Millennial‐scale variability in Red Sea circulation in response to Holocene insolation forcing

Millennial‐scale variability in Red Sea circulation in response to Holocene insolation forcing
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红海环流千年尺度变化对全新世绝缘强迫的响应

DOI:
10.1029/2009pa001826
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发表时间:
2010
期刊:
影响因子:
--
通讯作者:
Kucera
Kucera
中科院分区:
地学2区
文献类型:
--
作者:
Trommer;Siccha;Rohling;van der Meer;Schouten;Hemleben;Kucera

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为了评估全新世期间日照驱动的气候变化叠加海平面上升和千年事件如何影响红海,我们提供了两个沉积物岩心的新古海洋记录,以全面重建该盆地的全新世环流动力学。我们发现,新仙女木期后浮游有孔虫动物群的恢复在北部比在红海中部更早完成,这意味着红海北部地区的水文平衡在冰消期期间发生了显着变化。全新世早期,红海环境紧随印度夏季风的发展,以与现今夏季环流类似的环流模式为主,整个红海中部和北部生产力较低。全新世晚期的气候信号以距今2.4 ka 左右的动物群瞬变事件为主。其时间与北大西洋邦德事件 2 的时间相对应,并且与区域记录的广泛干旱期相对应。这种动物群短暂现象的特点是有孔虫动物群生产力更高,可以用冬季环流模式的加强和高蒸发来解释。反映当时盛行循环系统的浮游有孔虫现代分布格局是在距今1.7ka之后建立的。
In order to assess how insolation‐driven climate change superimposed on sea level rise and millennial events influenced the Red Sea during the Holocene, we present new paleoceanographic records from two sediment cores to develop a comprehensive reconstruction of Holocene circulation dynamics in the basin. We show that the recovery of the planktonic foraminiferal fauna after the Younger Dryas was completed earlier in the northern than in the central Red Sea, implying significant changes in the hydrological balance of the northern Red Sea region during the deglaciation. In the early part of the Holocene, the environment of the Red Sea closely followed the development of the Indian summer monsoon and was dominated by a circulation mode similar to the current summer circulation, with low productivity throughout the central and northern Red Sea. The climatic signal during the late Holocene is dominated by a faunal transient event centered around 2.4 ka BP. Its timing corresponds to that of North Atlantic Bond event 2 and to a widespread regionally recorded dry period. This faunal transient is characterized by a more productive foraminiferal fauna and can be explained by an intensification of the winter circulation mode and high evaporation. The modern distribution pattern of planktonic foraminifera, reflecting the prevailing circulation system, was established after 1.7 ka BP.
全新世期间地中海气候变化。
DOI: --
发表时间: 2001
期刊:
影响因子: --
作者:
J. Casford;R. H. Abu;E. Rohling;S. Cooke;K. Boessenkool;H. Brinkhuis;C. D. Vries;G. Wefer;M. Geraga;G. Papatheodorou;I. Croudace;J. Thomson;V. Lykousis
通讯作者: V. Lykousis
约旦死海变换北瓦迪阿拉巴断层的晚更新世和全新世滑动率
DOI: --
发表时间: 2001
期刊:
影响因子: --
作者:
T. Niemi;Hongwei Zhang;M. Atallah;J. Harrison
通讯作者: J. Harrison
DOI: 10.1177/0959683608098955
发表时间: 2009
期刊: The Holocene
影响因子: --
作者:
Y. Edelman‐Furstenberg;A. Almogi‐Labin;C. Hemleben
通讯作者: C. Hemleben
DOI: --
发表时间: 1998
期刊:
影响因子: --
作者:
A. Almogi‐Labin;C. Hemleben;D. Meischner
通讯作者: D. Meischner
对地中海盐度和 δ18O 的环境控制
DOI: 10.1029/1999pa900042
发表时间: 1999
期刊: Paleoceanography
影响因子: --
作者:
E. Rohling
通讯作者: E. Rohling