J4 ›› 2004, Vol. 22 ›› Issue (1): 74-79.

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The Preliminary Inquisition of Rain storm in Gansu Province

HUXiang-lai1,GAOQian-zhao2,NIUZhui-rong1,MAZhen-yao1,ZHANGZhen-qiang1   

  1. 1.Gansu Hydrology and Water Resources Bureau,Lanzhou 730000,China;
    2.Cold and Arid Regions environmental and Engineering Research Institute,Chinese Academy of Sciences,Lanzhou 730000,China
  • Received:2004-03-09 Revised:2004-03-15 Online:2004-03-30 Published:2004-03-30

甘肃省暴雨初探

扈祥来1高前兆2牛最荣1马正耀1张正强1   

  1. 1.甘肃水文水资源局,甘肃 兰州 730000;2中科院寒区旱区环境与工程研究所,甘肃 兰州 730000
  • 作者简介:扈祥来(1942-),男,安徽肖县人,高级工程师,主要从事甘肃省水文水资源方面研究.
  • 基金资助:

    水利部项目“中国暴雨及其参数、等值线图修编”

Abstract:

Gansu province is located at northwestern interior of China,and most are as belong to arid region with less rainfall,but rain storm events always occurred with short duration and big intensity characteristics.More over the short duration rain storm created the  record in the world events.The rain storm characteristics and the patterns of time and space distribution area nalysed with emphasis.Measured and investigated maximum feature values of rain storms point over the years are listed,short duration rain storm regression curves with altitude changes are drawn,and the function of outer and include line of maximum points rain storm in the Gansu province is selected in the paper.The paper makes the preliminary in quisition of the rain storm parameter values of mean,extreme,Cv,Cs over the years and the duration distribution and interrelated lines of areas with time change at the typical rain storms etc.

Key words: rainstorm, characteristics, Gansuprovince

摘要:

着重分析甘肃省的暴雨特性与时空分布规律,列举了历年实测和调查最大点暴雨特征值,绘制了短历时暴雨~高程相关线、选配了甘肃最大点暴雨外包线公式,对历年各时段最大暴雨均值、极值、Cv、Cs值等暴雨参数及典型暴雨时程分配和面时关系线等方面作了初步探讨。

关键词: 暴雨, 特性, 甘肃省

CLC Number: