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
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
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
core +1 more source
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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Ocean gravity and geoid determination [PDF]
Gravity anomalies have been recovered in the North Atlantic and the Indian Ocean regions. Comparisons of 63 2 deg x 2 deg mean free air gravity anomalies recovered in the North Atlantic area and 24 5 deg x 5 deg mean free air gravity anomalies in the ...
Brown, R. D. +3 more
core +1 more source
Accuracy of the determination of mean anomalies and mean geoid undulations from a satellite gravity field mapping mission [PDF]
Improved knowledge of the Earth's gravity field was obtained from new and improved satellite measurements such as satellite to satellite tracking and gradiometry.
Jekeli, C., Rapp, R. H.
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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
core +1 more source
Enhanced Vertical Navigation Using Barometric Measurements. [PDF]
Sensors (Basel), 2022 Narayanan S, Osechas O.
europepmc +1 more source
Reducing the error of geoid undulation computations by modifying Stokes' function [PDF]
The truncation theory as it pertains to the calculation of geoid undulations based on Stokes' integral, but from limited gravity data, is reexamined. Specifically, the improved procedures of Molodenskii et al.
Jekeli, C.
core +1 more source
Calibration and evaluation of Skylab altimetry for geodetic determination of the geoid [PDF]
The author has identified the following significant results. The Skylab altimeter experiment has proven the capability of the altimeter for measurement of sea surface topography.
Fubara, D. M. +3 more
core +4 more sources