MA Shan,CAO Yan-ran,ZHANG Zhi,et al.Climatic Change Tendency and Mutation Analysis of SongPan County, The Source of Minjiang River[J].Journal of Chengdu University of Information Technology,2017,(05):550-553.[doi:10.16836/j.cnki.jcuit.2017.05.014]
岷江源头松潘县气候变化趋势与突变性分析
- Title:
- Climatic Change Tendency and Mutation Analysis of SongPan County, The Source of Minjiang River
- 文章编号:
- 2096-1618(2017)05-0550-04
- 关键词:
- 地理科学; 气候变化; 松潘县; Mann-Kendall法
- 分类号:
- P426.61+4
- 文献标志码:
- A
- 摘要:
- 岷江源头位于松潘县,分析松潘县的气候变化特征,对岷江流域水资源的开发利用有借鉴作用,但目前关于松潘县的气候变化特征还没有详细的整体性研究。为了解松潘县气候的变化规律和突变性,采用5年滑动平均,趋势分析和Mann-Kendall检验法对松潘县1956-2011年逐月、逐年的平均气温和平均降水进行研究,得出以下结论:(1)松潘县近55年来各季节的平均气温呈变暖趋势,显著变暖发生在20世纪90年代以后,其中年平均气温在80年代发生了突变。(2)各季节平均降水量呈现不同趋势,年平均降水量总体变化不大,年平均降水量在1973年和1978年发生了突变。
- Abstract:
- The source of the Minjiang river is located in Songpan county, and to analyze the characteristics of climate change of Songpan county will be helpful for development and utilization of water resources in Minjiang river basin. But there was no detailed and overall study about the climate change characteristics of Songpan county, and in order to understand the climate change rule and abrupt change of it, Variation of 5 a Rounning Mean, Amulti-year trend line and Mann-Kendall rank analysis methods were used to analyze monthly, yearly average temperature and precipitation data of Songpan in 1956-2011. It comes to the conclusions as following:(1)The annual temperature in each season showed a warming trend in Songpan county in recent 55 years, and after 90's, average temperature in each season shows a significant warming trend. The annual average temperature was mutated in the 80's.(2)The trend change of average precipitation in each season is different. The annual average temperature change slightly, and was muted in 1973 and 1978.
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备注/Memo
收稿日期:2017-04-06 基金项目:四川省教育厅资助项目(16ZB0303)