Results 31 to 40 of about 431,526 (216)
Preface: 25 years of progress in radar altimetry
Advances in Space Research, 2021 International ...
Benveniste, Jérôme, Bonnefond, P.
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Satellite Remote Sensing of the Greenland Ice Sheet Ablation Zone: A Review
Remote Sensing, 2019 The Greenland Ice Sheet is now the largest land ice contributor to global sea level rise, largely driven by increased surface meltwater runoff from the ablation zone, i.e., areas of the ice sheet where annual mass losses exceed gains.
Matthew G. Cooper, Laurence C. Smith
doaj +1 more source
Altimetry Method for an Interferometric Radar Altimeter Based on a Phase Quality Evaluation
Sensors, 2023 A radar altimeter (RA) is useful to improve autonomous functions such as landing guidance or navigation control of an aircraft. To ensure more precise and safer flights by aircraft, an interferometric RA (IRA) capable of measuring the angle of a target ...
Jong-Soo Ha, Sung-Yong Hong
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SAR, SARin, RDSAR and FF-SAR Altimetry Processing on Demand for Cryosat-2, Sentinel-3 & Sentinel-6 at ESA's Altimetry Virtual Lab [PDF]
Proceedings of the International Association of Hydrological SciencesThis paper presents the RDSAR, SAR/SARin & FF-SAR altimetry processors available in the ESA Altimetry Virtual Lab (AVL) hosted on the EarthConsole® platform. An overview on processors and features as well as preliminary analyses using AVL output data
J. Benveniste +12 more
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The impact of snow depth, snow density and ice density on sea ice thickness retrieval from satellite radar altimetry: results from the ESA-CCI Sea Ice ECV Project Round Robin Exercise [PDF]
The Cryosphere, 2015 We assess different methods and input parameters, namely snow depth, snow density and ice density, used in freeboard-to-thickness conversion of Arctic sea ice. This conversion is an important part of sea ice thickness retrieval from spaceborne altimetry.
S. Kern +7 more
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Remote Sensing of Environment, 2020 Water Surface Elevation (WSE) is an important hydrometric observation, useful to calibrate hydrological models, predict floods, and assess climate change. However, the number of in-situ gauging stations is in decline worldwide.
Filippo Bandini +7 more
semanticscholar +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 +4 more
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Waveform Aliasing in Satellite Radar Altimetry
IEEE Transactions on Geoscience and Remote Sensing, 2015 The full deramp pulse compression scheme employed by satellite radar altimeters digitizes each radar echo at a sampling rate matched to the chirp bandwidth. Echo power is undersampled by a factor of 2 when the power samples are simply obtained by squaring the magnitude of the echo samples, without first resampling, as is done in all altimeters to date.
Walter H. F. Smith, Remko Scharroo
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Hydrology and Earth System Sciences, 2020 . A total of 13 satellite missions have been launched since 1985, with different types of radar altimeters on board. This study intends to make a comprehensive evaluation of historic and currently operational satellite radar altimetry missions for lake ...
Song Shu +8 more
semanticscholar +1 more source
IEEE Transactions on Geoscience and Remote Sensing, 2023 Surface-based Ku-band radar altimetry investigations indicate that the radar signal is typically backscattered from well above the snow–sea ice interface. However, this would induce a bias in satellite altimeter sea ice thickness retrievals not reflected
Claude De Rijke-Thomas +5 more
semanticscholar +1 more source