摘要
本文采用利津站1962～2000年的平均气温(T)、降水量(R)和平均风速(V)资料表征黄河三角洲的气候变化状态.分析显示,近40年来该地区的气候变化具有:气温的长期变化呈变暖趋势,40年来年平均气温约增高了1.4℃,同时,异常高温年均出现在90年代,而异常低温年均出现在60年代;平均风速呈明显变小趋势,40年来年平均风速减小了约1.5m/s;降水量具有明显的1 3～15年周期.
ln this article, the climate change of the Yellow River Delta is described byyearly average temperature, rainfall and average speed of wind in Lijin Station from l962to 2000. The anaIysis indicates that the climate change in this area in recent 40 yearshas three characters as follows: (l) The air temperature appears to be a warming tendencyin long-term change, with yearly average temperature increasing of about l.4℃in recent40 years. At the same time, the years with abnormal high temperature were all in 1990S',and the years with abnormal low temperature were all in l960S'. (2) The yearly windspeed is obviousIy becoming Iower and has decreased about 1.5m/s in recent 40 years. (3)The rainfall has an obvious cycle of about 13 tO l5 years.
出处
《海洋预报》
北大核心
2002年第2期31-35,共5页
Marine Forecasts
关键词
黄河三角洲
气温
风速
降水
长期变化趋势
气候异常
Yellow River Delta
temPerature
wind speed
rainfa1l
long-term tendency
abnormal climate
