呼和浩特近50a短时强降水统计特征

doi:10.7522/j.issn.1000-0240.2017.0060

冰川冻土 ›› 2017, Vol. 39 ›› Issue (3): 534-539.doi: 10.7522/j.issn.1000-0240.2017.0060

呼和浩特近50a短时强降水统计特征

马素艳¹, 李林惠²

1. 内蒙古自治区气象台, 内蒙古呼和浩特 010051;
2. 内蒙古自治区气象局, 内蒙古呼和浩特 010051

收稿日期:2017-01-09 修回日期:2017-03-16 出版日期:2017-06-25 发布日期:2017-09-09
作者简介:马素艳(1982-),女,内蒙古呼伦贝尔人,工程师,2013年在南京信息工程大学获硕士学位,从事短期天气预报研究.E-mail:may6117@sina.com.
基金资助:
中国气象局预报员专项（CMAYBY2015-011）；内蒙古自治区气象局青年基金项目（nmqnqx201509）资助

A study of temporal-spatial distribution characteristics of short-term heavy rainfall in Hohhot from 1961 through 2010

MA Suyan¹, LI Linhui²

1. Inner Mongolia Autonomous Region Meteorological Observatory, Hohhot 010051, China;
2. The Inner Mongolia Regional Meteorological Bureau, Hohhot 010051, China

Received:2017-01-09 Revised:2017-03-16 Online:2017-06-25 Published:2017-09-09

摘要/Abstract

摘要： 利用呼和浩特市1961-2010年6个国家气象观测站逐小时降水量资料，应用数理统计、滑动平均和M-K突变检验分析了呼和浩特市短时强降水时空分布特。结果表明：呼和浩特市短时强降水频次的空间分布不均匀，主要分布在呼和浩特市南部及山脉迎风坡；呼和浩特市短时强降水具有明显的季节变化和日变化特征，短时强降水频次最高在7月下旬和8月上旬，最容易发生在午后至傍晚，年代和年变化显示20世纪90年代为正距平，1993年之后，呼和浩特市短时强降水次数呈上升趋势，1997年通过显著性检验水平临界线，即呈明显上升趋势，1998年达到峰值。

关键词: 呼和浩特, 短时强降水, 时空分布

Abstract: Based on the daily precipitation data from 1961 through 2010 at six meteorological stations in Hohhot, the temporal-spatial distribution characteristics of the short-term heavy rainfall were analyzed with mathematical statistics, moving average and Mann Kendall test. The results indicate that the temporal-spatial distribution of short-term heavy rainfall was extremely uneven, with the maximum in south of Hohhot and along the windward slopes of mountains. In this period, the short-term heavy rainfall event has obvious characteristics of annual cycle and daily variation. The short-term heavy rainfall frequency occurs in later July or early August. A majority of short-term heavy rainfall events often occur in afternoon and evening. Annual and interannual variations of short-term heavy rainfall events showed a positive anomaly in the 1990s; the short-term heavy rainfall frequency in Hohhot showed that there was a rising trend since 1993, and past the critical line of significant test in 1997, and then had a distinct upward trend and reached a peak in 1998.

Key words: Hohhot, the short-term heavy rainfall, temporal-spatial distribution

中图分类号:

P468.0+24

马素艳, 李林惠. 呼和浩特近50a短时强降水统计特征[J]. 冰川冻土, 2017, 39(3): 534-539.

MA Suyan, LI Linhui. A study of temporal-spatial distribution characteristics of short-term heavy rainfall in Hohhot from 1961 through 2010[J]. JOURNAL OF GLACIOLOGY AND GEOCRYOLOGY, 2017, 39(3): 534-539.

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呼和浩特近50a短时强降水统计特征

A study of temporal-spatial distribution characteristics of short-term heavy rainfall in Hohhot from 1961 through 2010

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