HR: 16:00h
AN: A44C-01    [Abstracts]
TI: Discoveries on Upper-Tropospheric Cloud Ice From MLS: Comparisons With Analyses and GCMs
AU: * Li, J
EM: jli@jpl.nasa,gov
AF: SkillStorm at JPL/CalTech, JPL, Pasadena, CA 91109 United States
AU: Waliser, D
EM: duane.waliser@jpl.nasa.gov
AF: JPL/CalTech, JPL, Pasadena, CA 91109 United States
AU: Jiang, J
EM: Jonathan.H.Jiang@jpl.nasa.gov
AF: JPL/CalTech, JPL, Pasadena, CA 91109 United States
AU: Read, W
EM: bill@mls.jpl.nasa.gov
AF: JPL/CalTech, JPL, Pasadena, CA 91109 United States
AU: Waters, J
EM: joe@mls.jpl.nasa.gov
AF: JPL/CalTech, JPL, Pasadena, CA 91109 United States
AU: Wu, D
EM: dwu@mls.jpl.nasa.gov
AF: JPL/CalTech, JPL, Pasadena, CA 91109 United States
AU: Tompkins, A
EM: paw@ecmwf.int
AF: ECMWF, Shinfield Park Reading Berks RG 2AX, Reading, RG 2AX
AU: Donner, L
EM: leo.j.donner@noaa.gov
AF: GFDL/NOAA, Princeton University P.O. Box 308, Princeton, NJ 08542 United States
AU: Chern, J
EM: chern@agnes.gsfc.nasa.gov
AF: GEST/GSFC/NASA, GSFC/NASA, Greenbelt, MD 20771 United States
AU: Chern, J
EM: chern@agnes.gsfc.nasa.gov
AF: Department of Atmospheric Science Colorado State University, Department of Atmospheric Science Colorado State University, Fort Collins, CO 80523 United States
AU: Tao, W
EM: tao@agnes.gsfc.nasa.gov
AF: GSFC/NASA, GSFC/NASA, Greenbelt, MD 20771 United States
AU: Atlas, R
EM: ratlas@dao.gsfc.nasa.gov
AF: GSFC/NASA, GSFC/NASA, Greenbelt, MD 20771 United States
AU: Gu, Y
EM: gu@atmos.ucla.edu
AF: Dept. Atmos. Sci., 405 Hilgard Ave Box 951565, LA, CA 90095 United States
AU: Liou, K
EM: knliou@atmos.ucla.edu
AF: Dept. Atmos. Sci., 405 Hilgard Ave Box 951565, LA, CA 90095 United States
AU: Genio, A
EM: adelgenio@giss.nasa.gov
AF: GISS/NASA, NASA/GISS 2880 Broadway , NY, NY 10025 United States
AU: Khairoutdinov, M
EM: marat@atmos.colostate.edu
AF: Department of Atmospheric Science Colorado State University, Department of Atmospheric Science Colorado State University, Fort Collins, CO 80523 United States
AU: Gettelman, A
EM: andrew@ucar.edu
AF: NCAR, 1850 Table Mesa Dr. Boulder, CO 80305 , Boulder, CO 80305 United States
AB: To assess the status of global climate models (GCMs) in simulating upper-tropospheric ice water content (IWC), a new set of IWC measurements from the Earth Observing System's Microwave Limb Sounder (MLS) are used. Comparisons are made with ECMWF analyses and simulations from several GCMs, including two with multi-scale-modeling framework. For January 2005 monthly and daily mean values, the spatial agreement between MLS and ECMWF is quite good, although MLS estimates are higher by a factor of 2-3 over the Western Pacific, tropical Africa and South America. For the GCMs, the model-data agreement is within a factor of 2-4 with larger values of disagreement occurring over Eastern Pacific and Atlantic ITCZs, tropical Africa and South America. The implications arising from sampling and uncertainties in the observations, the modeled values and their comparison are discussed. These initial results demonstrate the potential usefulness of this data set for evaluating GCM performance and guiding development efforts.
DE: 0321 Cloud/radiation interaction
DE: 0466 Modeling
DE: 0480 Remote sensing
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005