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CPS法对影响江苏台风的适用性研究
喜度1, 韩桂荣2, 殷笑茹3, 李杨2, 刘寅1, 唐云志1
(1.江苏省气象探测中心;2.江苏省气象台;3.江苏省气象信息中心)
A STUDY ON THE APPLICABILITY OF CPS METHOD TO TYPHOONS AFFECTING JIANGSU
Xi Du1, HAN Gui-rong2, YIN Xiao-ru3, LI Yang2, Liu Yin1, Tang Yun-zhi1
(1.Jiangsu Meteorological Observation Center;2.Jiangsu Meteorological Observatory;3.Jiangsu Meteorological Information Center)
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投稿时间:2018-10-08    修订日期:2020-04-22
中文摘要: 利用NCEP-FNL 1°×1°再分析资料、江苏省地面自动站资料以及长三角地区新一代天气雷达资料,使用CPS(气旋相空间,cyclone phase space)法对2000-2015年影响江苏台风的相空间参数进行统计分析。经过和台风年鉴比对,CPS法能较为客观准确地描述各类路径影响江苏台风的变性过程,而结果表明:影响江苏的台风发生变性的多为登陆北上、变性前强度较强的台风。进一步分析Haikui和Matmo两个CPS轨迹不同的台风相空间参数,发现其参数轨迹能较好地反映台风变性过程中的热力结构和环流特征演变,与台风降水的落区和强度有一定关联, CPS参数变化明显的Haikui台风降水范围和强度变化较大,参数变化较小的Matmo台风降水基本位于台风本体周边。
Abstract:Based on NCEP-FNL reanalysis data (1°×1°), observed data from automatic weather stations in Jiangsu and new generation weather radar data in Yangtze River Delta area, cyclone phase space (CPS) method is used to analyze the phase space parameters of typhoons affecting Jiangsu from 2000 to 2015. Results show that CPS method could objectively and accurately describe the transition process of typhoons in Jiangsu affected by various paths according to Typhoon Almanac(CMA-STI). Typhoons affecting the transition of typhoons in Jiangsu mostly landing northward and show strong intensity before the transition. We further analyze phase space parameters of Haikui and Matmo with different CPS trajectories. Results show that the phase space parameter well reflects the evolution of the thermal structure and environmental characteristics during the transition process of typhoon, and relates to the location and intensity of typhoon precipitation. Haikui with obvious CPS parameter changing process has significant changes in the location and intensity of typhoon precipitation. Matmo with small CPS change basically rains around the typhoon itself.
文章编号:201810080430     中图分类号:P412    文献标志码:
基金项目:江苏省“333工程”科研项目(BRA17521)、江苏省气象局科研基金面上项目(KM202005)、江苏省自然科学基金(BK20161074)、和江苏省气象局开放研究基金(BJG201511)共同资助
引用文本:
喜度,韩桂荣,殷笑茹,李杨,刘寅,唐云志,0.[en_title][J].Meteor Mon,():-.
Xi Du,HAN Gui-rong,YIN Xiao-ru,LI Yang,Liu Yin,Tang Yun-zhi,0.A STUDY ON THE APPLICABILITY OF CPS METHOD TO TYPHOONS AFFECTING JIANGSU[J].Meteor Mon,():-.