Results 21 to 30 of about 1,160,501 (293)
In this paper, a method for joint sea surface rainfall intensity (RI), wind speed, and wave height retrieval based on spaceborne global navigation satellite system reflectometry (GNSS-R) data is proposed, which especially considers the effects between ...
Jinwei Bu +4 more
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Global wind speed retrieval from sar [PDF]
The global availability of synthetic aperture radar (SAR) wave mode data from the European Remote Sensing (ERS) satellites ERS-1 and ERS-2, as well as ENVISAT, allows for the investigation of the wind field over the ocean on a global and continuous basis.
Jochen Horstmann +3 more
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Fast Dual-LiDAR Reconstruction for Dynamic Wind Field Retrieval
With the advantages of high accuracy, high spatial resolution, and long measurement range, LiDAR is considered as the most suitable measurement technique to deliver quantitative imaging of wind fields. However, for complex wind fields, such as monitoring
Yong Bao, Chao Tan, Jiabin Jia
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Homogenization of scatterometer wind retrievals [PDF]
ABSTRACTSurface winds (10 m equivalent neutral wind velocity) from scatterometer missions since 1992 to present require homogenization to meet the requirements for oceanic and atmospheric climate data records. Sources of differences between winds retrieved from different scatterometer measurements mainly arise from calibration/validation procedures ...
Bentamy, Abderrahim +4 more
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High resolution wind retrieval from SeaWinds [PDF]
While originally designed for measuring vector winds over the ocean at a nominal resolution of 25 km, data from SeaWinds-on-QuikSCAT can be used to retrieve winds over the ocean at higher resolution with the aid of resolution enhancement reconstruction algorithms.
David G. Long, Jeremy B. Luke
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Wind Direction Retrieval Using Support Vector Machine from CYGNSS Sea Surface Data
In view of the difficulty of wind direction retrieval in the case of the large space and time span of the global sea surface, a method of sea surface wind direction retrieval using a support vector machine (SVM) is proposed.
Yun Zhang +6 more
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Optimization of Airborne Scatterometer NRCS Semicircular Sampling for Sea Wind Retrieval
Airborne scatterometer capability depends on not only the device’s technical characteristics but also the scheme used for surface observations. Typically, a rotating-beam scatterometer uses a circular scheme for sampling normalized radar cross-sections ...
Alexey Nekrasov +2 more
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Ultra high resolution wind retrieval for SeaWinds [PDF]
The SeaWinds series of scatterometer instruments were designed to measure vector winds over the ocean at a nominal resolution of 25 km. However, the radar backscatter measurements from which the wind is inferred are made at finer resolution than this.
David G. Long +2 more
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Algorithm for sea surface wind retrieval from TerraSAR-X and TanDEM-X data [PDF]
A Geophysical Model Function (GMF), denoted XMOD2, is developed to retrieve sea surface wind field from Xband TerraSAR-X/TanDEM-X (TS-X/TD-X) data. In contrast to the previously developed XMOD1, XMOD2 consists of a nonlinear GMF, and thus, it depicts ...
Li, Xiao Ming, Lehner, Susanne
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The interferometric imaging radar altimeter (InIRA) adopts a short baseline along with small incidence angles to acquire interferometric signals from the sea surface with high accuracy, thus the wide-swath sea surface height (SSH) and backscattering ...
Guo Li, Yunhua Zhang, Xiao Dong
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