Remote sensing of water vapor in the near IR from EOS/MODIS

Author

Kaufman, Yoram J. ; Gao, Bo-Cai

Volume

30

Issue

5

fYear

1992

fDate

9/1/1992 12:00:00 AM

Firstpage

871

Lastpage

884

Abstract

The LOWTRAN-7 code was used to simulate remote sensing of water vapor over 20 different surface covers. The simulation was used to optimize the water vapor channel selection and to test the accuracy of the remote sensing method. The channel selection minimizes the uncertainty in the derived water vapor due to variations in the spectral dependence of the surface reflectance. The selection also minimizes the sensitivity of the selected channels to possible drift in the channel position. The use of additional MODIS channels reduces the errors due to the effect of haze, subpixel clouds and uncertainties in the temperature profile. Remote sensing of the variation of water vapor from day to day will be more accurate, because the surface reflectances vary slowly with time. The method was applied to Airborne Visible Infrared Imaging Spectrometer (AVIRIS) data

Keywords

atmospheric humidity; atmospheric techniques; remote sensing; AVIRIS; Airborne Visible Infrared Imaging Spectrometer; LOWTRAN-7 code; MODIS channels; accuracy; atmosphere; channel selection; errors; haze; near IR; remote sensing; spectral dependence; subpixel clouds; surface covers; surface reflectance; temperature profile; water vapor; Clouds; Earth Observing System; Infrared imaging; MODIS; Optimization methods; Reflectivity; Remote sensing; Temperature sensors; Testing; Uncertainty;

fLanguage

English

Journal_Title

Geoscience and Remote Sensing, IEEE Transactions on

Publisher

ieee

ISSN

0196-2892

Type

jour

DOI

10.1109/36.175321

Filename

175321