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Proceedings Paper

Geostationary imaging Fabry-Perot spectrometer (GIFS): measurement of clouds and trace gases
Author(s): Jeng-Hwa Yee; Robert DeMajistre; William H. Swartz; M. Frank Morgan; John D. Boldt; Wilbert R. Skinner; Michael C. Pitts; Chris A. Hostetler
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Paper Abstract

Long-term measurements of the global distributions of clouds, trace gases, and surface reflectance are needed for the study and monitoring of global change and air quality. The Geostationary Imaging Fabry-Perot Spectrometer (GIFS) instrument is an example of a next-generation satellite remote sensing concept. GIFS is designed to be deployed on a geostationary satellite, where it can make continuous hemispheric imaging observations of cloud properties (including cloud top pressure, optical depth, and fraction), trace gas concentrations, such as tropospheric and boundary layer CO, and surface reflectance and pressure. These measurements can be made with spatial resolution, accuracy, and revisit time suitable for monitoring applications. It uses an innovative tunable imaging triple-etalon Fabry-Perot interferometer to obtain very high-resolution line-resolved spectral images of backscattered solar radiation, which contains cloud and trace gas information. An airborne GIFS prototype and the measurement technique have been successfully demonstrated in a recent field campaign onboard the NASA P3B based at Wallops Island, Virginia. In this paper, we present the preliminary GIFS instrument design and use GIFS prototype measurements to demonstrate the instrument functionality and measurement capabilities.

Paper Details

Date Published: 13 October 2008
PDF: 12 pages
Proc. SPIE 7107, Remote Sensing of Clouds and the Atmosphere XIII, 71070X (13 October 2008); doi: 10.1117/12.799875
Show Author Affiliations
Jeng-Hwa Yee, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Robert DeMajistre, The Johns Hopkins Univ. Applied Physics Lab. (United States)
William H. Swartz, The Johns Hopkins Univ. Applied Physics Lab. (United States)
M. Frank Morgan, The Johns Hopkins Univ. Applied Physics Lab. (United States)
John D. Boldt, The Johns Hopkins Univ. Applied Physics Lab. (United States)
Wilbert R. Skinner, Univ. of Michigan (United States)
Michael C. Pitts, NASA Langley Research Ctr. (United States)
Chris A. Hostetler, NASA Langley Research Ctr., (United States)


Published in SPIE Proceedings Vol. 7107:
Remote Sensing of Clouds and the Atmosphere XIII
Richard H. Picard; Adolfo Comeron; Klaus Schäfer; Aldo Amodeo; Michiel van Weele, Editor(s)

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