The Multiple Scattering Contributions in the Strong Fluctuation Theory to the Microwave Brightness Temperature

Abstract

This study accounts for the contribution of multiple scattering to microwave brightness temperature of sea ice and its snow cover. The application of the distorted Born approximation in conjunction with the strong fluctuation theory has led to calculated values for brightness temperatures in agreement with measurements from sea ice and its snow cover at frequencies below 37 GHz. However, at frequencies above 37 GHz, the distorted Born approximation overestimates the brightness temperature. This is due to the fact that the distorted Born approximation accounts only for the singly scattered field. Physical and mathematical arguments showed that inclusion of higher order multiple scattering would lead to more reasonable values for the brightness temperature at higher frequencies where the multiple scattering is expected to be dominant.

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Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1994
Accession Number
ADA277721

Entities

People

  • Alex Stogryn
  • Mostafa A. Karam

Organizations

  • Aerojet Rocketdyne Holdings

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms
  • Space

DTIC Thesaurus Topics

  • Angle Of Incidence
  • Born Approximations
  • Computer Programming
  • Computer Programs
  • Computers
  • Dielectric Permittivity
  • Dielectric Properties
  • Differential Equations
  • Digital Computers
  • Equations
  • Frequency
  • Integral Equations
  • Military Research
  • Plastic Explosives
  • Scattering
  • Sea Ice
  • Snow Cover

Fields of Study

  • Physics

Readers

  • Polar and Arctic Studies
  • Pulsed Power and Plasma Physics.
  • Wave Propagation and Nonlinear Chaotic Dynamics.