The behaviour of large‐scale model cloud schemes under idealized forcing scenarios
The behaviour of large‐scale model cloud schemes under idealized forcing scenarios
复制标题
大型模型云方案的行为低于理想的强迫场景
DOI：
10.1256/qj.02.74
复制
发表时间：
2003
影响因子：
8.9
通讯作者：
D. Gregory
中科院分区：
文献类型：
--
作者：
Damian R. Wilson;D. Gregory
广泛使用的大规模云方案的行为在均匀增温或冷却的单一网格框的理想框架中进行评估。比较了使用诊断和预测方案的一般优点和缺点，以及观测关系的特点和一般环流模式中使用的特定参数化方案。值得注意的是，所有参数化方案都不能以某种方式产生正确的行为，当网格框被强制和初始条件改变时。讨论了产生这一基本结果的原因。对均匀强迫下的预测云方案的闭包进行了研究，并开发了一个接近于理论上理想行为的闭包。©皇冠版权所有，2003。英国皇家气象学会
The behaviour of widely used large‐scale cloud schemes is assessed in the idealized framework of a single grid box forced by uniform warming or cooling. The general advantages and disadvantages of using diagnostic and prognostic schemes are compared, as are characteristics of observational relationships and specific parametrization schemes used in general‐circulation models. It is noted that all parametrization schemes fail to produce, in some way, the correct behaviour when the grid box is forced and initial conditions altered. The reasons for this fundamental result are discussed. Closures for prognostic cloud schemes under uniform forcing are investigated, and a closure developed which closely meets the theoretically ideal behaviour. © Crown copyright, 2003. Royal Meteorological Society