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青藏高原及毗邻山地利用冰川地貌重建古气候的研究综述
引用本文:崔航,曹广超,陈克龙,郭华,蒋刚.青藏高原及毗邻山地利用冰川地貌重建古气候的研究综述[J].冰川冻土,2021,43(1):254-262.
作者姓名:崔航  曹广超  陈克龙  郭华  蒋刚
作者单位:1.青海师范大学 青藏高原地表过程与生态保育教育部重点实验室,青海 西宁 810008;2.青海师范大学 地理科学学院 青海省自然地理与环境过程重点实验室,青海 西宁 810008;3.青海师范大学 外国语学院,青海 西宁 810008
基金项目:国家自然科学基金项目(41801032);冰冻圈科学国家重点实验室开放基金项目(SKLCS-OP-2020-1);青海省自然科学基金项目(2018-ZJ-972Q)
摘    要:利用冰川地貌定量重建冰期时的古气候特征是探讨冰川驱动机制的关键。利用冰川地貌反演古气候的模型主要有两类:基于物质平衡线高度变化和基于估算古冰川表面物质平衡的气候重建模型,因其原理、所需数据量的不同,适用性存在着差异,应用时需根据冰川区的具体特征选取多种模型重建古气候,提高模拟的精度。青藏高原及毗邻山地已有的基于古冰川的气候重建数据显示:MIS 6以来冰川变化为气温变化驱动,冰川规模还受降水量增多的影响;MIS 3中期冰川的规模较之末次冰盛期(Last Glacial Maximum,LGM)更大,主要是该较冷的亚阶段降水比LGM时期更为丰沛所致。

关 键 词:ELA  物质平衡  气候重建  模型  青藏高原  
收稿时间:2018-05-18
修稿时间:2018-08-01

A review on the reconstruction of palaeoclimate by glacial landform in the Tibetan Plateau and adjacent mountains
CUI Hang,CAO Guangchao,CHEN Kelong,GUO Hua,JIANG Gang.A review on the reconstruction of palaeoclimate by glacial landform in the Tibetan Plateau and adjacent mountains[J].Journal of Glaciology and Geocryology,2021,43(1):254-262.
Authors:CUI Hang  CAO Guangchao  CHEN Kelong  GUO Hua  JIANG Gang
Institution:1.MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation,Qinghai Normal University,Xining 810008,China;2.Qinghai Province Key Laboratory of Physical Geography and Environmental Process,College of Geographical Sciences,Qinghai Normal University,Xining 810008,China;3.College of Foreign Languages,Qinghai Normal University,Xining 810008,China
Abstract:It is critical for understanding the relationships between glacier and climate change based on the palaeoclimate derived from glacial landform records. There are two approaches to reconstruct climate based on palaeoglacier. One is climatic reconstruction upon glacier equilibrium-line altitude (ELA) variation, and the other approach is climatic reconstruction based on glacier mass balance variation. With the difference between principle and required datasets of models, the applicability and accuracy of different models are variable. To improve the modeling accuracy, it is essential to apply a variety of models to reconstruct palaeoclimate based on the physical characteristics in the study area. Based on the previous palaeoclimate derived from glacial landform records in the Tibetan Plateau and adjacent mountains, the glaciations were driven by the drop of air temperature and the expansion of the extent of palaeoglaciers were also affected by the change in precipitation. Due to more abundant precipitation during mid-MIS 3 than Last Glacial Maximum (LGM), the extent of palaeoglacier during mid-MIS 3 was more extensive than that of LGM.
Keywords:ELA  mass balance  climate reconstruction  model  Tibetan Plateau  
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