NDLI: An improved model for the earth's gravity field

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An improved model for the earth's gravity field

Content Provider	NASA Technical Reports Server (NTRS)
Author	Shum, C. K. Ries, J. C. Tapley, B. D. Yuan, D. N. Schutz, B. E.
Copyright Year	1989
Description	An improved model for the Earth's gravity field, TEG-1, was determined using data sets from fourteen satellites, spanning the inclination ranges from 15 to 115 deg, and global surface gravity anomaly data. The satellite measurements include laser ranging data, Doppler range-rate data, and satellite-to-ocean radar altimeter data measurements, which include the direct height measurement and the differenced measurements at ground track crossings (crossover measurements). Also determined was another gravity field model, TEG-1S, which included all the data sets in TEG-1 with the exception of direct altimeter data. The effort has included an intense scrutiny of the gravity field solution methodology. The estimated parameters included geopotential coefficients complete to degree and order 50 with selected higher order coefficients, ocean and solid Earth tide parameters, Doppler tracking station coordinates and the quasi-stationary sea surface topography. Extensive error analysis and calibration of the formal covariance matrix indicate that the gravity field model is a significant improvement over previous models and can be used for general applications in geodesy.
File Size	283698
Page Count	4
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19900011199
Archival Resource Key	ark:/13960/t6935r084
Language	English
Publisher Date	1989-06-01
Access Restriction	Open
Subject Keyword	Geophysics Geodesy Gravitational Fields Satellite Observation Oceanographic Parameters Tides Data Bases Gravity Anomalies Satellite Altimetry Geopotential Mathematical Models Doppler Radar Range and Range Rate Tracking Laser Range Finders Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Article

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