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7篇 您的检索式:作者名="S.C.Porter"
    题名 作者 年代 出处 被引量
1最近130ka洛川黄土堆积序列与格陵兰冰芯记录显示文摘现今中国大陆冬季气候与冷空气活动有关,的巴伦支海、西北方的喀拉海和西方的大西洋.形成西伯利亚-蒙古高压的冷空气来自北方现代尘暴和降尘事件主要发生于冬半年,并与西伯利亚-蒙古高压冷空气活动决定的偏北风有关.安芷生 孙东怀 张小曳 周卫建 S.C.Porter J.Chappell N.J.Shackleton 张代洲 1994科学通报1994,39,24:58
2新仙女木期沙漠/黄土过渡带高分辨率泥炭记录——东亚季风气候颤动的实例显示文摘通过对气候敏感的沙漠/黄土过渡带中湖沼沉积进行高分辨率的^(14)C年代学和气候代用指标的研究,揭示了东亚季风气候存在着干冷(11.2~10.6kaBP)、湿凉(10.6~10.2kaBP)和干冷(10.2~10.0kaBP)的颤动特征。沙漠/黄土过渡带地处欧洲下风区,通过西风带与极地北大西洋气候相联系。晚冰期上述地区大气和海面温度变化引起西伯利亚~蒙古高压强度的变化,进一步影响东西区域性海-陆气压梯度的增强与减弱。因此,这一时期东亚季风气候这种百年尺度的快速颤动可视为高纬极地大陆气团与太平洋暖湿气团相互作用的写照。周卫建 李小强 董光荣 S.C.Porter M.Stuiver D.Donahue A.J.T.Jull 1996中国科学(D辑)1996,26,2:58
3末次冰消期东亚和挪威海气候事件的对比显示文摘通过对黄土-古土壤和泥炭剖面的高分辨率~14C年代学以及有机质的δ^(13)C值和有机碳百分含量的研究,揭示了末次冰消期百年尺度温暖-寒冷的东亚季风气候颤动事件及其反映的有意义的降水变率.它们由波令(Bolling13~12.5ka BP),老仙女木(Older Dryas 12.5~11.75ka BP),阿勒鲁德(Allerod 11.75~11.2 ka BP)和新仙女木(Younger Dryas 11.2~10 ka BP)事件构成.其地层结构表现出多种沉积相的变化,反映了气候的不稳定性.这些高频、快速的气候事件可与挪威海海面温度记录的气候事件—一对比.反映了东亚季风气候通过西风带及与其相关的气压系统与极地.高纬地区古气候的遥相关.周卫建 安芷生 S.C.Porter D.Donahue A.J.T.Jull 1997中国科学(D辑)1997,27,3:15
4末次间冰期黄土高原夏季风气候的初步研究显示文摘中国黄土-古土壤地层序列的古气候研究表明,黄土高原的黄土是冬季风的产物,与之相间的古土壤则发育于夏季风环境效应优势期.约130~70kaB.P.的末次间冰期,黄土高原以夏季风强盛为其基本气候特点,发育了一套由三层复合的、成壤作用较强的古土壤S1.为了半定量地恢复这一时期黄土高原夏季风气候,我们布置了几乎覆盖整个黄土高原的三条大剖面线(图1(a)),沿线尽可能等间距选择典型地层剖面,对末次间冰期以来黄土-古土壤序列进行了实测,对各剖面的夏季风替代性指标-磁化率作了较为系统的测量.孙东怀 周杰 蒋复初 S.C.Porter 1995科学通报1995,40,20:15
5Accumulation sequence of Chinese loess and climatic records of Greenland ice core during the last 130 ka显示文摘The present winter climate of continental China is associated with cold air activity.The cold air forming Siberian high pressure comes from the Northern Barents Sea.Northwestern Kara Sea and Northern Atlantic Ocean (fig.1). in other words, mainly fromthe cold northern sea surface. west and east to Novaya Zemlya and the sea surface south安芷生 孙东怀 张小曳 周卫建 S.C.Porter J.Shaw 张代州 1995Chinese Science Bulletin1995,40,15:7
6Correlation of climatic events between East Asia and Norwegian Sea during last deglaciation显示文摘Using a high resolution 14C chronology, Sl C values and organic carbon content, from loess/paleosol and peat profiles in China, we can demonstrate century scale warm-cold East Asian monsoon paleoclimatic fluctuation events and significant precipitation variability within the last deglaciation. The major climatic events recognized are the Boiling (1 300-12 500 a B. P.), Older Dryas (12 500-11 750 a B. P. ), Allerod (11 750-11 200 a B. P.) and Younger Dryas (11 200-10 000 a B.P. ). The stratigraphic structure of the last deglaciation sediments is characterized by frequent changes in sedimentation phases reflecting climatic instability. These high frequency, rapid climatic events can correlate with fluctuations recorded by sea surface temperatures in the Norwegian Sea. This indicates a pale-oclimate teleconnection between polar, high latitude areas and East Asian monsoon areas through westerlies and the related atmospheric pressure system.周卫建 安芷生 S.C.Porter D.Donahue A.J.T.Jull 1997Science China Earth Sciences1997,40,5:3
7Preliminary study on the summer monsoon climate of Chinese Loess Plateau during the last interglacial period显示文摘Research on long-term climatic variation on the Chinese Loess Plateau has demonstrated that loess is mainly the dust deposits transported by the northern wind of the winter monsoon, and that the paleosol accreted by rather slow dust accumulation was closely related to a strengthened summer monsoon. The climate over the Chinese孙东怀 周杰 蒋复初 S.C.Porter 1996Chinese Science Bulletin1996,41,4:0
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