Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder

Jennifer Kay

Research Interests

Dr. Jen Kay is an Associate Professor in the Department of Atmospheric and Oceanic Sciences and a Fellow of CIRES at the University of Colorado at Boulder. Dr. Kay remains a visiting scientist at the National Center for Atmospheric Research, where she worked prior to joining CU Boulder. Dr. Kay works at the nexus of observations and models to understand climate change and variability.  Dr. Kay’s research focuses on understanding the influence of radiation, clouds, precipitation, and sea ice processes on the globally coupled climate system.

Current Research

Process-based understanding of climate physics and dynamics

We have a number of active projects that combine models and observations to improve understanding of the processes controlling climate change and variability. For example, we are comparing the influence of forcing and feedbacks on idealized global warming and global cooling experiments with funding from my NSF CAREER award. We are also a part of a $35 million NASA Earth Ventures mission called Polar Radiant Energy in the Far Infrared Experiment (PREFIRE). In this 2018-2023 project, we will launch two small CubeSat satellites to make measurements Arctic radiation at far-infrared wavelengths and improve understanding of Arctic energy budgets. With funding from the NASA CloudSat and CALIPSO science team, we assessing the observability of and the mechanisms underlying hydrologic cycle changes with global warming.  We are particularly interested in mid- and high-latitude clouds and precipitation changes with warming including coupled interactions with the ocean and cryosphere.  Using single model large initial conditions ensembles, we are examining the influence of multi-decadal Pacific climate variability on climate teleconnections to the mid-latitudes.  Illustrative of our broad research interests, we also research science communication strategies including quantifying engagement in climate change science education and outreach.



Figure shows the future of snow, i.e., 21st century change in 94 GHz spaceborne radar snow occurrence frequency in a global coupled climate model (Community Earth System Model). Figure from Kay et al. 2018 JGR Atmospheres.

Honors and Awards

  • American Geophysical Union Turco Lectureship, 2018
  • Provost Faculty Achievement Award, 2018
  • American Meteorological Society Henry G. Houghton Award, 2017
  • NSF CAREER Award, 2016
  • CESM Distinguished Achievement Award, 2016

View Publications

  • Muelmenstaedt J; Salzmann M; Kay JE; Zelinka MD; Ma P-L; Nam C; Kretzschmar J; Hoernig S; Quaas J. (Jun 2021). An underestimated negative cloud feedback from cloud lifetime changes. Nature Climate Change , 11(6), 508-+. 10.1038/s41558-021-01038-1
  • Huang Y; Dong X; Kay JE; Xi B; McIlhattan EA. (Jan 2021). The climate response to increased cloud liquid water over the Arctic in CESM1: a sensitivity study of Wegener-Bergeron-Findeisen process. Climate Dynamics , 56(9-10), 3373-3394. 10.1007/s00382-021-05648-5
  • McIlhattan EA; Kay JE; L'Ecuyer TS. (Nov 2020). Arctic Clouds and Precipitation in the Community Earth System Model Version 2. Journal of Geophysical Research: Atmospheres , 125(22). 10.1029/2020JD032521
