...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Tellus. A >Equivalent finite volume and Eulerian spectral transform horizontal resolutions established from aqua-planet simulations
【24h】

Equivalent finite volume and Eulerian spectral transform horizontal resolutions established from aqua-planet simulations

机译：由水行星模拟建立的等效有限体积和欧拉光谱变换水平分辨率

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The equivalent resolutions for two different global dynamic cores are established when they are coupled to the sub-grid scale parametrization suite of the Community Atmosphere Model (CAM3). One core adopts the common Eulerian spectral transform formalism, the other adopts a finite volume approach. The equivalent resolutions are established over a range of resolutions employed today for climate models. The comparison is done in the context of the Aqua Planet Experiment (APE). Thus, it is based on the characteristics of free, unforced motions, due in large part to the dynamic component driven by the parametrized processes and explicit dissipation. The forced component arising from surface orography and land-ocean-sea-ice contrasts is not considered. The resolution equivalences are demonstrated for a number of model fields. These include selected time averaged, global and zonal averaged fields, the meridional structure of eddy kinetic energy and eddy temperature variance, the mean meridional eddy transports, the characteristics of tropical wave propagation and probability density functions of precipitation. These fields indicate that the 2° finite volume model is equivalent to T42 spectral transform model, 1° is equivalent to T85 and 0.5° is equivalent to T170. This proportional relationship does not hold at lower resolutions.
机译：当两个不同的全局动态核心与社区大气模型（CAM3）的子网格规模参数化套件耦合时，将建立等效的分辨率。一个核心采用通用的欧拉频谱变换形式主义，另一个则采用有限体积方法。等效分辨率是针对当今气候模型采用的一系列分辨率建立的。比较是在“水上星球实验”（APE）的背景下完成的。因此，它基于自由，无力运动的特性，这在很大程度上归因于参数化过程和显式耗散驱动的动态分量。不考虑由地表地形学和陆地-海洋-海冰对比引起的强迫分量。在许多模型字段中都演示了分辨率等效项。这些包括选定的时间平均场，全球和区域平均场，涡动能和涡温度变化的子午线结构，平均子午涡流，热带波传播的特征和降水的概率密度函数。这些字段表明2°有限体积模型等效于T42光谱变换模型，1°等效于T85，0.5°等效于T170。在较低的分辨率下，此比例关系不成立。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号