An Analysis on Factors of An Extra Rainstorm Causing Disaster in July 14 in Fufeng County

GUO Jun-li; HAN Jing-wei

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An Analysis on Factors of An Extra Rainstorm Causing Disaster in July 14 in Fufeng County

- An Analysis on Factors of An Extra Rainstorm Causing Disaster in July 14 in Fufeng County
- Bulletin of Soiland Water Conservation Vol. 24, Issue 4, Pages: 87-90(2005)
- 作者机构：
  
  宝鸡文理学院陕西省灾害监测与机理模拟重点实验室,陕西,宝鸡,721007
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- Published：2005
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GUO Jun-li, HAN Jing-wei. An Analysis on Factors of An Extra Rainstorm Causing Disaster in July 14 in Fufeng County[J]. Bulletin of Soiland Water Conservation, 2005, 24(4): 87-90.
DOI：

GUO Jun-li, HAN Jing-wei. An Analysis on Factors of An Extra Rainstorm Causing Disaster in July 14 in Fufeng County[J]. Bulletin of Soiland Water Conservation, 2005, 24(4): 87-90. DOI：

摘要

依据有关资料和灾后调查

对扶风县2004年7.14特大暴风雨灾害的成灾背景、灾害过程和灾情进行了分析。认为扶风县的地形、地表结构有利于局地强对流天气的形成和发生;前期持续性干旱为7.14暴风雨灾害蓄积了能量;7月13日

14日西南暖湿气流、高空冷涡临境和冷锋过境是7.14灾害生成的直接原因;塬区边坡动力增强和县城区位是县城成为暴风雨中心区的重要原因;域区空间狭小、社会经济高度密集、排水不畅、重抗旱、轻防涝的防灾思想均是重要的致灾因素。要警惕小区域成大灾

加强小区域灾害的研究和防抗救援工作。

Abstract

According to related data and investigation after the disaster

we analyzed the background

process and situation of the disaster caused by extra rainstorm in July 14.It is concluded that landform and earth's surface structure in Fufeng county are useful to the formation and occurrence of strong convective weather in some areas

sustaining drought in the former period cumulated energy for the disaster

direct reasons causing the disaster are warm-moist air flow from southwest

cool whirlpool in high altitude and cold front passing Fufeng county in July 13 and 14

enhancement of dynamic of plateau form slope and the location of the county seat are important reasons causing county seat being center area of the rainstorm.The important factors causing the disaster also include that urban space is narrow and small

social economy is highly intensive in urban region

drainage system is jammed seriously and the thought preventing natural disaster pay more attention to fight droughts and look down upon flood disaster.Therefore

it should be on guard that catastrophe occurs in small region.The research and prevention of small region disaster should be intensified.

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