Measurements of Atmospheric and Oceanic Parameters Affecting Brightness Temperature in Passive Microwave Radiometry

Abstract

Long Term Goal: We wish to improve our understanding of the measurement of brightness temperature and its relation to wind speed and direction and/or wind stress vector. Scientific Objectives: Examine space/time variability of directional properties of surface waves and wind stress and its relation to brightness temperature. 2. Investigate changes in emissivity with respect to surface roughness, foam coverage and breaking. 3. Explore how other environmental parameters such as rain, water vapor, salinity, temperature affect brightness temperature. 4. Explore scattering issues due to large-scale waves as a function of incidence angle, Bragg type scattering and sea foam. 5. Examine how wind direction signals could be extracted in the microwave brightness temperature measurements over a wide range of frequencies, incidence angles and wind speeds.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2001
Accession Number
ADA623783

Entities

People

  • Eugene A. Terray
  • Hans C. Graber
  • Mark A. Donelan
  • William M. Drennan

Organizations

  • Rosenstiel School of Marine, Atmospheric, and Earth Science

Tags

DTIC Thesaurus Topics

  • Airborne
  • Artificial Satellites
  • Brightness
  • Buoys
  • Directional
  • Frequency
  • Measurement
  • Microwaves
  • Physics
  • Radiometry
  • Scattering
  • Stresses
  • Surface Roughness
  • Surface Waves
  • Waves
  • Wind Direction
  • Wind Stress

Fields of Study

  • Environmental science

Readers

  • Acoustical Oceanography.
  • Atmospheric Remote Sensing.
  • Fluid Dynamics.

Technology Areas

  • Space