| 引用本文: | 姜雨彤,郭宁,马勇星,等.1960-2016年陕西省极端气温的时空变化研究[J].灌溉排水学报,0,():-. |
| jiangyutong,guoning,mayongxing,et al.1960-2016年陕西省极端气温的时空变化研究[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】研究陕西省极端气温事件时空变化规律，为陕西省防灾减灾和应对气候变化提供参考依据。【方法】根据1960～2016年陕西省36个气象站年逐日气温资料计算得到16个极端气温指数，并运用线性倾向法、M-K突变检验法、小波分析法对其进行分析。【结果】结果表明，1）时间上极端冷指数呈现下降趋势，极端暖指数则相反；近60年有10个指数发生突变且集中在1985～2005年，极端冷指数由相对偏多期跃变为相对偏少期，极端暖指数则相反；各季度平均气温均以11年、16年、29年为周期，29年为主周期（冬季以9年为主周期除外）；2）空间上冷指数在靖边等大部分地区呈下降趋势，而暖指数在泾河等大部分地区呈上升趋势，其余指数在陕北、关中和陕南地区有不同的变化趋势；3）极端气温与全球变暖和城市化建设有一定的关系，但对纬度的响应并不显著。【结论】综上可知，陕西省近60年来极端气温表现明显，且有周期与突变表现，全球变暖与城市化建设对此有一定的贡献，但纬度变化与极端气温的空间变化相关性不大。 |
| 关键词: 极端气温；时空变化；趋势分析；M-K突变检验；小波分析；陕西省； |
| DOI： |
| 分类号:P467 |
| 基金项目:陕西省科技统筹创新计划项目(2016KTZDNY-01-01)；西北农林科技大学大学生创新训练项目(X201910712365) |
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| Extreme Temperature Events in Shannxi Province from 1960 to 2016 |
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jiangyutong, guoning, mayongxing, wurong, zhangxin
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Northwest A and F University, College of Water Resources and Architectural Engineering
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| Abstract: |
| 【Objective】The objective is to study the temporal and spatial variation law of extreme temperature events in shaanxi province, and to provide reference for disaster prevention and mitigation and climate change response in shaanxi province.【Method】Some experiment were conducted according to the daily temperature data of 36 meteorological stations in shaanxi province from 1960 to 2016, 16 extreme temperature indexes were calculated and analyzed by linear tendency method, M-K mutation test method and wavelet analysis method.【Results】The results showed that 1) the extreme cold index showed a downward trend in time, while the extreme warm index showed a reverse trend; In the past 60 years, 10 indexes changed suddenly and were concentrated from 1985 to 2005. The extreme cold index changed from relatively multi-phase transition to relatively low-phase transition, while the extreme warm index was reversed. The average temperature of each quarter is 11a, 16a and 29a, with 29a as the main period (except 9 years in winter); 2) the spatial cold index shows a downward trend in most areas such as jingbian, while the warm index shows an upward trend in most areas such as jing river, while other indexes show different trends in northern shaanxi, central shaanxi and southern shaanxi; 3) there is a certain relationship between extreme temperature and global warming and urbanization, but the response to latitude is not significant. 【Conclusion】To sum up, it can be seen that in the past 60 years, the extreme temperature in shaanxi province has been significantly manifested in cycles and mutations, to which global warming and urbanization construction have contributed, but the spatial change of latitude and extreme temperature has little correlation. |
| Key words: Extreme temperatures; Spatiotemporal change; Trend analysis; M-k mutation test; Wavelet analysis; Shaanxi province; |
