Accession Number:

AD0667194

Title:

REMOTE SENSING OF RAIN BY RADAR,

Descriptive Note:

Corporate Author:

AEROSPACE CORP EL SEGUNDO CALIF EL SEGUNDO TECHNICAL OPERATIONS

Personal Author(s):

Report Date:

1968-01-01

Pagination or Media Count:

40.0

Abstract:

Attenuation by rain imposes severe limitations on short-wavelength meteorological radars investigating rain. This is true whether the radar is ground based and located within the rain medium or remote from it. This paper analyzes the combined effects of scattering and attenuation for remotely located rain radars on such quantities as sensitivity to rainfall rate, measurement of rainfall rate distribution in range for short-pulse radars, clutter, and discrimination with a ground or sea background. The normalized radar cross section is derived as a function of wavelength and rainfall rate for two different rain models, as a convenient means of comparison. It is concluded that the one-way attenuation through the rain medium must be less than a few decibels otherwise the radar will not be sensitive to rainfall rate. This result is unaffected by the choice of rain model. Author

Subject Categories:

  • Meteorology
  • Active and Passive Radar Detection and Equipment
  • Unmanned Spacecraft

Distribution Statement:

APPROVED FOR PUBLIC RELEASE