Abstract:Some characteristics of temperature changes are gained by analyzing surface temperature data from 961 stations in the high
latitude region of Asia from 1973 to 2005．In recent 33 years，the average temperature of this area had an obvious increase trend except
a few stations．It is found that there is a clear regional characteristics for annual mean temperature in Asian high latitude region after
analyzing these stations one by one，the temperature increased fast in the region of 105°E－110°E，55°N－65°N，but decreased
obviously in the southwest part of the Siberian．

The change of p recip itation at 84 meteorological stations in Beijing, Tianjin and Hebei in recent 47 yearswas analyzed by using linear regression, abrup t change analysis and wavelet analysis in this article. The results showed that annual p recip itation decreased at a climatic tendency of - 15 mm /10 a, and the 11 - year runningmean curve indicated the trend would continue in the future. Precip itation in summerwas decreasing inmost of the areas, while increasing in the other seasons. The abrup t change occurred in summer p recip itation during the early 1990 s. Generally, both annual and seasonal p recip itation p resented four periodic change of three,
nine, fourteen and twenty - four years.