropical Meteorology (TROPMET-2000), CUSAT, Kochi, February 1-4, 2000.

•  Sudha Ravindran, P.K.Kunhikrishnan, D.Bala Subrahamanyam, Praveena Krishnan, Radhika Ramachandran, M.V. Ramana and S.K. Pandey, A comparative study of coastal and inland boundary layer during S-W monsoon period, National Symposium on Tropical Meteorology (TROPMET-2000), CUSAT, Kochi, February 1-4, 2000

• Praveena Krishnan, P.K. Kunhikrishnan, Sudha Ravindran, D. Balasubrahamanyam, Turbulent characteristics of atmospheric surface layer over a coastal station, NSSS, March 1-4, 2000, Puri.

•  Kunhikrishnan, P.K., Praveena Krishnan, Sudha Ravindran, Radhika Ramachandran, D. Balasubrahamanyam, M. Venkata Ramana and K. Sen Gupta, Response of surface boundary layer in semi arid region during the total solar eclipse of August 11, 1999, NSSS, March 1-4, 2000, Puri.

• Kunhikrishnan, P.K., S. Muraleedharan Nair, Sudha Ravindran and Praveena Krishnan, Planetary boundary layer structure over Gadanki using LAWP, NSSS, March 1-4, 2000, Puri

• Balasubrahamanyam, D., P.K. Kunhikrishnan, Radhika Ramachandran, Sudha Ravindran, M.V. Ramana, Praveena Krishnan, S.K. Pandey and C.D. Sharma, Study of boundary layer parameters at Lucknow during northeast monsoon and southwest monsoon, NSSS, March 1-4, 2000, Puri

• Sudha Ravindran, P.K. Kunhikrishnan, Praveena Krishnan and S. Muraleedharan Nair, Observation on atmospheric boundary layer structure over a tropical inland station during Premonsoon period using wind profiler, TROPMET-2001, Mumbai .

• Kunhikrishnan, P. K., Praveena Krishnan, Muraleedharan Nair, S., and Sudha Ravindran, Atmospheric Boundary layer studies using LAWP, Proc. of the fifth user scientist workshop-2001, NMRF, Gadanki,

• Praveena Krishnan, M. V. Ramana and P.K. Kunhikrishnan, Surface layer similarity relations of wind, temperature and humidity over two tropical stations, NSSS-2002, Bhopal

• Praveena Krishnan, P.K.Kunhikrishnan and Sudha Ravindran, Convective boundary layer height and evolution Over Gadanki, NSSS-2002, Bhopal

• Kunhikrishnan, P.K., M. S. Jagadeesh Kumar, Praveena Krishnan, Sudha Ravindran, S. Muraleedharan Nair and Kusuma. G. Rao, Atmospheric boundary layer wind structure during southwest monsoon period using lower atmospheric wind profiler data, NSSS-2002, Bhopal

• Kunhikrishnan, P.K., Praveena Krishnan, S. Muraleedharan Nair and Sudha Ravindran, Atmospheric boundary layer wind and turbulence structure using lower atmospheric wind profiler at Gadanki, NSSS-2002, Bhopal

• Ramana, M.V, P. K. Kunhikrishnan, G.S.Bhatt and Praveena Krishnan, Marine surface boundary layer fluxes and turbulence structure over bay of Bengal during BOBMEX-pilot, NSSS-2002, Bhopal