快速气候变化与高分辨率的深海沉积记录  

RAPID CLIMATE CHANGE AND HIGH RESOLUTION DEEP-SEA SEDIMENTARY RECORDS

作　　者：翦知湣[1] 黄维[1] 

机构地区：[1]同济大学海洋地质教育部重点实验室,上海200092

出　　处：《地球科学进展》2003年第5期673-680,共8页Advances in Earth Science

基　　金：国家杰出青年科学基金项目"晚第四纪印度/太平洋海洋通道的水体交换及其全球气候意义"(编号:40125015);教育部霍英东青年教师基金项目"晚第四纪赤道太平洋上层海水温度纬向梯度的演变"(编号:81015)资助.

摘　　要：通过高分辨率海洋古气候序列研究快速气候变化的机制是大洋钻探ODP及相关的国际海洋古全球变化研究IMAGES的重要贡献。研究发现,千年、百年尺度的古气候事件具有全球性,不仅见于冰芯和北大西洋高纬区,也发生在热带太平洋等其它海区和地球的其它部分;不仅见于末次冰期,也发生在全新世和早、中更新世。尽管这些快速气候变化的原因和机理尚无定论,但至少说明存在有别于冰期/间冰期冰盖体积变化的因素(如热带过程、太阳活动等)在起作用,从根本上改变了学术界对地球气候环境系统历史的认识。Studies of the rapid climate changes through highresolution deepsea sequences represent an important legacy of the Ocean Drilling Program (ODP) and related International Marine Global Change Study (IMAGES). It has been revealed that decadal to millennialscale climate variability is a global phenomenon, which was not limited to the ice cores and high latitudes of the North Atlantic, but also extended to other oceans such as the tropical Pacific and other parts of the globe. These rapid climate changes occurred in the last glacial stage, but also in the Holocene and the middle and early Pleistocene. Despite its reason and mechanism are still vigorously debated, it has been clearly shown that some elements (e.g., tropical forcing, solar activity) different from the glacialinterglacial ice cover volume change were responsible for the rapid climate changes. This fundamentally altered the way Earth scientists thought about the operation of the Earth's climate system and the relatively sensitivity of this system to major climatic shifts.

关 键 词：快速气候变化 高分辨率记录 深海沉积 大洋钻探 

分 类 号：P736.22[天文地球—海洋地质]