Climate changes in northern China since the late Pleistocene and its response to global change
Climate changes in northern China since the late Pleistocene and its response to global change
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DOI：
10.1016/s1040-6182(01)00046-5
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发表时间：
2001-09
影响因子：
2.2
通讯作者：
Weijian Zhou;M. Head;Lin Deng
中科院分区：
文献类型：
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作者：
Weijian Zhou;M. Head;Lin Deng
本文选取了中国季风敏感区（西北冬季风和东部夏季风）9个具有代表性的高分辨率14 C年代学资料，对这些地区的气候变化进行了对比研究。地层序列和气候代用数据的综合分析已被用来重建这些季风敏感地区自上次冰消期以来的干湿环境条件波动的历史。这些记录也与格陵兰冰芯和Guliya冰芯数据进行了比较。代表这些气候波动的四个主要事件（E1-E4）被确认。其中，E3表明在新仙女木间隔之后的突然冷却事件。迄今为止，这一事件仅在中国和北方高纬度地区被发现。认为世纪至千年尺度的全球温度变化通过海洋/大气相互作用影响季风环流的强度，从而在季风敏感区产生干湿气候波动。在全球气候变暖的今天，中国季风影响区末次冰消期记录的干湿期序列所呈现的整体图像，可以作为预测这些地区未来中长期气候变化的历史类比。
Nine representative high resolution profiles with reliable14C chronologies have been chosen from the monsoon sensitive areas in China (winter monsoon from the north-west, and summer monsoon from the east) to provide a comparative picture of climate change within these areas. Comprehensive analyses of stratigraphic sequences and climatic proxy data have been used to reconstruct a history of fluctuating dry and wet environmental conditions in these monsoon sensitive areas since the last deglaciation. These records have also been compared with Greenland ice core and Guliya ice core data. Four major events representing these climate fluctuations (E1–E4) are recognised. Among them, E3 indicates an abrupt cooling event after the Younger Dryas interval. This event has so far only been recognised in China and high latitude areas in the northern hemisphere. It is proposed that century to millenial scale global temperature changes affect the intensity of monsoon circulation through ocean/atmosphere interactions, hence producing dry and wet climate fluctuations in monsoon sensitive areas. In an era of global warming, the overall picture presented by the sequences of wet/dry periods recorded in Chinese monsoon affected areas during the last deglaciation can be used as an historical analogue for future predictions of medium to long term climate change within these areas.