Results 1 to 10 of about 105 (100)
Improved the Impact of SST for HY-2A Scatterometer Measurements by Using Neural Network Model [PDF]
Sensors, 2023 The variation of sea surface temperature (SST) can change the backscatter coefficient measured by a scatterometer, resulting in a decrease in the accuracy of the sea surface wind measurement.
Jing Wang +6 more
doaj +2 more sources
Preliminary Assessment of Wind and Wave Retrieval from Chinese Gaofen-3 SAR Imagery [PDF]
Sensors, 2017 The Chinese Gaofen-3 (GF-3) synthetic aperture radar (SAR) launched by the China Academy of Space Technology (CAST) has operated at C-band since September 2016.
Weizeng Shao, Yexin Sheng, Jian Sun
doaj +2 more sources
High Wind Geophysical Model Function Modeling for the HY-2A Scatterometer Using Neural Network
Remote Sensing, 2022 Under low to medium wind speeds and no rainfall, the retrieved vector wind from a scatterometer is accurate and reliable. However, under high wind conditions, the currently used geophysical model function (GMF), such as NSCAT-2, for wind vector retrieval
Xuetong Xie, Jing Wang, Mingsen Lin
doaj +1 more source
Remote Sensing, 2022 Physical understanding and modeling of Ka-band ocean surface backscatter is challenging due to a lack of measurements. In the framework of the NASA Earth Ventures Suborbital-3 Submesoscale Ocean Dynamics Experiment (S-MODE) mission, a Ka-Band Ocean ...
Federica Polverari +8 more
doaj +1 more source
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 Synthetic aperture radar (SAR) is known to be able to provide high-resolution estimates of surface wind speed. These estimates usually rely on a geophysical model function (GMF) that has difficulties accounting for nonwind processes, such as rain events.
Aurelien Colin +4 more
doaj +1 more source
Remote Sensing, 2022 Compared with co-polarized (HH/VV) normalized radar cross-section (NRCS) backscattered from the sea surface, there is no saturation phenomenon in cross-polarized (HV/VH) NRCS when wind speed is greater than about 20 m/s, so cross-polarized synthetic ...
Letian Lv +4 more
doaj +1 more source
Extreme Wind Speeds Retrieval Using Sentinel-1 IW Mode SAR Data
Remote Sensing, 2021 With the improvement in microwave radar technology, spaceborne synthetic aperture radar (SAR) is widely used to observe the tropical cyclone (TC) wind field.
Yuan Gao +3 more
doaj +1 more source
Remote Sensing, 2022 Over the Philippine Sea, the tropical cyclone (TC) Goni reaches category 5 on 29–31 October 2020. Multi-satellite observations, including CFOSAT SWIM/SCAT and Sentinel-1 SAR data, are jointly analyzed to assess the performances of a parametric model ...
Maria Yurovskaya +5 more
doaj +1 more source
Remote Sensing, 2021 Extension of the existing airborne radars’ applicability is a perspective approach to the remote sensing of the environment. Here we investigate the capability of the rotating-beam radar installed over the fuselage for the sea surface wind measurement ...
Alexey Nekrasov, Alena Khachaturian
doaj +1 more source
IEEE Access, 2020 The sea surface temperature (SST) actively impacts the backscattering coefficient measured by scatterometers and the wind retrieval accuracy. However, none of the geophysical model functions (GMFs) currently used in operational wind retrieval considers ...
Yihuan Peng +4 more
doaj +1 more source