  • Middlemas EA; Kay JE; Medeiros BM; Maroon EA. (Aug 2020). Quantifying the Influence of Cloud Radiative Feedbacks on Arctic Surface Warming Using Cloud Locking in an Earth System Model. Geophysical Research Letters , 47(15). 10.1029/2020GL089207
  • DuVivier AK; Holland MM; Kay JE; Tilmes S; Gettelman A; Bailey DA. (Aug 2020). Arctic and Antarctic Sea Ice Mean State in the Community Earth System Model Version 2 and the Influence of Atmospheric Chemistry. Journal of Geophysical Research: Oceans , 125(8). 10.1029/2019JC015934
  • Lenaerts JTM; Camron MD; Wyburn-Powell CR; Kay JE. (Jul 2020). Present-day and future Greenland Ice Sheet precipitation frequency from CloudSat observations and the Community Earth System Model. The Cryosphere , 14(7), 2253-2265. 10.5194/tc-14-2253-2020
  • Molnar PK; Bitz CM; Holland MM; Kay JE; Penk SR; Amstrup SC. (Jul 2020). Fasting season length sets temporal limits for global polar bear persistence. Nature Climate Change , 10(8), 732-+. 10.1038/s41558-020-0818-9
  • Schneider DP; Kay JE; Lenaerts J. (Jul 2020). Improved clouds over Southern Ocean amplify Antarctic precipitation response to ozone depletion in an earth system model. Climate Dynamics , 55(5-6), 1665-1684. 10.1007/s00382-020-05346-8
  • Deser C; Lehner F; Rodgers KB; Ault T; Delworth TL; DiNezio PN; Fiore A; Frankignoul C; Fyfe JC; Horton DE. (Jun 2020). Insights from Earth system model initial-condition large ensembles and future prospects (vol 89, pg 516, 2020). Nature Climate Change , 10(8), 791-791. 10.1038/s41558-020-0854-5
  • DuVivier AK; DeRepentigny P; Holland MM; Webster M; Kay JE; Perovich D. (Apr 2020). Going with the floe: tracking CESM Large Ensemble sea ice in the Arctic provides context for ship-based observations. The Cryosphere , 14(4), 1259-1271. 10.5194/tc-14-1259-2020
  • Deser C; Lehner F; Rodgers KB; Ault T; Delworth TL; DiNezio PN; Fiore A; Frankignoul C; Fyfe JC; Horton DE. (Mar 2020). Insights from Earth system model initial-condition large ensembles and future prospects. Nature Climate Change , 10(4), 277-+. 10.1038/s41558-020-0731-2
  • Morrison AL; Rozak S; Gold AU; Kay JE. (Mar 2020). Quantifying student engagement in learning about climate change using galvanic hand sensors in a controlled educational setting. Climatic Change: an interdisciplinary, international journal devoted to the description, causes and implications of climatic change , 159(1), 17-36. 10.1007/s10584-019-02576-6
  • Kay JE. (Feb 2020). Early models successfully predicted global warming. Nature , 578(7793), 45-45. 10.1038/d41586-020-00243-w
  • Danabasoglu G; Lamarque J-F; Bacmeister J; Bailey DA; DuVivier AK; Edwards J; Emmons LK; Fasullo J; Garcia R; Gettelman A. (Feb 2020). The Community Earth System Model Version 2 (CESM2). Journal of Advances in Modeling Earth Systems , 12(2). 10.1029/2019MS001916
  • Kay JE. (Feb 2020). Early climate models successfully predicted global warming. Nature , 578(7793), 45-46. 10.1038/d41586-020-00243-w
  • Huang, YY; Dong, XQ; Bailey, DA; Holland, MM; Xi, BK; DuVivier, AK; Kay, JE; Landrum, LL; Deng, Y. (28-Jun 2019). Thicker Clouds and Accelerated Arctic Sea Ice Decline: The Atmosphere-Sea Ice Interactions in Spring. GEOPHYSICAL RESEARCH LETTERS, 46(12), 6980-6989. 10.1029/2019GL082791
