Results 41 to 50 of about 324 (153)

GNSS-R Altimetry Performance Analysis for the GEROS Experiment on Board the International Space Station

Sensors, 2017
The GEROS-ISS (GNSS rEflectometry, Radio Occultation and Scatterometry onboard International Space Station) is an innovative experiment for climate research, proposed in 2011 within a call of the European Space Agency (ESA).
Adriano Camps, Hyuk Park, Ivan Sekulic, Juan Manuel Rius   +3 more
doaj   +1 more source

Estimating Submesoscale‐Driven Particulate Organic Carbon Flux From Remote Sensing at a Dynamic Upwelling Front

Journal of Geophysical Research: Oceans, Volume 131, Issue 8, August 2026.
Abstract Submesoscale (1–10 km) vertical velocities at fronts enhance the exchange of particulate organic carbon (POC) and heat between the surface ocean and depth. While POC and temperature can be readily assessed in situ, direct quantification of flux remains uncertain due to the observational challenges of measuring submesoscale vertical velocities ...
Sarah E. Lang, Melissa M. Omand, Mara A. Freilich, Andrey Y. Shcherbina, J. Thomas Farrar, Leo Middleton, Ernesto Rodríguez   +6 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

Disentangling Internal Tides From Balanced Motions With Deep Learning and Surface Field Synergy

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.
Abstract A fundamental challenge in ocean dynamics is disentangling balanced motions and internal waves. Extracting internal tidal (IT) imprints from surface data is a central part of this challenge. Traditional harmonic analysis fails under strong incoherence and poor temporal sampling, as in global satellite observations.
Han Wang, Jeffrey Uncu, Kaushik Srinivasan, Nicolas Grisouard   +3 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

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

Robust Regional Contrast but Penetration‐Sensitive Snow Thickness Over Sea Ice From Multi‐Winter Antarctic CRYO2ICE Observations

Earth and Space Science, Volume 13, Issue 8, August 2026.
Abstract Snow on Antarctic sea ice modulates albedo, thermodynamic growth, and snow–ice formation, yet remains a leading uncertainty in altimetry‐derived sea‐ice thickness. Here we use the post‐2022 CRYO2ICE configuration to derive along‐track winter snow thickness from ICESat‐2 laser and CryoSat‐2 Ku‐band radar freeboards over the Weddell and Ross ...
Xinlong Liu, Alexander D. Fraser, Rachel L. Tilling, Petra Heil, Stuart P. Corney   +4 more
wiley   +1 more source

Impact of Heterogeneous Mantle Viscosity on the Glacial Isostatic Adjustment Correction for GRACE(‐FO): Implications for Surface Mass Trends

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 8, August 2026.
Abstract Accurate interpretation of time‐variable gravity from GRACE (‐FO) requires correction for glacial isostatic adjustment (GIA), which has a gravitational signal similar in magnitude to that of contemporary hydrological and cryospheric mass change.
E. Hightower, L. Caron, F. Landerer, M. Watkins, E. Ivins, E. Larour   +5 more
wiley   +1 more source

Estimating Baseline Flow Resistance Parameters for Remote Sensing River Discharge (RSQ) From River Morphology Characteristics

JAWRA Journal of the American Water Resources Association, Volume 62, Issue 4, August 2026.
ABSTRACT This study demonstrates that flow resistance in rivers, quantified via calibration of a modified Manning's equation, can inform its estimation from channel hydrometric information available from regional or global datasets for a limited set (N = 14) of rigorously calibrated river reaches in Alaska and with less certainty in a large set (N ...
David M. Bjerklie, Merritt E. Harlan, Ethan J. Shavers, Craig B. Brinkerhoff, Lawrence V. Stanislawski, J. Toby Minear, Robert W. Dudley   +6 more
wiley   +1 more source

Diagnosing Submesoscale Divergence From Sea Surface Height

Geophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Surface Water and Ocean Topography satellite mission now delivers global sea surface height (SSH) observations at scales fine enough to resolve submesoscale eddies (<50 km). At these scales, the traditional geostrophic approximation, commonly used to infer surface currents from SSH, no longer holds.
Hector S. Torres
wiley   +1 more source