According to the annual statistic values of eight essential elements for the latest 50-year climatic data,including average temperature,average maximum temperature,averageminimum temperature,relative humidity,amount o...According to the annual statistic values of eight essential elements for the latest 50-year climatic data,including average temperature,average maximum temperature,averageminimum temperature,relative humidity,amount of precipitation,precipitation day,average wind speed and sunlight duration,a one-dimensional linear regression equation was built,and the regression ratio b (tendency rate) and related ratio r (trend coefficient) were calculated to analyze the regular pattern and the relationship between each elements.The results showed that the warming trend was obvious in the area of Sanjiang-Changbai,the development was from humidification to half-humidification.The average wind speed and hours of sunlight showed a decreasing trend,and the difference was great in different locations in Sanjiang-Changbai area.展开更多
文摘According to the annual statistic values of eight essential elements for the latest 50-year climatic data,including average temperature,average maximum temperature,averageminimum temperature,relative humidity,amount of precipitation,precipitation day,average wind speed and sunlight duration,a one-dimensional linear regression equation was built,and the regression ratio b (tendency rate) and related ratio r (trend coefficient) were calculated to analyze the regular pattern and the relationship between each elements.The results showed that the warming trend was obvious in the area of Sanjiang-Changbai,the development was from humidification to half-humidification.The average wind speed and hours of sunlight showed a decreasing trend,and the difference was great in different locations in Sanjiang-Changbai area.
