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冰芯、陆地和海洋等古气候记录表明末次冰期存在着一系列千年尺度的气候突变事件,尤以格陵兰冰芯记录的快速升温事件(Greenland Interstadial事件,简称GIS事件)和北大西洋深海沉积记录的冰漂碎屑事件(Herinch事件,简称H事件)最为显著。虽然各记录中气候事件表现形式不一致,但被证明具有全球性。亚洲季风千年尺度气候变化与北高纬气候事件紧密相关,说明北大西洋温盐环流(THC)对季风气候变化起着重要的作用。深海氧同位素3阶段(MIS 3)大陆冰盖规模、高纬太阳辐射量以及大气CO_2浓度处于中等水平,在这种气候状态下,北大西洋洋流不稳,诱发千年尺度的自由振荡,DO事件最为典型。最近,高分辨率
Paleoclimate records such as ice core, land and ocean indicate that there are a series of climatic abrupt changes in the last ice age, especially the Greenland Interstadial event (GIS event) recorded by the Greenland ice core and the records of deep-sea sediments recorded by the North Atlantic Ocean Ice drift debris event (Herinch event, referred to as H event) the most significant. The inconsistencies in the manifestations of climate events in the records have proved to be global. The climate change at the Asian monsoon at the millennium scale is closely related to the climate events at the northern latitudes, indicating that THC plays an important role in monsoon climate change. Under the climate condition, the North Atlantic ocean current instability induces the free-oscillations on the millennium scale and the most DO events are the continental ice sheet scale, the high latitude solar radiation amount and the atmospheric CO 2 concentration in the deep-sea oxygen isotope stage 3 (MIS 3) typical. Recently, high resolution