Microwave Attenuation in Rain; A Dual Wavelength Radar Study

Abstract

Microwave attenuation in rain at C-band. observed in radar data from Alberta. Canada. has been assessed by means of two different estimators: one employing AD? measured simultaneously by an S-band radar and the other a comparison of synchronized S- and C-band reflectivity measurements. While good agreement between the two has been found in some cases. in others the second method gave a larger estimate than the first by up to a factor of two. It is possible that the K(DP) method is underestimating the attenuation due to the assumption of a Marshall-Palmer drop size distribution which does not accurately enough represent the true drop size distribution present.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1991
Accession Number
ADA359695

Entities

People

  • A. R. Holt
  • V. J. Brown

Organizations

  • University of Essex

Tags

DTIC Thesaurus Topics

  • Agreements
  • Attenuation
  • Backscattering
  • C Band
  • Circular Polarization
  • Computing-Related Activities
  • Drops
  • Equations
  • Forward Scattering
  • Linear Polarization
  • Mathematics
  • Microwaves
  • Phase Shift
  • Polarization
  • Rain
  • Reflectivity
  • Scattering

Fields of Study

  • Environmental science

Readers

  • Aerospace Test and Evaluation
  • Approximation Theory.
  • Atmospheric Remote Sensing.