Results 131 to 140 of about 319 (152)
Scale-Aware Neural Calibration for Wide Swath Altimetry Observations
IEEE Transactions on Geoscience and Remote Sensing8 pages, 7 figures ...
Quentin Febvre +2 more
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CryoSat-2 swath interferometric altimetry for mapping ice elevation and elevation change [PDF]
Advances in Space Research, 2018 Abstract For more than 25 years, satellite radar altimetry has provided continuous information on the state of the cryosphere and on its contribution to global sea-level rise. The technique typically delivers maps of ice-sheet elevation and elevation change with 3–10 km spatial resolution and seasonal to monthly temporal resolution.
Noel Gourmelen +2 more
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Swath altimetry of oceans and terrain
Advances in Space Research, 1987Abstract Satellite radar altimeters have demonstrated a wide range of scientific capabilities over oceans and ice, and have considerable potential over land and inland water /1/. However, the universal adoption of the single-beam, pulse-limited mode of operation limits the spatial and temporal sampling achievable, and makes the generation of surface ...
C.G. Rapley, H.D. Griffiths
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Interferometric Swath Radar Altimetry for the study of the Cryosphere
2022Reference and repeat-observations of land-ice topography is critical to identify causal links between climate and ice trends, generate an accurate record of ice mass balance, and quantify land ice contribution to sea level change. Over the last 30 years, radar altimetry has been instrumental in monitoring ice sheets and their contribution to sea level ...
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Detection capabilities of a multi-satellite wide-swath altimetry conceptual mission
2023The soon-to-be available swath altimetry observations from the SWOT mission are expected to drastically improve our capacity to observe fine-scale ocean processes (wavelengths shorter than 100 km). With its increased observing capacity and lower signal-to-noise (SNR) ratio in comparison to conventional nadir altimetry, this new technology is expected ...
Oscar Vergara +4 more
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IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Ahstract-A comprehensive description of the Sea State Bias (SSB) for wide-swath interferometric (WSI) altimetry is proposed using a two-scale transfer function of the first-of-its-kind instrument, the KaRIn instrument of the SWOT mission. We show that the SSB encompass the contribution of the ElectroMagnetic Bias (EMB) similarly to conventionnal ...
Pierre Dubois, Bertrand Chapron
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Ahstract-A comprehensive description of the Sea State Bias (SSB) for wide-swath interferometric (WSI) altimetry is proposed using a two-scale transfer function of the first-of-its-kind instrument, the KaRIn instrument of the SWOT mission. We show that the SSB encompass the contribution of the ElectroMagnetic Bias (EMB) similarly to conventionnal ...
Pierre Dubois, Bertrand Chapron
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A Trailblazing Global Ocean Simulation in the Time of Wide Swath Altimetry
We present the development of a next-generation family of Lat–Lon–Cap (LLC) global ocean simulations, culminating in LLC8640, a 1/96◦ (≈ 1 km) realistic global 'nature run’ that, once complete, will represent the highest-resolution global ocean model produced under realistic conditions.Kayhan Momeni +3 more
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S3NG-T swath altimetry performance assessments with the CNES simulator Radarspy
The Sentinel-3 Next Generation - Topography (S3NG-T) mission, led by the European Space Agency (ESA), aims to succeed the currently-flying Sentinel-3 operational altimetry mission, using the recent swath altimetry technique pioneered by the SWOT mission.Yu, Louise +2 more
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Wide-swath Satellite Altimetry Observes Water Storage Variability in the World’s Rivers
Despite only making up a fraction of total inland surface water storage, rivers are among Earth's most critical renewable and accessible freshwater resources. Yet, global estimates of river water storage magnitude and variability remain scarce and highly uncertain, largely due to limited understanding of surface water balance, unknown channel ...Cerbelaud, Arnaud +6 more
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Assessing and Reducing Uncertainty in the Wet Tropospheric Correction for Wide Swath Altimetry
Uncertainty in the wet tropospheric path delay correction (WPD) has a one-to-one mapping to sea surface height uncertainty. For SWOT, the WPD correction is performed using a dual-beam radiometer operating between 18-34 GHz. The two radiometer beams are pointed a few degrees off-nadir to either side of the ground track and roughly centered in each of ...openaire +1 more source