Results 51 to 60 of about 624,911 (207)

SWOT Discharge Accuracy Benchmarked in South America

Geophysical Research Letters, Volume 53, Issue 17, 16 September 2026.
Abstract The Surface Water and Ocean Topography (SWOT) satellite mission offers unprecedented estimates of global river discharge. This study provides a first continental‐scale assessment of SWOT Consensus discharge performance across South America and compares it with a large‐scale hydrodynamic model and in situ observations.
Laila Jover, Augusto Getirana, Colin Gleason, Heejin An, Sydney Crisanti, Eduardo Dose, John B. Eylander, Iván Hellwig, Waldo Lavado, Jean‐Michel Martinez, Jorge Luis Sanchez Lozano, William Santini, Mariana Sosa, Venkataraman Lakshmi   +13 more
wiley   +1 more source

Controls on ERS altimeter measurements over ice sheets: Footprint-scale topography, backscatter fluctuations, and the dependence of microwave penetration depth on satellite orientation [PDF]

, 2001
We consider the reliability of radar altimeter measurements of ice sheet elevation and snowpack properties in the presence of surface undulations. We demonstrate that over ice sheets the common practice of averaging echoes by aligning the first return ...
Wingham, DJ, Arthern, RJ, Ridout, AL
core  

Toward an Improved Understanding of the Antarctic Coastal Zone and Its Contribution to Future Global Sea Level

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka, Geir Moholdt, Jennifer F. Arthur, Julien A. Bodart, Xiangbin Cui, Fausto Ferraccioli, René Forsberg, Vikram Goel, Tom A. Jordan, Felicity S. McCormack, Ruth Mottram, Hamish D. Pritchard, Calvin Shackleton, Kirsty J. Tinto, Fredrik Boberg, Marie G. P. Cavitte, Reinhard Drews, Pierre Dutrieux, Jörg Ebbing, Olaf Eisen, Hannes Eisermann, Alex S. Gardner, Chad A. Greene, Nicholas Holschuh, Stewart S. R. Jamieson, Byeong‐Hoon Kim, Naomi Krauzig, Bernd Kulessa, Carlton Leuschen, Jilu Li, Lu Li, Jonas Liebsch, Joseph A. MacGregor, Emma MacKie, Anirudha Mahagaonkar, Joséphine Maton, Mathieu Morlighem, Francisco Navarro, Peter D. Neff, Inès N. Otosaka, Frank Pattyn, Antonia Ruppel, Rebecca J. Sanderson, Hélène Seroussi, Andrew Shepherd, Matthew R. Siegfried, Thomas Slater, Arjen P. Stroeven, Michael Studinger, Thomas Teisberg, Ryan A. Venturelli, Jeremy P. Winberry, Chen Zhao, Lu An, Jonathan L. Bamber, Robin E. Bell, Robert G. Bingham, Johanna Brehmer‐Moltmann, Graeme Eagles, Jamin Greenbaum, Jorn Gronset, Won Sang Lee, Emmanuel Le Meur, Lenneke M. Jong, Katrin Lindbäck, Sven Lidström, Mareen Lösing, Masahiro Minowa, Mayuri Pandey, Yogesh Ray, Mirko Scheinert, Dustin M. Schroeder, Thorsten Seehaus, Kaian Shahateet, Daniel Steinhage, Xueyuan Tang, Drew Taylor, Hannah Verboncoeur, Junjun Yang, Duncan A. Young   +79 more
wiley   +1 more source

Using a Tandem Flight Configuration between Sentinel-6 and Jason-3 to Compare SAR and Conventional Altimeters in Sea Surface Signatures of Internal Solitary Waves

Remote Sensing, 2023
Satellite altimetry has been providing a continuous record of ocean measurements with numerous applications across the entire range of ocean sciences.
Jorge M. Magalhaes, Ian G. Lapa, Adriana M. Santos-Ferreira, José C. B. da Silva, Fanny Piras, Thomas Moreau, Samira Amraoui, Marcello Passaro, Christian Schwatke, Michael Hart-Davis, Claire Maraldi, Craig Donlon   +11 more
doaj   +1 more source

