J. Key Vitae Content

Supervisory Physical Scientist
National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, Madison, WI, 2003-present. Perform satellite meteorology research and develop high-latitude satellite products. Team Leader, Advanced Satellite Products Team. Manage a seven-member team involved in the algorithm development, the specification of future satellite systems, calibration, and the use of satellite products in weather prediction systems.

Physical Scientist
National Oceanic and Atmospheric Administration, National Environmental Satellite, Data, and Information Service, Madison, WI, 1999-2002. Perform satellite meteorology research and develop high-latitude satellite products. Acting Team Leader, Advanced Satellite Products Team, 4/2001-12/2002. Manage a seven-member team involved in the algorithm development, the specification of future satellite systems, calibration, and the use of satellite products in weather prediction systems.

Adjunct Associate Professor, Department of Atmospheric and Oceanic Sciences, University of Wisconsin-Madison, 2000-present.

Associate Professor
Department of Geography, Boston University, 1995-1999. Taught courses in meteorology, climatology, and remote sensing; conducted research in climatology and satellite remote sensing. Director of Graduate Studies, 1996-1998.

Education

Current Committees

WMO Space Task Group on the International Polar Year (IPY), NOAA represenative, 2007-present.

Lead, Integrated Global Observing Strategy (IGOS) Cryosphere Theme, 2004-present

Chair, Observation Products Panel, Climate and Cryosphere project of the WCRP, 2004-present

Cooperative Institute for Meteorological Satellite Studies (U. Wisconsin) Board of Directors, 2001-present

Space Science and Engineering Center (U. Wisconsin) Science Council, 2001-present

Field Work

Research

Interests: Polar climatology; cloud radiative effects; satellite remote sensing of the atmosphere; surface radiation budgets.

Grant Summary: PI, Co-PI, or Co-I on 37 grants totaling ~$13 million since 1990.

Teaching

Summary: Taught 15 different courses in remote sensing, meteorology, statistics, geography, and computer science at Boston University, the University of Colorado, the University of Alaska, and Northern Michigan University.

Recent Publications

Summary: Author/co-author on 71 refereed journal papers, 2 book chapters, ~45 published conference proceedings papers, and a variety of workshop papers and technical reports.

Liu, Y., J. Key, and X. Wang, 2008, The influence of changes in cloud cover on recent surface temperature trends in the Arctic, J. Climate, 21, 705-715, DOI: 10.1175/2007JCLI1681.1.

Liu, Y., J. Key, J. Francis, and X. Wang, 2007, Possible causes of decreasing cloud cover in the Arctic winter, 1982-2000, Geophys. Res. Letters, 34, L14705, doi:10.1029/2007GL030042.

Liu, Y., J. Key, A. Schweiger, and J. Francis, 2006, Characteristics of satellite-derived clear-sky atmospheric temperature inversion strength in the Arctic, 1980-1996, J. Climate, 19(19), 4902-4913.

Francis, J.A., E. Hunter, J. Key, and X. Wang, 2005, Clues to variability in Arctic minimum sea ice extent, Geophys. Res. Letters, vol. 32, L21501, doi: 10.1029/2005GL024376, November 15.

Chapin, F.S., M. Sturm, M.C. Serreze, J.P. McFadden, J.R. Key, A.H. Lloyd, A.D. McGuire, T.S. Rupp, A.H. Lynch, J.P. Schimel, J. Beringer, H.E. Epstein, L.D. Hinzman, G. Jia, C.-L. Ping, K. Tape, W.L. Chapman, E. Euskirchen, C.D.C. Thompson, J.M. Welker, and D.A. Walker, 2005, Role of land surface changes in Arctic summer warming, Science, vol. 310, doi: 10.1126/science.1117368, October 28.

