Sciences and Exploration Directorate

Gregory S Elsaesser

(RESEARCH SCIENTIST)

 gregory.s.elsaesser@nasa.gov

 212.678.5596

Org Code: 611

NASA/GISS
Mail Code: 611
New York, NY 10025

Employer: TRUSTEES OF COLUMBIA UNIVERSITY

Brief Bio


Gregory Elsaesser's research focuses on the use of observations from multiple satellites (Aqua AIRS, GPM, TRMM) and NASA/DOE field campaigns to improve our understanding of convection and the environment in which it is developing. Knowledge gained is used to improve GISS-ModelE Earth system model (ESM) parameterizations. He maintains a close connection with the satellite observational product development community, currently serving as the NASA Co-Chair for Obs4MIPs, and maintaining the widely-used Multisensor Advanced Climatology of Liquid Water Path (MAC-LWP) record for improved cloud LWP observations in stratocumulus regimes and constraints on total LWP observations in deep convective regions.


Regarding GISS ESM development, Dr. Elsaesser recently advanced representation of convective ice and liquid and detrainment of condensate into stratiform clouds, leading to improvement in global cloud condensate simulation in the GISS Model E3 ESM. He also leads the effort at GISS to use machine learning to automate tuning of the ModelE ESM atmosphere (beginning with Model E3).

Education


(2011) Ph.D. Atmospheric Science, Colorado State University, Fort Collins, Colorado

Dissertation: "Tropical rainfall regimes and their evolution on hourly to daily timescales"; Advisor: C. Kummerow


(2006) M. S. Atmospheric Science, Colorado State University, Fort Collins, Colorado

Thesis: "A parametric optimal estimation retrieval of the non-precipitating parameters over the global oceans"; Advisor: C. Kummerow


(2002) B. S. Atmospheric Science, Ohio State University, Columbus, Ohio

Professional Societies


American Meteorological Society

2003 - Present


American Geophysical Union

2010 - Present

Professional Service


(2023-present) Organizing Committee Member, Analysis of PPEs in Atmospheric Research (APPEAR) Virtual Seminar Series, International Participation (https://sites.google.com/view/appearseminarseries/)


(2020-present) Co-Chair and Steering Committee Member, obs4MIPs (https://pcmdi.github.io/obs4MIPs/)


Service as a Manuscript Reviewer for Atmospheric Chemistry and Physics (ACP), Atmospheric Measurement Techniques (AMT), Bulletin of the American Meteorological Society, Climate Dynamics, Geophysical Research Letters, IEEE Transactions on Geoscience and Remote Sensing, Journal of Advances in Modeling Earth Systems, Journal of Applied Meteorology and Climatology, Journal of Atmospheric and Oceanic Technology, Journal of Atmospheric Sciences, Journal of Climate, Journal of Geophysical Research - Atmospheres, Journal of Hydrometeorology, Journal of the Meteorological Society of Japan, Monthly Weather Review, Nature Communications, Quarterly Journal of the Royal Meteorological Society, and Weather and Forecasting. 


Service as a Proposal Reviewer for DOE, NASA, NOAA, and the National Science Center Poland (NCN)

Awards


(2018) NASA-GISS Best Institute Publication Award of 2017 for  "An Improved Convective Ice Parameterization for the NASA GISS Global Climate Model and Impacts on Cloud Ice Simulation" (1st of 180 publications)


(2017) Quarterly Journal of the Royal Meteorological Society Reviewer Prize

Publications


Refereed

Tornow, F., A. S. Ackerman, A. M. Fridlind, et al. G. Tselioudis, B. Cairns, D. Painemal, and G. Elsaesser. 2023. On the impact of a dry intrusion driving cloud-regime transitions in a midlatitude cold-air outbreak Journal of the Atmospheric Sciences [10.1175/jas-d-23-0040.1]

