Semi-prognostic calculation of the meridional overturning circulation with a realistic vertical diffusivity

在水平动量方程中引入位势温度和位势盐度校正项的半预测方法，应用于单个半球中浮力驱动流动的理想三维模型。具有实际分层和垂直扩散率的经向翻转环流（MOC）的大小很小，这表明MOC的大小可能被先前的测量高估了，并且/或者MOC的很大一部分可能是由动力过程驱动的，而不是由垂直扩散驱动的。

The semi-prognostic method, which introduces a correction term for potential temperature and salinity to the horizontal momentum equation, is applied to an idealized three-dimensional model of buoyancy-driven flow in a single hemisphere. The magnitude of the meridional overturning circulation(MOC) with realistic stratification as well as vertical diffusivity is small, suggesting that the magnitude of the MOC might be overestimated by the previous measurements, and/or that a substantial part of the MOC might be driven by dynamical processes other than vertical diffusion.