Results 31 to 40 of about 1,527 (198)
Learning physical geodesy. Application case to geoid undulation computation
Eighth International Conference on Technological Ecosystems for Enhancing Multiculturality, 2020 SI
Rodríguez Gonzálvez, Pablo +2 more
openaire +2 more sources
Gravity-enhanced representation of measured geoid undulations using equivalent sources [PDF]
Geophysical Journal International, 2004 SUMMARY Direct Global Positioning System measurement of geoid undulations on accurately levelled stations, usually tens of kilometres apart, can be interpolated by taking advantage of denser surveys of free-air gravity anomalies covering the same area.
Fernando Guspí +2 more
openaire +1 more source
Implementation of a GPS-RO data processing system for the KIAPS-LETKF data assimilation system [PDF]
Atmospheric Measurement Techniques, 2015 The Korea Institute of Atmospheric Prediction Systems (KIAPS) has been developing a new global numerical weather prediction model and an advanced data assimilation system.
H. Kwon, J.-S. Kang, Y. Jo, J. H. Kang
doaj +1 more source
Geodesy and Cartography, 2020 This study carries out an evaluation of the recent high-degree combined global gravity-field models (EGM2008, EIGEN-6C4, GECO and SGG-UGM-1) over Kenya. The evaluation is conducted using observed geoid undulations (18 data points, mainly in Nairobi area)
Patroba Achola Odera
doaj +1 more source
Pemodelan Geoid Lokal Kota Semarang Berdasarkan Model Geopotensial Globalgrace [PDF]
, 2015 Semarang geoid models determined by gravimetric method. The wavelength components used in the gravimetric method is long-wavelength, medium-wavelength, and short-wavelength.
Awaluddin, M. -. (Moehammad) +2 more
core
Journal of Advances in Modeling Earth Systems, Volume 17, Issue 12, December 2025.Abstract For over 60 years, an approximation involving spherical geopotentials has underlain the representation of gravity in global numerical models of Earth's atmosphere and oceans. This article explores how departures from sphericity can be allowed by assuming spheroidal geopotentials instead. A route to more accurate model formulation is indicated,
Andrew Staniforth, Andy White
wiley +1 more source
Free-Air Gravity Map of Taiwan and Its Applications
Terrestrial, Atmospheric and Oceanic Sciences, 1990 An island-wide gravity in Taiwan was conducted by the Institute of Earth Sciences, Academia Sinica, between 1980 and 1987. The 603 stations at which the gravity values were determined included 308 points in the 500 m or higher mountain range where few ...
Horng-Yuan Yen +4 more
doaj +1 more source
Calving Mechanisms Inferred From Observations of Surface Depressions at Helheim Glacier, Greenland
Journal of Geophysical Research: Earth Surface, Volume 130, Issue 10, October 2025.Abstract Dynamical changes at the termini of tidewater glaciers may trigger sustained acceleration, thinning, and retreat, increasing a glacier's contribution to sea level rise. However, processes at the ice‐ocean interface occur across a range of spatial (cm to km) and temporal (minutes to years) scales, making these processes difficult to capture ...
Michael G. Shahin +7 more
wiley +1 more source
Reference ellipsoid and geoid in chronometric geodesy
Frontiers in Astronomy and Space Sciences, 2016 Chronometric geodesy applies general relativity to study the problem of the shape of celestial bodies including the earth, and their gravitational field.
Sergei M Kopeikin, Sergei M Kopeikin
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 10, October 2025.Abstract Eastern North America has hosted significant historical earthquakes, where seismicity clusters along tectonically inherited structures. Using the spherical finite‐element code CitcomSVE and fully 3D viscosity structure, we model the intraplate stress response to glacial isostatic adjustment (GIA) using ICE‐6G, both with and without low ...
Erin Hightower, Michael Gurnis
wiley +1 more source