  • Takahashi, H; Lebsock, MD; Richardson, M; Marchand, R; Kay, JE. (16-Jul 2019). When Will Spaceborne Cloud Radar Detect Upward Shifts in Cloud Heights?. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 124(13), 7270-7285. 10.1029/2018JD030242
  • Morrison, AL; Kay, JE; Frey, WR; Chepfer, H; Guzman, R. (27-Jan 2019). Cloud Response to Arctic Sea Ice Loss and Implications for Future Feedback in the CESM1 Climate Model. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 124(2), 1003-1020. 10.1029/2018JD029142
  • Maroon, EA, JE Kay and KB Karnauskas. (NOV 2018). Influence of the Atlantic Meridional Overturning Circulation on the Northern Hemisphere Surface Temperature Response to Radiative Forcing. JOURNAL OF CLIMATE, 31(22), 9207-9224. 10.1175/JCLI-D-17-0900.1
  • Miller, NB, MD Shupe, JTM Lenaerts, JE Kay, G de Boer and R Bennartz. (MAY 2018). Process-Based Model Evaluation Using Surface Energy Budget Observations in Central Greenland. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 123(10), 4777-4796. 10.1029/2017JD027377
  • Frey, WR, AL Morrison, JE Kay, R Guzman and H Chepfer. (16-May 2018). The Combined Influence of Observed Southern Ocean Clouds and Sea Ice on Top-of-Atmosphere Albedo. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 123(9), 4461-4475. 10.1029/2018JD028505
  • Kay, JE, T LEcuyer, A Pendergrass, H Chepfer, R Guzman and V Yettella. (27-Apr 2018). Scale-Aware and Definition-Aware Evaluation of Modeled Near-Surface Precipitation Frequency Using CloudSat Observations. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 123(8), 4294-4309. 10.1002/2017JD028213
  • Goosse, H, JE Kay, KC Armour, A Bodas-Salcedo, H Chepfer, D Docquier, A Jonko, PJ Kushner, O Lecomte, F Massonnet, HS Park, F Pithan, G Svensson and M Vancoppenolle. (15-May 2018). Quantifying climate feedbacks in polar regions. NATURE COMMUNICATIONS, 9. 10.1038/s41467-018-04173-0
  • Lacour, A, H Chepfer, NB Miller, MD Shupe, V Noel, X Fettweis, H Gallee, JE Kay, R Guzman and J Cole. (NOV 2018). How Well Are Clouds Simulated over Greenland in Climate Models? Consequences for the Surface Cloud Radiative Effect over the Ice Sheet. JOURNAL OF CLIMATE, 31(22), 9293-9312. 10.1175/JCLI-D-18-0023.1
  • Yettella, V, JB Weiss, JE Kay and AG Pendergrass. (MAY 2018). An Ensemble Covariance Framework for Quantifying Forced Climate Variability and Its Time of Emergence. JOURNAL OF CLIMATE, 31(10), 4117-4133. 10.1175/JCLI-D-17-0719.1
  • Frey, WR and JE Kay. (APR 2018). The influence of extratropical cloud phase and amount feedbacks on climate sensitivity. CLIMATE DYNAMICS, 50(8-Jul), 3097-3116. 10.1007/s00382-017-3796-5
  • Morrison, AL, JE Kay, H Chepfer, R Guzman and V Yettella. (16-Jan 2018). Isolating the Liquid Cloud Response to Recent Arctic Sea Ice Variability Using Spaceborne Lidar Observations. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 123(1), 473-490. 10.1002/2017JD027248
  • Webb, MJ, T Andrews, A Bodas-Salcedo, S Bony, CS Bretherton, R Chadwick, H Chepfer, H Douville, P Good, JE Kay, SA Klein, R Marchand, B Medeiros, AP Siebesma, CB Skinner, B Stevens, G Tselioudis, Y Tsushima and M Watanabe. (25-Jan 2017). The Cloud Feedback Model Intercomparison Project (CFMIP) contribution to CMIP6. GEOSCIENTIFIC MODEL DEVELOPMENT, 10(1), 359-384. 10.5194/gmd-10-359-2017
  • Frey, WR, EA Maroon, AG Pendergrass and JE Kay. (28-Dec 2017). Do Southern Ocean Cloud Feedbacks Matter for 21st Century Warming?. GEOPHYSICAL RESEARCH LETTERS, 44(24), 12447-12456. 10.1002/2017GL076339
