黄河三角洲近40年来气候变化趋势及异常特征

作者：刘晋秀1  江崇波2  范学炜2

单位：1. 利津县气象局 山东; 2. 国家海洋局北海分局 青岛

关键词：黄河三角洲 气温 风速 降水 长期变化趋势 气候异常

分类号：P463

出版年·卷·期（页码）：2002·2002·第二期（31-35）

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13～15年周期。

ln this article, the climate change of the Yellow River Delta is described by yearly average temperature, rainfall and average speed of wind in Lijin Station from l962 to 2000. The anaIysis indicates that the climate change in this area in recent 40 years has three characters as follows: (1) The air temperature appears to be a warming tendency in long-term change, with yearly average temperature increasing of about 1.4℃ in recent 40 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 1960S’. (2) The yearly wind speed 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 15 years.

参考文献：

[1] 黄朝迎.第二次世界气候大会主要结论-温室效应气体和气候变化.山东气象,1991. [2] 王延贵.济宁市近40年气温异常分析.山东气象,2001 [3] 盖世民.黄河三角洲近40年的气候变化特征.海洋湖沼通报,1998

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