中国气候变化敏感区气温变化对比

Comparative research on the temperature variation of regional response to global climate change in china

近50 a来全球气候变化已经是当今自然科学重大课题之一,中国的区域响应也日渐引人关注.依据黑龙江、新疆、西藏3省区93个国家基准或基本气象站1961—2008年的日气温数据,就年均气温及四季气温变化过程和特征进行了对比分析.3省区增温幅度分别为1.71,1.20,1.15℃,且线性趋势明显;增温过程方面,黑龙江和西藏均为持续增温,而新疆增温、降温过程动荡大;季节对比可知,虽然黑龙江以冬春、新疆和西藏以秋冬增温最强,但冬季的贡献率都最为显著,分别为38.35%,38.73%和36.75%.

Studying on regional response to global climatic changes in China is becoming significant while the research on global cimatic change has been one of major issues in curent natural science over the past forty years.According to daily temperature of ninty-three national reference or basic synoptic climatological stations from 1961 to 2008,the comparative studies were finished in the variation process and its characteristics of both annual temperature and different seasonal temperature among Heilongjiang,Xinjiang and Tibet Provinces.The results showed that the mean annual air temperatures of Heilongjiang,Xinjiang and Xizang had increased 1.71,1.20 and 1.15℃ respectively from the year 1961 to 2008.Both Heilongjiang and Tibet are essentially aligned with continued warming.But the turbulenle of temperature variation is big in Xinjiang.In seasonal contrast,the contribution rates of winter are 38.35%,38.73% and 36.75%,although it is in both winter and spring that the temperature increased fast in Heilongjiang while it is in both autumn and winter that wariming is the greatest in Xinjiang and Tibet.