首页|Characterization and Application of S-Band Polarimetric Radar and X-Band Phased Array Radar for a Tornadic Storm Event on June 16,2022

Characterization and Application of S-Band Polarimetric Radar and X-Band Phased Array Radar for a Tornadic Storm Event on June 16,2022

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The X-band phased array radar offers faster scanning speed and higher spatial resolution compared to the S-band radar,making it capable of enhancing tornado monitoring and early warning capabilities.This study analyzed the char-acteristics and nowcasting signals of a tornado case that occurred on June 16,2022 in the Guangzhou region.Our findings indicate that the violent contraction of rotation radius and the dramatic increase in rotation speed were important signal characteristics associated with tornado formation.The X-band phased array radar,with its high temporal and spatial resolution,provided an opportunity to capture early warning signals from polarimetric characteristics.The X-band phased array radar demonstrated noteworthy ability to identify apparent tornado vortex signature(TVS)features in a 10-minute lead time,surpassing the capabilities of the CINRAD/SA radar.Additionally,due to its higher scanning frequency,the X-band phased-array radar was capable of consistently identifying TVS with shorter intervals,enabling a more precise tracking of the tornado's path.The application of professional radars,in this case,provides valuable insights for the monitoring of evolutions of severe local storms and even tornadoes and the issuance of early warning signals.

tornadoesX-band phased array radarmesocyclonerotation radius

陈炳洪、傅佩玲、张羽、苏冉、田聪聪、陈超

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Guangzhou Meteorological Observatory,Guangzhou 511430 China

China Meteorological Administration Tornado Key Laboratory,Guangdong Meteorological Service,Foshan,Guangdong 528010 China

Collaborative Innovation Center for Smart Meteorology of Guangzhou,Guangzhou 511430 China

Guangdong Meteorological Observatory,Guangzhou 510640 China

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National Key R&D Program of ChinaScience and Technology Projects of GuangzhouScience and Technology Projects of GuangzhouNatural Science Foundation of Guangdong ProvinceKey Scientific and Technological Research Project of Guangzhou Meteorological Society

2022YFC 30041012023B04J07042023B04J02322022A15150118141Z202201

2024

10.3724/j.1006-8775.2024.017

热带气象学报(英文版)
中国气象局广州热带海洋气象研究所

热带气象学报(英文版)

影响因子：0.169
ISSN：1006-8775
年,卷(期)：2024.30(2)