摘要
利用玉溪国家基本气象站2009—2023年逐月平均气温、最低气温、最高气温和降水量资料,选择线性倾向估计法分析红塔区气温和降水变化特征。结果表明:红塔区年平均气温、最高气温和最低气温均呈现出升高的趋势,且均未通过显著性水平检验,说明年平均气温、最高/低气温变化趋势并不显著;除了冬季外,红塔区春季、夏季和秋季均以升高趋势为主,尤以夏季升温趋势最为显著,对年平均气温升高贡献最大;红塔区平均年降水量为787.3 mm,呈现出增加的趋势,气候变化倾向率为158.28 mm/10a,未通过显著性水平检验,说明红塔区年降水量增加趋势不显著;红塔区年内降水主要出现在每年的5—10月,占年降水量的81.9%,且年内降水量具有明显的季节性变化特征,以夏季降水最为集中,占年降水量的55.5%;其次是秋季和春季,分别是年降水量的23.0%、13.8%,冬季降水量最少,只有年降水量的7.6%。
Using the monthly average temperature,maximum temperature and precipitation data of Yuxi National Basic Meteorological Station from 2009 to 2023,the linear tendency estimation method was selected to analyze the change characteristics of temperature and precipitation in Hongta District.The results show that the annual average temperature,maximum temperature,and minimum air temperature in Hongta District all show an increasing trend and have not passed the significance level test,indicating that the trend of annual average temperature,maximum/low temperature changes is not significant;Except for winter,the spring,summer,and autumn in Hongta District are mainly characterized by an upward trend,with the summer warming trend being the most significant and contributing the most to the annual average temperature increase;The average annual precipitation in Hongta District is 787.3mm,showing an increasing trend.The trend rate of climate change is 158.28mm/10a,which did not pass the significance level test,indicating that the increasing trend of annual precipitation in Hongta District is not significant;The annual precipitation in Hongta District mainly occurs from May to October each year,accounting for 81.9%of the annual precipitation.The annual precipitation has obvious seasonal variation characteristics,with summer precipitation being the most concentrated,accounting for 55.5%of the annual precipitation;Next are autumn and spring,which account for 23.0%and 13.8%of annual precipitation,respectively.Winter has the lowest precipitation,only 7.6%of annual precipitation.
作者
胡勇华
杨波
杨芳园
HU Yonghua;YANG Bo;YANG Fangyuan(Hongta Meteorological Bureau,Yuxi 653100,Yunnan,China;Yuxi Meteorological Bureau,Yuxi 653100,Yunnan,China;Kunming Meteorological Bureau,Kunming 650500,Yunnan,China)
出处
《云南地理环境研究》
2024年第3期71-75,共5页
Yunnan Geographic Environment Research
关键词
气温
降水量
变化特征
红塔区
temperature
precipitation
change characteristics
Hongta District
