Analysis and Research on Winter Temperature Change Trend of Main Stations in Hunan Province from 1951 to 2020
In order to study the trend of winter temperature increase or decrease in Hunan Province in the past 70 years,the data of 20 main temperature monitoring stations such as Sangzhi,Shimen and Nanxian were selected.Lin-ear Regression Modeling was used to analyze the three indicators of average temperature,average maximum tem-perature,and average minimum temperature at these stations.The results show that in the past 70 years,the average winter temperature,average minimum temperature and average maximum temperature in Hunan Province have shown an overall upward trend,but there are differences in the temperature rise or fall of different stations,and the average temperature rise is higher than the average minimum temperature and average maximum temperature.The temperature rise in Changsha area is the highest compared to other station areas,while the average maximum tem-perature in Chenzhou and Yongzhou in December shows a slight downward trend.Sangzhi is the station with the smallest temperature rise among all stations.
Temperature changesHunan ProvinceWinterAverage temperatureAverage maximum tempera-tureAverage minimum temperature