  • Yettella, V and JE Kay. (SEP 2017). How will precipitation change in extratropical cyclones as the planet warms? Insights from a large initial condition climate model ensemble. CLIMATE DYNAMICS, 49(6-May), 1765-1781. 10.1007/s00382-016-3410-2
  • Lacour, A, H Chepfer, MD Shupe, NB Miller, V Noel, J Kay, DD Turner and R Guzman. (AUG 2017). Greenland Clouds Observed in CALIPSO-GOCCP: Comparison with Ground-Based Summit Observations. JOURNAL OF CLIMATE, 30(15), 6065-6083. 10.1175/JCLI-D-16-0552.1
  • Guzman, R, H Chepfer, V Noel, TV de Guelis, JE Kay, P Raberanto, G Cesana, MA Vaughan and DM Winker. (27-Jan 2017). Direct atmosphere opacity observations from CALIPSO provide new constraints on cloud-radiation interactions. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 122(2), 1066-1085. 10.1002/2016JD025946
  • Palerme, C, C Genthon, C Claud, JE Kay, NB Wood and T LEcuyer. (JAN 2017). Evaluation of current and projected Antarctic precipitation in CMIP5 models. CLIMATE DYNAMICS, 48(2-Jan), 225-239. 10.1007/s00382-016-3071-1
  • Baker, AH, DM Hammerling, SA Mickelson, HY Xu, MB Stolpe, P Naveau, B Sanderson, I Ebert-Uphoff, S Samarasinghe, F De Simone, F Carbone, CN Gencarelli, JM Dennis, JE Kay and P Lindstrom. (7-Dec 2016). Evaluating lossy data compression on climate simulation data within a large ensemble. GEOSCIENTIFIC MODEL DEVELOPMENT, 9(12), 4381-4403. 10.5194/gmd-9-4381-2016
  • Favier, V, D Verfaillie, E Berthier, M Menegoz, V Jomelli, JE Kay, L Ducret, Y Malbeteau, D Brunstein, H Gallee, YH Park and V Rinterknecht. (1-Sep 2016). Atmospheric drying as the main driver of dramatic glacier wastage in the southern Indian Ocean. SCIENTIFIC REPORTS, 6. 10.1038/srep32396
  • Jahn, A, JE Kay, MM Holland and DM Hall. (SEP 2016). How predictable is the timing of a summer ice-free Arctic?. GEOPHYSICAL RESEARCH LETTERS, 43(17), 9113-9120. 10.1002/2016GL070067
  • Kay, JE, L Bourdages, NB Miller, A Morrison, V Yettella, H Chepfer and B Eaton. (27-Apr 2016). Evaluating and improving cloud phase in the Community Atmosphere Model version 5 using spaceborne lidar observations. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 121(8), 4162-4176. 10.1002/2015JD024699
  • Kay, JE, C Wall, V Yettella, B Medeiros, C Hannay, P Caldwell and C Bitz. (JUN 2016). Global Climate Impacts of Fixing the Southern Ocean Shortwave Radiation Bias in the Community Earth System Model (CESM). JOURNAL OF CLIMATE, 29(12), 4617-4636. 10.1175/JCLI-D-15-0358.1
  • Barnhart, KR, CR Miller, I Overeem and JE Kay. (MAR 2016). Mapping the future expansion of Arctic open water. NATURE CLIMATE CHANGE, 6(3), 280-285. 10.1038/NCLIMATE2848
  • Matus, AV, TS LEcuyer, JE Kay, C Hannay and JF Lamarque. (APR 2015). The Role of Clouds in Modulating Global Aerosol Direct Radiative Effects in Spaceborne Active Observations and the Community Earth System Model. JOURNAL OF CLIMATE, 28(8), 2986-3003. 10.1175/JCLI-D-14-00426.1
  • Kay, JE, C Deser, A Phillips, A Mai, C Hannay, G Strand, JM Arblaster, SC Bates, G Danabasoglu, J Edwards, M Holland, P Kushner, JF Lamarque, D Lawrence, K Lindsay, A Middleton, E Munoz, R Neale, K Oleson, L Polvani and M Vertenstein. (AUG 2015). THE COMMUNITY EARTH SYSTEM MODEL (CESM) LARGE ENSEMBLE PROJECT A Community Resource for Studying Climate Change in the Presence of Internal Climate Variability. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 96(8), 1333-1349. 10.1175/BAMS-D-13-00255.1
