南京地区50年冬夏气温特征分析和演变趋势

通过对南京 50年夏季和冬季气温特征的分析 ,得出南京盛夏酷暑高温年 ,在 80年代到 90年代正在减少 ;而冬季 ,暖冬年则频频出现。表明世界性气候变暖 ,反映在南京 ,则是冬季的冷冬年出现机率的显著下降和气温的明显升高。但其变暖的程度尚未打破 50年代前期曾出现过暖冬年的月平均气温距平极值。

NANJING TEMPERATURE CHARACTERISTIC ANALYSIS AND ITS EVOLVING TREND IN WINTER AND SUMMER DURING 50 YEARS

Through the temperature characterstic analysis for 50 years In winter and summer in Nanjing,It was found that the high temperature year in Nanjing midsummer decreased from 80s to 90s,but the warm winter year occurred frequently.It was showed that the global warming reflecting in Nanjing was the cold winter year decreasing and its temperature raising clearly.But the extent of becoming warm has not broken the temperature departure value of warm winter appearing in early 50s.