自然资源学报 ›› 2008, Vol. 23 ›› Issue (4): 694-704.doi: 10.11849/zrzyxb.2008.04.017

• 资源评价 • 上一篇    下一篇

安徽省沿淮地区梅雨特征及其时空分布分析

郁家成1, 黄小燕1, 郁阳1, 陈晓红2, 王华3   

  1. 1. 安徽农业大学 资源与环境学院,合肥230036;
    2. 安徽省气象局,合肥230061;
    3. 安徽省民政厅,合肥230061
  • 收稿日期:2007-07-09 修回日期:2007-12-14 出版日期:2008-07-28 发布日期:2008-07-28
  • 作者简介:郁家成(1949- ),男,副教授,硕士生导师,安徽省气象学会副理事长,主要研究应用气候和农业气候。E-mail:yjcand@163.com
  • 基金资助:

    安徽省教育厅自然科学研究项目"安徽省沿淮地区设施种养小气候效应及其防洪减灾技术模式研究(2002kj104)";安徽省级横向合作研究项目"安徽省自然灾害分析及其对社会经济影响的评估研究"。

Analysis of Characteristics and Space-time Distribution of Plum Rains in the Regions along Huaihe River in Anhui Province

YU Jia-cheng1, HUANG Xiao-yan1, YU Yang1, CHEN Xiao-hong2, WANG Hua3   

  1. 1. College of Resources and Environmental Sciences, Anhui Agricultural University, Hefei 230036, China;
    2. Anhui Province Meteorological Bureau, Hefei 230061, China;
    3. Anhui Province Civil Administration Hall, Hefei 230061, China
  • Received:2007-07-09 Revised:2007-12-14 Online:2008-07-28 Published:2008-07-28

摘要: 论文在探索安徽沿淮地区梅雨期(包括入梅期、出梅期和梅雨长度)、梅雨量和梅雨强度(包括梅期平均日雨量、雨量梅年比、梅期暴雨日数和梅雨强度指数)特征的基础上,着重分析了安徽沿淮地区梅雨期、梅雨量和梅雨强度的年际变化以及安徽沿淮一带11站梅期雨量和雨强地域分布的差异性。结果发现:①安徽沿淮地区多年平均梅雨期为24d(6月16日入梅, 7月10日出梅),梅雨量为221.9mm,梅期日雨量为8.6mm,雨量梅年比为22.3%,暴雨日数为1.3d,梅雨强度指数为4.0;②沿淮历年梅雨特征量均呈明显的波动趋势;③沿淮梅期雨量和雨强年际变化的平均波动周期约为9年,但随年代推移具有振幅减小和频率加快的特点;④安徽沿淮自西向东各站梅期雨量和雨强均呈"升—降—升"S型分布趋势。这些发现对于沿淮各地气候研究和天气预报具有重要的参考价值。

关键词: 安徽沿淮地区, 梅雨特征, 时空分布, 趋势分析

Abstract: Based on the exploration of the characteristics of the plum rains spell (include the beginning date of the plum rains period, the end date of the plum rains period and plum period length),plum rains amount and plum rains intensity(include average daily figures of rainfall, the quotient of plum rains amount to annual amount, storm rainfall days during plum rains spell and intensity index of plum rains),the annual change characteristics of the plum rains spell,the plum rains amount and the plum rains intensity and others about plum rains amount and intensity of 11 stations were emphatically analyzed. The results are:1)The average plum rains spell is 24 days(the beginning date of the plum rains period is on June 16,the end date of plum rains period is on July 10),the plum rains amount is 221.9 mm, average daily figures of rainfall is 8.6 mm, the pluviometric quotient of plum rains amount to annual amount is 22.3%, the storm rainfall day is 1.3d, the intensity index of plum rains is 4.0 in the regions along Huaihe River in Anhui Province. 2) There is a trend of fluctuation in all of the items of plum rains character in the regions along Huaihe River.3) There is a nine-year fluctuation cycle in the items of plum rains character, and there are characteristics of decreasing amplitude and increasing frequency with the elapse of time. 4) The plum rains amount and intensity of 11 stations from west to east along Huaihe River in Anhui Province presents an "S-shaped" trend of "up-down-up". These results are of important referential values for the climatic research and weather forecast of the regions along Huaihe River.

Key words: regions along Huaihe River in Anhui, the characteristics of the plum rains, space-time distribution, trend analysis

中图分类号: 

  • P426.61+4