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Proceedings Paper

Novel spectrograph/radiometer for cloud top height measurement using three complementary techniques
Author(s): Hongwoo Park; Peter F. Soulen; Coorg R. Prasad
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Paper Abstract

A proof-of-concept (POC) instrument system to measure cloud top height from space using three complementary techniques is presented. These techniques use measurements of (1) thermal infrared (IR), (2) molecular oxygen 'A' band absorption, and (3) filling-in of Fraunhofer lines (the Ring effect), respectively. Combining three techniques is achieved with a single grating spectrograph with bandpass and order sorting filters by measuring 11 micrometer radiation from the zeroth order of the grating for the IR, 750 - 780 nm radiation from the first order for the 'A' band absorption, and 390 - 400 nm radiation from the second order for the Ca K and H Fraunhofer line filling-in effect. The POC system and its measurement results with the POC system are described.

Paper Details

Date Published: 31 December 1997
PDF: 7 pages
Proc. SPIE 3221, Sensors, Systems, and Next-Generation Satellites, (31 December 1997); doi: 10.1117/12.298103
Show Author Affiliations
Hongwoo Park, NASA Goddard Space Flight Ctr. (United States)
Peter F. Soulen, NASA Goddard Space Flight Ctr. and Univ. of Maryland/Baltimore County (United States)
Coorg R. Prasad, Science & Engineering Services, Inc. (United States)

Published in SPIE Proceedings Vol. 3221:
Sensors, Systems, and Next-Generation Satellites
Hiroyuki Fujisada, Editor(s)

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