Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2021GL095699 |
Tropical Cyclone Winds and Inflow Angle Asymmetry from SAR Imagery | |
Guosheng Zhang; Xiaofeng Li; William Perrie; Jun A. Zhang | |
2021-10-10 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2021 |
英文摘要 | This study developed a morphological model for Tropical Cyclone (TC) wind and inflow angle asymmetry based on sea surface wind fields derived from spaceborne synthetic aperture radar (SAR) images. The model extracts the standard TC morphological information (center, intensity, and radius of the maximum wind) and decomposes the SAR-derived winds into vortex rotation winds and motion vector, making the reconstruction of the entire TC structure reliable, even in areas not mapped by SAR. The derived wind speeds and inflow angles are verified with aircraft measurements by stepped-frequency microwave radiometer and dropsondes, obtaining root-mean-square errors of 4.32 m/s and 16.04o, respectively. A systematic analysis of 130 SAR TCs images, collected by RADARSAT-2, and SENTINEL-1, reveals that the model can capture the main asymmetrical TC structure. Both TC asymmetry and eye size decrease as TC intensity increases. |
领域 | 气候变化 |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/339759 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Guosheng Zhang,Xiaofeng Li,William Perrie,et al. Tropical Cyclone Winds and Inflow Angle Asymmetry from SAR Imagery[J]. Geophysical Research Letters,2021. |
APA | Guosheng Zhang,Xiaofeng Li,William Perrie,&Jun A. Zhang.(2021).Tropical Cyclone Winds and Inflow Angle Asymmetry from SAR Imagery.Geophysical Research Letters. |
MLA | Guosheng Zhang,et al."Tropical Cyclone Winds and Inflow Angle Asymmetry from SAR Imagery".Geophysical Research Letters (2021). |
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