Results 1 to 10 of about 187 (133)
Geoid precision from limited‐area gravimetric surveys
Geodesy and Cartography, 2012 We derive a number of rough theoretical estimates for the precision of a geoid model computed from a local gravimetric survey combined with global reference model information. Example calculations for Finland and Estonia are presented.
Martin Vermeer, Karin Kollo
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Preliminary Study of the Gravimetric Local Geoid Model in Jordan:
Annals of Geophysics, 2007 Recently, there is an increased interest in studying and defining the Local and Regional Geoid Model worldwide, due to its importance in geodetic and geophysics applications.
A. Al-Zoubi, O. Al-Bayari
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Remote Sensing, 2023 A long-wavelength geoidal geometry characterizes the most pronounced features of the Indian Ocean geoid low and the West Pacific and North Atlantic geoid highs.
Robert Tenzer, Wenjin Chen
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A High-Resolution Gravimetric Geoid Model for Kuwait Using the Least-Squares Collocation
Frontiers in Earth Science, 2022 A new gravimetric geoid model, the KW-FLGM2021, is developed for Kuwait in this study. This new geoid model is driven by a combination of the XGM2019e-combined global geopotential model (GGM), terrestrial gravity, and the SRTM 3 global digital elevation ...
Hamad Al-Ajami +4 more
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GRAVIMETRIC GEOID MODELLING OVER PENINSULAR MALAYSIA USING TWO DIFFERENT GRIDDING APPROACHES FOR COMBINING FREE AIR ANOMALY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2019 We investigate the use of the KTH Method to compute gravimetric geoid models of Malaysian Peninsular and the effect of two differing strategies to combine and interpolate terrestrial, marine DTU17 free air gravity anomaly data at regular grid nodes ...
M. F. Pa’suya +7 more
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On the construction of gravimetric geoid model on the Lviv region area
Геофизический журнал, 2022 Baltic Height System 1977, currently used in Ukraine, the starting point of which is the zero of the Kronstadttide-gauge, isobsoletedue to the great distance from the zero-point of the reference height and the difficulty of adapting satellite methods of
F. Zablotskyi +2 more
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Global detailed gravimetric geoid [PDF]
Marine Geodesy, 1979 A 1 ° × 1 ° global detailed gravimetric geoid has been computed, using a combination of the Goddard Space Flight Center (GSFC) GEM‐8 potential field model and a set of 38,406 1° × 1° mean surface free air anomalies. Numerous short wavelength features are shown in the geoid contour map, e.g., the steep gradients associated with oceanic trenches ...
James G. Marsh, Edward S. Chang
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Geoid model validation and topographic bias
Journal of Geodetic Science, 2022 Recently a number of geoid campaigns were performed to verify different types of geoid and quasigeoid modeling techniques. Typically, GNSS-leveling was employed as an independent method, but in some cases zenith camera astronomic deflection data were ...
Sjöberg Lars E.
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Two alternative techniques for fitting the gravimetric geoid for Egypt
Contributions to Geophysics and Geodesy, 2023 In this paper, two proposed geoid fitting techniques for Egypt's gravimetrically determined geoid and Global Positioning System GPS/levelling-derived geoid are introduced. First, any errors in the available GPS stations are ruled out.
Hussein ABD-ELMOTAAL, Atef MAKHLOOF
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Gravimetric geoid in the Northwest Pacific Ocean [PDF]
Geophysical Journal International, 1977 A total of 3708 1 x 1 deg free-air gravity anomaly averages have been used to construct a new 1 x 1 deg gravimetric geoid of the Northwest Pacific Ocean. The 1 x 1 deg averages are based on a compilation of 147,000 surface ship and pendulum gravity measurements.
Watts, A, Leeds, A
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