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Proceedings Paper

Wedge-filter Imaging Sounder for Humidity (WISH): a practical NPOESS P3I and geostationary Earth orbit high-spatial resolution sensor
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Paper Abstract

Tropospheric wind estimation is among the top priorities for the NPOESS Pre-Planned Product Improvement (P3I). This Environmental Data Record (EDR) can be achieved by tracking high spatial resolution altitude-resolved water vapor features at appropriate timescales using humidity imaging sounder observations. A Wedge-filter Imaging Sounder (WIS) can provide the required humidity imagery and has already been studied for application in geostationary orbit. The geostationary WIS would use spatially variable wedge filter spectrometers to collect earth radiances with ~1 km resolution over a broad infrared (710-2900 cm-1) spectral region at 1% spectral resolution. The proposed sensor is a compact, lightweight, and rugged imaging sounder with better sensitivity, spectral resolution, spatial resolution than the current multispectral GOES imager and with full disk coverage rates. A Wedge-filter Imaging Sounder for Humidity (WISH) incorporates the same Raytheon WIS technology and is being proposed for consideration for flight on the NPOESS 2130 and 1730 LTAN spacecrafts. WISH would take advantage of the payload capacity available for P3I demonstrations in NPOESS and would serve as a risk reduction and technology demonstration for future NOAA environmental satellite missions. In this paper, we present our analysis of WISH performance toward achieving the NPOESS P3I tropospheric wind objective. The practicality of WISH for the current NPOESS LTAN spacecraft configuration and its instrument concept, sensor design, detector performance, measurement calibration, and system specification is discussed in a companion paper.

Paper Details

Date Published: 20 January 2005
PDF: 8 pages
Proc. SPIE 5655, Multispectral and Hyperspectral Remote Sensing Instruments and Applications II, (20 January 2005); doi: 10.1117/12.578442
Show Author Affiliations
Hung-Lung Allen Huang, Univ. of Wisconsin/Madison (United States)
Hal J. Bloom, National Oceanic and Atmospheric Administration (United States)
Jeffery J. Puschell, Raytheon Space and Airborne Systems (United States)
Paul W. Menzel, National Oceanic and Atmospheric Administration/NESDIS (United States)

Published in SPIE Proceedings Vol. 5655:
Multispectral and Hyperspectral Remote Sensing Instruments and Applications II
Allen M. Larar; Makoto Suzuki; Qingxi Tong, Editor(s)

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