| 鲁中地区近35年不同历时降水变化特征 |
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| 引用本文： | 环海军,刘 岩,夏福华.鲁中地区近35年不同历时降水变化特征[J].新疆气象,2018,12(5):83-89. |
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| 作者姓名： | 环海军 刘 岩 夏福华 |
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| 作者单位： | 山东省淄博市气象局,山东省淄博市气象局,山东省淄博市气象局 |
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| 基金项目： | 山东省气象局气象科学技术研究项目“鲁中地区极端降水事件时空变化特征及暴雨强度公式分区研究”（2016sdqxm13） |
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| 摘 要： | 利用鲁中地区8个气象站1980-2014年逐日降水资料，分析不同持续时间不同强度降水的时空变化规律。结果表明：鲁中地区近35年无特大暴雨发生，降水发生频率随降水强度和持续时间的增加而减少，降水频率与降水强度的变化规律基本一致。1日降水除小雨外，其他强度降水发生次数均呈增加趋势，最多发生在7月，大暴雨的降水强度除沂源外，其他地区呈增加趋势，暴雨降水强度在中部平原和南部山区呈增加趋势，除大暴雨外，其他不同强度降水年均发生次数主要空间变化规律一致，但在第二特征向量上存在差异；持续2日降水除暴雨年均发生次数随时间呈增加趋势外，其他强度降水均呈减少趋势，暴雨的降水强度除中西部平原外，其他地区呈增加趋势，大雨和小雨最多出现在8月，暴雨和中雨出现在7月，暴雨中北部平原最多，大雨东部平原最多，中雨、小雨山区最多；持续3日中雨和小雨年均发生次数随时间呈增加趋势，降水强度在多数地区呈增加趋势，最多出现在8月，山区最多；持续4日、5日小雨年均发生次数随时间呈减少趋势，降水强度在多数地区呈减少趋势，最多分别出现在8月、9月，空间分布均匀。
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| 关 键 词： | 降水事件 持续时间 降水强度 鲁中地区 |
| 收稿时间： | 2017/12/5 0:00:00 |
| 修稿时间： | 2018/5/10 0:00:00 |
Variation of precipitation with different duration in recent 35 years in the Middle Area of Shandong Province |
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| HUAN Hai-jun,LIU yan and XIA Fu-hua.Variation of precipitation with different duration in recent 35 years in the Middle Area of Shandong Province[J].Bimonthly of Xinjiang Meteorology,2018,12(5):83-89. |
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| Authors: | HUAN Hai-jun LIU yan and XIA Fu-hua |
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| Institution: | Zibo Meteorological Bureau of Shandong province,Zibo,Zibo Meteorological Bureau of Shandong province,Zibo,Zibo Meteorological Bureau of Shandong province,Zibo |
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| Abstract: | Based on the daily precipitation data from 1980 to 2014 of eight weather stations in the middle area of Shandong Province, temporal and spatial variation of precipitation with different durations and different intensity was analyzed. The results show that no extraordinary rainstorm happened in recent 35 years, and occurrence frequency of other precipitation decreased with the increasing intensity and durations of precipitation, the variations of occurrence frequency and intensity of precipitation are the same. Annual precipitation occurrence lasted for one day increase except light rain, what most happened in July, the intensity of heavy rain has a increased trend except YiYuan, and the intensity of rainstorm increase in the mid plain and the southern mountain. In addition to large rainstorm, the main spatial changes of the other precipitation with different intensity are the same, but what have different spatial changes in the second feature vectors. Precipitation lasted for two days with different intensity decreased except rainstorm of increase, the intensity of rainstorm increase except mid-western plain, most of the heavy rain and light rain happen in August, what are in July for moderate rain and rainstorm, most of the occurrences of rainstorm happen in the mid-northern plain, what happen in the east plain of heavy rain, and moderate rain and light rain happen in the mountain areas mostly. The annual moderate rain and light rain lasted for three days have an increase trend with time, and the intensity of them also have an increased trend, what most happened in August and mountain areas. The annual light rain lasted for four days and five days decrease with time, and the intensity of it also has a decreased trend, what mostly happen in August and September differently, and the spatial distribution is uniform. |
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| Keywords: | Precipitation events Duration time Precipitation intensity Middle Area of Shandong Province |
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