Results 161 to 170 of about 3,111 (209)
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IEEE Transactions on Geoscience and Remote Sensing, 1993
For use in oceanographic applications the geoid is ideally needed to a high accuracy and to a high resolution. In 1979 the cumulative geoid undulation error to spherical harmonic degree 20 was +or-1.4 m for the GEM10 potential coefficient model. Today the corresponding value has been reduced to +or-25 cm for GEM-T3 or +or-11 cm for the OSU91A model ...
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For use in oceanographic applications the geoid is ideally needed to a high accuracy and to a high resolution. In 1979 the cumulative geoid undulation error to spherical harmonic degree 20 was +or-1.4 m for the GEM10 potential coefficient model. Today the corresponding value has been reduced to +or-25 cm for GEM-T3 or +or-11 cm for the OSU91A model ...
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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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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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2020
This chapter discusses the methods used to determine a global representation of the Earth’s gravitational potential from a combination of satellite and terrestrial data. Knowledge of the gravity field is important for many different applications including the following: the calibration of inertial navigation equipment; the computation of geoid ...
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This chapter discusses the methods used to determine a global representation of the Earth’s gravitational potential from a combination of satellite and terrestrial data. Knowledge of the gravity field is important for many different applications including the following: the calibration of inertial navigation equipment; the computation of geoid ...
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How to get an European centimeter geoid (“astro-geological geoid”)
Physics and Chemistry of the Earth, 1996As 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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Wings over the Geoid: Employing Airborne Gravity Data in Geoid Determination
Journal of Land Management and Geomatics EducationThis study focuses on the application of airborne gravity data to develop a regional geoid model of Nepal in the Remove-Compute-Restore (RCR) framework. In the scenario of difficulties presented by the rugged landscape of Nepal and the limited availability of terrestrial gravity data, airborne gravity measurements serve as an effective input dataset ...
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