Results 21 to 30 of about 144 (135)

Wind Field Retrieval with Rain Correction from Dual-Polarized Sentinel-1 SAR Imagery Collected during Tropical Cyclones

open access: yesRemote Sensing, 2022
The purpose of this study is to include rain effects in wind field retrieval from C-band synthetic aperture radar (SAR) imagery collected under tropical cyclone conditions.
Weizeng Shao   +5 more
doaj   +1 more source

Preliminary Analysis of Chinese GF-3 SAR Quad-Polarization Measurements to Extract Winds in Each Polarization

open access: yesRemote Sensing, 2017
This study analyzed the noise equivalent sigma zero (NESZ) and ocean wind sensitivity for Chinese C-band Gaofen-3 (GF-3) quad-polarization synthetic aperture radar (SAR) measurements to facilitate further operational wind extraction from GF-3 data.
Lin Ren   +6 more
doaj   +1 more source

Retrieval of Sea Surface Wind Speed from Spaceborne SAR over the Arctic Marginal Ice Zone with a Neural Network

open access: yesRemote Sensing, 2020
In this paper, we presented a method for retrieving sea surface wind speed (SSWS) from Sentinel-1 synthetic aperture radar (SAR) horizontal-horizontal (HH) polarization data in extra-wide (EW) swath mode, which have been extensively acquired over the ...
Xiao-Ming Li, Tingting Qin, Ke Wu
doaj   +1 more source

Using Semicircular Sampling to Increase Sea-Wind Retrieval Altitude with a High-Altitude UAV Scatterometer

open access: yesDrones, 2022
Currently, unmanned aerial vehicles (UAVs) are widely used due to their low cost and flexibility. In particular, they are used in remote sensing as airborne platforms for various instruments.
Alexey Nekrasov   +2 more
doaj   +1 more source

Preliminary analysis of wave retrieval from Chinese Gaofen-3 SAR imagery in the Arctic Ocean

open access: yesEuropean Journal of Remote Sensing, 2022
Synthetic aperture radar (SAR) is a powerful tool for sea surface monitoring. The 2017–2020 mission of the Chinese Gaofen-3 (GF-3) over the Arctic Ocean provided a unique opportunity to investigate the feasibility of wave retrieval in the Arctic Ocean ...
Wei-Zeng Shao   +5 more
doaj   +1 more source

Derivation of Sea Surface Wind Directions from TerraSAR-X Data Using the Local Gradient Method

open access: yesRemote Sensing, 2016
Derivation of sea surface wind direction is a key step of sea surface wind retrieval from spaceborne Synthetic Aperture Radar (SAR) data. This technical note describes an implementation of the Local Gradient (LG) method to derive sea surface wind ...
Yi-Ran Wang, Xiao-Ming Li
doaj   +1 more source

Wind speed retrieval from the Gaofen-3 synthetic aperture radar for VV- and HH-polarization using a re-tuned algorithm

open access: yesEuropean Journal of Remote Sensing, 2021
In this study, a re-tuned algorithm based on the geophysical model function (GMF) C-SARMOD2 is proposed to retrieve wind speed from Synthetic Aperture Radar (SAR) imagery collected by the Chinese C-band Gaofen-3 (GF-3) SAR.
Weizeng Shao   +4 more
doaj   +1 more source

Ocean Wind Retrieval Models for RADARSAT Constellation Mission Compact Polarimetry SAR

open access: yesRemote Sensing, 2018
We propose two new ocean wind retrieval models for right circular-vertical (RV) and right circular-horizontal (RH) polarizations respectively from the compact-polarimetry (CP) mode of the RADARSAT Constellation Mission (RCM), which is scheduled to be ...
Tianqi Sun   +7 more
doaj   +1 more source

Development of X-Band Geophysical Model Function for Sea Surface Wind Speed Retrieval with ASNARO-2

open access: yesAtmosphere
In the present study, a new geophysical model function (GMF) is developed for the X-band synthetic aperture radar (SAR) on board the Advanced Satellite with New System Architecture for Observation-2 (ASNARO-2) to retrieve accurate offshore wind speeds ...
Yuko Takeyama, Shota Kurokawa
doaj   +1 more source

Ocean Surface Wind Speed Retrieval Using Simulated RADARSAT Constellation Mission Compact Polarimetry SAR Data

open access: yesRemote Sensing, 2019
We investigated the use of C-band RADARSAT Constellation Mission (RCM) synthetic aperture radar (SAR) for retrieval of ocean surface wind speeds by using four new channels (right circular transmit, vertical receive (RV); right circular transmit ...
He Fang   +7 more
doaj   +1 more source

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