Results 141 to 150 of about 688 (193)
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Comparison of gravimetric geoids with Geos 3 altimetric geoid
Journal of Geophysical Research: Solid Earth, 1979By means of 1° × 1° gravimetric geoids in the North Atlantic, Northwest Pacific, and Indian oceans, comparisons have been made with Geos 3 radar altimeter estimates of geoid height. Most commonly, there are constant offsets and long‐wavelength discrepancies between the two data sets; there are many probable causes, including radial orbit error, scale ...
Michael E. Chapman, Manik Talwani
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2006
At the end of 2003, a preliminary geoid of Serbia was determined by fitting the gravimetric geoid into undulations determined by GPS and leveling (GPS/dh) techniques. The gravimetric geoid was determined using data from regional gravimetric survey in Serbia (13,326 points) by applying collocation within the remove-restore method, and undulations GPS/dh
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At the end of 2003, a preliminary geoid of Serbia was determined by fitting the gravimetric geoid into undulations determined by GPS and leveling (GPS/dh) techniques. The gravimetric geoid was determined using data from regional gravimetric survey in Serbia (13,326 points) by applying collocation within the remove-restore method, and undulations GPS/dh
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The deviations of the sea surface from the geoid and their effect on geoid computation
Bulletin Géodésique, 1977The effects of the deviations of sea surface topography from the geoid are estimated for terrestrial geoid computations as obtained from Stokes’ formula. The results are based on an equal-area expansion of Lisitzin's sea surface topography data in a spherical harmonic series.
Jürgen Brennecke, Erwin Groten
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Quasigeoid-to-geoid determination by EGM08
Earth Science Informatics, 2012We present a method to estimate the difference between quasigeoid and geoid heights globally from the Earth Gravitational Model EGM08 and a related topographic model. The numerical computations with the standard topographic density of 2.67 g/cm3 show that the maximum and minimum of the separations are estimated to 5.47 m and −0.11 m on the Tibet ...
Lars E. Sjöberg, Mohammad Bagherbandi
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Eos, Transactions American Geophysical Union, 1957
The author gives a summary of the preparatory work, collection of the needed gravity material, reduction method used, the gravity anomaly maps of different types needed, and the details of the method of computation of the geoid. Using the available materials, 6679 squares of 1° X 1°, four times larger than was available in 1928, several new gravity ...
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The author gives a summary of the preparatory work, collection of the needed gravity material, reduction method used, the gravity anomaly maps of different types needed, and the details of the method of computation of the geoid. Using the available materials, 6679 squares of 1° X 1°, four times larger than was available in 1928, several new gravity ...
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Topographic effects by the Stokes-Helmert method of geoid and quasi-geoid determinations
Journal of Geodesy, 2000zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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A New Detailed Geoid for Latvia
1997A new geoid of Latvia, computed from available gravity data and newly digitised data, as well as gravity data derived from ERS-1 geodetic mission data in the Baltic Sea is described. Computations were carried out by spherical FFT techniques on a 1.5′ × 3.0′ grid.
Jānis Kaminskis, Forsberg, Rene
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Traces of impact craters in the geoid
Tectonophysics, 1992A well-known method for studying the impact craters on the Earth’s surface is gravity measurements. For practical studies, the gravity measured on the surface must first be reduced to a particular standard. In a simpIe procedure, after subtracting the latitude-dependent normal gravity, the topographic masses outside the geoid are either completely ...
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Using a ‘GPS/MSL Geoid’ to Test Geoid Models in the UK
2002GPS has been used to compute the height of mean sea level (MSL) above a reference ellipsoid at a network of 14 tide gauge sites, several hundred kilometres apart in the UK. The resultant ‘GPS/MSL geoid’ heights have then been compared to values taken from a global, an European and a national geoid model.
R. M. Bingley +3 more
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