The Low-Resolution CCSM4
The Low-Resolution CCSM4
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DOI：
10.1175/jcli-d-11-00260.1
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发表时间：
2012-06
影响因子：
4.9
通讯作者：
C. Shields;D. Bailey;G. Danabasoglu;M. Jochum;J. Kiehl;S. Levis;Sungsu Park
中科院分区：
文献类型：
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作者：
C. Shields;D. Bailey;G. Danabasoglu;M. Jochum;J. Kiehl;S. Levis;Sungsu Park
社区气候系统模式第4版（CCSM 4）的低分辨率版本是一个计算效率高的替代中间和标准分辨率版本的完全耦合的气候系统模式。它采用了一个3.75° × 3.75°的大气水平网格和一个光谱动力学核心（T31）和一个海洋水平网格，该网格由标称3°分辨率和60个垂直水平组成。这种低分辨率版本（T31 x3）可用于各种应用，包括长期平衡模拟，开发工作和敏感性研究。T31 x3模型通过与现有观测结果进行比较，验证了现代条件下的有效性。北方半球北极地区存在着严重的问题，那里的海冰范围和厚度过大。这部分是由于T31 x3中的低热量传输，与187年的观测估计值相比，全球平均海表温度（SST）偏差为-1.54 °C。
AbstractThe low-resolution version of the Community Climate System Model, version 4 (CCSM4) is a computationally efficient alternative to the intermediate and standard resolution versions of this fully coupled climate system model. It employs an atmospheric horizontal grid of 3.75° × 3.75° and 26 levels in the vertical with a spectral dynamical core (T31) and an oceanic horizontal grid that consists of a nominal 3° resolution with 60 levels in the vertical. This low-resolution version (T31x3) can be used for a variety of applications including long equilibrium simulations, development work, and sensitivity studies. The T31x3 model is validated for modern conditions by comparing to available observations. Significant problems exist for Northern Hemisphere Arctic locales where sea ice extent and thickness are excessive. This is partially due to low heat transport in T31x3, which translates into a globally averaged sea surface temperature (SST) bias of −1.54°C compared to observational estimates from the 187...