Analysis of Climate Change in Gannan Prefecture,Gansu Province in the Past 30 Years
[Purposes]The variation characteristics of temperature and precipitation in Gannan Prefecture in recent 30 years were studied.[Methods]Based on the meteorological data such as temperature and precipitation in Gannan Prefecture from 1992 to 2022,the changes were explored by mathematical statis-tics and linear analysis.[Findings]The average highest temperature in the hottest month of Gannan Pre-fecture is 17.6℃,and the average lowest temperature is-10.9℃.The temperature in spring and autumn remains basically unchanged.The slope of the annual average temperature change trend over the past 30 years is positive,indicating a gradual upward trend in temperature;the precipitation in Gannan Prefec-ture is mainly concentrated in June,July,and August,namely summer.Summer precipitation accounts for 46.4%to 58.4%of the annual precipitation,while precipitation in other years and seasons tends to stabilize without significant changes.[Conclusions]The climate change in Gannan Prefecture is regu-lated by global warming,and the precipitation in spring has a decreasing trend,and the changes in other seasons are not obvious.
万方数据
维普