Naud, C. M., G. S. Elsaesser, and J. F. Booth. 2023. Dominant Cloud Controlling Factors for Low‐Level Cloud Fraction: Subtropical Versus Extratropical Oceans Geophysical Research Letters 50 (19): [10.1029/2023gl104496]

Jiang, X., H. Su, J. H. Jiang, et al. J. D. Neelin, L. Wu, Y. Tsushima, and G. Elsaesser. 2023. Muted extratropical low cloud seasonal cycle is closely linked to underestimated climate sensitivity in models Nature Communications 14 (1): 5586 [10.1038/s41467-023-41360-0]

Naud, C. M., J. E. Martin, P. Ghosh, G. Elsaesser, and D. Posselt. 2023. Automated identification of occluded sectors in midlatitude cyclones: Method and some climatological applications Quarterly Journal of the Royal Meteorological Society 149 (754): 1990-2010 [10.1002/qj.4491]

Schiro, K. A., H. Su, F. Ahmed, et al. N. Dai, C. E. Singer, P. Gentine, G. S. Elsaesser, J. H. Jiang, Y.-S. Choi, and J. David Neelin. 2022. Model spread in tropical low cloud feedback tied to overturning circulation response to warming Nature Communications 13 (1): 7119 [10.1038/s41467-022-34787-4]

Hannah, W., K. Pressel, M. Ovchinnikov, and G. Elsaesser. 2022. Checkerboard patterns in E3SMv2 and E3SM-MMFv2 Geoscientific Model Development 15 (15): 6243-6257 [10.5194/gmd-15-6243-2022]

Ramos, R. D., A. N. LeGrande, M. L. Griffiths, et al. G. S. Elsaesser, D. T. Litchmore, J. E. Tierney, F. S. Pausata, and J. Nusbaumer. 2022. Constraining Clouds and Convective Parameterizations in a Climate Model Using Paleoclimate Data Journal of Advances in Modeling Earth Systems 14 (8): [10.1029/2021ms002893]

Elsaesser, G. S., R. Roca, T. Fiolleau, A. D. Del Genio, and J. Wu. 2022. A Simple Model for Tropical Convective Cloud Shield Area Growth and Decay Rates Informed by Geostationary IR, GPM, and Aqua/AIRS Satellite Data Journal of Geophysical Research: Atmospheres 127 (10): [10.1029/2021jd035599]

McCoy, D. T., P. Field, M. E. Frazer, et al. M. D. Zelinka, G. S. Elsaesser, J. Mülmenstädt, I. Tan, T. A. Myers, and Z. J. Lebo. 2022. Extratropical Shortwave Cloud Feedbacks in the Context of the Global Circulation and Hydrological Cycle Geophysical Research Letters 49 (8): [10.1029/2021gl097154]

Nazarenko, L. S., N. Tausnev, G. L. Russell, et al. D. Rind, R. L. Miller, G. A. Schmidt, S. E. Bauer, M. Kelley, R. Ruedy, A. S. Ackerman, I. Aleinov, M. Bauer, R. Bleck, V. Canuto, G. Cesana, Y. Cheng, T. L. Clune, B. I. Cook, C. A. Cruz, A. D. Genio, G. S. Elsaesser, G. Faluvegi, N. Y. Kiang, D. Kim, A. A. Lacis, A. Leboissetier, A. N. LeGrande, K. K. Lo, J. Marshall, E. E. Matthews, S. McDermid, K. Mezuman, L. T. Murray, V. Oinas, C. Orbe, C. P. García‐Pando, J. P. Perlwitz, M. J. Puma, A. Romanou, D. T. Shindell, S. Sun, K. Tsigaridis, G. Tselioudis, E. Weng, J. Wu, and M. Yao. 2022. Future Climate Change under SSP Emission Scenarios with GISS‐E2.1 Journal of Advances in Modeling Earth Systems [10.1029/2021ms002871]

