A Relationship Between SSM/I Brightness Temperatures and Earth Surface Emissivities at 91 and 150 GHz

Abstract

The Special Sensor Microwave Water Vapor Sounder (SSM/T-2) is onboard the Defense Meteorological Satellite Program (DMSP) F-11 satellite and consists of five channels: three located along the 183 GHz water vapor absorption line, one on the wing of this line at 150 GHz, and a 91 GHz window channel. Also onboard this satellite is the Special Sensor Microwave/Imager (SSM/I) which has seven channels - 19, 37, and 85 GHz vertical and horizontal polarizations, and 22 GHz vertical polarization. Estimation of surface emissivities at 91 and 150 GHz is a key component in the SSM/T-2 water vapor profile retrieval algorithm. This study relates 91 and 150 GHz emissivity values, retrieved from a radiative transfer model using collocated SSM/T-2 brightness temperature measurements and radiosonde-measured atmospheric profiles, to SSM/T-2 and SSM/I brightness temperature measurements. Results suggest the possible use of SSM/I brightness temperature measurements for estimation of surface emissivities at 91 and 150 GHz.

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Document Details

Document Type
Technical Report
Publication Date
Jul 20, 1994
Accession Number
ADA283083

Entities

People

  • Gerald W. Felde

Organizations

  • Phillips Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Absorption
  • Algorithms
  • Artificial Satellites
  • Brightness
  • Coefficients
  • Correlation Analysis
  • Data Analysis
  • Data Sets
  • Frequency
  • Measurement
  • Meteorological Satellites
  • Microwaves
  • Oceanography
  • Radiation
  • Radiative Transfer
  • Radiosondes
  • Water Vapor

Fields of Study

  • Environmental science

Readers

  • Atmospheric Remote Sensing.

Technology Areas

  • Space