高原气象

高原气象 >

2018 , Vol. 37 >Issue 1: 68 - 77

DOI: https://doi.org/10.7522/j.issn.1000-0534.2017.00031

论文

基于HYSPLIT4的一次新疆天山夏季特大暴雨水汽路径分析

  • 姚俊强 ,
  • 杨青 ,
  • 毛炜峄 ,
  • 韩雪云
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  • 中国气象局乌鲁木齐沙漠气象研究所, 新疆 乌鲁木齐 830002;中亚大气科学研究中心, 新疆 乌鲁木齐 830002;新疆维吾尔自治区气候中心, 新疆 乌鲁木齐 830002

收稿日期: 2016-11-05

  网络出版日期: 2018-02-28

基金资助

国家自然科学基金项目（41605067，41375101）；中国沙漠气象科学研究基金项目（Sqj2015012）；中国博士后科学基金项目（2016M592874）

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Analysis of a Summer Rainstorm Water Vapor Paths in Tianshan Mountains (Xinjiang) Based on HYSPLIT4 Model

  • YAO Junqiang ,
  • YANG Qing ,
  • MAO Weiyi ,
  • HAN Xueyun
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  • Institute of Desert Meteorology, China Meteorological Administration, Urumqi 830002, Xinjiang, China;Central Asia Research Center of Atmosphere Science, Urumqi 830002, Xinjiang, China;Xinjiang Climate Central, Urumqi 830002, Xinjiang, China

Received date: 2016-11-05

  Online published: 2018-02-28

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摘要

利用新疆维吾尔自治区105个观测站气象资料、NCEP/NCAR再分析资料，引入拉格朗日混合单粒子轨道模型（HYSPLIT_v4），定量分析了2004年7月17-21日新疆天山山区特大暴雨的水汽输送情况。结果表明，2004年7月17-21日暴雨降水主要以天山山区为主，暴雨过程的水汽主要来自700 hPa，水汽输送路径有3条，其中偏北路径有2条，另1条为偏西路径；暴雨的水汽源地主要有3个，其中超过50%的水汽来自阿拉伯海以北-里海-巴尔喀什湖地区的水汽输送贡献，其次是波罗的海-北冰洋沿岸地区，占到26%，而鄂霍次克海以东地区为21%；伊朗高压北抬与欧洲脊东移形成的乌拉尔脊叠加是暴雨过程的主导系统，中亚低涡东南移动形成强降水。同时，对流层高层的副热带西风急流和低层的偏东低空急流对强降水的水汽输送和辐合有重要影响。

关键词： 天山; 拉格朗日方法; 水汽路径; 暴雨

本文引用格式

姚俊强 , 杨青 , 毛炜峄 , 韩雪云 . 基于HYSPLIT4的一次新疆天山夏季特大暴雨水汽路径分析[J]. 高原气象, 2018 , 37(1) : 68 -77 . DOI: 10.7522/j.issn.1000-0534.2017.00031

Abstract

By using the data from 105 meteorological stations in Xinjiang, the NCEP/NCAR data and the HYSPLIT4 Model, the water vapor transportation of the rainstorm occurring in the Tianshan Mountains, Xinjiang, on 17-21 July 2004 were analyzed quantitatively.The results show that the rainstorm mainly occurred in the Tianshan Mountain region; the Ural ridge isthe dominant systems in the process because of the development of Iran high and European ridge pile up.During the process of water vapor transport, it was significantly influenced by the combined action of the subtropical westerly jet and the east low-level jet.The water vapor mainly comes from the level of 700 hPa, there are three moisture transport paths at the level of 700 hPa, two in the north and another in west.Three water vapor sources have been found at 700 hPa.Water vapor coming from the region of Arabian Sea, Caspian Sea to Balkhash Lake has the maximum contribution rate (53%), followed by the Baltic Sea to the Arctic coast region (26%), and the Okhotsk Sea region contribute less relatively (21%).This indicates that the abnormal water vapor transpiration over the upstream areas provides with a good indication for the extreme precipitation.

Key words： Tianshan Mountain; Lagrangian trajector; water vapor path; rainstorm

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