New approach to incorporating the impacts of non-hydrostatic perturbations in atmospheric models

被引:2
|
作者
ZHANG Fa-Bo [1 ,2 ]
WANG Bin [1 ,3 ]
LI Li-Juan [1 ]
机构
[1] State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics (LASG), Institute of Atmospheric Physics(IAP), Chinese Academy of Sciences (CAS)
[2] College of Earth Science, University of Chinese Academy of Sciences (UCAS)
[3] Ministry of Education Key Laboratory for Earth System Modeling, Center of Earth System Science (CESS), Tsinghua University
基金
中国国家自然科学基金;
关键词
静力; 非静力; 动力框架; WRF;
D O I
暂无
中图分类号
P43 [动力气象学];
学科分类号
摘要
通过对静力和非静力模式动力框架进行对比分析,研究发现:非静力扰动主要影响大气的垂直运动,对于水平运动的影响相对而言较小,且其影响可通过一个控制其打开和关闭状态的开关性变量来予以表示。基于上述发现,提出了一套新的非静力扰动整合方案。该方案将复杂耗时的偏微分方程数值求解问题转化为基于历史数据的局部函数建模问题,且能够比较方便地应用于一般的静力模式动力框架当中,大大降低了非静力大气环流模式的研发难度和工作量。
引用
收藏
页码:379 / 384
页数:6
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