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Proceedings Paper

Geostationary Imaging FTS (GIFTS) data processing: measurement simulation and compression
Author(s): Hung-Lung Huang; Henry E. Revercomb; Jonathan Thom; Paolo B. Antonelli; Brian Osborne; David C. Tobin; Robert O. Knuteson; Raymond K. Garcia; Steve Dutcher; Jun Li; William L. Smith
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Paper Abstract

GIFTS, a forerunner of next generation geostationary satellite weather observing systems, will be built to fly on the NASA EO-3 geostationary orbit mission in 2004 to demonstrate the use of large area detector arrays and readouts. Timely high spatial resolution images and quantitative soundings of clouds, water vapor, temperature, and pollutants of the atmosphere for weather prediction and air quality monitoring will be achieved. GIFTS is novel in terms of providing many scientific returns that traditionally can only be achieved by separate advanced imaging and sounding systems. GIFTS' ability to obtain half- hourly high vertical density wind over the full earth disk is revolutionary. However, these new technologies bring forth many challenges for data transmission, archiving, and geophysical data processing. In this paper, we will focus on the aspect of data volume and downlink issues by conducting a GIFTS data compression experiment. We will discuss the scenario of using principal component analysis as a foundation for atmospheric data retrieval and compression of uncalibrated and un-normalized interferograms. The effects of compression on the degradation of the signal and noise reduction in interferogram and spectral domains will be highlighted. A simulation system developed to model the GIFTS instrument measurements is described in detail.

Paper Details

Date Published: 8 February 2001
PDF: 12 pages
Proc. SPIE 4151, Hyperspectral Remote Sensing of the Land and Atmosphere, (8 February 2001); doi: 10.1117/12.416997
Show Author Affiliations
Hung-Lung Huang, Univ. of Wisconsin/Madison (United States)
Henry E. Revercomb, Univ. of Wisconsin/Madison (United States)
Jonathan Thom, Univ. of Wisconsin/Madison (United States)
Paolo B. Antonelli, Univ. of Wisconsin/Madison (United States)
Brian Osborne, Univ. of Wisconsin/Madison (United States)
David C. Tobin, Univ. of Wisconsin/Madison (United States)
Robert O. Knuteson, Univ. of Wisconsin/Madison (United States)
Raymond K. Garcia, Univ. of Wisconsin/Madison (United States)
Steve Dutcher, Univ. of Wisconsin/Madison (United States)
Jun Li, Univ. of Wisconsin/Madison (United States)
William L. Smith, NASA Langley Research Ctr. (United States)

Published in SPIE Proceedings Vol. 4151:
Hyperspectral Remote Sensing of the Land and Atmosphere
William L. Smith; Yoshifumi Yasuoka, Editor(s)

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