论文标题
粗分辨率海洋模型的修改（超 - ）粘度
Modified (hyper-)viscosity for coarse-resolution ocean models
论文作者
论文摘要
我们为粗分辨率海洋模型提供了一个简单的参数化。为了取代计算昂贵的高分辨率海洋模型，我们仅基于对流方程中的粘度项的修改，为粗分辨率模型开发了一个计算廉价的参数化。它的目的是重现根据高分辨率参考解决方案或使用观测值计算的压力，速度或涡度等平均量。我们在涡流制度中的双gyre准晶状体模型上测试了这种新的参数化。我们的结果表明，所提出的方案显着改善了粗网格的能量统计和内在变化。该方法应作为未来工作中粗分辨率随机参数化的确定性基础模型。
We present a simple parameterization for coarse-resolution ocean models. To replace computationally expensive high-resolution ocean models, we develop a computationally cheap parameterization for coarse-resolution models based solely on the modification of the viscosity term in advection equations. It is meant to reproduce the mean quantities like pressure, velocity, or vorticity computed from a high-resolution reference solution or using observations. We test this new parameterization on a double-gyre quasi-geostrophic model in the eddy-permitting regime. Our results show that the proposed scheme improves significantly the energy statistics and the intrinsic variability on the coarse mesh. This method shall serve as a deterministic basis model for coarse-resolution stochastic parameterizations in future works.
