Retreat and Regrowth of the Greenland Ice Sheet During the Last Interglacial as Simulated by the CESM2‐CISM2 Coupled Climate–Ice Sheet Model
Retreat and Regrowth of the Greenland Ice Sheet During the Last Interglacial as Simulated by the CESM2‐CISM2 Coupled Climate–Ice Sheet Model
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CESM2-CISM2 气候-冰盖耦合模型模拟末次间冰期格陵兰冰盖的退缩和再生
DOI：
10.1029/2021pa004272
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发表时间：
2021
影响因子：
3.5
通讯作者：
R. Tomas
中科院分区：
文献类型：
--
作者：
A. Sommers;B. Otto‐Bliesner;W. Lipscomb;M. Lofverstrom;S. Shafer;Patrick J. Bartlein;E. Brady;E. Kluzek;G. Leguy;K. Thayer‐Calder;R. Tomas
在最后一次间冰期，大约129到116 ka(千年前)，北极夏季气候比现在温暖，格陵兰冰盖退缩的程度比现在小。以前对格陵兰冰盖在最后一次间冰期期间海平面贡献的模型推导和地质重建估计差别很大。在这里，我们使用共同体地球系统模式(CESM2)进行了127到119ka的瞬变气候模拟，其中包括一个与大气、陆地、海洋和海冰成分交互耦合的动态冰盖组件(社区冰盖模式，CISM2)。植被分布每500年更新一次，基于每月气候学模拟的生物群，以强制BIOME4平衡植被模型。结果表明，格陵兰冰盖大幅后退，在121.9 ka时达到最小程度，相当于海平面比现在上升3.0m，随后逐渐再生。相比之下，使用基于工业化前条件的静态植被的配套模拟显示，冰盖退缩要小得多，这突显了高纬度植被分布的变化对放大冰盖响应的重要性。
During the Last Interglacial, approximately 129 to 116 ka (thousand years ago), the Arctic summer climate was warmer than the present, and the Greenland Ice Sheet retreated to a smaller extent than its current state. Previous model‐derived and geological reconstruction estimates of the sea‐level contribution of the Greenland Ice Sheet during the Last Interglacial vary widely. Here, we conduct a transient climate simulation from 127 to 119 ka using the Community Earth System Model (CESM2), which includes a dynamic ice sheet component (the Community Ice Sheet Model, CISM2) that is interactively coupled to the atmosphere, land, ocean, and sea ice components. Vegetation distribution is updated every 500 years based on biomes simulated using a monthly climatology to force the BIOME4 equilibrium vegetation model. Results show a substantial retreat of the Greenland Ice Sheet, reaching a minimum extent at 121.9 ka, equivalent to a 3.0 m rise in sea level relative to the present day, followed by gradual regrowth. In contrast, a companion simulation employing static vegetation based on pre‐industrial conditions shows a much smaller ice‐sheet retreat, highlighting the importance of the changes in high‐latitude vegetation distribution for amplifying the ice‐sheet response.
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俄罗斯远东北极地区过去 35.62 亿年基于花粉的生物群落重建——对区域尺度气候与植被关系的新见解
影响因子：
4.3
作者：
Tarasov;Andreev;Anderson;Lozhkin;Haltia;Nowaczyk;Wennrich;Brigham-Grette;Melles
通讯作者：
Melles
DOI：
10.5194/tc-2020-89
发表时间：
2020-04
期刊：
The Cryosphere
影响因子：
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作者：
J. Gregory;S. George;Robin S. Smith
通讯作者：
J. Gregory;S. George;Robin S. Smith
DOI：
10.1073/pnas.2019069118
发表时间：
2021-03-30
影响因子：
11.1
作者：
Crump, Sarah E.;Frechette, Bianca;Miller, Gifford H.
通讯作者：
Miller, Gifford H.
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DOI：
10.5194/tc-2019-319
发表时间：
2020
期刊：
--
影响因子：
--
作者：
Goelzer H
通讯作者：
Goelzer H