Results 31 to 40 of about 843 (193)

Daily Soil Moisture Retrieval by Fusing CYGNSS and Multi-Source Auxiliary Data Using Machine Learning Methods. [PDF]

open access: yesSensors (Basel), 2023
The Cyclone Global Navigation Satellite System (CYGNSS), a publicly accessible spaceborne Global Navigation Satellite System Reflectometry (GNSS-R) data, provides a new alternative opportunity for large-scale soil moisture (SM) retrieval, but with ...
Yang T, Wang J, Sun Z, Li S.
europepmc   +2 more sources

A Preliminary Impact Study of CYGNSS Ocean Surface Wind Speeds on Numerical Simulations of Hurricanes. [PDF]

open access: yesGeophys 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

The Application of CYGNSS Data for Soil Moisture and Inundation Mapping in Australia

open access: yesIEEE 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
doaj   +1 more source

Studies of a Rapid Change Detector Using CYGNSS Level-2 Wind Speed Products

open access: yesIEEE 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

open access: yesFrontiers 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

Triple Collocation Analysis and In Situ Validation of the CYGNSS Soil Moisture Product

open access: yesIEEE 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

Response to Variations in River Flowrate by a Spaceborne GNSS-R River Width Estimator

open access: yesRemote 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

CYGNSS Ocean Altimetry: A Status Report [PDF]

open access: yes, 2022
Comunicación expuesta online en el CYGNSS Science Team Summer Meeting celebrado del 27 al 29 de julio de ...
Yi, Yuchan   +13 more
core  

Comparing Winds near Tropical Oceanic Precipitation Systems with and without Lightning

open access: yesRemote 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

Soil Moisture Content from GNSS Reflectometry Using Dielectric Permittivity from Fresnel Reflection Coefficients

open access: yesRemote 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

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