沙漠与绿洲气象
沙漠與綠洲氣象
사막여록주기상
DESERT AND OASIS METEOROLOGY
2011年
4期
35-39
,共5页
寒潮%环流形势%物理量特征%动力机制
寒潮%環流形勢%物理量特徵%動力機製
한조%배류형세%물리량특정%동력궤제
cold wave%circulation pattern%physical quantities characteristics%dynamic mechanism
综合利用常规天气观测资料、美国NCEP／NCAR再分析资料、ECMWF及T-639数值预报产品，对2010年3月27—29日新疆寒潮天气过程的环流形势演变、动力机制、物理量、卫星云图特征进行了分析。结果表明，此次强寒潮来源于欧洲中部，属西方路径，强冷空气经过黑海-咸海-中亚地区入侵新疆；造成强降水的原因是西方冷空气与中亚南支槽东移北上的暖湿气流在伊犁河谷、天山山区和北疆沿天山一带汇合，并配合动力作用和水汽条件共同形成的。
綜閤利用常規天氣觀測資料、美國NCEP／NCAR再分析資料、ECMWF及T-639數值預報產品，對2010年3月27—29日新疆寒潮天氣過程的環流形勢縯變、動力機製、物理量、衛星雲圖特徵進行瞭分析。結果錶明，此次彊寒潮來源于歐洲中部，屬西方路徑，彊冷空氣經過黑海-鹹海-中亞地區入侵新疆；造成彊降水的原因是西方冷空氣與中亞南支槽東移北上的暖濕氣流在伊犛河穀、天山山區和北疆沿天山一帶彙閤，併配閤動力作用和水汽條件共同形成的。
종합이용상규천기관측자료、미국NCEP／NCAR재분석자료、ECMWF급T-639수치예보산품，대2010년3월27—29일신강한조천기과정적배류형세연변、동력궤제、물리량、위성운도특정진행료분석。결과표명，차차강한조래원우구주중부，속서방로경，강랭공기경과흑해-함해-중아지구입침신강；조성강강수적원인시서방랭공기여중아남지조동이북상적난습기류재이리하곡、천산산구화북강연천산일대회합，병배합동력작용화수기조건공동형성적。
Based on the conventional surface and upper observation data, NCEP reanalysis data and the products of ECMWF model and T639 model,the circulation patterns,evolution feature, dynamisms mechanism and physical quantity of the cold wave weather process during 27-29 th March 2010 were further studied, as well as satellite cloud data. The analysis confirmed that this strong cold wave came from the middle part of Europe to be the path of Western;the strong cold air moved east,over Black Sea,Aral Sea and central Asia,and then broke into Xinjiang;the main reason of heavy precipitation was due to the cold air from west and the warm air from the southern branch trough of central Asia converged at Yili river valley, Tianshan Mountains and the area along the northern Tianshan mountains,and the combination with the dynamic action and the conditions of water vapor.
