cumulus parameterization scheme 中文意思是什麼
cumulus parameterization scheme
解釋
積雲參數化法- cumulus : n. （pl. -li ）1. 堆，堆積物。2. 【氣象學】積雲。
- parameterization : 參數化法
- scheme : n 1 計劃；方案；路線；設計。2 系統；配合；組織。3 綱目；表；清單；分類表；大綱。4 謀劃，策劃；詭...
-
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
閉合處理湍流擴散問題，分別以原mm4中有雲和無雲的水份處理方案作為控制方案。 -
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
數值模擬試驗結果還顯示，模擬降水預報對積雲參數化方案、邊界層參數化方案、輻射參數化方案等比較敏感；在網格比較小時， grell積雲參數化方案優于本文試驗的另外三種積雲參數化方案。 -
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
非靜力中尺度數值模式mm5的四維變分資料同化系統進行的數值試驗結果表明： 「開關」變量保持與基態一致，所構造的切向線性模式能夠提供關于非線性模式擾動的一階近似，伴隨模式所計算的梯度值能夠為最小化過程提供較好的下降方向；郭氏降水參數化方案中對流每隔一個積分步的交替發生並不影響目標函數最小化的收斂速度； 「開關」變量的存在也不影響將風、溫度、氣壓和比濕結合起來同化對mm5降水預報準確性的提高。
分享友人