Towards a new scheme for parametrisation of deep convection in NAME III
Towards a new scheme for parametrisation of deep convection in NAME III
复制标题
制定 NAME III 中深对流参数化的新方案
DOI：
10.1504/ijep.2014.065113
复制
发表时间：
2014
影响因子：
0.7
通讯作者：
D. Thomson
中科院分区：
文献类型：
--
作者：
E. Meneguz;D. Thomson
本文介绍了一个更新的方案，用于参数化的大气对流气象局大气扩散模式（NAME III）。在该方案中，由于对流的颗粒的垂直运输表示在1维模型的基础上的“质量通量”的方法。用经验公式计算质量通量，用对流降水量进行封闭。与气象局数值预报模型的单柱版本的质量通量相比，结果显示出良好的一致性。最后，本文还讨论了通过计算稀气包上升来估算质量通量的另一种方法。
This paper describes an updated scheme for parametrisation of atmospheric convection to be used in the Met Office Atmospheric Dispersion Model (NAME III). In this scheme, the vertical transport of particles due to convection is represented in a 1-dimensional model based on a ‘mass-flux’ approach. Empirical formulas are used to obtain the mass fluxes and the convective precipitation is used for closure. Results compared with the mass fluxes from the single column version of the Met Office’s NWP model show good agreement. Lastly, an alternative method to estimate the mass fluxes by calculating a dilute parcel ascent is also discussed.