摘要
利用2016—2018年库尔勒气象站迁站前后基本气象要素的观测资料进行对比分析,结果显示:(1)平均气温和平均最低气温的年、月值均是新站低于旧站,年值分别低2.1℃和4.1℃,年平均最高气温持平;春季平均气温差值变化相对较小,夏、秋、冬季平均气温差值变化相对偏大。(2)各月平均相对湿度新站大于旧站;各季平均相对湿度差值夏季最大;年平均相对湿度新站比旧站高11%。(3)各月平均气压新站高于旧站,年平均气压差值为3.2 hPa;各季差值冬季最大。(4)年平均风速新站比旧站偏大0.2 m/s;春夏季风速大于其他季节;最大风速新站比旧站偏大1.3~6.2 m/s;年主导风向由ENE转为E。(5)t检验显示:年平均气温、年平均湿度和年平均气压,迁站前后资料有显著差异,年平均风速变化不突出。
Making a comparative analysis of observational data of the basic meteorological elements that before and after the relocation of the Korla Meteorological Station during 2016-2018,The results show that:(1)in the new station,the annual and monthly values of the average temperature,annual average minimum temperature and monthly average minimum temperature are all lower than that of the old station,which the annual average values are 2.1℃and 4.1℃less likely,respectively;the annual average maximum of the air temperatures is equal;the change of the average temperature difference in spring is relatively small,the change of average temperature difference in summer,autumn and winter is relatively large.(2)The monthly average relative humidity of the new station is larger than that of the old station.In all seasons,the average relative humidity difference is the largest in summer,and the annual average relative humidity of the new station is 11%higher than that of the old station.(3)The monthly average atmospheric pressure in the new station is higher than that of the old station,and the annual itaverage atmospheric pressure difference is 3.2 hPa;and the average atmospheric pressure difference in winter is the largest of the all seasons.(4)the annual average wind speed in the new station is 0.2 m/s faster than that in the old station;wind speed in the spring and summer is faster than that in other seasons;the maximum wind speed in the new station is 1.3 to 6.2 m/s larger than that in the old station;which the annual dominant wind direction is changed from ENE to E.(5)The t-test revealed that there are significant differences in annual average air temperature,annual average humidity and annual average atmospheric pressure before and after relocation,whereas there is no significant difference in annual average wind speed.
作者
夏雪梅
魏哲花
隆永兰
XIA Xuemei;WEI Zhehua;LONG Yonglan(Korla Meteorological Bureau,Korla 841000,China;Hami Meteorological Bureau,Hami 839000,China)
出处
《沙漠与绿洲气象》
2020年第5期130-135,共6页
Desert and Oasis Meteorology
基金
国家科技支撑计划课题结题再研专项(2018-46)。
关键词
库尔勒气象站
迁站
气象要素
差异
成因分析
Korla meteorological station
station migration
meteorological elements
difference
cause analysis
