Results 51 to 60 of about 226 (172)
Considerations on the further improvements of regional geoid modeling over the Baltic countries
Geodesy and Cartography, 2012 This contribution reviews earlier geoid modeling research in the Baltic countries. The most commonly used modifications of Stokes’s formula are discussed. Similarities and differences between stochastic and deterministic modification methods are outlined.
Artu Ellmann
doaj +1 more source
A Petro‐Physical Model for Serpentinized Mantle and Origin of Natural Hydrogen in the Pyrenees
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 1, January 2025.Abstract The relationships between the serpentinized continental mantle in orogens, its geophysical signature at depth and hydrogen seepages are poorly understood. A petro‐physical modeling approach accounting for serpentinization shows that a large domain of serpentinized mantle (1,800 km2) is present in the northern Pyrenees.
Sepideh Pajang +4 more
wiley +1 more source
Short‐Period Mass Variations and the Next Generation Gravity Mission
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 1, January 2025.Abstract At the time that the 2017–2027 Decadal Survey for Earth Science and Applications from Space was released, there was a strong emphasis on reducing the possibility of a substantial gap between the GRACE Follow‐On mission and a successor mission.
P. L. Bender, J. W. Conklin, D. N. Wiese
wiley +1 more source
Imaging Magma Reservoirs From Space With Altimetry‐Derived Gravity Data
AGU Advances, Volume 5, Issue 6, December 2024.Abstract I investigate the detectability of magma reservoirs in the vertical gravity gradient (VGG) anomalies calculated from satellite altimetry data. First, I calculate a suite of synthetic seamount models to show the expected VGG anomaly characteristic wavelength and amplitude for a simplified magmatic system, hydrothermal system, and a caldera ...
Hélène Le Mével
wiley +1 more source
Journal of Geodetic Science, 2023 New gravity and precise levelling measurements have been performed throughout the Hong Kong territories to modernize a vertical geodetic datum that is currently realized by heights of levelling benchmarks defined in the Hong Kong Principal Datum (HKPD ...
Čunderlík Robert +5 more
doaj +1 more source
Variations of Heat Flux and Elastic Thickness of Mercury From 3‐D Thermal Evolution Modeling
Geophysical Research Letters, Volume 51, Issue 21, 16 November 2024.Abstract Mercury's low obliquity and 3:2 spin‐orbit resonance create a surface temperature distribution with large latitudinal and longitudinal variations. These propagate via thermal conduction through the thin silicate shell influencing the interior temperature distribution.
Aymeric Fleury +4 more
wiley +1 more source
Computation of precise geoid model of Auvergne using current UNB Stokes- Helmert’s approach
Contributions to Geophysics and Geodesy, 2017 The aim of this paper is to show a present state-of-the-art precise gravimetric geoid determination using the UNB Stokes-Helmert’s technique in a simple schematic way.
Juraj JANÁK +5 more
doaj +1 more source
The Potential of Hydrogeodesy to Address Water‐Related and Sustainability Challenges
Water Resources Research, Volume 60, Issue 11, November 2024.Abstract Increasing climatic and human pressures are changing the world's water resources and hydrological processes at unprecedented rates. Understanding these changes requires comprehensive monitoring of water resources. Hydrogeodesy, the science that measures the Earth's solid and aquatic surfaces, gravity field, and their changes over time ...
Fernando Jaramillo +56 more
wiley +1 more source
The Benefits of Future Quantum Accelerometers for Satellite Gravimetry
Earth and Space Science, Volume 11, Issue 9, September 2024.Abstract We investigate the benefits of future quantum accelerometers based on cold atom interferometry (CAI) on current and upcoming satellite gravity mission concepts. These mission concepts include satellite‐to‐satellite tracking (SST) in a single‐pair (GRACE‐like) and double‐pair constellation as well as satellite gravity gradiometry (SGG, single ...
P. Zingerle +6 more
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A 30 m Global Flood Inundation Model for Any Climate Scenario
Water Resources Research, Volume 60, Issue 8, August 2024.Abstract Global flood mapping has developed rapidly over the past decade, but previous approaches have limited scope, function, and accuracy. These limitations restrict the applicability and fundamental science questions that can be answered with existing model frameworks.
Oliver E. J. Wing +20 more
wiley +1 more source