Results 61 to 70 of about 2,632 (195)

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

Evolution of geoids in recent years and its impact on oceanography

Scientia Marina, 2014
Mean surface geostrophic ocean currents may be calculated from the Mean Dynamic Topography (MDT), estimated as the difference between a mean sea surface height (MSS) calculated from radar altimeters and a reference geoid height.
Marco Talone, Marco Meloni, Josep L. Pelegri, Miquel Rosell-Fieschi, Rune Flobergaghen   +4 more
doaj   +1 more source

The Refined Gravity Field Models for Height System Unification in China

Remote Sensing, 2022
A unified height datum is essential for global geographic information resource construction, ecological environment protection, and scientific research.
Panpan Zhang, Zhicai Li, Lifeng Bao, Peng Zhang, Yongshang Wang, Lin Wu, Yong Wang   +6 more
doaj   +1 more source

Desenvolvimento de um modelo geoidal local no Distrito Federal, Brasil, utilizando técnica remove-computa-restaura, seguindo o método de condensação de Helmert [PDF]

, 2017
Existem diversas técnicas de determinação das alturas geoidais, seja utilizando os dados gravimétricos terrestres, os modelos do geopotencial, as componentes astro-geodésicas ou pela combinação deles.
Marotta, Giuliano Sant’Anna, Vidotti, Roberta Mary   +1 more
core   +1 more source

GECO: a global gravity model by locally combining GOCE data and EGM2008

Studia Geophysica et Geodaetica, 2016
The EGM2008 model is nowadays one of the description of the global gravitational field at the highest resolution. It is delivered with two, not fully consistent, sources of information on its error: spherical harmonic coefficient variances and a geographical map of error variances, e.g. in terms of geoid undulation.
GILARDONI, MADDALENA, REGUZZONI, MIRKO, D. Sampietro   +2 more
openaire   +3 more sources

A three‐dimensional Moho depth model for the Tien Shan from EGM2008 gravity data [PDF]

Tectonics, 2011
The Tien Shan in Central Asia is the largest intracontinental mountain range in the world, but it is 1500 km away from the collision zone between the Indian and Eurasian plates. This region has been and still is the focus of numerous geoscientific studies, mainly because of its evolutionary history and its unique position in the Eurasian lithosphere ...
Rebekka Steffen, Holger Steffen, Gerhard Jentzsch   +2 more
openaire   +1 more source

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

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

Subduction‐Driven Reworking of Craton and Accretionary Orogen: Evidence From Integrated Geophysical Imaging in Western North China Craton

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 9, September 2025.
Abstract Observations and interpreted mechanisms for the reworking of Precambrian cratons and accretionary orogens have significant relevance in understanding the history and evolution of continental lithosphere. Here we investigate the Precambrian basement and lithospheric architecture of the western North China craton (NCC) through the integration of
Xingtao Kuang, Xi Xu, Baodi Wang, M. Santosh, Andrew V. Zuza, Yanyun Sun, Daoqing Zhou, Xuanjie Zhang, Xuezhong Yu, Wan Zhang, Song Han, Longlong Li, Baobao Cao, Fangxin Ning, Zhaoliang Li, Mengchu Xiao   +15 more
wiley   +1 more source

A GOCE only gravity model GOSG01S and the validation of GOCE related satellite gravity models

Geodesy and Geodynamics, 2017
We compile the GOCE-only satellite model GOSG01S complete to spherical harmonic degree of 220 using Satellite Gravity Gradiometry (SGG) data and the Satellite-to-Satellite Tracking (SST) observations along the GOCE orbit based on applying a least-squares
Xinyu Xu, Yongqi Zhao, Tilo Reubelt, Robert Tenzer   +3 more
doaj   +1 more source