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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
Assessment of Swath Altimetry Performance for S3NG-T HR Mode Using the Radarspy Simulator
We present the contribution of CNES to the Sentinel-3 Next Generation – Topography (S3NG-T) project. Building on the legacy of the SWOT mission, which was the first to demonstrate the use of SAR interferometry for surface water altimetry, the European Space Agency (ESA) has committed to the swath altimetry approach for the successor to the current ...Yanez, Carlos +4 more
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Wide-Swath Global Ionospheric VTEC Mapping Using Interferometric GNSS-R Altimetry
Vertical Total Electron Content (VTEC) is a key parameter characterizing the vertical integral of ionospheric electron density, playing a significant role in space weather monitoring, satellite navigation, remote sensing, and communications. Currently, VTEC monitoring relies primarily on ground-based Global Navigation Satellite System (GNSS) dual ...Junming Xia +9 more
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Bertrand Chapron +2 more
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Bertrand Chapron +2 more
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