近50年来中国极端降水趋势与物理成因研究综述

被引:255
作者
高涛 [1 ,2 ]
谢立安 [1 ,3 ]
机构
[1] 海洋环境与生态教育部重点实验室,中国海洋大学
[2] 菏泽学院资源与环境系
[3] Department of Marine Earth and Atmospheric Sciences North Carolina State University
关键词
极端降水事件; 全球气候变化; 物理成因;
D O I
暂无
中图分类号
P426.6 [降水];
学科分类号
070601 [气象学];
摘要
对中国近50年来极端降水事件的研究表明,在全球变暖背景下极端降水事件的频率和强度均有升高的趋势,但存在明显的区域差异。观测分析表明长江中下游,东南地区和西北的部分区域极端降水有增加趋势,而华北、东北和西南的部分地区有减少趋势。现阶段不同模式模拟的结果还存在差异,但总的预测结论表明中国极端降水有极化的趋势。首先从统计学角度通过分析均值和极值的关系,探讨了极端降水事件概念的界定,然后分析了不同区域极端降水的变化趋势。在综述中国极端降水研究的基础上,以极端降水变化趋势较为复杂的长江流域作为典型气候区,从海—气相互作用角度对影响极端降水的物理机制和过程进行了总结。分析表明能够反映极端降水本质特性的定义和影响极端降水的物理过程还需要进一步研究,并且随着研究深入,新的影响极端降水的因子也会被逐渐发现。
引用
收藏
页码:577 / 589
页数:13
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