北京大学学报（自然科学版）2017，Vol.53Issue(1)：8-18,11.DOI:10.13209/j.0479-8023.2016.098
近51年云南滇中地区地面气象要素变化特征的统计分析
Analysis of Meteorological Variables in Dianzhong Region in Recent 51 Years
摘要
Abstract
To understand the climate change in Dianzhong region, Yunnan Province, the near-surface observations from 1963 to 2013 in four cities (i.e. Kunming, Chuxiong, Yuxi, and Qujing) were analyzed. Significant warming trend was foundin the past 51 years in all the four cites. Comparing the warming trend in different seasons, it was found that the warming rate was fastest in winter. The warming phenomenon was most significant in Kunming, which might be relevant to the urbanization there in the past decades. The annual precipitation presented a slightly decreasing trend. The precipitation increased in the dry seasons (spring and winter), while decreased in the wet seasons (summer and autumn). In the four cities, the decrease of precipitation was most significant in Kunming, while it was slight in Chuxiong. In addition, the decrease of relative humidity was found, and the different between the seasons is not huge. The correlations between different meteorological variables can also be found through the wavelet analysis. It was found that the 36-year cycle of temperature was relevant to that of relative humidity, and the 16‒32 years cycle of relative humidity was also related to that of precipitation in Dianzhong region.关键词
滇中地区/小波分析/统计分析/气候变化Key words
Dianzhong region/morlet wavelet/statistical analysis/climate change分类
天文与地球科学引用本文复制引用
郑亦佳,缪育聪,刘树华,何萍,王姝..近51年云南滇中地区地面气象要素变化特征的统计分析[J].北京大学学报（自然科学版）,2017,53(1):8-18,11.基金项目
国家自然科学基金(41465001)资助 （41465001）
