| 河南中南部持续性暴雨水汽输送特征分型 |
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| 引用本文： | 孔海江,王霄,王蕊,吕晓娜.河南中南部持续性暴雨水汽输送特征分型[J].水文,2012(4):37-43. |
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| 作者姓名： | 孔海江 王霄 王蕊 吕晓娜 |
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| 作者单位： | 中国科学院大气物理研究所;中科院研究生院;河南省气象台;中国气象局农业气象保障与应用技术重点开放实验室;河南省气象科技服务中心 |
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| 基金项目： | 中国气象局预报员专项(CMAYBY2012-035);中国气象局农业气象保障与应用技术重点开放实验室项目:河南省关键农事季节连阴雨中期预报方法研究(Z201003);河南黄淮海流域暴雨估测预报系统(Z200801)的联合资助 |
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| 摘 要： | 通过分析1961~2010年发生在河南中南部持续性暴雨的水汽输送特征,从水汽输送角度对河南省中南部(河南省黄河以南地区)的持续性暴雨进行分型,总结出3种水汽输送类型,即西南气流型、螺旋型和"S"型。对比分析这3种类型代表个例的水汽输送和水汽收支特征后发现,河南中南部的持续性暴雨主要是由西南气流型的水汽输送造成的;"S"型和螺旋型水汽输送也是造成河南中南部持续性暴雨的原因之一。西南气流型和螺旋型的水汽输送是造成淮河上游洪涝的主要水汽输送类型,其对应的天气影响系统分别是:高层低槽(低涡)、中低层切变线和台风低压(台风倒槽)。
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| 关 键 词： | 持续性暴雨 水汽输送 水汽收支 河南中南部 |
Characteristics Classification of Water Vapor Transfer of Persistent Torrential Rain in South-central Henan Province |
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| KONG Haijiang,WANG Xiao,WANG Rui,LV Xiaona.Characteristics Classification of Water Vapor Transfer of Persistent Torrential Rain in South-central Henan Province[J].Hydrology,2012(4):37-43. |
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| Authors: | KONG Haijiang WANG Xiao WANG Rui LV Xiaona |
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| Institution: | 1.Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China;2.Graduate University of Chinese Academy of Sciences,Beijing 100049,China;3.Henan Meteorological Observatory,Zhengzhou 450003,China;4.Key Laboratory of Agrometeorological Safeguard and Applied Technique,CMA,Zhengzhou 450003,China;5.Henan Service Center of Meteorological Science and Technology,Zhengzhou 450003,China) |
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| Abstract: | The persistent torrential rains occurred in south-central Henan Province(upper reaches of the Huaihe River Basin) be tween 1961 and 2010 were documented.Their vapor fluxes and transfer were explored.Persistent torrential rains occurred in southcentral Henan Province were classified by viewpoint of vapor transfer.It is summarized that there were three patterns of vapor transfer,southwest-airflow-type,spiral-type and S-type.By analyzing the typical cases,precipitation area,vapor transfer and vapor budget of these three patterns were examined.The vapor transfer of southwest-airflow-type is primary cause of persistent torrential rains occurred in south-central Henan Province.The vapor transfer of the others(spiral-type and S-type) also caused persistent tor rential rains in south-central Henan Province.Moreover,persistent torrential rains with vapor transport of southwest-airflow-type and spiral-type could cause floods in upper reaches of the Huaihe River Basin.The corresponding weather systems,such as trough/low vortex in 500 hPa,shear line in 700/850 hPa or Typhoon low(Typhoon Inverted Trough) also were major weather systems which cause floods in upper reaches of the Huaihe River Basin. |
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| Keywords: | persistent torrential rain vapor transfer vapor budget south-central part of Henan Province |
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