An Evaluation of the Ocean and Sea Ice Climate of E3SM Using MPAS and Interannual CORE‐II Forcing
An Evaluation of the Ocean and Sea Ice Climate of E3SM Using MPAS and Interannual CORE‐II Forcing
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利用 MPAS 和年际 CORE-II 强迫对 E3SM 的海洋和海冰气候进行评估
DOI：
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发表时间：
2019
影响因子：
6.8
通讯作者：
J. Woodring
中科院分区：
文献类型：
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作者：
M. Petersen;X. Asay;A. Berres;Qingshan Chen;N. Feige;M. Hoffman;D. Jacobsen;Philip W. Jones;M. Maltrud;S. Price;T. Ringler;G. Streletz;A. Turner;Luke P. van Roekel;M. Veneziani;J. Wolfe;P. Wolfram;J. Woodring
能量亿级地球系统模式（E3 SM）是由美国能源部发起的一个新的耦合地球系统模式。在这里，我们提出了E3 SM全球模拟使用活跃的海洋和海冰，由协调海洋-冰参考实验II（CORE-II）年际大气强迫数据集驱动。E3 SM海洋和海冰组件是MPAS-海洋和MPAS-海冰，它们使用跨尺度预测模型（MPAS）框架，并在非结构化水平网格上运行。对于本研究，低分辨率网格的网格单元从30到60 km不等，高分辨率网格的网格单元从6到18 km不等。垂直网格是一个结构化的z-星星坐标，低分辨率和高分辨率分别使用60层和80层。低分辨率模拟运行了五个CORE周期（310年），海表面温度（SST）或热含量几乎没有漂移。纬向热输送（MHT）在观测范围内，而纬向翻转环流在26.5°N比观测低。最大的温度偏差发生在拉布拉多海和西部边界流（WBCs），混合层比观测在北方高纬度地区在冬季的几个月。在南极，最大混合层深度（MLD）与观测比较，但空间MLD模式相对于观测发生了变化。海冰的范围、体积和浓度与观测结果吻合得很好。在高分辨率下，海平面高度在平均值和变率方面与卫星观测结果相当。
The Energy Exascale Earth System Model (E3SM) is a new coupled Earth system model sponsored by the U.S Department of Energy. Here we present E3SM global simulations using active ocean and sea ice that are driven by the Coordinated Ocean‐ice Reference Experiments II (CORE‐II) interannual atmospheric forcing data set. The E3SM ocean and sea ice components are MPAS‐Ocean and MPAS‐Seaice, which use the Model for Prediction Across Scales (MPAS) framework and run on unstructured horizontal meshes. For this study, grid cells vary from 30 to 60 km for the low‐resolution mesh and 6 to 18 km at high resolution. The vertical grid is a structured z‐star coordinate and uses 60 and 80 layers for low and high resolution, respectively. The lower‐resolution simulation was run for five CORE cycles (310 years) with little drift in sea surface temperature (SST) or heat content. The meridional heat transport (MHT) is within observational range, while the meridional overturning circulation at 26.5°N is low compared to observations. The largest temperature biases occur in the Labrador Sea and western boundary currents (WBCs), and the mixed layer is deeper than observations at northern high latitudes in the winter months. In the Antarctic, maximum mixed layer depths (MLD) compare well with observations, but the spatial MLD pattern is shifted relative to observations. Sea ice extent, volume, and concentration agree well with observations. At high resolution, the sea surface height compares well with satellite observations in mean and variability.
影响因子：
3.2
作者：
Downes, Stephanie M.;Farneti, Riccardo;Yeager, Stephen G.
通讯作者：
Yeager, Stephen G.