  • Palerme, C, JE Kay, C Genthon, T LEcuyer, NB Wood and C Claud. (2014). How much snow falls on the Antarctic ice sheet?. CRYOSPHERE, 8(4), 1577-1587. 10.5194/tc-8-1577-2014
  • Tilmes, S, A Jahn, JE Kay, M Holland and JF Lamarque. (16-Feb 2014). Can regional climate engineering save the summer Arctic sea ice?. GEOPHYSICAL RESEARCH LETTERS, 41(3), 880-885. 10.1002/2013GL058731
  • Perket, J, MG Flanner and JE Kay. (16-Feb 2014). Diagnosing shortwave cryosphere radiative effect and its 21st century evolution in CESM. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 119(3), 1356-1362. 10.1002/2013JD021139
  • Kay, JE, B Medeiros, YT Hwang, A Gettelman, J Perket and MG Flanner. (28-Jan 2014). Processes controlling Southern Ocean shortwave climate feedbacks in CESM. GEOPHYSICAL RESEARCH LETTERS, 41(2), 616-622. 10.1002/2013GL058315
  • English, JM, JE Kay, A Gettelman, XH Liu, Y Wang, YY Zhang and H Chepfer. (1-Jul 2014). Contributions of Clouds, Surface Albedos, and Mixed-Phase Ice Nucleation Schemes to Arctic Radiation Biases in CAM5. JOURNAL OF CLIMATE, 27(13), 5174-5197. 10.1175/JCLI-D-13-00608.1
  • Holland, MM, E Blanchard-Wrigglesworth, J Kay and S Vavrus. (28-May 2013). Initial-value predictability of Antarctic sea ice in the Community Climate System Model 3. GEOPHYSICAL RESEARCH LETTERS, 40(10), 2121-2124. 10.1002/grl.50410
  • Kay, JE and T LEcuyer. (16-Jul 2013). Observational constraints on Arctic Ocean clouds and radiative fluxes during the early 21st century. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 118(13), 7219-7236. 10.1002/jgrd.50489
  • Meehl, GA, WM Washington, JM Arblaster, AX Hu, HY Teng, JE Kay, A Gettelman, DM Lawrence, BM Sanderson and WG Strand. (SEP 2013). Climate Change Projections in CESM1(CAM5) Compared to CCSM4. JOURNAL OF CLIMATE, 26(17), 6287-6308. 10.1175/JCLI-D-12-00572.1
  • Hurrell, JW, MM Holland, PR Gent, S Ghan, JE Kay, PJ Kushner, JF Lamarque, WG Large, D Lawrence, K Lindsay, WH Lipscomb, MC Long, N Mahowald, DR Marsh, RB Neale, P Rasch, S Vavrus, M Vertenstein, D Bader, WD Collins, JJ Hack, J Kiehl and S Marshall. (SEP 2013). The Community Earth System Model A Framework for Collaborative Research. BULLETIN OF THE AMERICAN METEOROLOGICAL SOCIETY, 94(9), 1339-1360. 10.1175/BAMS-D-12-00121.1
  • Sand, M, TK Berntsen, JE Kay, JF Lamarque, O Seland and A Kirkevag. (2013). The Arctic response to remote and local forcing of black carbon. ATMOSPHERIC CHEMISTRY AND PHYSICS, 13(1), 211-224. 10.5194/acp-13-211-2013
  • Brady, EC, BL Otto-Bliesner, JE Kay and N Rosenbloom. (MAR 2013). Sensitivity to Glacial Forcing in the CCSM4. JOURNAL OF CLIMATE, 26(6), 1901-1925. 10.1175/JCLI-D-11-00416.1
  • Gettelman, A, JE Kay and JT Fasullo. (JUN 2013). Spatial Decomposition of Climate Feedbacks in the Community Earth System Model. JOURNAL OF CLIMATE, 26(11), 3544-3561. 10.1175/JCLI-D-12-00497.1
  • Bromwich, DH, JP Nicolas, KM Hines, JE Kay, EL Key, MA Lazzara, D Lubin, GM McFarquhar, IV Gorodetskaya, DP Grosvenor, T Lachlan-Cope and NPM van Lipzig. (12-Jan 2012). TROPOSPHERIC CLOUDS IN ANTARCTICA. REVIEWS OF GEOPHYSICS, 50. 10.1029/2011RG000363
