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Research Papers

Ground-based measurements with the Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) engineering demonstration unit - experiment description and first results

[+] Author Affiliations
Daniel K. Zhou

NASA Langley Research Center

William L. Smith

University of Wisconsin/Madison & Hampton University

Gail E. Bingham

Utah State University

Ronald J. Huppi

Consultant

Henry E. Revercomb

University of Wisconsin/Madison

Lorin J. Zollinger, John D. Elwell

Utah State University

Allen M. Larar, Xu Liu

NASA Langley Research Center

Joseph J. Tansock

Utah State University

Robert A. Reisse

NASA Langley Research Center

Ronald Hooker

NASA

J. Appl. Remote Sens. 1(1), 013528 (August 23, 2007). doi:10.1117/1.2784288
History: Received April 6, 2007; Revised July 20, 2007; Accepted August 21, 2007; August 23, 2007; Online August 23, 2007
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Abstract

The Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) Engineering Demonstration Unit (EDU) is an imaging infrared spectrometer designed for atmospheric soundings. It measures the infrared spectrum in two spectral bands (14.6 to 8.8 um, 6.0 to 4.4 um) using two 128x128 detector arrays with an unapodized spectral resolution of 0.57 cm-1 (i.e., with a maximum optical path difference of ~0.88 cm) and a full spectral resolution scan duration of ~11 seconds. From a geosynchronous orbit, the instrument will have the capability of taking successive measurements of different geographical areas to scan any desired region of the globe, from which atmospheric temperature and moisture soundings, cloud and surface parameters, wind profiles, as well as other derived products can be retrieved. The GIFTS EDU provides a flexible and accurate testbed for the new challenges of the emerging hyperspectral era. The EDU ground-based measurement experiment, held in Logan, Utah during September 2006, demonstrated extensive capabilities and the potential for geosynchronous satellite and other platform Earth observing environmental measurements. This paper addresses the ground-based experiment objectives and provides "first-look" results illustrating the overall performance of the sensor system with a focus on the GIFTS EDU imaging capability and proof of the GIFTS measurement concept.

© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Daniel K. Zhou ; William L. Smith ; Gail E. Bingham ; Ronald J. Huppi ; Henry E. Revercomb, et al.
"Ground-based measurements with the Geosynchronous Imaging Fourier Transform Spectrometer (GIFTS) engineering demonstration unit - experiment description and first results", J. Appl. Remote Sens. 1(1), 013528 (August 23, 2007). ; http://dx.doi.org/10.1117/1.2784288


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