Results 31 to 40 of about 1,044 (196)
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
doaj +1 more source
A Preliminary Impact Study of CYGNSS Ocean Surface Wind Speeds on Numerical Simulations of Hurricanes. [PDF]
Geophys Res Lett, 2019 The NASA Cyclone Global Navigation Satellite System (CYGNSS) was launched in December 2016, providing an unprecedented opportunity to obtain ocean surface wind speeds including wind estimates over the hurricane inner‐core region.
Cui Z +4 more
europepmc +2 more sources
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
doaj +1 more source
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
doaj +1 more source
Remote Sensing, 2020 Global Navigation Satellite Systems-Reflectometry (GNSS-R) has shown unprecedented advantages to sense Soil Moisture Content (SMC) with high spatial and temporal coverage, low cost, and under all-weather conditions.
Andres Calabia +2 more
doaj +1 more source
First Evidence of Mesoscale Ocean Eddies Signature in GNSS Reflectometry Measurements
Remote Sensing, 2020 Feasibility of sensing mesoscale ocean eddies using spaceborne Global Navigation Satellite Systems-Reflectometry (GNSS-R) measurements is demonstrated for the first time.
Mostafa Hoseini +5 more
doaj +1 more source