Results 1 to 10 of about 4,394 (252)

True Geopotential in Meteorology

, 2021
Geopotential in meteorology is the same as gravity potential in geodesy but with the opposite sign.
Peter C. Chu
openaire   +2 more sources

Geopotential Model of Earth - Approximation of Earth Shape, Geopotential Model Testing Methods [PDF]

Communications, 2001
Stokes' geodynamic parameters in the expansion of the gravity potential of the Earth serve for a mathematical and physical description of an outer gravity field of the Earth, the shape and the size of the Earth.
Robert Tenzer
doaj   +2 more sources

Along-Track Geopotential Difference and Deflection of the Vertical from GRACE Range Rate: Use of GEOGRACE

Terrestrial, Atmospheric and Oceanic Sciences, 2016
We present a theory and numerical algorithm to directly determine the time-varying along-track geopotential difference and deflection of the vertical at the Gravity Recovery and Climate Experiment (GRACE) satellite altitude.
GRACE, Geopotential difference, K-band ranging, Mass anomaly, Regional gravity solution   +4 more
doaj   +2 more sources

Global Geopotential Models assessment in Ecuador based on geoid heights and geopotential values

Journal of Geodetic Science, 2023
Since the 1960s, the analysis of disturbed satellite orbits to infer Earth’s gravity field functionals has been an important element in determining the Earth’s gravitational field. The long wavelengths of the gravitational field are recovered through the
Carrión José, Flores Fredy, Rodríguez Freddy, Pozo Miguel   +3 more
doaj   +2 more sources

Evaluation of aerosol loading and its relationship with geopotential height in Nigeria’s Guinea Coast [PDF]

Bulletin of the National Research Centre
Climate variability and atmospheric changes significantly affect weather patterns and human activities. Aerosols impact the Earth's climate by influencing cloud formation, scattering radiation, and cooling the planet. However, aerosols, like black carbon,
Onyinyechi Caroline Ibe, Okechukwu Kelechi Nwofor, Ugochukwu Kingsley Okoro   +2 more
doaj   +2 more sources

Is the geopotential directly measurable [PDF]

Geodetski Glasnik, 2016
It has been pointed out by the great Swedish geodesist Arne Bjerhammar and others around1985 that it is possible to replace the classical method of spirit leveling for determining differences of the geopotential by a much more direct and elegant method ...
Helmut Moritz
doaj   +2 more sources

Estimation of vertical datum offset for the South African vertical datum, in relation to the international height reference system [PDF]

Geodetski Vestnik, 2021
The vertical offset and the geopotential value over South Africa is estimated on the four fundamental benchmarks in relation to the international height reference system (IHRS).
Matthews Siphiwe Mphuthi, Patroba Achola Odera   +1 more
doaj   +1 more source

Test of Determining Geopotential Difference between Two Sites at Wuhan Based on Optical Clocks’ Frequency Comparisons

Remote Sensing, 2022
Applications of optical clocks in physical geodesy for determining geopotential are of increasing interest to scientists as the accuracy of optical clocks improves and the clock size becomes more and more compact.
Anh The Hoang, Ziyu Shen, Kuangchao Wu, An Ning, Wenbin Shen   +4 more
doaj   +1 more source

Measuring Height Difference Using Two-Way Satellite Time and Frequency Transfer

Remote Sensing, 2022
According to general relativity theory (GRT), the clock at a position with lower geopotential ticks slower than an identical one at a position with higher geopotential.
Peng Cheng, Wenbin Shen, Xiao Sun, Chenghui Cai, Kuangchao Wu, Ziyu Shen   +5 more
doaj   +1 more source

Unifying the Regional Height System Using Optic-Fiber Clock Network: A Simulation Test for Southeast Asia

IEEE Access, 2023
Orthometric height datum systems are critical in the geodetic community. Nonetheless, individual nations or local regions maintain their distinct height systems.
Anh The Hoang, Ziyu Shen, Wen-Bin Shen
doaj   +1 more source