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Column atmospheric water vapor retrievals from airborne imaging spectrometer dataHigh-spatial-resolution column atmospheric water vapor amounts were derived from spectral data collected by the Airborne Visible Infrared Imaging Spectrometer (AVIRIS). The quantitative derivation is made by curve fitting observed spectra with calculated spectra in the 1.14- and 0.94-micron water-vapor band absorption regions with a nonlinear least-squares technique. The precision of the retrieved column water vapor is approximately 5 percent. The derived column water vapor amounts are independent of the absolute surface reflectance. Curve fitting of spectra near 1 micron from areas covered with vegetation indicates that both the amount of atmospheric water vapor and the moisture content of vegetation can be retrieved simultaneously. It should be possible to measure column water vapor over land areas from satellite altitude with the proposed high-resolution imaging spectrometer or even the moderate-resolution imaging spectrometer.
Document ID
19910031333
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gao, Bo-Cai
(Colorado Univ. Boulder, CO, United States)
Goetz, Alexander F. H.
(Cooperative Institute for Research in Environmental Sciences Boulder, CO, United States)
Date Acquired
August 15, 2013
Publication Date
January 1, 1989
Subject Category
Meteorology And Climatology
Accession Number
91A15956
Funding Number(s)
CONTRACT_GRANT: JPL-958039
Distribution Limits
Public
Copyright
Other

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