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An orbiting multispectral scanner for overland and oceanographic applications.Description of the major features of a multispectral scanner designed to perform overland and oceanographic surveys from space. The instrument uses an image plane conical scanner and contains independent spectrometers for land and ocean applications. The overland spectrometer has a spatial resolution of 200 ft and has six spectral bands in the atmospheric windows between 0.5 and 2.4 microns. The oceanographic spectrometer has a spatial resolution of 1200 ft and possesses 24 spectral bands equally spaced and in registration over the wavelength range from 0.4 to 0.8 micron. A thermal band of 600-ft resolution is used with a spectral range from 10.5 to 12.6 microns. The swath width of the scan is 100 nautical miles from an altitude of 500 nautical miles. The system has two modes of operation which are selectable by ground command. The six bands of overland data plus the thermal band data can be transmitted, or the 24 bands of oceanographic data plus data from two of the overland bands and the thermal band can be transmitted. The performance is described by the minimum detectable reflectance difference and the effects of sun angle and target reflectivity variations are discussed. The sensitivity is related to the variation of the ocean reflectivity in the presence of chlorophyll and to typical agricultural targets.
Document ID
19720028157
Document Type
Conference Proceedings
Authors
Peacock, K.
Withrington, R. J.
(Bendix Corp. Aerospace Systems Div., Ann Arbor, Mich., United States)
Date Acquired
August 6, 2013
Publication Date
January 1, 1971
Subject Category
Instrumentation And Photography
Meeting Information
Meeting: International Symposium on Remote Sensing of Environment, 7th, University of Michigan
Location: Ann Arbor, MI
Start Date: May 17, 1971
End Date: May 21, 1971
Accession Number
72A11823
Funding Number(s)
CONTRACT_GRANT: NASW-2119
Distribution Limits
Public
Copyright
Other

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