气候变化领域集成服务门户(CCPortal): Three-dimensional analysis of the initial stage of convective precipitation using an operational X-band polarimetric radar network

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DOI	10.1016/j.atmosres.2019.03.015
	Three-dimensional analysis of the initial stage of convective precipitation using an operational X-band polarimetric radar network
	Kim Y.; Maki M.; Lee D.-I.; Jeong J.-H.; You C.-H.
发表日期	2019
ISSN	0169-8095
起始页码	45
结束页码	57
卷号	225
英文摘要	In this study, we propose a new methodology for analysis of the initial stage of localized convective precipitation. The developed algorithm was used to create three-dimensional constant-altitude plan-position-indicator (3D CAPPI) data, which are high-spatiotemporal-resolution volumetric data, using two X-band polarimetric radars that are located in the Kanto region of Japan. Advection vectors are estimated by applying the normalized cross-correlation method to observed successive precipitation echoes on the polar coordinate system at each antenna tilt angle. The estimated advection vectors are expressed by a linear regression model that depends on time and tilt angle. In addition, 3D CAPPI data utilize the mosaic method to obtain further precipitation information from radar observations. The algorithm produces the detailed 3D structure of rapidly developing convective cells and provides quantitative information on convective precipitation, such as the echo top height, maximum reflectivity, and appearance time and height of each cell. The 3D CAPPI mosaic also clearly shows the back-building process at the initial stage of convective precipitation. © 2019 Elsevier B.V.
英文关键词	Convective precipitation; High-resolution radar data; Initial stage; X-band polarimetric radar
语种	英语
scopus关键词	Advection; Antennas; Polarimeters; Regression analysis; Volumetric analysis; Convective precipitation; High resolution radar; Normalized cross correlation; Polar coordinate systems; Quantitative information; Spatio-temporal resolution; Three-dimensional analysis; X-band polarimetric radars; Radar; algorithm; convective system; precipitation assessment; radar; Honshu; Japan; Kanto
来源期刊	Atmospheric Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162120
作者单位	Research and Education Center for Natural Hazards, Kagoshima University, Japan; Department of Environmental Atmospheric Sciences, Pukyong National University, Busan, South Korea; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States; Atmospheric Environmental Research Institute, Pukyong National University, Busan, South Korea
推荐引用方式 GB/T 7714	Kim Y.,Maki M.,Lee D.-I.,et al. Three-dimensional analysis of the initial stage of convective precipitation using an operational X-band polarimetric radar network[J],2019,225.
APA	Kim Y.,Maki M.,Lee D.-I.,Jeong J.-H.,&You C.-H..(2019).Three-dimensional analysis of the initial stage of convective precipitation using an operational X-band polarimetric radar network.Atmospheric Research,225.
MLA	Kim Y.,et al."Three-dimensional analysis of the initial stage of convective precipitation using an operational X-band polarimetric radar network".Atmospheric Research 225(2019).