过去气候演化的阶段性和突变  

ABRUPT CLIMATE CHANGES IN THE PALEOCLIMATE RECORDS

作　　者：张丕远[1] 葛全胜[1] 

机构地区：[1]中国科学院,国家计委地理研究所

出　　处：《地学前缘》1997年第1期122-126,共5页Earth Science Frontiers

基　　金：国家自然科学基金

摘　　要：地球系统的历史信息是评估全球变化的一项重要因素。前些年，过去气候研究中发现了气候的突然变化的现象，突变证据大多出现在冰期，或由冰期向间冰期的过渡时期，并认为这是冰盖的成冰与溶解过程造成海水铅直运动的结果。近些年，过去气候研究还发现在间冰期中也出现突变。我国的历史文献、冰芯和沉积的高分辨率的古气候恢复工作发现近２０００年来中国气候明显存在着突变事件。因此，这给我们带来了新的问题，即间冰期气候的稳定性问题。如果气候突变的证据增多。The historical information is an important factor for the assessment of global change. The paleoclimate records have shown that there were a lot of abrupt climatic changes at the global and regional level, and in the time scale of interannual, annual and decades. During Ice period, transferring period from one Ice to another Ice. Recently, some studies in China shows that many abrupt climatic changes also existed in the Holocene interglacial, particularly in the past 2000 years. The more and more evidences of abrupt climatic changes discovered in the past are considered to be an important factor to predict climatic change of the future.

关 键 词：古气候 气候变化 末次冰期 冰期 阶段性变化 

分 类 号：P532[天文地球—古生物学与地层学] P467[天文地球—地质学]