新龙站近48年气温、降水量变化特征分析

Analysis on the Features of Air Temperature and Precipitation Changes Features in the Xinlong Meteorological Station from 1960 to 2007

新龙县位于青藏高原向四川盆地过渡面上，平均海拔3500m，研究新龙站的气候变化，对揭示青藏高原的气候有一定的参考价值。本文对新龙站1960～2007年气温和降水量资料进行了统计分析。结果显示：新龙站近48年平均气温略有上升的趋势，近10年处在一个较高的水平；冬季气温有上升趋势，夏季气温变化基本平稳；年平均气温有显著的15年左右的周期变化。降水量变化略有增加的趋势，无显著的年际和年代际变化特征，近年来强降水出现的频率增大。

In order to changing climate, we take promote the new socialist countryside work carrying out smoothly and understand the characteristic of a statistical analysis of air temperature and precipitation which based on the data of Xinlong meteoro- logical station from 1960 to 2007. The results are ： The mean annual air temperature rising slightly trend and the lately ten years to maintain a high level ; air temperature rising trend in winter, and in summer air temperature changes in the basic smooth; the mean annual air temperature had an obvious change in 15 years cycle. A slight increase in annual precipitation without obvious decadal and interdeeadal change and the frequency of heavy precipitation increases,in recent years.