CAJ | 학술논문

提利用自动气象站雨量资料、常规观测资料、雷达资料以及 NCEP 再分析资料，对2013年6月30日至7月2日四川遂宁地区特大暴雨过程中高原低涡和西南涡的耦合作用对本次特大暴雨的影响以及低空急流演化特征和强暴雨的关系进行初步探讨。结果表明：当高原涡和西南涡发生耦合时会使得高空低涡发展加强，并激发遂宁暴雨天气的产生。急流为高空低涡的发展提供不稳定能量。超低空急流和低空急流对强降水有提前2 h 的指示意义，低空急流指数增大的过程和降水量的强度成正比关系。
제이용자동기상참우량자료、상규관측자료、뢰체자료이급 NCEP 재분석자료，대2013년6월30일지7월2일사천수저지구특대폭우과정중고원저와화서남와적우합작용대본차특대폭우적영향이급저공급류연화특정화강폭우적관계진행초보탐토。결과표명：당고원와화서남와발생우합시회사득고공저와발전가강，병격발수저폭우천기적산생。급류위고공저와적발전제공불은정능량。초저공급류화저공급류대강강수유제전2 h 적지시의의，저공급류지수증대적과정화강수량적강도성정비관계。
Based on the rain gauge data from automatic weather stations,conventional observations and NCEP analysis data,the extreme rainstorm that hit Suining City from 30 June to 2 July 2013 and the rela-tionship between the extreme rainstorm and the LLJ evolution are studied primarily.This extrem event was caused by the coupling interaction between plateau and southwest vortexes.The results show that the high-level vortex development is strengthened when the coupling interaction occurs between plateau and southwest vortexes,stimulating the generation of rainstorms in Suining City.Jet stream provides unstable energy for the development of high-level vortex.Ultra-low-level jet and low-level jet cannot cause a strong rainfall immediately,and sometimes severe rainfall process may occur two hours later.The degree of in-crease in the low-level jet index (I)and the intensity of rainfall have a direct proportional relationship.