Results 41 to 50 of about 3,082 (144)

Performances Study of Interferometric Radar Altimeters: from the Instrument to the Global Mission Definition

Sensors, 2006
The main limitations of standard nadir-looking radar altimeters have been knownfor long. They include the lack of coverage (intertrack distance of typically 150 km for theT/P / Jason tandem), and the spatial resolution (typically 2 km for T/P and Jason),
Anny Cazenave, Laurent Phalippou, Ernesto Rodriguez, Jean-Claude Souyris, Patrick Vincent, Vivien Enjolras   +5 more
doaj   +1 more source

SPECTRASAT: A concept for the collection of global directional wave spectra [PDF]

, 1984
The synthetic aperture radar (SAR) imagery from SEASAT revealed a rich tapestry of backscatter patterns from the surface of the ocean. Although still far from being fully understood, these patterns occurred on nearly all spatial scales accessible to the ...
Beal, R. C.
core   +1 more source

Evaluating SWOT in the Coastal Zone: Comparisons With Tide Gauge and Airborne LiDAR in the Bristol Channel and Severn Estuary, UK

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Traditional nadir altimeters struggle with coastal water surface elevation (WSE) measurement and fine‐scale river‐estuary interactions, due to land‐water signal interference and their wide inter‐track spacing. The wide‐swath Surface Water and Ocean Topography (SWOT) mission, using a new Ka‐band radar interferometer, aims to address these ...
Youtong Rong, Paul Bates, Jeff Neal, Paul Bell, Christine Gommenginger, Ian Dougal Lichtman, Christopher Banks, Francisco J. M. Calafat, Adrien Martin, Jennifer Brown, Richard Cooke, Christopher Balfour, Michela De Dominicis, Marta Payo Payo, Simon Williams, Laurent Amoudry, Stephen Chuter, Simon Neill, Jude Chisholm, Colin J. Gleason, John Kupiec, Matt Lewis   +21 more
wiley   +1 more source

Wide‐Swath Satellite Altimetry Data Improves Modeled Mesoscale and Submesoscale Dynamics in a Western Boundary Current

Geophysical Research Letters, Volume 53, Issue 2, 28 January 2026.
Abstract Ocean state estimates that represent mesoscale and submesoscale dynamics are crucial for climate research and ocean forecasting. Accurate submesoscale representation in ocean models is a current challenge due to rapidly evolving flow and lack of observations at suitable scales.
C. Kerry, S. R. Keating, M. Roughan, M. Azaneu, G. B. Brassington   +4 more
wiley   +1 more source

An Empirical Algorithm to Retrieve Significant Wave Height from Sentinel-1 Synthetic Aperture Radar Imagery Collected under Cyclonic Conditions

Remote Sensing, 2018
In this study, an empirical algorithm is proposed to retrieve significant wave height (SWH) from dual-polarization Sentinel-1 (S-1) synthetic aperture radar (SAR) imagery collected under cyclonic conditions.
Weizeng Shao, Yuyi Hu, Jingsong Yang, Ferdinando Nunziata, Jian Sun, Huan Li, Juncheng Zuo   +6 more
doaj   +1 more source

On Small Satellites for Oceanography: A Survey [PDF]

, 2015
The recent explosive growth of small satellite operations driven primarily from an academic or pedagogical need, has demonstrated the viability of commercial-off-the-shelf technologies in space. They have also leveraged and shown the need for development
Agelet, Fernando Aguado, Bertolami, Orfeu, Francisco, Frederico, Guerra, André G. C., Rajan, Kanna, Villate, Jaime   +5 more
core   +3 more sources

SMAP Satellite Microwave Radiometry to Monitor River Flow and Lake Level in the Lower Mekong Basin

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract The NASA Soil Moisture Active Passive Mission (SMAP) satellite passive microwave radiometry (PMR) capability is demonstrated for measurements of river stage, river discharge, and lake level with in situ gauging data in the Lower Mekong Basin (LMB).
A. Podkowa, S. V. Nghiem, Z. Kugler, G. R. Brakenridge   +3 more
wiley   +1 more source

Spaceborne Canopy Height Products Should Be Complemented With Airborne Laser Scanning Data: Toward a European Canopy Height Model

Earth and Space Science, Volume 13, Issue 1, January 2026.
Abstract Measuring and mapping vegetation structure is essential for understanding the functioning of terrestrial ecosystems and for informing environmental policies. Recent years have seen a growing demand for high‐resolution data on vegetation structure, driving their prediction at fine resolutions (1–30 m) at state, continental, and global spatial ...
Vítězslav Moudrý, Ruben Remelgado, Matthias Forkel, Michele Torresani, Gaia Vaglio Laurin, Eliška Šárovcová, Virginia E. Garcia Millan, Fabian Jörg Fischer, Tommaso Jucker, Michal Gallay, Patrick Kacic, Christopher R. Hakkenberg, Žiga Kokalj, Krzysztof Stereńczak, Yousef Erfanifard, Duccio Rocchini, Jiří Prošek, Stephanie Roilo, Kateřina Gdulová, Anna F. Cord, Michela Perrone, Juan Alberto Molina‐Valero, Jiří Šmída, Peter Surový, Zlatica Melichová, Marco Malavasi, Rudolf Urban, Martin Štroner, Dominik Seidel, Szilárd Szabó, László Bertalan, Anette Eltner, Roberto Cazzolla Gatti, Ján Kaňuk, Vojtěch Barták, Daniel Franke, Benjamin Brede, Qian Song, Mikhail Urbazaev, W. Daniel Kissling   +39 more
wiley   +1 more source

Non-uniform phase filter for Tiangong-2 Interferometric Imaging Radar Altimeter

The Journal of Engineering, 2019
The interferometric imaging radar altimeter (InIRA) on-board Chinese Tiangong-2 space laboratory is a Ku-band interferometric radar whose major aim is to measure the wide-swath ocean topography. Unlike traditional interferometric synthetic aperture radar
Xiao Dong, Yunhua Zhang, Yunhua Zhang
doaj   +1 more source

Expanding the Coastal Observation Frontier: SWOT Reveals the Spatial Footprint of Storm Surges

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract This study investigates the ability of the Surface Water and Ocean Topography (SWOT) satellite to capture storm‐surge‐driven high sea levels in coastal regions. For the first time, the evolving process of storm surges has been observed in 2D through SWOT satellite data, providing a unique spatial perspective on these local extreme events.
Diego Vega‐Gimenez, Angel Amores, Alexandre Paris, Ananda Pascual   +3 more
wiley   +1 more source