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
Link To Document :
