Accession Number : AD0619172

Title :   SEASONAL ATMOSPHERIC ATTENUATION MEASUREMENTS AT 3.27 CM WAVELENGTH.

Descriptive Note : Environmental research papers,

Corporate Author : AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s) : Castelli,John P.

Report Date : JUN 1965

Pagination or Media Count : 28

Abstract : Atmospheric attenuation measurements have been made for four seasons during 1962 and 1963 at Sagamore Hill, Hamilton, Massachusetts, at a wavelength of 3.27 cm. A definite seasonal trend was noted with the greatest attenuation observed during the winter when an average vertical attenuation of 0.13 db was measured. The trend seems to be well correlated with seasonal averages of surface barometric pressure. Summer attenuation in 1964 is compared with similar measurements made in 1946 in the same geographical area. (Author)

Descriptors :   (*ATMOSPHERES, ATTENUATION), (*RADIO ASTRONOMY, MICROWAVES), SUN, EXTRATERRESTRIAL RADIO WAVES, ABSORPTION, MEASUREMENT, RADIOMETERS, GEOPHYSICS, METEOROLOGICAL PHENOMENA, TABLES(DATA), ATMOSPHERIC SOUNDING

Distribution Statement : APPROVED FOR PUBLIC RELEASE