Analysis on Responses of Land Surface Temperature on the Northern Tibetan Plateau to Climate Change
The land surface temperature (Ts) plays an important role on the interaction between atmosphere and ground.The ground observational data from Nagqu Station of Plateau Climate and Environment (NaPlaCE) in the Northern Tibetan Plateau from 2001 to 2012 were used to analyze annual and inter-annual changes and the response to climate changes by statistical analysis method.The result shows that the Ts on the Northern Tibetan Plateau presents a rising tendency in recent years, especially in winter.The difference of Ts and air temperature (Ta) has the maximum in spring, and its value is influenced by the underlying surface.The annual and diurnal variation of the Ts and Ta are obvious, and the Ta variation lags behind Ts.The relationship models based on the Ta, wind speed, soil moisture and Ts demonstrate that the error between the estimated and measured value of Ts fluctuates from 0 ℃ to 2.0 ℃, indicating that Ts and Ta, wind speed, soil moisture are well related to each other.Particularly, the response of Ts to Ta is obvious in all year, the variation of wind speed have a great influence on the changes of Ts in spring and winter, and the relationship between Ts and soil moisture is notable in summer.
Land surface temperatureClimate changesGrassy marshlandThe Northern Tibetan Plateau
NETL
NSTL
万方数据
维普