Russotto, R. D., J. D. Strong, S. J. Camargo, et al. A. Sobel, G. S. Elsaesser, M. Kelley, A. Del Genio, Y. Moon, and D. Kim. 2022. Evolution of Tropical Cyclone Properties Across the Development Cycle of the GISS‐E3 Global Climate Model Journal of Advances in Modeling Earth Systems 14 (1): [10.1029/2021ms002601]

Lin, L., Q. Fu, X. Liu, et al. Y. Shan, S. E. Giangrande, G. S. Elsaesser, K. Yang, and D. Wang. 2021. Improved Convective Ice Microphysics Parameterization in the NCAR CAM Model Journal of Geophysical Research: Atmospheres 126 (9): [10.1029/2020jd034157]

Miller, R. L., G. A. Schmidt, L. Nazarenko, et al. S. E. Bauer, M. Kelley, R. Ruedy, G. L. Russell, A. Ackerman, I. Aleinov, M. Bauer, R. Bleck, V. Canuto, G. Cesana, Y. Cheng, T. L. Clune, B. Cook, C. A. Cruz, A. D. Del Genio, G. S. Elsaesser, G. Faluvegi, N. Y. Kiang, D. Kim, A. A. Lacis, A. Leboissetier, A. N. LeGrande, K. K. Lo, J. Marshall, E. E. Matthews, S. McDermid, K. Mezuman, L. T. Murray, V. Oinas, C. Orbe, C. P. García‐Pando, J. P. Perlwitz, M. J. Puma, D. Rind, A. Romanou, D. T. Shindell, S. Sun, N. Tausnev, K. Tsigaridis, G. Tselioudis, E. Weng, J. Wu, and M. Yao. 2021. CMIP6 Historical Simulations (1850‐2014) with GISS‐E2.1 Journal of Advances in Modeling Earth Systems 13 e2019MS002034 [10.1029/2019ms002034]

McCoy, D. T., P. Field, A. Bodas-Salcedo, G. S. Elsaesser, and M. D. Zelinka. 2020. A Regime-Oriented Approach to Observationally Constraining Extratropical Shortwave Cloud Feedbacks Journal of Climate 33 (23): 9967-9983 [10.1175/jcli-d-19-0987.1]

Schiro, K. A., S. C. Sullivan, Y.-H. Kuo, et al. H. Su, P. Gentine, G. S. Elsaesser, J. H. Jiang, and J. D. Neelin. 2020. Environmental Controls on Tropical Mesoscale Convective System Precipitation Intensity Journal of the Atmospheric Sciences 77 (12): 4233-4249 [10.1175/jas-d-20-0111.1]

Kelley, M., G. A. Schmidt, L. S. Nazarenko, et al. S. E. Bauer, R. Ruedy, G. L. Russell, A. S. Ackerman, I. Aleinov, M. Bauer, R. Bleck, V. Canuto, G. Cesana, Y. Cheng, T. L. Clune, B. I. Cook, C. A. Cruz, A. D. Del Genio, G. S. Elsaesser, G. Faluvegi, N. Y. Kiang, D. Kim, A. A. Lacis, A. Leboissetier, A. N. LeGrande, K. K. Lo, J. Marshall, E. E. Matthews, S. McDermid, K. Mezuman, R. L. Miller, L. T. Murray, V. Oinas, C. Orbe, C. P. García‐Pando, J. P. Perlwitz, M. J. Puma, D. Rind, A. Romanou, D. T. Shindell, S. Sun, N. Tausnev, K. Tsigaridis, G. Tselioudis, E. Weng, J. Wu, and M. Yao. 2020. GISS‐E2.1: Configurations and Climatology Journal of Advances in Modeling Earth Systems 12 (8): [10.1029/2019ms002025]