Satellite‐Derived Volume Budget of Antarctic Sea Ice

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract In recent years, the Antarctic has seen a notable shift in sea ice trends: Where sea ice extent and volume were increasing on average, they have shown an unprecedented decline since 2016. Understanding the drivers of this shift is crucial to determining the impacts of climate change on sea ice and improving modeling of Antarctic sea ice ...
Sabina Sulikova, Gillian Cheong, Carmen Nab, Sabrina Sofea Binti Aliff Raziuddin, Alessandro Silvano, Harold Heorton, Sara Fleury, Florent Garnier, Ted Maksym, Sahra Kacimi, Steven Baker, David Brockley, Isobel Lawrence, Paul R. Holland, Michel Tsamados   +14 more
wiley   +1 more source

Acceleration of parasitic multistatic radar system using GPGPU [PDF]

, 2011
This dissertation details the implementation of PMR [Parasitic Multistatic Radar] signal processing chain in the GPGPU [General Purpose Graphic Processing Units] platform.
John, Mathew
core   +1 more source

Estimation of Arctic Sea Ice Thickness from Chinese HY-2B Radar Altimetry Data

Remote Sensing, 2023
Sea ice thickness (SIT) is an important parameter in the study of climate change. During the past 20 years, satellite altimetry has been widely used to observe sea ice thickness.
Maofei Jiang, Wenqing Zhong, Ke Xu, Yongjun Jia   +3 more
doaj   +1 more source

Assessing SWOT's Measurement Capabilities in the Complex Paraná River

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Estimating water surface elevation (WSE) is crucial for understanding hydrological processes; however, many rivers remain insufficiently monitored due to the limitations of in situ gauge networks. The Surface Water and Ocean Topography (SWOT) mission, equipped with Synthetic Aperture Radar technology, enables global monitoring of WSE with high
E. Walker, C. López Weibel, R. Szupiany, V. Venturini, K. Oberg, J. T. Minear, C. M. García, M. Monserrat   +7 more
wiley   +1 more source

Co-located OLCI optical imagery and SAR altimetry from Sentinel-3 for enhanced Arctic spring sea ice surface classification

Frontiers in Remote Sensing
The Sentinel-3A and Sentinel-3B satellites, launched in February 2016 and April 2018 respectively, build on the legacy of CryoSat-2 by providing high-resolution Ku-band radar altimetry data over the polar regions up to 81° North.
Weibin Chen, Michel Tsamados, Rosemary Willatt, Rosemary Willatt, So Takao, David Brockley, Claude de Rijke-Thomas, Alistair Francis, Thomas Johnson, Jack Landy, Isobel R. Lawrence, Sanggyun Lee, Dorsa Nasrollahi Shirazi, Wenxuan Liu, Wenxuan Liu, Connor Nelson, Julienne C. Stroeve, Julienne C. Stroeve, Julienne C. Stroeve, Len Hirata, Marc Peter Deisenroth   +20 more
doaj   +1 more source

Monitoring Water Levels and Discharges Using Radar Altimetry in an Ungauged River Basin: The Case of the Ogooué

Remote Sensing, 2018
Radar altimetry is now commonly used for the monitoring of water levels in large river basins. In this study, an altimetry-based network of virtual stations was defined in the quasi ungauged Ogooué river basin, located in Gabon, Central Africa, using ...
Sakaros Bogning, Frédéric Frappart, Fabien Blarel, Fernando Niño, Gil Mahé, Jean-Pierre Bricquet, Frédérique Seyler, Raphaël Onguéné, Jacques Etamé, Marie-Claire Paiz, Jean-Jacques Braun   +10 more
doaj   +1 more source