CAJ | 학술논문

应用探空资料、加密自动站、卫星云图资料，对2012年8月3～4日受10号热带风暴“达维”影响的辽宁省台风暴雨过程进行了诊断分析，结果表明：台风登陆后进入中纬度西风环流带，产生的暴雨由台风自身暴雨和台风远距离暴雨组成；台风登陆后进入中纬度西风环流带，地面摩擦和西风带高空急流分别从地面和高空消耗台风动能，尤其是西风带高空急流对改变台风的结构和性质起了重要作用；台风登陆后进入中纬度西风环流带，切断了热量和水汽供应来源，并且自身热量和水汽耗散快，因此台风气旋暴雨持续时间短、影响范围小；相反，台风热量和水汽通过低空东南急流以波的形式向北方输送。向北伸展的能量锋区有向东部海上暖湿环境偏移的可能。台风远距离暴雨出现在东南急流上高能高湿辐合区域，降水强度要强于台风暴雨，降水过程持续时间比台风暴雨长；台风暴雨和台风远距离暴雨都是中尺度天气系统，这两者发生在台风气旋和台风向北伸展的低空切变线上。台风暴雨是由台风减弱后的热带低压涡旋云系产生的暴雨；台风远距离暴雨发生在台风向北伸展的低空切变线上，是强对流短时暴雨，因此，判定低空切变线的位置是确定台风远距离暴雨的重要依据。而由于探空资料时效性较差，可以通过地面暖锋过境的时间来判断，台风远距离暴雨发生在暖锋锋前。
응용탐공자료、가밀자동참、위성운도자료，대2012년8월3～4일수10호열대풍폭“체유”영향적요녕성태풍폭우과정진행료진단분석，결과표명：태풍등륙후진입중위도서풍배류대，산생적폭우유태풍자신폭우화태풍원거리폭우조성；태풍등륙후진입중위도서풍배류대，지면마찰화서풍대고공급류분별종지면화고공소모태풍동능，우기시서풍대고공급류대개변태풍적결구화성질기료중요작용；태풍등륙후진입중위도서풍배류대，절단료열량화수기공응래원，병차자신열량화수기모산쾌，인차태풍기선폭우지속시간단、영향범위소；상반，태풍열량화수기통과저공동남급류이파적형식향북방수송。향북신전적능량봉구유향동부해상난습배경편이적가능。태풍원거리폭우출현재동남급류상고능고습복합구역，강수강도요강우태풍폭우，강수과정지속시간비태풍폭우장；태풍폭우화태풍원거리폭우도시중척도천기계통，저량자발생재태풍기선화태풍향북신전적저공절변선상。태풍폭우시유태풍감약후적열대저압와선운계산생적폭우；태풍원거리폭우발생재태풍향북신전적저공절변선상，시강대류단시폭우，인차，판정저공절변선적위치시학정태풍원거리폭우적중요의거。이유우탐공자료시효성교차，가이통과지면난봉과경적시간래판단，태풍원거리폭우발생재난봉봉전。
Applying the sounding data , encrypted automatic station data and satellite cloud picture data , we diagnosed and an-alyzed the typhoon rainstorm process on August 3rd~4th, 2012 in Liaoning, which was caused by the tropical storm No .10 “Da-wei”.The results indicated that:after landing , the typhoon entered into the mid-latitude westerly circulation zone , the generated rainstorm was composed of the own rainstorm of the typhoon and the rainstorm far from the typhoon ;the ground friction and the west-erly upper-level jet stream consumed the kinetic energy of the typhoon from the ground and high altitude respectively , especially the westerly upper-level jet stream played an important role in changing the structure and property of the typhoon ; the typhoon cut off the sources of heat and moisture supply , and its own heat and moisture dissipated fast .So the typhoon cyclone rainstorm lasted for a short time, and its influential range was small .On the contrary, the heat and moisture of the typhoon transported through the low -level southeast jet stream to the north in the form of waves .The energy frontal zone extending to the north probably moved into the eastern maritime warm and humid environment .The rainstorm far from the typhoon appeared in the high-energy and high-moisture convergence region of the southeast jet stream , its precipitation intensity was stronger than that of the typhoon rainstorm , and its pre-cipitation process lasted for a longer time than that of the typhoon rainstorm .Both the own rainstorm and the remote rainstorm of the typhoon were mesoscale weather systems , and they occurred in the cyclone and northward-stretched low-level shear line of the ty-phoon .The typhoon rainstorm was produced by the tropical low-pressure vortex cloud system after the typhoon weakened;the remote rainstorm of the typhoon was the short-time strong-convection rainstorm , and it occurred in its northward-stretched low-level shear line.Therefore, the position of low-level shear line was an important basis for determining the remote rainstorm of the typhoon .Be-cause the sounding data had relatively poor timeliness , the time when the ground warm front passed through a place could be used to judge the remote rainstorm of the typhoon , which occurred in the front of the warm front .