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Multiwavelength scanning radiometer for airborne measurements of scattered radiation within cloudsA multi-wavelength scanning radiometer has been developed for measuring the angular distribution of scattered radiation deep within a cloud layer. The purpose of the instrument is to provide measurements from which the single scattering albedo of clouds can be derived as a function of wavelength. The radiometer has a 1-deg field of view and scans in the vertical plane from 5 deg before zenith to 5 deg past nadir (190 deg aperture). The thirteen channels of the cloud absorption radiometer are located between 0.5 and 2.3 microns and were selected to avoid the molecular absorption bands in the near-infrared. The first seven channels of the radiometer are simultaneously and continuously sampled, while the eighth registered channel is selected from among the six channels on a filter wheel. This paper describes the optical, mechanical and electrical design of the instrument and presents some early results obtained from measurements taken aboard the University of Washington's B-23 aircraft to illustrate the performance of the instrument.
Document ID
19870033690
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
King, Michael D.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Strange, Maxwell G.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Leone, Peter
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Blaine, Lamdin R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 13, 2013
Publication Date
September 1, 1986
Publication Information
Publication: Journal of Atmospheric and Oceanic Technology
Volume: 3
ISSN: 0739-0572
Subject Category
Aircraft Instrumentation
Accession Number
87A20964
Funding Number(s)
CONTRACT_GRANT: NSF ATM-82-18978
Distribution Limits
Public
Copyright
Other

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