Experimental design for three interrelated marine ice sheet and ocean model intercomparison projects: MISMIP v. 3 (MISMIP+), ISOMIP v. 2 (ISOMIP+) and MISOMIP v. 1 (MISOMIP1)
Experimental design for three interrelated marine ice sheet and ocean model intercomparison projects: MISMIP v. 3 (MISMIP+), ISOMIP v. 2 (ISOMIP+) and MISOMIP v. 1 (MISOMIP1)
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DOI：
10.5194/gmd-9-2471-2016
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发表时间：
2016-01-01
影响因子：
5.1
通讯作者：
Seroussi, Helene
中科院分区：
文献类型：
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作者：
Asay-Davis, Xylar S.;Cornford, Stephen L.;Seroussi, Helene
能够模拟移动的接地线的冰盖-海洋耦合模型刚刚出现。这类模型在研究海洋冰盖和潮水冰川的动力学方面有广泛的潜在应用，从过程研究到未来对冰质量损失和海平面上升的预测。海洋冰盖-海洋模式相互比较项目(MISOMIP)是一项社区工作，旨在设计和协调一系列模式相互比较项目(MIP)，用于理想设置中的模式评估、基于观测的模型验证和未来预测。本文描述了三个相互关联的海洋冰盖模式和区域海洋环流模式的计算实验。这些实验包括海洋冰盖MIP第三阶段(MISMIP+)下的冰盖实验、冰架-海洋MIP第二阶段下的海洋实验(ISOMIP+)和MISOMIP第一阶段下的冰盖-海洋耦合实验(MISOMIP1)。所有三个MIP都使用具有理想化基岩地形和作用力的共享域，允许直接将耦合模拟(MISOMIP1)与单独的分量模拟(MISMIP+和ISOMIP+)进行比较。这些实验在性质上与松岛冰架和阿蒙森海邻近地区有相似之处，旨在探索海洋条件变化，特别是深部温度变化对底部融化和冰动力学的影响。在今后的工作中，模型结果之间的差异将成为评估参与模型的基础。
Coupled ice sheet-ocean models capable of simulating moving grounding lines are just becoming available. Such models have a broad range of potential applications in studying the dynamics of marine ice sheets and tidewater glaciers, from process studies to future projections of ice mass loss and sea level rise. The Marine Ice Sheet-Ocean Model Intercomparison Project ( MISOMIP) is a community effort aimed at designing and coordinating a series of model intercomparison projects ( MIPs) for model evaluation in idealized setups, model verification based on observations, and future projections for key regions of the West Antarctic Ice Sheet ( WAIS).Here we describe computational experiments constituting three interrelated MIPs for marine ice sheet models and regional ocean circulation models incorporating ice shelf cavities. These consist of ice sheet experiments under the Marine Ice Sheet MIP third phase ( MISMIP+), ocean experiments under the Ice Shelf-Ocean MIP second phase ( ISOMIP+) and coupled ice sheet-ocean experiments under the MISOMIP first phase ( MISOMIP1). All three MIPs use a shared domain with idealized bedrock topography and forcing, allowing the coupled simulations ( MISOMIP1) to be compared directly to the individual component simulations ( MISMIP+ and ISOMIP+). The experiments, which have qualitative similarities to Pine Island Glacier Ice Shelf and the adjacent region of the Amundsen Sea, are designed to explore the effects of changes in ocean conditions, specifically the temperature at depth, on basal melting and ice dynamics. In future work, differences between model results will form the basis for the evaluation of the participating models.