Cheng, Y., V. M. Canuto, A. M. Howard, et al. A. S. Ackerman, M. Kelley, A. M. Fridlind, G. A. Schmidt, M. S. Yao, A. Del Genio, and G. S. Elsaesser. 2020. A Second-Order Closure Turbulence Model: New Heat Flux Equations and No Critical Richardson Number Journal of the Atmospheric Sciences 77 (8): 2743-2759 [10.1175/jas-d-19-0240.1]

Cesana, G., A. D. Del Genio, A. S. Ackerman, et al. M. Kelley, G. Elsaesser, A. M. Fridlind, Y. Cheng, and M.-S. Yao. 2019. Evaluating models' response of tropical low clouds to SST forcings using CALIPSO observations Atmospheric Chemistry and Physics 19 (5): 2813-2832 [10.5194/acp-19-2813-2019]

Schmidt, G. A., D. Bader, L. J. Donner, et al. G. S. Elsaesser, J.-C. Golaz, C. Hannay, A. Molod, R. B. Neale, and S. Saha. 2017. Practice and philosophy of climate model tuning across six US modeling centers Geoscientific Model Development 10 (9): 3207-3223 [10.5194/gmd-10-3207-2017]

Elsaesser, G. S., A. D. Del Genio, J. H. Jiang, and M. van Lier-Walqui. 2017. An Improved Convective Ice Parameterization for the NASA GISS Global Climate Model and Impacts on Cloud Ice Simulation Journal of Climate 30 (1): 317-336 [10.1175/jcli-d-16-0346.1]

Hannah, W. M., B. E. Mapes, and G. S. Elsaesser. 2016. A Lagrangian View of Moisture Dynamics During DYNAMO Journal of the Atmospheric Sciences 73 (5): 1967-1985 [10.1175/jas-d-15-0243.1]

Elsaesser, G. S., and C. D. Kummerow. 2015. The Sensitivity of Rainfall Estimation to Error Assumptions in a Bayesian Passive Microwave Retrieval Algorithm Journal of Applied Meteorology and Climatology 54 (2): 408-422 [10.1175/jamc-d-14-0105.1]

Duncan, D. I., C. D. Kummerow, and G. S. Elsaesser. 2014. A Lagrangian Analysis of Deep Convective Systems and Their Local Environmental Effects J. Climate 27 (5): 2072-2086 [10.1175/jcli-d-13-00285.1]

Elsaesser, G. S., and C. D. Kummerow. 2013. A Multisensor Observational Depiction of the Transition from Light to Heavy Rainfall on Subdaily Time Scales Journal of the Atmospheric Sciences 70 (7): 2309-2324 [10.1175/jas-d-12-0210.1]

Wang, F., C. Kummerow, A. J. Geer, P. Bauer, and G. Elsaesser. 2012. Comparing rain retrievals from GPROF with ECMWF 1D-Var products Q.J.R. Meteorol. Soc. 138 (668): 1852-1866 [10.1002/qj.1931]

Munchak, S., C. Kummerow, and G. Elsaesser. 2012. Relationships between the Raindrop Size Distribution and Properties of the Environment and Clouds Inferred from TRMM J. Climate 25 (8): 2963-2978 [10.1175/JCLI-D-11-00274.1]

Elsaesser, G. S., C. D. Kummerow, T. S. L’Ecuyer, Y. N. Takayabu, and S. Shige. 2010. Observed Self-Similarity of Precipitation Regimes over the Tropical Oceans J. Climate 23 (10): 2686-2698 [10.1175/2010jcli3330.1]

Rapp, A. D., G. Elsaesser, and C. Kummerow. 2009. A Combined Multisensor Optimal Estimation Retrieval Algorithm for Oceanic Warm Rain Clouds Journal of Applied Meteorology and Climatology 48 (11): 2242-2256 [10.1175/2009jamc2156.1]

Elsaesser, G. S., and C. D. Kummerow. 2008. Toward a Fully Parametric Retrieval of the Nonraining Parameters over the Global Oceans Journal of Applied Meteorology and Climatology 47 (6): 1599-1618 [10.1175/2007jamc1712.1]