摘要
应用1951—2003年逐日气象观测资料,分析影响北京城市人居环境主要气候因子的变化特征。结果表明:近50 a北京增暖趋势明显,气候变暖与极端热(冷)不舒适日数之间具有较好的相关性,其所导致的总体趋势是使热(冷)不舒适日数上升(下降),同时增加了出现极端热(冷)不舒适日的随机性。分析还表明,北京年加热度日指数存在明显下降趋势,年制冷度日指数变化正好相反,这意味着未来北京冬季供暖耗费能源将会减少,而夏季降温耗费能源将会增加。
Based on the daily meteorological data from 1951 to 2003,the variations of major climate factors that affects Beijing human settlements are analysed.Investigations show that in the last 50 years,the warming trend in Beijing is obvious.Climate warming and the number of extremely hot（cold） days are close correlated,and the overal trend of climate warming resulted in rise in the number of extremely hot days,decline in the number of extremely cold days and rise in the randomicity of extremely hot/cold days,respectively.The heating（cooling） degree days in Beijing dropped（rose） obviously,suggesting that the energy consumption for air conditioners will increase in summer and decrease in winter in Beijing in the future.
出处
《南京气象学院学报》
CSCD
北大核心
2007年第4期519-523,共5页
Journal of Nanjing Institute of Meteorology
基金
空军司令部气象局"精细预报系统"
