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Title: Preface to special section : validation of Atmospheric Infrared Sounder observations
Authors: Fetzer, Eric J.
Keywords: Atmospheric Infrared Sounder (AIRS)
water vapor
radiative transfer models
atmospheric composition
Issue Date: 13-May-2006
Publisher: American Geophysical Union
Citation: Journal Of Geophysical Research, Vol. 111, D09S01, doi:10.1029/2005JD007020, 2006
Abstract: The papers described below demonstrate that the AIRS calibrated radiances and retrieved geophysical products generally meet or exceed the prelaunch specifications. The retrieved quantities show little variation in uncertainty as a function of cloud amount. However, AIRS retrieval yield is a rapidly decreasing function of cloud amount; at about 80% cloudiness essentially no infrared radiances are used in the retrieval processes. Also, AIRS performance has not been demonstrated for all conditions and products. Calibrated and forward calculated radiances meet performance specifications for conditions varying from the cold poles to warm tropics. The retrieval system performs well over extrapolar land in the free troposphere (~2–15 km above the surface) and over extrapolar oceans at all tropospheric altitudes. The AIRS retrieval algorithms have not been optimized for polar winter conditions, so no such results are presented in these papers.
Appears in Collections:JPL TRS 1992+

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