Short Arc Reduction of Radar Altimetry Computer Program.

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 coeffici...

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Bibliographic Details
Main Authors: Hadgigeorge,George, Trotter,Jerry
Other Authors: AIR FORCE GEOPHYSICS LAB HANSCOM AFB MASS
Format: Text
Language:English
Published: 1978
Subjects:
Geodesy
Computer Programming and Software
Active & Passive Radar Detection & Equipment
Unmanned Spacecraft
Spacecraft Trajectories and Reentry
*RADAR TRACKING
*GEODETIC SATELLITES
*SATELLITE TRACKING SYSTEMS
COMPUTER PROGRAMS
ORBITS
GRAVITY
ALTIMETERS
GEOIDS
*SARRA(Short Arc Reduction of Radar Altimetry)
GEOS-3 satellite
Radar altimetry
North Atlantic
Online Access:http://www.dtic.mil/docs/citations/ADA053067
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA053067
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Summary: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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