HR: 0800h
AN: A41B-0425    [Abstracts]
TI: Atmospheric and surface/cloud parameters retrieved from satellite hyperspectral infrared sounder measurements
AU: * Zhou, D K
EM: daniel.k.zhou@nasa.gov
AF: NASA Langley Research Center, 21 Langley Blvd., Hampton, VA 23681, United States
AU: Liu, X
AF: NASA Langley Research Center, 21 Langley Blvd., Hampton, VA 23681, United States
AU: Larar, A M
AF: NASA Langley Research Center, 21 Langley Blvd., Hampton, VA 23681, United States
AU: Smith, W L
AF: Hampton University, 23 Tyler Street, Hampton, VA 23668, United States
AU: Schlüssel, P
AF: EUMETSAT, Am Kavalleriesand 31, Darmstadt, 64295, Germany
AU: Yang, P
AF: Texas A&M University, Department of Atmospheric Sciences Texas A&M University, College Station, TX 77843, United States
AU: Strow, L
AF: Univ. of Maryland Baltimore County, 1000 Hilltop Circle, Baltimore, MD 21250, United States
AB: An advanced retrieval algorithm with a fast radiative transfer model, including cloud effects, is used for atmospheric profile and cloud parameter retrieval. This physical inversion scheme has been developed, dealing with cloudy as well as cloud-free radiance observed with ultraspectral infrared sounders, to simultaneously retrieve surface, atmospheric thermodynamic, and cloud microphysical parameters. A fast radiative transfer model, which applies to the clouded atmosphere, is used for atmospheric profile and cloud parameter retrieval. A one-dimensional (1-d) variational multi-variable inversion solution is used to improve an iterative background state defined by an eigenvector-regression-retrieval. The solution is iterated in order to account for non-linearity in the 1-d variational solution. This retrieval algorithm is applied to the MetOp satellite Infrared Atmospheric Sounding Interferometer (IASI) launched on October 19, 2006. IASI possesses an ultra-spectral resolution of 0.25 cm-1 and a spectral coverage from 645 to 2760 cm-1. Preliminary retrievals of atmospheric soundings, surface properties, and cloud optical/microphysical properties with the IASI measurements are obtained and presented.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0319 Cloud optics
DE: 0399 General or miscellaneous
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting