Results 181 to 190 of about 6,935 (225)

Topographic effects by the Stokes-Helmert method of geoid and quasi-geoid determinations

Journal of Geodesy, 2000
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Geoid 18

2020
NOAA technical report NOS NGS ...
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Traces of impact craters in the geoid

Tectonophysics, 1992
A 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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How to get an European centimeter geoid (“astro-geological geoid”)

Physics and Chemistry of the Earth, 1996
As shown by projects in hilly and alpine regions, astro-geoid solutions are more effective than gravimetry - but many countries do not utilize this fact. Both methods give accuracies of < 5cm/100km and are improved remarkably by subsurface density models (smoothing of the gravity field).
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Using a ‘GPS/MSL Geoid’ to Test Geoid Models in the UK

2002
GPS 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, A. H. Dodson, N. T. Penna, T. F. Baker   +3 more
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Colorado geoid computation experiment: overview and summary

Journal of Geodesy, 2021
Yan Ming Wang, Laura Sanchez, Jonas Ågren   +2 more
exaly  

The effect of anomalous global lateral topographic density on the geoid-to-quasigeoid separation

Journal of Geodesy, 2021
Robert Tenzer, Wenjin Chen, Samurdhika Rathnayake   +2 more
exaly  

Improving accuracy of local geoid model using machine learning approaches and residuals of GPS/levelling geoid height

Survey Review, 2022
Mosbeh R Kaloop, Samui Pijush, Mostafa Rabah   +2 more
exaly  

The geoid

Earth-Science Reviews, 1972
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Comparison of Champ and GRACE geoid models with Croatian HRG2000 geoid

2004
Latest Croatian geoid solution HRG2000 and CHAMP and GRACE global geopotential geoid models EIGEN-2 (CHAMP), EIGEN-01S (GRACE), GGM01S (GRACE) and GGM01C (GRACE) are compared. Orientation and long wave structure of the HRG2000 geoid is judged using CHAMP and GRACE models, while HRG2000 is used to judge the resolution of the global CHAMP and GRACE ...
Hećimović, Željko, Bašić, Tomislav
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