Short Arc Reduction of Radar Altimetry Computer Program.

Abstract

The Air Force Geophysics Laboratory computer program SARRA(Short Arc Reduction of Radar Altimetry) has been used for geoid determination with altimetric observations from the GEOS-3 satellite. An important feature of SARRA is the simultaneous recovery of the orbit parameters and the surface coefficients as defined by covariance function weights. Orbits good to approximately 20 meters are adequate for precise geoid determinations by virture of the orbital adjustment in the reductions. Altimetric data over a portion of the North Atlantic Ocean have been processed to derive the regional geoid and gravity field. Analyses of altimeter residuals resulting from the short arc adjustment show that the residuals can be used to define the neglected higher order geoidal undulations with high fidelity and continuity. (Author)

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Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1978
Accession Number
ADA053067

Entities

People

  • George Hadgigeorge
  • Jerry Trotter

Organizations

  • Air Force Research Laboratory

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Air Force
  • Altimeters
  • Atlantic Ocean
  • Computational Science
  • Computer Programs
  • Computer Simulations
  • Computers
  • Data Processing
  • Data Reduction
  • Databases
  • Grids
  • Measurement
  • North Atlantic Ocean
  • Puerto Rico
  • Radar Altimeters
  • Simulations

Readers

  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space
  • Space - Orbital Debris