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Wind Speed Estimation From CYGNSS Using Artificial Neural Networks
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020 In this article, a retrieval algorithm based on the use of an artificial neural network (ANN) is proposed for wind speed estimations from cyclone global navigation satellite system (CYGNSS).
Jennifer Reynolds +2 more
doaj +2 more sources
Assessment of CYGNSS Wind Speed Retrievals in Tropical Cyclones [PDF]
Remote Sensing, 2021 The NASA CYGNSS satellite constellation measures ocean surface winds using the existing network of the Global Navigation Satellite System (GNSS) and was designed for measurements in tropical cyclones (TCs). Here, we focus on using a consistent methodology to validate multiple CYGNSS wind data records currently available to the public, some focusing on ...
Lucrezia Ricciardulli +3 more
openaire +4 more sources
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
doaj +2 more sources
CYGNSS Surface Heat Flux Product Development [PDF]
Remote Sensing, 2019 Ocean surface heat fluxes play a significant role in the genesis and evolution of various marine-based atmospheric phenomena, from the synoptic scale down to the microscale. While in-situ measurements from buoys and flux towers will continue to be the standard in regards to surface heat flux estimates, they commonly have significant gaps in temporal ...
Juan A. Crespo +2 more
openaire +4 more sources
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.
Christopher S. Ruf +9 more
core +2 more sources
An Assessment of CYGNSS Ocean Wind Speed Products
, 2021 <p>Global Navigation Satellite System-Reflectometry (GNSS-R) is an innovative and rapidly developing approach to Earth Observation that makes use of signals of opportunity from Global Navigation Satellite Systems, which have been reflected off the Earth&#8217;s surface.
Hammond, Matthew +4 more
openaire +3 more sources
An Assessment of CyGNSS v3.0 Level 1 Observables over the Ocean [PDF]
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
doaj +2 more sources
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
doaj +3 more sources
Improved GPS-Based Single-Frequency Orbit Determination for the CYGNSS Spacecraft Using GipsyX [PDF]
Navigation, 2023 This paper presents methods for the precise orbit determination (POD) of a satellite in the CYGNSS constellation based on available single-frequency GPS code and carrier measurements. The contributions include the development and evaluation of procedures
Alex V. Conrad +4 more
doaj +2 more sources
Assessing the Altimetric Measurement from CYGNSS Data
IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018 The Cyclone Global Navigation Satellite System (CYGNSS) mission was designed to study hurricane intensification by measuring wind speeds in tropical cyclones. However, the delay-Doppler maps (DDM) that are produced can be used to estimate the sea surface height (SSH) at the specular reflection point on the ocean surface.
Cinzia Zuffada +11 more
openaire +4 more sources