Results 81 to 90 of about 3,699 (225)

Using EGM2008 Gravity Data for Mapping and Detecting Structural Subsurface Anomalies in the Mayo-Kani Division (Cameroon)

Journal of Geosciences and Geomatics, 2019
To resolve the problem of gravity mapping in the Mayo-Kani Division, we extracted a sample of data from the high-resolution Bouguer anomaly database EGM2008. The objective of this process was to map and detect subsurface anomalies in the region. Regional-
Jean Jacques Nguimbous-Kouoh, S. Ngos, E. Manguelle-Dicoum   +2 more
semanticscholar   +1 more source

Mélange‐Driven Coupling Between the Central Pine Island Ice Shelf and the Piglet Glacier Reverses Recent Acceleration Trends

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract By analyzing velocity changes of the Pine Island Ice Shelf (PIIS) from October 2014 to August 2025 using Sentinel‐1A/B imagery, we find that the PIIS flow changed markedly over this period. A distinct slowdown occurred at the central PIIS from 14 March 2022 to 20 January 2023, during which velocities decreased from 13.15 ± 0.04 to 12.71 ± 0.17 
Yite Chien, Chunxia Zhou, Bryan Riel
wiley   +1 more source

Omission Error Analysis in Gravity Gradient Measurement

IEEE Access, 2018
Gravity gradient plays an important role in many fields of science, and many methods are used to achieve the measurement of it. To improve measurement accuracy, various error analyses have been conducted in previous studies about positioning and ...
Hongwei Wei, Meiping Wu, Juliang Cao, Junxiang Lian, Shaokun Cai   +4 more
doaj   +1 more source

Development of a local quasigeoid model for Vietnam land area using the global EGM2008 model

Journal of Physics: Conference Series, 2019
The article presents the results of research on the development of methods for obtaining normal heights in Vietnam using the global geoid model EGM2008 and software for processing GNSS measurements.
T. T. Sơn, A. Kuzin, M. Mustafin
semanticscholar   +1 more source

Almost Everything You Always Wanted to Know About Representing Gravity in Global Models but Were Afraid to Ask

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

Braided Rivers From SWOT: Water Surface Dynamics Over the Multi‐Channel Brahmaputra River

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract The Surface Water and Ocean Topography (SWOT) satellite can simultaneously observe river elevation, width, and slope with high spatio‐temporal coverage and resolution (Fu et al., 2024, https://doi.org/10.1029/2023gl107652). The River Single‐Pass (RiverSP) product from SWOT provides geolocated river surface water dynamics with global coverage ...
Sarah E. Franze, Simon Köhn, Connor Chewning, Karina Nielsen   +3 more
wiley   +1 more source

Normal gravity field in relativistic geodesy

, 2018
Modern geodesy is subject to a dramatic change from the Newtonian paradigm to Einstein's theory of general relativity. This is motivated by the ongoing advance in development of quantum sensors for applications in geodesy including quantum gravimeters ...
Han, Wen-Biao, Kopeikin, Sergei M., Vlasov, Igor Yu.   +2 more
core   +1 more source

Deriving Intertidal Topography From SWOT Data and Sentinel‐2 Data

Geophysical Research Letters, Volume 52, Issue 21, 16 November 2025.
Abstract The Surface Water and Ocean Topography (SWOT) mission, initially designed to observe oceans and inland waters, proves valuable for mapping intertidal flat topography. This study presents a fusion method that integrates freely available SWOT interferometric altimetry data with Sentinel‐2 imagery.
Mingzhi Sun, Wei Feng, Xudong Wang, Nan Xu, Fukai Peng, Xiaodong Chen, Dechao An, Luciana Fenoglio, Meng Yang, Min Zhong   +9 more
wiley   +1 more source

Pemodelan Geoid Kota Semarang [PDF]

, 2013
Kota Semarang merupakan ibukota provinsi Jawa Tengah yang memiliki kondisi topografi yang unik dengan variasi dataran dan perbukitan. Kondisi topografi yang seperti itu menjadikan penentuan tinggi orthometrik dengan metode sipat datar menyebar ke seluruh
Kahar, S. (Sutomo), Rastawira, T. (Tanggo), Sabri, L. M. (L)   +2 more
core  

Slope Correction for Ocean SAR Altimetry

Earth and Space Science, Volume 12, Issue 11, November 2025.
Abstract Since the 2010 launch of Cryosat‐2, a new generation of altimeters, referred to as SAR altimetry, has emerged and partially replaced the previous conventional altimeters known as Low Resolution Mode (LRM) altimetry. A surface slope correction has been previously developed for LRM altimetry.
Juliette Gamot, Marie‐Isabelle Pujol, Philippe Schaeffer, François Bignalet‐Cazalet, Emeline Cadier, Thomas Moreau   +5 more
wiley   +1 more source