  • Gettelman, A, JE Kay and KM Shell. (1-Mar 2012). The Evolution of Climate Sensitivity and Climate Feedbacks in the Community Atmosphere Model. JOURNAL OF CLIMATE, 25(5), 1453-1469. 10.1175/JCLI-D-11-00197.1
  • Jochum, M, A Jahn, S Peacock, DA Bailey, JT Fasullo, J Kay, S Levis and B Otto-Bliesner. (APR 2012). True to Milankovitch: Glacial Inception in the New Community Climate System Model. JOURNAL OF CLIMATE, 25(7), 2226-2239. 10.1175/JCLI-D-11-00044.1
  • Kay, JE, MM Holland, CM Bitz, E Blanchard-Wrigglesworth, A Gettelman, A Conley and D Bailey. (15-Aug 2012). The Influence of Local Feedbacks and Northward Heat Transport on the Equilibrium Arctic Climate Response to Increased Greenhouse Gas Forcing. JOURNAL OF CLIMATE, 25(16), 5433-5450. 10.1175/JCLI-D-11-00622.1
  • Cesana, G, JE Kay, H Chepfer, JM English and G de Boer. (19-Oct 2012). Ubiquitous low-level liquid-containing Arctic clouds: New observations and climate model constraints from CALIPSO-GOCCP. GEOPHYSICAL RESEARCH LETTERS, 39. 10.1029/2012GL053385
  • Raeder, K, JL Anderson, N Collins, TJ Hoar, JE Kay, PH Lauritzen and R Pincus. (15-Sep 2012). DART/CAM: An Ensemble Data Assimilation System for CESM Atmospheric Models. JOURNAL OF CLIMATE, 25(18), 6304-6317. 10.1175/JCLI-D-11-00395.1
  • Kay, JE, BR Hillman, SA Klein, Y Zhang, B Medeiros, R Pincus, A Gettelman, B Eaton, J Boyle, R Marchand and TP Ackerman. (1-Aug 2012). Exposing Global Cloud Biases in the Community Atmosphere Model (CAM) Using Satellite Observations and Their Corresponding Instrument Simulators. JOURNAL OF CLIMATE, 25(15), 5190-5207. 10.1175/JCLI-D-11-00469.1
  • de Boer, G, W Chapman, JE Kay, B Medeiros, MD Shupe, S Vavrus and J Walsh. (APR 2012). A Characterization of the Present-Day Arctic Atmosphere in CCSM4. JOURNAL OF CLIMATE, 25(8), 2676-2695. 10.1175/JCLI-D-11-00228.1
  • Jahn, A, K Sterling, MM Holland, JE Kay, JA Maslanik, CM Bitz, DA Bailey, J Stroeve, EC Hunke, WH Lipscomb and DA Pollak. (1-Mar 2012). Late-Twentieth-Century Simulation of Arctic Sea Ice and Ocean Properties in the CCSM4. JOURNAL OF CLIMATE, 25(5), 1431-1452. 10.1175/JCLI-D-11-00201.1
  • Stroeve, JC, MC Serreze, MM Holland, JE Kay, J Malanik and AP Barrett. (FEB 2012). The Arctics rapidly shrinking sea ice cover: a research synthesis. CLIMATIC CHANGE, 110(4-Mar), 1005-1027. 10.1007/s10584-011-0101-1
  • Kay, JE, K Raeder, A Gettelman and J Anderson. (15-Jan 2011). The Boundary Layer Response to Recent Arctic Sea Ice Loss and Implications for High-Latitude Climate Feedbacks. JOURNAL OF CLIMATE, 24(2), 428-447. 10.1175/2010JCLI3651.1
  • Kay, JE, MM Holland and A Jahn. (11-Aug 2011). Inter-annual to multi-decadal Arctic sea ice extent trends in a warming world. GEOPHYSICAL RESEARCH LETTERS, 38. 10.1029/2011GL048008
  • Medeiros, B, C Deser, RA Tomas and JE Kay. (SEP 2011). Arctic Inversion Strength in Climate Models. JOURNAL OF CLIMATE, 24(17), 4733-4740. 10.1175/2011JCLI3968.1
  • Hwang, YT, DMW Frierson and JE Kay. (10-Sep 2011). Coupling between Arctic feedbacks and changes in poleward energy transport. GEOPHYSICAL RESEARCH LETTERS, 38. 10.1029/2011GL048546
  • Gettelman, A, PH Lauritzen, M Park and JE Kay. (8-Jul 2009). Processes regulating short-lived species in the tropical tropopause layer. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 114. 10.1029/2009JD011785
