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Proceedings Paper

High-precision broadband extinction measurements using differential solar occultation
Author(s): Larry L. Gordley; Benjamin Thomas Marshall; Mark E. Hervig; Martin J. McHugh; James M. Russell III; John C. Kemp; Ellis E. Remsberg; R. Earl Thompson
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Paper Abstract

Solar occultation measurements from satellite have been very successful at sounding the upper atmosphere from cloud-top to well into the mesosphere (e.g. HALOE, ATMOS, SAGE, POAM). The HALOE instrument achieves transmission precision of 4 X10-6 at 2 arcminute resolution (1.6 Km at the Earth limb) with the differential gas correlation technique. With modern detectors, high precision tracking, better throughput and differential broadband radiometry, achievable precision should approach 10-7 (~10-9 km-1 extinction) or better. We show that this will allow accurate sounding of CO2, O3, H2O and NO mixing ratios simultaneously with temperature and pressure well into the lower thermosphere. In addition, such precision could provide the first mapping of the Earth's cosmic dust layer.

Paper Details

Date Published: 8 February 2002
PDF: 7 pages
Proc. SPIE 4486, Infrared Spaceborne Remote Sensing IX, (8 February 2002); doi: 10.1117/12.455118
Show Author Affiliations
Larry L. Gordley, G and A Technical Software, Inc. (United States)
Benjamin Thomas Marshall, G and A Technical Software, Inc. (United States)
Mark E. Hervig, G and A Technical Software, Inc. (United States)
Martin J. McHugh, G and A Technical Software, Inc. (United States)
James M. Russell III, Hampton Univ. (United States)
John C. Kemp, Utah State Univ. (United States)
Ellis E. Remsberg, NASA Langley Research Ctr. (United States)
R. Earl Thompson, G and A Technical Software, Inc. (United States)

Published in SPIE Proceedings Vol. 4486:
Infrared Spaceborne Remote Sensing IX
Marija Strojnik; Bjorn F. Andresen, Editor(s)

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