Results 11 to 20 of about 144 (135)
TDS-1 GNSS reflectometry wind geophysical model function response to GPS block types
Geo-spatial Information Science, 2022 This paper presents the TDS-1 GNSS reflectometry wind Geophysical Model Function (GMF) response to GPS block types. The observables were extracted from Delay Doppler Maps (DDMs) after taking the receiver antenna gains effects and GNSS-R geometry effects ...
Fade Chen +5 more
doaj +2 more sources
Remote Sensing, 2022 The purpose of the study is to assess the suitability of synthetic aperture radar (SAR) data to provide sea surface wind (SSW) fields along with a spatial distribution of both SSW speed and direction uncertainty. A simple methodology based on geophysical
Fabio Michele Rana, Maria Adamo
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Association Between Geomagnetic Activity and Unsuccessful Out-of-Hospital Cardiac Arrest. [PDF]
GeohealthAbstract Out‐of‐hospital cardiac arrests (OHCAs) represent a significant global health challenge, with a survival rate <10%. Recent research has demonstrated that geomagnetic activity (GMA) can disrupt the circadian rhythm. Therefore, GMA may affect patient outcomes after an OHCA event wherein resuscitation is attempted.
Vencloviene J +6 more
europepmc +2 more sources
Research on Wind Speed Inversion Method for X-Band Networked SAR Satellite
Journal of Marine Science and Engineering, 2020 Synthetic aperture radar (SAR) can extract sea surface wind speed information. To extract wind speed information through the geophysical model function (GMF), the corresponding wind direction information must be input.
Yong Wan +5 more
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Improved CYGNSS Wind Speed Retrieval Using Significant Wave Height Correction
Remote Sensing, 2021 This article presents the methodology for an improved estimation of the sea surface wind speed measured by the cyclone global navigation satellite system (CYGNSS) constellation of satellites using significant wave height (SWH) information as external ...
Daniel Pascual +2 more
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Novel Approach to Wind Retrieval from Sentinel-1 SAR in Tropical Cyclones
Canadian Journal of Remote Sensing, 2023 The strong winds in tropical cyclones (TCs) are commonly retrieved from cross-polarized SAR images using a geophysical model function (GMF). However, the accuracy of wind retrieval in cross-polarization is significantly reduced at the edges of sub-swaths.
Xianbin Zhao +3 more
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Retrieval of Rain Rates for Tropical Cyclones From Sentinel-1 Synthetic Aperture Radar Images
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023 The purpose of this study was to develop a method for retrieving the rain rate from C-band (∼5.3 GHz) synthetic aperture radar (SAR) images during tropical cyclones (TCs).
Xianbin Zhao +3 more
doaj +1 more source
Remote Sensing, 2023 FY-3E WindRAD (Fengyun-3E Wind Radar) is a dual-frequency rotating fan-beam scatterometer. Its data characteristics, NOC (NWP Ocean Calibration), and wind retrieval performance are investigated in this paper.
Zhen Li +4 more
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Bayesian Sea Ice Detection Algorithm for CFOSAT
Remote Sensing, 2022 This paper describes the adaptation of the Bayesian sea ice detection algorithm for the rotating fan-beam scatterometer CSCAT onboard the China–France Oceanography Satellite (CFOSAT).
Zhen Li, Anton Verhoef, Ad Stoffelen
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Sea Surface Wind Retrievals from SIR-C/X-SAR Data: A Revisit
Remote Sensing, 2015 The Geophysical Model Function (GMF) XMOD1 provides a linear algorithm for sea surface wind field retrievals for the Spaceborne Imaging Radar-C/X-band Synthetic Aperture Radar (SIR-C/X-SAR).
Yongzheng Ren +2 more
doaj +1 more source