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Monitoring Earth's Shortwave Reflectance: GEO Instrument ConceptIn this paper we present a GEO instrument concept dedicated to monitoring the Earth's global spectral reflectance with a high revisit rate. Based on our measurement goals, the ideal instrument needs to be highly sensitive (SNR greater than 100) and to achieve global coverage with spectral sampling (less than or equal to 10nm) and spatial sampling (less than or equal to 1km) over a large bandwidth (380-2510 nm) with a revisit time (greater than or equal to greater than or equal to 3x/day) sufficient to fully measure the spectral-radiometric-spatial evolution of clouds and confounding factor during daytime. After a brief study of existing instruments and their capabilities, we choose to use a GEO constellation of up to 6 satellites as a platform for this instrument concept in order to achieve the revisit time requirement with a single launch. We derive the main parameters of the instrument and show the above requirements can be fulfilled while retaining an instrument architecture as compact as possible by controlling the telescope aperture size and using a passively cooled detector.
Document ID
20160009642
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Brageot, Emily
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mercury, Michael
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Green, Robert
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Mouroulis, Pantazis
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Gerwe, David
(Boeing Phantom Works Huntington Beach, CA, United States)
Date Acquired
August 1, 2016
Publication Date
March 7, 2015
Subject Category
Geophysics
Meeting Information
Meeting: 2015 IEEE Aerospace Conference
Location: Big Sky, MT
Country: United States
Start Date: March 7, 2015
End Date: March 14, 2015
Sponsors: Institute of Electrical and Electronics Engineers
Distribution Limits
Public
Copyright
Other
Keywords
geoengineering
Spectral albedo

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