cumulus parameterization scheme meaning in Chinese
积云参数化法
Examples
- The control models are the standard mm4 using the blackadar high resolution boundary scheme , the bulk boundary scheme , the kuo cumulus parameterization scheme and explicit clouds
闭合处理湍流扩散问题，分别以原mm4中有云和无云的水份处理方案作为控制方案。 - The results of numerical experiments , using the four - dimensional variational data assimilation system of the nonhydrostatic mesoscale model mm5 , show that : the tangent linear model and adjoint model conducted by keeping the " on - off " switches the same as the basic state , can provide a good approximation of the first - order information to the nlm perturbation and a good descent direction for the minimization procedure ; switching on and off at every other time step in the kuo cumulus parameterization scheme do n ' t impact the convergence rate of cost function ; the existence of the switches do n ' t impact improvement to the mm5 model rainfall prediction because that not only specific humidity , but also wind , temperature and pressure are assimilated into the model
非静力中尺度数值模式mm5的四维变分资料同化系统进行的数值试验结果表明： “开关”变量保持与基态一致，所构造的切向线性模式能够提供关于非线性模式扰动的一阶近似，伴随模式所计算的梯度值能够为最小化过程提供较好的下降方向；郭氏降水参数化方案中对流每隔一个积分步的交替发生并不影响目标函数最小化的收敛速度； “开关”变量的存在也不影响将风、温度、气压和比湿结合起来同化对mm5降水预报准确性的提高。 - The results also show that the precipitation forecast of the system is very sensitive to cumulus parameterization scheme , planet boundary layer ( pbl ) scheme and radiation scheme . for smaller meshes , the grell cumulus parameterization scheme is better than the other three cumulus parameterization schemes that are also tested in the experiments
数值模拟试验结果还显示，模拟降水预报对积云参数化方案、边界层参数化方案、辐射参数化方案等比较敏感；在网格比较小时， grell积云参数化方案优于本文试验的另外三种积云参数化方案。