Preliminary Eastern Indian Ocean Geoid from GEOS-3 Data,

Abstract

Ninety-four passes of GEOS-3 short pulse radar altimetry data taken in July-August 1975 over the eastern Indian Ocean (by the DoD telemetry station at Perth, Australia) have been analyzed to arrive at a preliminary ocean geoid. The self consistency of the data at track intersections has a mean geoid height difference of 75 cm with a standard deviation of 2.3 meters with normal processing. Application of bias removal techniques reduced the mean geoid height difference to 9 cm and improves the self consistency of the results to a standard deviation of less than 1 m. A comparison of the GEOS-3 Geoid is made with the NASA Marsh and Chang 1976 Geoid. The GEOS-3 Geoid correlates well with the larger features of the local bottom topography. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1977
Accession Number
ADA043788

Entities

People

  • Alan C. Chappell
  • Samuel L. Smith Iii

Organizations

  • Naval Surface Warfare Center Dahlgren Division

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Accuracy
  • Altimeters
  • Altimetry
  • Artificial Satellites
  • Australia
  • Ephemerides
  • Geography
  • Height
  • Indian Ocean
  • Measurement
  • Oceans
  • Orbits
  • Radar Altimeters
  • Short Wavelengths
  • Telemetry
  • Three Dimensional
  • Topography

Fields of Study

  • Environmental science

Readers

  • Oceanography.
  • Space Exploration and Orbital Mechanics.