Results 21 to 30 of about 365 (171)
Studies of a Rapid Change Detector Using CYGNSS Level-2 Wind Speed Products
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021 This work further investigates the use of ocean wind speed retrievals from NASA's Cyclone Global Navigation Satellite System (CYGNSS) mission that are closely spaced in space and in time to detect regions in the atmosphere undergoing “rapid&
Mohammad M. Al-Khaldi +2 more
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Remote Sensing, 2022 This study examines the impacts of assimilating ocean-surface winds derived from the NASA Cyclone Global Navigation Satellite System (CYGNSS) on improving the short-range numerical simulations and forecasts of landfalling hurricanes using the NCEP ...
Zhaoxia Pu +5 more
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A preliminary view of the CYGNSS soil moisture-vegetation activity linkage
Frontiers in Forests and Global Change, 2023 IntroductionSoil moisture (SM) is crucial for regulating vegetation productivity and sustaining plant growth. Understanding the linkage between SM and vegetation activity is paramount in eco-hydrology modeling and meteorological applications. CYGNSS, one
Ting Yang, Ting Yang, Nan Cong
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IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Recently, soil moisture (SM) has been estimated using Cyclone Global Navigation Satellite System (CYGNSS) data. Machine learning (ML) algorithms for CYGNSS SM estimation can minimize unpredictable influences and help improve the accuracy of SM retrieval.
Yan Jia +5 more
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Triple Collocation Analysis and In Situ Validation of the CYGNSS Soil Moisture Product
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Cyclone Global Navigation Satellite System (CYGNSS) soil moisture (SM) product is characterized by high temporal resolution, but the relative strengths and weaknesses of this new product are unknown.
Xiaodong Deng +6 more
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Response to Variations in River Flowrate by a Spaceborne GNSS-R River Width Estimator
Remote Sensing, 2019 In recent years, the use of Global Navigation Satellite System-Reflectometry (GNSS-R) for remote sensing of the Earth’s surface has gained momentum as a means to exploit existing spaceborne microwave navigation systems for science-related ...
April Warnock, Christopher Ruf
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First Measurement of Soil Freeze/Thaw Cycles in the Tibetan Plateau Using CYGNSS GNSS-R Data
Remote Sensing, 2020 The process of soil freezing and thawing refers to the alternating phase change of liquid water and solid water in the soil, accompanied by a large amount of latent heat exchange.
Xuerui Wu +6 more
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Comparing Winds near Tropical Oceanic Precipitation Systems with and without Lightning
Remote Sensing, 2020 In order to examine how robust updraft strength and ice-based microphysical processes aloft in storms may affect convective outflows near the surface, ocean winds were compared between tropical maritime precipitation systems with and without lightning ...
Timothy J. Lang
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An Assessment of CyGNSS v3.0 Level 1 Observables over the Ocean
Remote Sensing, 2021 Global Navigation Satellite System Reflectometry (GNSS-R) is a rapidly developing Earth observation technology that makes use of signals of opportunity from Global Navigation Satellite Systems that have been reflected off the Earth’s surface. The Cyclone
Matthew Lee Hammond +3 more
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Deep Learning-Based Soil Moisture Retrieval in CONUS Using CYGNSS Delay–Doppler Maps
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 National Aeronautics and Space Administration's Cyclone Global Navigation Satellite System (CYGNSS) mission has gained significant attention within the land remote sensing community for estimating soil moisture (SM) by using the Global Navigation ...
M M Nabi +3 more
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