Overpeck, J.T., M. Sturm, J.A. Francis, D.K. Perovich, M.C. Serreze, R. Benner, E.C. Carmack, F.S. Chapin III, S.C. Gerlach, L.C. Hamilton, L.D. Hinzman, M. Holland, H.P. Huntington, J.R. Key, A.H. Lloyd, G.M. MacDonald, J. McFadden, D. Noone, T.D. Prowse, P. Schlosser, and C. Vorosmarty, 2005, Arctic System on Trajectory to New State, EOS, 86(34), 309-314.

Wang, X. and J. Key, 2005, Arctic surface, cloud, and radiation properties based on the AVHRR Polar Pathfinder data set. Part I: Spatial and temporal characteristics, J. Climate, 18(14), 2558-2574.

Wang, X. and J. Key, 2005, Arctic surface, cloud, and radiation properties based on the AVHRR Polar Pathfinder data set. Part II: Recent trends, J. Climate, 18(14), 2575-2593.

Aoki, T. T.Y. Tanaka, A. Uchiyama, M. Chiba, M. Mikami, S. Yabuki, and J. Key, 2005, Sensitivity experiments of direct radiative forcing by mineral dust simulated with a chemical transport model, J. Meteorol. Soc. Japan, 83A, 315-331.

Liu, J., J.A. Curry, W.B. Rossow, J.R. Key, and X. Wang, 2005, Comparison of surrface radiative flux data sets over the Arctic Ocean, J. Geophys. Res., Vol.110, C02015, doi:10.1029/2004JC002381.

Velden, C., J. Daniels, D. Stettner, D. Santek, J. Key, J. Dunion, K. Holmlund, G. Dengel, W. Bresky, and P. Menzel, 2004, Recent innovations in deriving tropospheric winds from meteorological satellites, Bull. Amer. Meteorol. Soc., 86(2), 205-223.

Zuidema, P., B. Baker, Y. Han, J. Intrieri, J. Key, P. Lawson, S. Matrosov, M. Shupe, R. Stone, T. Uttal, 2005, An Arctic springtime mixed-phase cloudy boundary layer observed during SHEBA, J. Atmos. Sci., 62, 160-176.

Liu, Y., J. Key, R. Frey, S. Ackerman, and W.P. Menzel, 2004, Nighttime polar cloud detection with MODIS, J. Appl. Meteorol., 92, 181-194.

Hall, D.K., J. Key, K.A. Casey, G.A. Riggs, and D.J. Cavalieri, 2004, Sea ice surface temperature product from the Moderate Resolution Imaging Spectroradiometer (MODIS), IEEE Trans. Geosci. Remote Sensing, 42(5), 1076-1087.

Gultepe, I., G. Isaac, J. Key, T. Uttal, J. Intrieri, D. Starr, and K. Strawbridge, 2004, Dynamical and Microphysical Characteristics of Arctic Clouds Using Integrated Observations Collected Over SHEBA During the April 1998 FIRE-ACE Flights of the Canadian Convair, Meteorol. Atmos. Physics, 85, 235-263.

Pavolonis, M., J. Key, and J. Cassano, 2004, A study of the Antarctic surface energy budget using a coupled regional climate model forced with satellite-derived cloud properties, Mon. Wea. Rev., 132, 654-661.

Liu, Y. and J. Key, 2003, Detection and analysis of clear sky, low-level atmospheric temperature inversions with MODIS, J. Atmos. Ocean. Tech., 20, 1727-1737.

Pavolonis, M. and J. Key, 2003, Antarctic cloud radiative forcing at the surface estimated from the AVHRR Polar Pathfinder and ISCCP D1 data sets, 1985-1993, J. Appl. Meteorol., 42(6), 827-840.

Key, J., D. Santek, C.S. Velden, N. Bormann, J.-N. Thepaut, L.P. Riishojgaard, Y. Zhu, and W.P. Menzel, 2002, Cloud-drift and Water Vapor Winds in the Polar Regions from MODIS, IEEE Trans. Geosci. Remote Sensing, 41(2), 482-492.