| 摘要: |
| 该文选取毕节市1960—2019年8个国家站逐日气温数据，利用线性倾向估计、滑动平均、M-K突变检验法等统计分析方法分析讨论了毕节市气温的时空变化特征。结果表明：毕节市年平均气温、年平均日最低气温、年平均日最高气温空间分布受地形分布影响较为明显，表现为在威宁、大方存在低值区，在毕节市东部存在高值区；其气候倾向率均表现为明显的上升趋势，呈现为年平均日最低气温＞年平均气温＞年平均日最高气温的分布形式；根据M-K突变检验结果分析：毕节市气温在20世纪90年代末期以前上升趋势均不明显，90年代末期以后均表现为明显的上升趋势，且年平均气温、年平均日最低气温、年平均日最高气温分别在2006年、2002年、2007年发生序列的突变。 |
| 关键词: 毕节市；气温；时空分布 |
| DOI： |
| 投稿时间：2021-01-29 |
| 基金项目: |
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| Spatial and Temporal Distribution of Temperature in Bijie City in Recent 60 Years |
| SHI Qianwen,KE Liping,YANG Yang,MAO Qian,ZHAO Tingfei |
| (Zhijin Meteorological Bureau of Guizhou Province,Zhijin 552100 , China;Weining Meteorological Bureau of Guizhou Province,Weining 553100 , China;Rongjiang Meteorological Bureau of Guizhou Province,Rongjiang 557200 , China) |
| Abstract: |
| Based on the daily temperature data of 8 national stations in Bijie city from 1960 to 2019, the spatial and temporal characteristics of temperature in Bijie are analyzed by using the methods of linear trend estimation, moving average and M-K mutation test. The results show that the spatial distribution of annual mean, annual mean daily minimum and annual mean daily maximum temperature in Bijie are obviously affected by the terrain distribution, which shows that there are with low value areas in Weining and Dafang, and high value areas in the eastern part of Bijie. And the climate tendency rate showed an obvious upward trend, showing the distribution form of annual mean daily minimum temperature ＞ annual mean temperature ＞ annual mean daily maximum temperature. According to the analysis of M-K mutation test results, the temperature in Bijie did not increase significantly before the end of 1990s, but showed an obvious rising trend after the end of 1990s, and the annual average, annual average daily minimum and annual average daily maximum temperature changed dramatically in 2006, 2002 and 2007 respectively. |
| Key words: Bijie； temperature； spatial and temporal distribution |
