The Relationship between Marine Aerosol Optical Depth and Satellite-Sensed Sea Surface Temperature.

Abstract

Multichannel sea surface temperatures (MCSST) computed from NOAA 7 AVHRR channels 4 and 5 are compared to sea surface temperatures measured by an aircraft radiometer (PRT-5). This data set was collected in Fall, 1982 off the southern Californian coast. The MCSST was warmer by 0.82 degrees in the area aerosol effects did not offset increasing radiance due to vertically warming air temperature. As aerosols were able to offset the temperature contribution to radiance, the difference between MCSST and PRT-5 SST measurements decreased. Aerosol effects on infrared radiance were qualitatively examined using an atmospheric transmittance model (LOWTRAN 6). Comparing the model and PRT-5 results indicates that below the marine boundary layer, high aerosol extinction caused significant cooling. Above the boundary layer, aerosols scattered and emitted energy, generally decreasing the measured radiance. The emission moderated the decrease by increasing the radiance slightly.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1986
Accession Number
ADA174337

Entities

People

  • Susan K. Runco

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Sensors
  • Space

DTIC Thesaurus Topics

  • Air Temperature
  • Altitude
  • Boundary Layer
  • Coefficients
  • Data Analysis
  • Equations
  • Humidity
  • Measurement
  • Meteorological Satellites
  • Meteorology
  • Particles
  • Plastic Explosives
  • Research Facilities
  • Scattering
  • Sea Surface Temperature
  • Surface Temperature
  • Water Vapor

Fields of Study

  • Environmental science

Readers

  • Atmospheric Remote Sensing.
  • Exercise and Sports Science.

Technology Areas

  • Space