Results 81 to 90 of about 4,330 (196)

Mass Loss of Greenland and Antarctic Peripheral Glaciers From ICESat and ICESat‐2

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 10, October 2025.
Abstract Greenland and Antarctica's peripheral glaciers are an important but often overlooked element in the global sea‐level rise budget. Here, we use satellite laser altimetry from ICESat and ICESat‐2 to assess the mass loss from Greenland's and Antarctica's peripheral glaciers for three periods: February 2003 to October 2009, October 2009 to April ...
Javed Hassan, Michiel R. van den Broeke, Sanne B. M. Veldhuijsen, William Colgan, Danjal Longfors Berg, Eigil Yuichi Hyldgaard Lippert, Shfaqat A. Khan   +6 more
wiley   +1 more source

Global Geomagnetic Model Errors as a Function of Altitude and Geomagnetic Activity

Space Weather, Volume 23, Issue 10, October 2025.
Abstract The errors of global geomagnetic models, such as the International Geomagnetic Reference Field and the World Magnetic Model (WMM), are well‐characterized at the Earth's surface, but their error behavior as a function of altitude and geomagnetic activity has not been quantified.
Manoj Nair, Martin Fillion, Arnaud Chulliat, Sam Califf   +3 more
wiley   +1 more source

A Semi-Analytical Model for Delay/Doppler Altimetry and Its Estimation Algorithm [PDF]

, 2014
International audienceThe concept of delay/Doppler (DD) altimetry (DDA) has been under study since the mid-1990s, aiming at reducing the measurement noise and increasing the along-track resolution in comparison with the conventional pulse-limited ...
Boy, François, Halimi, Abderrahim, Mailhes, Corinne, Thibault, Pierre, Tourneret, Jean-Yves   +4 more
core   +4 more sources

Assimilation of Ground and Satellite Magnetic Observations Unravels the Ionospheric, Magnetospheric, and Induced Fields During the May and October 2024 Geomagnetic Storms

Geophysical Research Letters, Volume 52, Issue 18, 28 September 2025.
Abstract The geomagnetic storms of May and October 2024 were the strongest storms of solar cycle 25, with the Dst $Dst$ index as low as −412 nT and auroras down to low latitudes. To investigate these extreme events, we developed a global magnetic field model of magnetospheric, ionospheric, and Earth‐induced contributions obtained by assimilating ...
Alexander Grayver, Jingtao Min, Nils Olsen, Ashley Smith   +3 more
wiley   +1 more source

Greenland: Bringing together remote sensing and fieldwork. [PDF]

, 2008
With global land and sea temperatures rising, the importance of accurate monitoring of the world's ice sheets is increasing. Satellite radar altimetry can be used to measure elevation changes of ice sheets from which mass balance can be derived.
Mair, Douglas, Nienow, Peter, Parry, Victoria, Scott, Julian   +3 more
core   +1 more source

A South China Sea Surface Absolute Dynamic Topography Prediction Model Based on Convolutional Long Short‐Term Memory Network With Self‐Attention Mechanism

Geophysical Research Letters, Volume 52, Issue 17, 16 September 2025.
Abstract Absolute dynamic topography (ADT) obtained from satellite altimeter data mapping is widely used in marine environment monitoring and research. Traditional numerical ADT prediction models exhibit high computational demands and low operational efficiency.
Wenbin Sha, Dachao Jin, Lei Liu, Xiaoya Zhang, Fenghua Ling, Fuying Zhang, Yuhong Liao, Jing‐Jia Luo   +7 more
wiley   +1 more source

Comparison between gravity gradients from dense CryoSat-2 altimetry and from shipborne gradiometry [PDF]

, 2017
Satellite altimetry is a tool to gather information about Earth’s oceans and ice coverage on a global extent. Altimetric data can be used to monitor ice sheet changes, create bathymetric maps or analyze the sea surface.
Buss, Roman
core   +1 more source

Southern Ocean 3D Eddy Diagnostics Derived From SWOT

Journal of Geophysical Research: Oceans, Volume 130, Issue 9, September 2025.
Abstract Observations of sea surface height (SSH) from the Surface Water and Ocean Topography (SWOT) satellite have demonstrated remarkable potential for resolving mesoscale and submesoscale ocean features, which are crucial for deriving vertical velocities, a key variable for understanding the transport of heat, carbon, and nutrients between the ocean
Elisa Carli, Yann‐Treden Tranchant, Lia Siegelman, Florian Le Guillou, Rosemary Morrow, Maxime Ballarotta, Oscar Vergara   +6 more
wiley   +1 more source

Arctic Freeboard and Snow Depth From Near‐Coincident CryoSat‐2 and ICESat‐2 (CRYO2ICE) Observations: A First Examination of Winter Sea Ice During 2020–2022

Earth and Space Science
In the summer of 2020, ESA changed the orbit of CryoSat‐2 to align periodically with NASA's ICESat‐2 mission, a campaign known as CRYO2ICE, which allows for near‐coincident CryoSat‐2 and ICESat‐2 observations in space and time over the Arctic until ...
Renée M. Fredensborg Hansen, Henriette Skourup, Eero Rinne, Knut V. Høyland, Jack C. Landy, Ioanna Merkouriadi, René Forsberg   +6 more
doaj   +1 more source

Lake Level Estimation Based on CryoSat-2 SAR Altimetry and Multi-Looked Waveform Classification

Remote Sensing, 2016
In this study, reliable water levels for four lakes are estimated based on an innovative processing strategy using a semi-automatic CryoSat-2 Synthetic Aperture Radar (SAR) multi-looked waveform classification.
Franziska Göttl, Denise Dettmering, Felix L. Müller, Christian Schwatke   +3 more
doaj   +1 more source