Consideration of permanent tidal deformation in the orbit determination and data analysis for the Topex/Poseidon mission [PDF]
The effects of the permanent tidal effects of the Sun and Moon with specific applications to satellite altimeter data reduction are reviewed in the context of a consistent definition of geoid undulations.
Klosko, Steven M. +4 more
core +1 more source
Journal of Geophysical Research: Solid Earth, Volume 129, Issue 5, May 2024.Abstract De‐aliasing products are used in the estimation process of satellite‐based gravity field computation to reduce errors from high‐frequency mass variations that alias into monthly gravity fields. The latest official product is AOD1B RL07 and describes non‐tidal atmosphere and oceanic mass variations at 3‐hourly resolution.
Anne Springer +5 more
wiley +1 more source
Geoid undulations and gravity anomalies over the Aral Sea, the Black Sea and the Caspian Sea from a combined GEOS-3/SEASAT/GEOSAT altimeter data set [PDF]
Satellite-based altimetric data taken by GOES-3, SEASAT, and GEOSAT over the Aral Sea, the Black Sea, and the Caspian Sea are analyzed and a least squares collocation technique is used to predict the geoid undulations on a 0.25x0.25 deg.
Au, Andrew Y. +2 more
core +1 more source
Height determination using GPS data, local geoid and global geopotential models [PDF]
, 1995 Orthometric heights are normally derived using the spirit levelling. This requires the spirit level equipment to be set up from point 10 point along a levelling line which is a time consuming and tedious task.
Abdullah, Khairul Anuar
core
AppliedMathThe G-modified Helmholtz equation is a partial differential equation that enables us to express gravity intensity g as a series of spherical harmonics having radial distance r in irrational powers.
Gerassimos Manoussakis
doaj +1 more source
Power spectra of geoid undulations [PDF]
Data from spacecraft altimeters are expected to contribute to an improved determination of the marine geoid. To better define altimeter system design requirements for geoid recovery, amplitudes of geoid undulations at short wavelengths were examined ...
Brown, R. D.
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Utilisation of Fast Fourier Transform and Least-squares Modification of Stokes formula to compile approximate geoid heights over Khartoum State: Sudan [PDF]
, 2016 We use Fast Fourier Transform (FFT) and Least-squares modification (LSM) of Stokes formula to compute the approximate geoid over Khartoum State in Sudan.
Abdalla, A, Green, CM
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The Ohio State 1991 geopotential and sea surface topography harmonic coefficient models [PDF]
The computation is described of a geopotential model to deg 360, a sea surface topography model to deg 10/15, and adjusted Geosat orbits for the first year of the exact repeat mission (ERM).
Pavlis, Nikolaos K. +2 more
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Analysis of altimetry over inland seas [PDF]
Satellite-based altimetric data taken by GEOS-3 and SEASAT over the Black Sea and Caspian Sea are analyzed and a least squares collocation technique is used to predict the geoid undulation on a .25-degree by .25-degree grid and to transform these geoid ...
Au, A. Y., Brown, R. D., Welker, J. E.
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Methods for the computation of detailed geoids and their accuracy [PDF]
Two methods for the computation of geoid undulations using potential coefficients and 1 deg x 1 deg terrestrial anomaly data are examined. It was found that both methods give the same final result but that one method allows a more simplified error ...
Rapp, R. H., Rummel, R.
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