Results 41 to 50 of about 319 (152)

From Lotic to Lentic: SWOT Characterizes Seasonal Hydrodynamics in the Lake‐River Continuum

Geophysical Research Letters, Volume 53, Issue 11, 16 June 2026.
Abstract The interface between rivers and lakes forms a unique hydraulic continuum, in which lotic and lentic regimes dynamically interact and transition between each other. A common expression of this lake‐river continuum (LARIC) is reservoir backwater, where water surface gradually rises from the reservoir pool upstream to the free‐flowing river ...
Xinchen He, Jida Wang, George H. Allen, Huilin Gao, Bruce Rhoads, Katie McQuillan, Paul D. Bates, Jean‐François Crétaux   +7 more
wiley   +1 more source

Data-Driven Calibration of SWOT’s Systematic Errors: First In-Flight Assessment

Remote Sensing
The SWOT satellite, carrying the KaRIN first wide-swath onboard altimeter, was launched in December 2022, and has now delivered more than a year of surface water elevation data over the ocean and inland lakes/rivers. These data are affected by systematic
Clément Ubelmann, Gérald Dibarboure, Benjamin Flamant, Antoine Delepoulle, Maxime Vayre, Yannice Faugère, Pierre Prandi, Matthias Raynal, Frédéric Briol, Geoffroy Bracher, Emeline Cadier   +10 more
doaj   +1 more source

Interferometric swath processing of Cryosat data for glacial ice topography [PDF]

The Cryosphere, 2013
We have derived digital elevation models (DEMs) over the western part of the Devon Ice Cap in Nunavut, Canada, using "swath processing" of interferometric data collected by Cryosat between February 2011 and January 2012.
L. Gray, D. Burgess, L. Copland, R. Cullen, N. Galin, R. Hawley, V. Helm   +6 more
doaj   +1 more source

An Overview of Tsunami Hazards in the Southwest Pacific Ocean

New Zealand Journal of Geology and Geophysics, Volume 69, Issue 2, June 2026.
The southwest Pacific region is geologically complex and exhibits all the principal causes of tsunami generation. While contemporary events and historical catalogs indicate that trans‐Pacific tsunamis have affected this area (∼18% of tsunamis reported globally), it is unique in that a large part of the tsunami effects over the ∼200‐year historical ...
Jean H. M. Roger, Bruce E. O. Thomas, Jose Borrero, Brook Tozer, Julien Collot, Samuel Etienne, Catherine Chagué, Patrick D. Nunn, Emily M. Lane, Shaun Williams, David Burbidge, Hannah E. Power, William Power, Bernard Pelletier   +13 more
wiley   +1 more source

Impact of two high resolution altimetry mission concepts on ocean forecasting

Frontiers in Marine Science
Observing System Simulation Experiments (OSSEs) with the Mercator Ocean/Copernicus Marine global 1/12° data assimilation system have been carried out to compare and quantify the expected performance of two high resolution altimetry mission concepts ...
Mounir Benkiran, Pierre-Yves Le Traon, Pierre-Yves Le Traon, Elisabeth Rémy, Yann Drillet   +4 more
doaj   +1 more source

To Which Extent the Surface Water Ocean Topography (SWOT) Mission Is Currently Able to Monitor Water Surface Elevation and Extent on the French Lakes?

Earth and Space Science, Volume 13, Issue 6, June 2026.
Abstract This study (July 2023–December 2025) assesses the SWOT satellite's ability to measure water surface elevation (WSE) and surface water extent (SWE) over diverse French lakes. WSE estimates from SWOT were compared to in situ gauge data and conventional radar altimetry, while SWE was evaluated using the Global Water Watch (GWW) database.
C. Normandin, F. Frappart, C. Moisy, N. Baghdadi, B. Ygorra, L. Bourrel, P. Maisongrande, D. Leroux, J.‐F. Crétaux, J.‐P. Wigneron   +9 more
wiley   +1 more source

Reconstructing Digital Elevation Models From Single Synthetic Aperture Radar Images

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Traditional radar‐based methods of generating topography involve complex dual‐antenna or formation‐flying satellite configurations, interferometric processing, and specialized expertise. We present an approach for reconstructing digital elevation models (DEMs) from single Synthetic Aperture Radar (SAR) images using deep learning.
W. Hamish Mitchell, Miriam Cha, Michael Newey, J. Taylor Perron   +3 more
wiley   +1 more source

A Multi‐Scale Probabilistic Machine Learning Model for Balanced and Unbalanced Sea Surface Height Decomposition

Journal of Geophysical Research: Machine Learning and Computation, Volume 3, Issue 3, June 2026.
Abstract Sea surface height (SSH) reflects a superposition of balanced motions (BM) and unbalanced motions (UBM), which play distinct roles in ocean dynamics and energetics. The Surface Water and Ocean Topography (SWOT) satellite provides two‐dimensional SSH maps at spatial resolutions where BM and UBM coexist, but its 21‐day repeat cycle precludes ...
Yue Wang, Jingwen Lyu, Tatsu Monkman, Spencer Jones, Christian Pedersen, Dhruv Balwada   +5 more
wiley   +1 more source

Sea surface height measuring using InSAR altimeter

Geodesy and Geodynamics, 2017
Satellite altimetry has been widely used in measuring ocean topography from space. The conventional altimeter system is the nadir radar altimeter system which has the limitations of one-dimensional measurement and is unable to get both high temporal and ...
Xiaohong Sui, Running Zhang, Falin Wu, Yang Li, Xiaoyun Wan   +4 more
doaj   +1 more source

Ocean Circulation Modulating the Nutrient Distribution and Fluxes at Regional and Fine Scales: A Case Study in the Northwestern Mediterranean Sea

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract In the oligotrophic ocean, nutrient distribution plays a key role in controlling primary production via upward fluxes. In spring 2023, the BioSWOT‐Med cruise investigated how fine‐scale ocean dynamics influence nutrient availability in the Mediterranean Sea.
A. Joël, A. M. Doglioli, A. Bosse, P. Bouruet‐Aubertot, L. Buniak, X. Capet, F. d’Ovidio, G. Gregori, R. Martellucci, E. Mauri, M. Menna, T. Moutin, S. Nunige, M. Pacciaroni, R. Rolland, L. Rousselet, E. Pulido‐Villena   +16 more
wiley   +1 more source