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A Modified Hierarchical Vision Transformer for Soil Moisture Retrieval From CYGNSS Data
Water Resources ResearchThis research introduces a new deep learning (DL) framework, multi‐head self‐attention‐aided vision Transformer (MSA‐ViT), for soil moisture (SM) retrieval using Cyclone Global Navigation Satellite System (CYGNSS) data. We first assess the sensitivity of
Qingyun Yan +4 more
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The NASA CYGNSS SmallSat Constellation [PDF]
, 2023 The NASA Cyclone Global Navigation Satellite System (CYGNSS) is a constellation of eight microsatellites in low earth orbit at ~525 km altitude and 35 deg inclination. CYGNSS was launched in December 2016 for a planned 2 year mission and 7 of the 8 spacecraft continue to operatue nominally as of May 2023.
Ruf, Christopher +4 more
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Frontiers in Earth ScienceThis study examines the influence of NASA Cyclone Global Navigation Satellite System (CyGNSS) Level 2-derived 10 m (near-surface) wind speed over the ocean on analyses and forecasts within the NOAA operational Hurricane Analysis and Forecast System (HAFS)
Bachir Annane, Lewis J. Gramer
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Assessment of Interpolation Errors of CYGNSS Soil Moisture Estimations [PDF]
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 High spatiotemporal soil moisture (SM) is essential for many meteorological, hydrological, and agricultural applications and studies. Spaceborne Global Navigation Satellite System-Reflectometry (GNSS-R) provides a promising opportunity for high ...
Volkan Senyurek +2 more
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Remote Sensing, 2023 Spaceborne GNSS-R technology is a new remote sensing method for soil moisture monitoring. Focusing on the significant influence of water on the surface reflectivity of CYGNSS, this paper improved the removal method of water influence according to the ...
Qi Wang +5 more
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CYGNSS Ocean Altimetry: A Status Report [PDF]
, 2022 Comunicación expuesta online en el CYGNSS Science Team Summer Meeting celebrado del 27 al 29 de julio de ...
Shum, C.K. +13 more
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Variational Retrievals of High Winds Using Uncalibrated CyGNSS Observables
Remote Sensing, 2020 This study presents a new retrieval approach for obtaining wind speeds from CyGNSS level-1 observables. Unlike other existing approaches, (1) this one is a variational technique that is based on a physical forward model, (2) it uses uncalibrated bin raw ...
Estel Cardellach +2 more
exaly +3 more sources
Significant Wave Height Estimation From Joint CYGNSS DDMA and LES Observations [PDF]
Sensors, 2021 Shuanggen Jin, Yan Jia
exaly +2 more sources
Remote Sensing, 2020 Spaceborne Global Navigation Satellite System Reflectometry (GNSS-R) provides a new opportunity for land observation. This study is the first to compare and evaluate the performance of the only two spaceborne GNSS-R satellite missions whose data are ...
Ting Yang +5 more
doaj +2 more sources
The Application of CYGNSS Data for Soil Moisture and Inundation Mapping in Australia
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 Cyclone global navigation satellite system (CYGNSS) has provided a valuable opportunity for high spatiotemporal monitoring of land surface reflectivity over the past few years.
Mehdi Khaki +3 more
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