Processing of Global Area Coverage (GAC) Data of the TIROS-N/NOAA Series Polar Orbiters.

Abstract

Global Area Coverage (GAC) data is stored data of the AVHRR instrument. The original HRPT resolution of 1.1 km is reduced to about 3.3 by 4.0 km. There are 120 scans per minute with 409 pixels each. The raw data are available from the National Climatic Data Center as tape copies that generally contain calibration information. In order to process the data on the SPADS, the data must be unpacked and written to a disk file in a specified format. Then, the image can be transformed in either Mercator or Polar Stereographic Projection, and the geographical background may be added.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 1984
Accession Number
ADA148992

Entities

People

  • V. Treis

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Area Coverage
  • Computer Programs
  • Computers
  • Coordinate Systems
  • Data Centers
  • Data Processing
  • Databases
  • Equations
  • Geography
  • Grids
  • Latitude
  • Longitude
  • Northern Hemisphere
  • Research Facilities
  • Sea Surface Temperature
  • Southern Hemisphere
  • Surface Temperature

Fields of Study

  • Environmental science

Readers

  • Atmospheric Science/Meteorology
  • Computer Science.
  • Image Processing and Computer Vision.

Technology Areas

  • Space