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Proceedings Paper

Geostationary Imaging Fabry-Perot Spectrometer (GIFS)
Author(s): Jeng-Hwa Yee; M. Frank Morgan; Robert DeMajistre; Elsayed R. Talaat; James F. Garten; William H. Swartz; Wilbert R. Skinner
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Paper Abstract

Long-term measurements of the global distribution of clouds and the surface reflectance are needed to provide inputs to climatological models for global change studies. The Geostationary Imaging Fabry-Perot Spectrometer (GIFS) instrument is a next-generation satellite concept, to be deployed on a geostationary satellite for continuous hemispheric imaging of cloud properties, including cloud top pressure, optical depth, fraction, and surface reflectance. This is an ideal approach to make these cloud property measurements with desired spatial resolution, accuracy, and revisit time. It uses an innovative tunable imaging triple-etalon Fabry-Perot interferometer to obtain images of high-resolution spectral line shapes of two O2 B-band lines in the backscattered solar radiation. The GIFS remote sensing technique takes advantage of the pressure broadening information embedded in the absorption line shapes to better determine cloud properties, especially for those clouds below 5 km. We present a preliminary instrument design, including the general instrument requirements.

Paper Details

Date Published: 30 December 2004
PDF: 9 pages
Proc. SPIE 5660, Instruments, Science, and Methods for Geospace and Planetary Remote Sensing, (30 December 2004); doi: 10.1117/12.607562
Show Author Affiliations
Jeng-Hwa Yee, Johns Hopkins Univ. (United States)
M. Frank Morgan, Johns Hopkins Univ. (United States)
Robert DeMajistre, Johns Hopkins Univ. (United States)
Elsayed R. Talaat, Johns Hopkins Univ. (United States)
James F. Garten, Johns Hopkins Univ. (United States)
William H. Swartz, Johns Hopkins Univ. (United States)
Wilbert R. Skinner, Univ. of Michigan (United States)

Published in SPIE Proceedings Vol. 5660:
Instruments, Science, and Methods for Geospace and Planetary Remote Sensing
Carl A. Nardell; Paul G. Lucey; Jeng-Hwa Yee; James B. Garvin, Editor(s)

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