全球变暖对水循环的影响:回顾与展望

被引:7
作者
杨石岭 [1 ,2 ]
陈祚伶 [1 ]
黄晓芳 [1 ]
唐自华 [1 ]
张师豪 [1 ]
姜文英 [1 ]
丁仲礼 [1 ]
机构
[1] 中国科学院地质与地球物理研究所,岩石圈演化与环境演变全国重点实验室
[2] 中国科学院大学地球与行星科学学院
基金
国家重点研发计划;
关键词
古增温; 地质记录; 东亚夏季风; 大气CO2浓度;
D O I
暂无
中图分类号
P467 [气候变化、历史气候]; P339 [水文循环与水文气象];
学科分类号
070403 [天体物理学]; 070601 [气象学];
摘要
20世纪70年代以来,全球气候变化引发了学术界的广泛关注。本文简要回顾了最近几十年来不同时间尺度气候变化预测的观点,总结了全球变暖可能引发的环境效应。在此基础上,梳理了新生代地质温暖期的东亚环境状况。从哲学和地质历史的角度看气候维持不变是不可能的,未来要么在北半球太阳辐射的驱动下变冷,要么在温室气体的作用下变暖。地质记录和气候模拟结果大多显示,地质温暖期东亚夏季风雨带北进、降水增加;古增温导致水汽含量增加、热带辐合带北移和西太平洋副热带高压扩张是东亚季风降水增加的根本原因;从冰期-间冰期尺度看,全球变暖不仅对东亚地区是利大于弊,对全球大部分地区也是利大于弊;就提升未来气候变化预测和预估准确性而言,加强气候系统内部自然变率研究是当务之急。
引用
收藏
页码:1079 / 1092
页数:14
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