  • Kay, JE and A Gettelman. (19-Sep 2009). Cloud influence on and response to seasonal Arctic sea ice loss. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 114. 10.1029/2009JD011773
  • Kay, JE, T LEcuyer, A Gettelman, G Stephens and C ODell. (22-Apr 2008). The contribution of cloud and radiation anomalies to the 2007 Arctic sea ice extent minimum. GEOPHYSICAL RESEARCH LETTERS, 35(8). 10.1029/2008GL033451
  • Kay, JE and R Wood. (23-May 2008). Timescale analysis of aerosol sensitivity during homogeneous freezing and implications for upper tropospheric water vapor budgets. GEOPHYSICAL RESEARCH LETTERS, 35(10). 10.1029/2007GL032628
  • Stephens, GL, DG Vane, S Tanelli, E Im, S Durden, M Rokey, D Reinke, P Partain, GG Mace, R Austin, T LEcuyer, J Haynes, M Lebsock, K Suzuki, D Waliser, D Wu, J Kay, A Gettelman, Z Wang and R Marchand. (10-Dec 2008). CloudSat mission: Performance and early science after the first year of operation. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 113(D23). 10.1029/2008JD009982
  • Drobot, S, J Stroeve, J Maslanik, W Emery, C Fowler and J Kay. (1-Oct 2008). Evolution of the 2007-2008 Arctic sea ice cover and prospects for a new record in 2008. GEOPHYSICAL RESEARCH LETTERS, 35(19). 10.1029/2008GL035316
  • Kay, JE, M Baker and D Hegg. (2007). Physical controls on orographic cirrus inhomogeneity. ATMOSPHERIC CHEMISTRY AND PHYSICS, 7(14), 3771-3781. 10.5194/acp-7-3771-2007
  • Handcock, RN, AR Gillespie, KA Cherkauer, JE Kay, SJ Burges and SK Kampf. (28-Feb 2006). Accuracy and uncertainty of thermal-infrared remote sensing of stream temperatures at multiple spatial scales. REMOTE SENSING OF ENVIRONMENT, 100(4), 427-440. 10.1016/j.rse.2005.07.007
  • Kay, JE, M Baker and D Hegg. (22-Dec 2006). Microphysical and dynamical controls on cirrus cloud optical depth distributions. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES, 111(D24). 10.1029/JD006916
  • Kay, JE, SK Kampf, RN Handcock, KA Cherkauer, AR Gillespie and SJ Burges. (OCT 2005). Accuracy of lake and stream temperatures estimated from thermal infrared images. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, 41(5), 1161-1175. 10.1111/j.1752-1688.2005.tb03791.x
  • Cherkauer, KA, SJ Burges, RN Handcock, JE Kay, SK Kampf and AR Gillespie. (OCT 2005). Assessing satellite-based and aircraft-based thermal infrared remote sensing for monitoring Pacific Northwest river temperature. JOURNAL OF THE AMERICAN WATER RESOURCES ASSOCIATION, 41(5), 1149-1159. 10.1111/j.1752-1688.2005.tb03790.x
  • Kay, JE, AR Gillespie, GB Hansen and EC Pettit. (30-Jul 2003). Spatial relationships between snow contaminant content, grain size, and surface temperature from multispectral images of Mt. Rainier, Washington (USA). REMOTE SENSING OF ENVIRONMENT, 86(2), 216-231. 10.1016/S0034-4257(03)00102-0
  • Kay, JE, V Tsemekhman, B Larson, M Baker and B Swanson. (22-Sep 2003). Comment on evidence for surface-initiated homogeneous nucleation. ATMOSPHERIC CHEMISTRY AND PHYSICS, 3, 1439-1443. 10.5194/acp-3-1439-2003
  • Turtle, EP, ME Minitti, BA Cohen, NL Chabot, D Tourbier, C Bachman, J Brock, R Foerstner, GV Hoppa, J Kay, CA Lewicki, RME Mastrapa, J Patel, N Sherman, JN Spitale, AS Rivkin, DE Trilling, D Villegas and CM Weitz. (AUG-NOV 1999). AMBASSADOR: Asteroid sample return mission to 7 Iris. ACTA ASTRONAUTICA, 45(9-Apr), 415-422. 10.1016/S0094-5765(99)00161-7