Accession Number : AD0712934

Title :   ESTIMATED PROBABILITIES OF PATH-CUMULATIVE RAIN INTENSITY FOR PATHS OF 10 AND 22 NAUTICAL MILES IN HIGH RAIN-RATE AREAS.

Descriptive Note : Final rept.,

Corporate Author : ENVIRONMENTAL TECHNICAL APPLICATIONS CENTER (AIR FORCE) WASHINGTON D C

Personal Author(s) : Beals,Gordon A.

Report Date : JUN 1970

Pagination or Media Count : 34

Abstract : Curves are presented which show number of minutes per year that the product, rain rate times distance, exceeds any particular value on a 10-nautical mile path and a 22-nautical mile path in southern Florida and in coastal Burma. The curves were derived from fairly reliable estimates of the number of minutes per year that given point-rainfall rates occur and a hypothetical model of the probability of path-cumulative rainfall for various point-rainfall rates. The results are applicable to calculations of rain attenuation of microwave signals in areas having large annual rainfall. This application is illustrated in an appendix. (Author)

Descriptors :   (*RAINFALL, INTENSITY), (*NAVIGATIONAL AIDS, INSTRUMENT LANDINGS), (*RADIO WAVES, ATTENUATION), PROBABILITY, MATHEMATICAL MODELS, HIGH FREQUENCY, STATISTICAL DATA, AIRCRAFT LANDINGS, MICROWAVES, STORMS

Subject Categories : Meteorology
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE