两个相似路径台风引发的东部沿海地区降水分布特征及成因对比分析-海洋预报

两个相似路径台风引发的东部沿海地区降水分布特征及成因对比分析

单位：1. 山东省气象防灾减灾重点实验室, 山东济南 250031;
2. 山东省淄博市气象局, 山东淄博 255000

分类号：P444

出版年·卷·期（页码）：2022·39·第三期（25-36）

摘要：

利用美国国家环境预报中心的再分析资料和中国气象局观测站点的实况降水观测数据,分析了路径相似的1909号台风“利奇马”(Lekima)和0509号台风“麦莎”(Matsa)影响期间东部沿海地区降水强度和落区的明显差异,对比了两个登陆台风的大尺度环流和动热力结构特点。结果表明:台风“利奇马”与西风槽在山东中西部(台风路径西侧)结合,与高空急流入口区右侧的垂直运动相叠加,形成深厚而强烈的上升运动,台风东侧的低空东南急流持续输送水汽,降水增幅明显且中心偏西,台风减弱变缓;同时,东北亚环流受下游台风阻挡稳定少动,降水系统长时间维持是造成突破历史记录极端降水的又一重要原因。与台风“利奇马”不同,台风“麦莎”影响期间大尺度环流没有西风槽和高空急流活动,低层辐合浅薄且上升运动弱,水汽来自减弱的台风环流;台风移动速度快,是台风“麦莎”降水明显小于台风“利奇马”的原因。

Based on the reanalysis data of the National Centers for Environmental Prediction and precipitation data of the China Meteorological Administration observation stations, the significant difference of precipitation intensity and spatial distribution in the eastern coastal area during typhoon "Lekima"(1909) and typhoon "Matsa"(0509) are analyzed, and the characteristics of the large-scale circulation and dynamic thermal structural of the two landing typhoons with similar paths are compared in this paper. The results show that typhoon "Lekima" combined with the westerly trough in the central and western Shandong province(west of the typhoon path) and the vertical movement on the right side of the high-altitude jet inlet area induces a deep and strong upward movement. The low-altitude southeast jet on the east side of the typhoon constantly transports water vapor, which causes the significant increase of precipitation with a westward center and the slowing down of the typhoon intensity weakening. Meanwhile, the northeast Asian circulation is stable since it is blocked by the downstream typhoon, and the long-term maintenance of the precipitation system is another important reason for the extreme precipitation that breaks the historical record. Unlike typhoon "Lekima", there is no westerly trough and highaltitude jet in the large-scale circulation during typhoon "Matsa". The water vapor comes from the weakened typhoon circulation with shallow low-level convergence and weak ascending movement and the typhoon moves fast, which makes the precipitation during typhoon "Matsa" significantly less than that during typhoon "Lekima".

参考文献：

[1] Webster P J,Holland G J,Curry J A,et al.Changes in tropical cyclone number,duration,and intensity in a warming environment[J].Science,2005,309(5742):1844-1846.
[2] Emanuel K.Increasing destructiveness of tropical cyclones over the past 30 years[J].Nature,2005,436(7051):686-688.
[3] 杨玉华,应明,陈葆德.近58年来登陆中国热带气旋气候变化特征[J].气象学报,2009,67(5):689-696.Yang Y H,Ying M,Chen B D.The climatic changes of landfall tropical cyclones in China over the past 58 years[J].Acta Meteorologica Sinica,2009,67(5):689-696.
[4] 罗小莉,姚才,谭金凯.登陆华南台风的频数及强度变化特征分析[J].海洋预报,2018,35(4):58-67.Luo X L,Yao C,Tan J K.Analysis on numbers and intensity characteristics of typhoon landed in the South China[J].Marine Forecasts,2018,35(4):58-67.
[5] 张娇艳,吴立广,张强.全球变暖背景下我国热带气旋灾害趋势分析[J].热带气象学报,2011,27(4):442-454.Zhang J Y,Wu L G,Zhang Q.Tropical cyclone damages in China under the background of global warming[J].Journal of Tropical Meteorology,2011,27(4):442-454.
[6] 冯涛,黄荣辉,杨修群,等.2004年与2006年7-9月西北太平洋上空大尺度环流场与天气尺度波动的差别及其对热带气旋生成的影响[J].大气科学,2016,40(1):157-175.Feng T,Huang R H,Yang X Q,et al.Differences between the large-scale circulations and synoptic-scale waves in JulySeptember 2004 and those in 2006 and their impacts on tropical cyclogenesis over the western North Pacific[J].Chinese Journal of Atmospheric Sciences,2016,40(1):157-175.
[7] 程正泉,陈联寿,李英.登陆台风降水的大尺度环流诊断分析[J].气象学报,2009,67(5):840-850.Cheng Z Q,Chen L S,Li Y.Diagnostic analysis of large-scale circulation features associated with strong and weak landfalling typhoon precipitation events[J].Acta Meteorologica Sinica,2009,67(5):840-850.
[8] 孙密娜,杨洋,姜皓严.影响黄渤海区域两次北上台风的对比分析[J].海洋预报,2018,35(5):74-84.Sun M N,Yang Y,Jiang H Y.Comparative analysis of two northward typhoons affecting the Bohai and Yellow Sea areas[J].Marine Forecasts,2018,35(5):74-84.
[9] 李英,陈联寿,徐祥德.水汽输送影响登陆热带气旋维持和降水的数值试验[J].大气科学,2005,29(1):91-98.Li Y,Chen L S,Xu X D.Numerical experiments of the impact of moisture transportation on sustaining of the landfalling tropical cyclone and precipitation[J].Chinese Journal of Atmospheric Sciences,2005,29(1):91-98.
[10] 方艳莹,钱燕珍,申华羽,等.1822号台风“山竹”引起浙江东北部大暴雨成因分析[J].海洋预报,2020,37(4):86-96.Fang Y Y,Qian Y Z,Shen H Y,et al.Causes analysis on the heavy rainfall in northeastern Zhejiang related to the typhoon“Mangkhut”(1822)[J].Marine Forecasts,2020,37(4):86-96.
[11] 丁治英,张兴强,何金海,等.非纬向高空急流与远距离台风中尺度暴雨的研究[J].热带气象学报,2001,17(2):144-154.Ding Z Y,Zhang X Q,He J H,et al.The study of storm rainfall caused by interaction between the non-zonal high level jet streak and the far distant typhoon[J].Journal of Tropical Meteorology,2001,17(2):144-154.
[12] 丛春华,吴炜,孙莎莎.1949-2012年影响山东地区热带气旋的特征[J].气象与环境学报,2016,32(5):67-73.Cong C H,Wu W,Sun S S.Characteristics of tropical cyclones influencing Shandong Province from 1949 to 2012[J].Journal of Meteorology and Environment,2016,32(5):67-73.
[13] 丁德平,李英.北京地区的台风降水特征研究[J].气象学报,2009,67(5):864-874.Ding D P,Li Y.A study on rainfall features of Beijing associated with typhoons[J].Acta Meteorologica Sinica,2009,67(5):864-874.
[14] 杨亦萍,刘力源,倪钟萍,等.ECMWF对不同天气形势下影响浙江台风的路径预报评估[J].海洋预报,2019,36(2):68-76.Yang Y P,Liu L Y,Ni Z P,et al.Evaluation on ECMWF typhoon track forecast that affects Zhejiang Province under different synoptic situation[J].Marine Forecasts,2019,36(2):68-76.
[15] 陈联寿,丁一汇.西太平洋台风概论[M].北京:科学出版社,1979:1-105.Chen L S,Ding Y H.Introduction to the western Pacific typhoon[M].Beijing:Science Press,1979:1-105.
[16] Atallah E,Bosart L F,Aiyyer A R.Precipitation distribution associated with landfalling tropical cyclones over the eastern United States[J].Monthly Weather Review,2007,135(6):2185-2206.
[17] 丁一汇.高等天气学[M].2版.北京:气象出版社,2005:138-149.Ding Y H.Advanced synoptic meteorology[M].2nd ed.Beijing:Meteorological Press,2005:138-149.

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