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Record Details

Record 43 of 5597
Estimation of total precipitable water and snow cover in Alaska using radiometric measurements near 90 and 183 GHz
Author and Affiliation:
Wang, J. R.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Chang, A. T. C.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Sharma, A. K.(NASA Goddard Space Flight Center, Greenbelt, MD, United States)
Abstract: Radiometric measurements at 90 GHz and three sideband frequencies near the peak water-vapor absorption line of 183.3 GHz were made with the Advanced Microwave Moisture Sounder (AMMS) aboard the NASA DC-8 aircraft over Alaska on November 28, 1989. These measurements show that when the atmosphere is relatively dry the total precipitable water and snow cover could be estimated with high sensitivity. The estimated total precipitable water correlates positively with the aircraft radar altitude. This positive correlation is expected because aircraft radar altitude provides a measure of atmospheric burden above the surface. The surface reflectivities at both 90 and 183 GHz are also estimated which can be used to estimate snow water equivalent.
Publication Date: Jan 01, 1991
Document ID:
19920052621
(Acquired Nov 22, 1995)
Accession Number: 92A35245
Subject Category: EARTH RESOURCES AND REMOTE SENSING
Document Type: Conference Paper
Publication Information: (SEE A92-34851)
Publisher Information: United States
Meeting Information: IGARSS '91: Annual International Geoscience and Remote Sensing Symposium; 11th; June 3-6, 1991; Espoo; Finland
Financial Sponsor: NASA; United States
Organization Source: NASA Goddard Space Flight Center; Greenbelt, MD, United States
Description: 4p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: ATMOSPHERIC MOISTURE; CLOUD COVER; MICROWAVE RADIOMETERS; SNOW COVER; WATER VAPOR; ABSORPTION SPECTRA; ALASKA; LINE SPECTRA; REMOTE SENSING
Imprint And Other Notes: IN: IGARSS '91; Proceedings of the 11th Annual International Geoscience and Remote Sensing Symposium, Espoo, Finland, June 3-6, 1991. Vol. 4 (A92-34851 14-43). New York, Institute of Electrical and Electronics Engineers, Inc., 1991, p. 1961-1964.
Availability Source: Other Sources
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