| 轨道尺度亚洲气候演化机理的数值模拟:历史与展望 |
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| 引用本文： | 石正国,雷婧,周朋,任鑫.轨道尺度亚洲气候演化机理的数值模拟:历史与展望[J].第四纪研究,2020(1):8-17. |
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| 作者姓名： | 石正国 雷婧 周朋 任鑫 |
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| 作者单位： | 中国科学院地球环境研究所;中国科学院第四纪科学与全球变化卓越创新中心;西安交通大学全球环境变化研究院;北京师范大学地球科学前沿交叉研究中心 |
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| 基金项目： | 国家自然科学基金项目(批准号:41690115、41888101和41977382);中国科学院青年创新促进会共同资助。 |
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| 摘 要： | 轨道尺度亚洲气候演化是古气候热点问题之一,其变化过程和机理对理解当前全球变暖下亚洲气候变化具有重要参考意义。最近几十年,基于黄土、石笋、湖泊等载体的轨道尺度亚洲气候重建研究获得显著进展,气候演化历史的基本框架已被构建,不同区域和指标记录之间的差异暗示了气候演化机理的复杂性。数值模拟作为研究气候动力学的重要工具之一,在轨道尺度亚洲气候变化中也得到广泛应用和快速发展。基于此,本文尝试对最近十数年轨道尺度亚洲气候演化机理的数值模拟研究做一简单总结和梳理。目前的数值模拟尚未对地质记录给出的各种变化特征、区域差异等现象,尤其是东亚夏季风的黄土和石笋差异、季风和干旱气候的耦合关系等,给出合理解释。因此,在未来工作中亟须涵盖多轨道旋回的高分辨率瞬变试验,结合良好定年的重建记录,以期对轨道尺度亚洲气候变化机理获得更深入完整的认识。
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| 关 键 词： | 亚洲气候 轨道尺度 动力机制 数值模拟 |
NUM ERICAL SIMULATION RESEARCHES ON ORBITAL-SCALE ASIAN CLIMATE DYNAM ICS:HISTORY AND PERSPECTIVE |
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| Shi Zhengguo,Lei Jing,Zhou Peng,Ren Xin.NUM ERICAL SIMULATION RESEARCHES ON ORBITAL-SCALE ASIAN CLIMATE DYNAM ICS:HISTORY AND PERSPECTIVE[J].Quaternary Sciences,2020(1):8-17. |
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| Authors: | Shi Zhengguo Lei Jing Zhou Peng Ren Xin |
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| Institution: | (State Key Laboratory of Loess and Quaternary Geology,Institute of Earth Environment,Chinese Academy of Sciences,Xi'an 710061,Shaanxi;Center for Excellence in Quaternary Science and Global Change,Chinese Academy of Sciences,Xi'an 710061,Shaanxi;Institute of Global Environmental Change,Xi'an Jiaotong University,Xi'an 710049,Shaanxi;Interdisciplinary Research Center of Earth Science Frontier,Beijing Normal University,Beijing 100875) |
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| Abstract: | Orbital-scale Asian climate evolution is one of the hot topics of paleoclimate researches,and its changing processes and mechanisms have significant value for understanding the Asian climate change under current global warming.In recent decades,researches on orbital-scale Asian climate reconstruction,based on loess,stalagmites,lake sediments and other proxies,have achieved prominent progress and the basic framework of Asian climate evolution has been constructed.Differences between regions and proxy records suggest the complicated mechanisms of Asian climate change.As one of the important tools to explore climate dynamics,numerical simulations have been widely used and rapidly developed in the orbital-scale Asian climate studies.Based on this,this paper attempts to summarize the advances of the numerical studies on mechanisms of orbital-scale Asian climate during the past several years.The current numerical simulations have not yet given reasonable explanations to a variety of variation characteristics and regional differences in geological records,especially the difference between loess and stalagmites about the East Asian summer monsoon,and the relationship between monsoon and arid climate.Therefore,high-resolution transient experiments covering multi-orbital cycles,in combination with good dating proxies,are required in the future work to gain comprehensive understanding of the orbital-scale climate dynamics over Asia. |
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| Keywords: | Asian climate orbital timescale dynamical mechanism numerical simulation |
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