Results 71 to 80 of about 2,974 (193)

A Strictly Geostrophic Product of Sea‐Surface Velocities From the SWOT Fast‐Sampling Phase

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract While geostrophy remains the simplest and most practical balance to extract velocity information from sea‐surface height anomaly (SSHa), confusions remain within the oceanographic community to what extent this balance can be applied to altimetric observations with the launch of the Surface Water and Ocean Topography (SWOT) satellite. Given the
Takaya Uchida, Badarvada Yadidya, Vadim Bertrand, Jia‐Xuan (Julia) Chang, Brian K. Arbic, Jay F. Shriver, Julien Le Sommer   +6 more
wiley   +1 more source

A Software Tool for ICESat and ICESat-2 Laser Altimetry Data Processing, Analysis, and Visualization: Description, Features, and Usage

Software
This paper presents a web-based software tool designed to process, analyze, and visualize satellite laser altimetry data, specifically from the Ice, Cloud, and land Elevation Satellite (ICESat) mission, which collected data from 2003 to 2009, and ICESat ...
Bruno Silva, Luiz Guerreiro Lopes
doaj   +1 more source

Discrepancy in Satellite Altimetry Products Hinders Robust Retrieval of GIA Signals From Bedrock GNSS Data in Greenland

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Isolating glacial isostatic adjustment (GIA) signals from Global Navigation Satellite System (GNSS) observations of vertical land motion (VLM) in Greenland requires removal of elastic solid Earth response to contemporary ice mass change. This elastic correction depends on ice‐surface elevation changes derived from satellite altimetry and firn ...
Holly Kyeore Han, Surendra Adhikari, Lambert Caron, Hui Gao, Parviz Ajourlou, Shfaqat Khan, Beata M. Csatho   +6 more
wiley   +1 more source

SWOT High‐Rate Raster Data Reveals Antarctic Ice Shelf Motion and Change in Response to Ocean and Ice Dynamics

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The NASA/CNES Surface Water and Ocean Topography (SWOT) swath‐mapping radar altimetry satellite mission, launched in December 2022, provides repeat‐track coverage to about ±78.2° latitude every 21 days, sampling many of Antarctica's most dynamic ice shelves that play key roles in constraining mass loss from the grounded ice sheet ...
S. L. Howard, Z. S. Katz, L. Padman, M. R. Siegfried, E. Abrahams, T. M. Snow   +5 more
wiley   +1 more source

Resolving Sharper Fronts of the Agulhas Current Retroflection Using SWOT Altimetry

Geophysical Research Letters
As a cutting‐edge altimetry product, the Surface Water and Ocean Topography (SWOT) satellite observations require validation against in situ measurements and existing satellite data sets.
S. Coadou‐Chaventon, S. Swart, G. Novelli, S. Speich   +3 more
doaj   +1 more source

Rapid Morphological Changes in the Intertidal Zone of the Ganges‐Brahmaputra Delta Revealed by SWOT Altimetry Mission

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Intertidal zones of the Ganges‐Brahmaputra (GB) delta are among the most active coastal environments worldwide, and quantifying their morphological evolution remains challenging due to rapid change and scarce in situ observations. This study presents a satellite‐based direct quantification of intertidal sediment volume change in the Meghna ...
Nushrat Yeasmin, Laurent Testut, Valérie Ballu, Md Jamal Uddin Khan   +3 more
wiley   +1 more source

Assessing Dynamical Contributions to SWOT Sea Surface Height in an Internal Tide Hotspot

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Surface Water and Ocean Topography (SWOT) mission has revealed high‐frequency sea surface height anomaly (SSHA) variability associated with internal gravity waves, yet comparison with in situ observations remains limited. Here, we analyze a mooring array beneath the swaths of SWOT Cal/Val south of New Caledonia, an internal tide (IT ...
Arne Bendinger, Clément Vic, Michel Tchilibou, Sophie Cravatte, Lionel Gourdeau   +4 more
wiley   +1 more source

Inversion of Seafloor Topography in the Gulf of Mexico Based on Convolutional Neural Network Integrated With Multisource Gravity Data and Bathymetric Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Large-scale, high-precision seabed topography data serves as the foundation for scientific research on Earth’s shape and geological structure. Satellite altimetry data combined with classical gravity field inversion methods are important means for
Liyuan Wei, Meng Yang, Xiaodong Chen, Wei Feng, Min Zhong   +4 more
doaj   +1 more source

Two Decades of Ross and Weddell Gyre Variability From Observations

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Weddell and Ross Gyres influence climate‐relevant processes including poleward heat transport, nutrient upwelling and carbon sequestration. However, long‐term tracking of changes to their circulation is limited by the sparsity of observations characteristic of the region.
Julia Neme, Matthis Auger, Cosme Mosneron Dupin, Adele K. Morrison, Paul Spence   +4 more
wiley   +1 more source

The Observed Circumpolar Decline of Antarctic Bottom Water Volume

Geophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Antarctic Bottom Water (AABW) formation is a key component of the global overturning circulation, ventilating the abyssal ocean and sequestering heat and carbon. Using a new reconstruction from the SatGEM‐2 monthly‐varying gravest empirical mode climatology, a continuous, observation‐driven circumpolar record of AABW variability is presented ...
James Wyatt, Nathaniel L. Bindoff, Annie Foppert, Helen Phillips, Stephen R. Rintoul   +4 more
wiley   +1 more source