NDLI: Altimeter measurements for the determination of the earth's gravity field

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Altimeter measurements for the determination of the earth's gravity field

Content Provider	NASA Technical Reports Server (NTRS)
Author	Shum, C. K. Tapley, B. D. Schutz, B. E.
Copyright Year	1987
Description	The ability of satellite-borne radar altimeter data to measure the global ocean surface with high precision and dense spatial coverage provides a unique tool for the mapping of the Earth's gravity field and its geoid. The altimeter crossover measurements, created by differencing direct altimeter measurements at the subsatellite points where the orbit ground tracks intersect, have the distinct advantage of eliminating geoid error and other nontemporal or long period oceanographic features. In the 1990's, the joint U.S./French TOPEX/POSEIDON mission and the European Space Agency's ERS-1 mission will carry radar altimeter instruments capable of global ocean mapping with high precision. This investigation aims at the development and application of dynamically consistent direct altimeter and altimeter crossover measurement models to the simultaneous mapping of the Earth's gravity field and its geoid, the ocean tides and the quasi-stationary component of the dynamic sea surface topography. Altimeter data collected by SEASAT, GEOS-3, and GEOSAT are used for the investigation.
File Size	505032
Page Count	15
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19870013600
Archival Resource Key	ark:/13960/t22c3wx8m
Language	English
Publisher Date	1987-04-29
Access Restriction	Open
Subject Keyword	Geophysics Geosat Satellites Satellite Altimetry Earth Gravitation Ground Tracks Geodetic Surveys Gravitational Fields Orbits Mapping Ocean Surface Geoids Remote Sensing Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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