DocumentCode
1015463
Title
Measurements of atmospheric attenuation near 225 GHz: Correlation with surface water vapor density
Author
Plambeck, R.L.
Author_Institution
University of California, Berkeley, Berkeley, CA, USA
Volume
26
Issue
5
fYear
1978
fDate
9/1/1978 12:00:00 AM
Firstpage
737
Lastpage
738
Abstract
The total attenuation through the earth\´s atmosphere for radio waves at frequencies near 225 GHz has been monitored for several weeks from a 1-km elevation site. The zenith attenuation at these frequencies was found to be correlated with the ground level water vapor content of the atmosphere; the correlation is consistent with the relation 
(db)= 
( 
m-3of water) predicted for clear sky conditions by theory, assuming a 2-km scale height for water in the atmosphere.
(db)= ( m-3of water) predicted for clear sky conditions by theory, assuming a 2-km scale height for water in the atmosphere.Keywords
Millimeter-wave radio propagation meteorological factors; Antenna measurements; Atmosphere; Atmospheric measurements; Attenuation measurement; Density measurement; Electromagnetic wave absorption; Extraterrestrial measurements; Frequency measurement; Radio astronomy; Sun;
fLanguage
English
Journal_Title
Antennas and Propagation, IEEE Transactions on
Publisher
ieee
ISSN
0018-926X
Type
jour
DOI
10.1109/TAP.1978.1141923
Filename
1141923
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