摘要
Abstract
The characteristics of climate change in Korla were analyzed by using the observational data from Korla meteorological station,such as the annual average temperature,the annual average atmospheric pressure,the annual precipitation,the annual average surface wind speed,and the annual dust and sandstorm days and the annual sunshine hours from 1961 to 2010. The results showed as follows.(1)Every meteorological element showed the warm trend and the rate of the annual average temperature was generally 0.29 ℃/10 a,which is higher than the national average level and consistent with the background of global warming.(2)The annual precipitation trend was not obvious, but the inter-annual variability was large.(3)The average surface wind speed decreased with the rate of 0.25 m/s/10 a,mainly due to the increase of agriculture and forestry green.(4)The annual dust and sandstorm days tended to decrease with the rate of 14.3 d/10 a and 0.7 d/10 a respectively,which was related to the increase in precipitation, ecological improvement and the warm and humid trend of climate.(5)There were some mutation in different degrees in temperature and annual dust day number in different years tested by Mann-kendall and showed that the climate in Korla was becoming warm. That was different from Luntai weather station in recent 50 years and the rate of the annual average temperature was slower than Luntai, and there were much different rate of increase or decrease of other factors. It maybe related to the rate of urbanization and greening rate.关键词
库尔勒/气候变化/突变/变化趋势Key words
Korla/climate change/abrupt change/change trend分类
天文与地球科学
