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Precipitation Pattern of the Mid-Holocene Simulated by a High-Resolution Regional Climate Model

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doi: 10.1007/s00376-013-3178-9

  • Early proxy-based studies suggested that there potentially occurred a southern drought/northern flood'' (SDNF) over East China in the mid-Holocene (from roughly 7000 to 5000 years before present). In this study, we used both global and regional atmospheric circulation models to demonstrate that the SDNFnamely, the precipitation increases over North China and decreases over the the lower reaches of the Yangtze River Valleycould have taken place in the mid-Holocene. We found that the SDNF in the mid-Holocene was likely caused by the lower SST in the Pacific. The lowered SST and the higher air temperature over mainland China increased the land-sea thermal contrast and, as a result, strengthened the East Asian summer monsoon and enhanced the precipitation over North China.
    摘要: Early proxy-based studies suggested that there potentially occurred a ``southern drought/northern flood'' (SDNF) over East China in the mid-Holocene (from roughly 7000 to 5000 years before present). In this study, we used both global and regional atmospheric circulation models to demonstrate that the SDNF--namely, the precipitation increases over North China and decreases over the the lower reaches of the Yangtze River Valley--could have taken place in the mid-Holocene. We found that the SDNF in the mid-Holocene was likely caused by the lower SST in the Pacific. The lowered SST and the higher air temperature over mainland China increased the land-sea thermal contrast and, as a result, strengthened the East Asian summer monsoon and enhanced the precipitation over North China.
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Manuscript received: 05 September 2013
Manuscript revised: 28 October 2013
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Precipitation Pattern of the Mid-Holocene Simulated by a High-Resolution Regional Climate Model

    Corresponding author: YU Entao; 
  • 1. Nansen-Zhu International Research Centre, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029
  • 2. Climate Change Research Center, Chinese Academy of Sciences, Beijing, 100029
  • 3. Nansen Environmental and Remote Sensing Center, Bergen, Norway, 5006
  • 4. State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029
Fund Project:  This research was jointly supported by the Strategic Priority Research Program'' of the Chinese Academy of Sciences (Grant XDB03020602), the National Natural Science Foundation of China (Grant No. 41130103), the Strategic Priority Research Program'' of the Chinese Academy of Sciences (Grant No. XDA05120703), and the Introduction of Advanced International Forestry Science and Technology'' of the State Forestry Administration (2012-4-79).

Abstract: Early proxy-based studies suggested that there potentially occurred a southern drought/northern flood'' (SDNF) over East China in the mid-Holocene (from roughly 7000 to 5000 years before present). In this study, we used both global and regional atmospheric circulation models to demonstrate that the SDNFnamely, the precipitation increases over North China and decreases over the the lower reaches of the Yangtze River Valleycould have taken place in the mid-Holocene. We found that the SDNF in the mid-Holocene was likely caused by the lower SST in the Pacific. The lowered SST and the higher air temperature over mainland China increased the land-sea thermal contrast and, as a result, strengthened the East Asian summer monsoon and enhanced the precipitation over North China.

摘要: Early proxy-based studies suggested that there potentially occurred a ``southern drought/northern flood'' (SDNF) over East China in the mid-Holocene (from roughly 7000 to 5000 years before present). In this study, we used both global and regional atmospheric circulation models to demonstrate that the SDNF--namely, the precipitation increases over North China and decreases over the the lower reaches of the Yangtze River Valley--could have taken place in the mid-Holocene. We found that the SDNF in the mid-Holocene was likely caused by the lower SST in the Pacific. The lowered SST and the higher air temperature over mainland China increased the land-sea thermal contrast and, as a result, strengthened the East Asian summer monsoon and enhanced the precipitation over North China.

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