气候变化领域集成服务门户(CCPortal): Monitoring of tropical cyclone structures in ten years of RADARSAT-2 SAR images

CCPortal

DOI	10.1016/j.rse.2019.111449
	Monitoring of tropical cyclone structures in ten years of RADARSAT-2 SAR images
	Zhang G.; Perrie W.; Zhang B.; Yang J.; He Y.
发表日期	2020
ISSN	00344257
卷号	236
英文摘要	The cross-polarized synthetic aperture radar (SAR) onboard the RADARSAT-2 satellite has the capability to simultaneously observe the tropical cyclone (TC) structure and ocean surface winds with high spatial resolution of ~1 km and large swath images of ~450 × 450 km. We propose a methodology to extract TC centers, radius of maximum winds, intensities and the azimuthal wave-number one asymmetric surface wind structures from 75 RADARSAT-2 cross-polarized SAR images over the period from 2008 to 2017. We present a quantitative investigation on both the symmetric mean flow and the asymmetries of azimuthal wave-number one in the surface wind fields retrieved from these SAR images. The results demonstrate that the radius of maximum wind decreases as maximum wind increases, which is consistent with the TC dynamic models for axisymmetric convective heating, and that TCs are more asymmetric when they are weak, and close to symmetric when they are strong. © 2019
英文关键词	Synthetic aperture radar (SAR); Tropical cyclone
语种	英语
scopus关键词	Hurricanes; Storms; Synthetic aperture radar; Tropics; Vortex flow; Azimuthal wave number; Convective heating; Cross-polarized; High spatial resolution; Ocean surface winds; Quantitative investigation; Surface wind fields; Tropical cyclone; Radar imaging; extratropical cyclone; methodology; RADARSAT; satellite imagery; sea surface; spatial resolution; subtropical convergence; surface wind; synthetic aperture radar; tropical cyclone
来源期刊	Remote Sensing of Environment
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/179589
作者单位	School of Marine Sciences, Nanjing University of Information Science and Technology, Nanjing, Jiangsu 210044, China; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou, Zhejiang 310012, China; Fisheries and Oceans Canada, Bedford Institute of Oceanography, Dartmouth, Nova Scotia B2Y 4A2, Canada
推荐引用方式 GB/T 7714	Zhang G.,Perrie W.,Zhang B.,et al. Monitoring of tropical cyclone structures in ten years of RADARSAT-2 SAR images[J],2020,236.
APA	Zhang G.,Perrie W.,Zhang B.,Yang J.,&He Y..(2020).Monitoring of tropical cyclone structures in ten years of RADARSAT-2 SAR images.Remote Sensing of Environment,236.
MLA	Zhang G.,et al."Monitoring of tropical cyclone structures in ten years of RADARSAT-2 SAR images".Remote Sensing of Environment 236(2020).