%0 Journal Article
%T Computational Dispersion Properties of Some Vertically Staggered Grids<br>几种垂直跳点网格计算频散性的比较研究
%A Liu Yudi
%A Ji Zhongzhen
%A Gui Qijun
%A Zhu Hongwei
%A <br>刘宇迪
%A 季仲贞
%A 桂祈军
%A 朱红伟
%J 大气科学
%D 2001
%I 
%X Two new vertically staggered grids, LZ grid and LY grid, are introduced. To account for their validities, the computational dispersion properties of LZ grid and LY grid are compared with all the other vertically staggered grids in terms of frequency and group velocity characteristics and the vertical scale ranges with group velocities of the wrong sign. Its result shows that the dispersion properties of the LZ grid are the same as those of the CP grid which is widely used and is the most optimal vertically staggered grid, and LY grid is the second one. Thus, it may provide additional choice of the appropriately vertical grid for modelers.
%K numerical weather prediction
%K vertically grid
%K dispersion property
%K group velocity<br>数值天气预报
%K 垂直网格
%K 频散特征
%K 群速度
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=46874A5A102033D774D00D819E91CD68&aid=2399A6CBA082811F&yid=14E7EF987E4155E6&vid=C5154311167311FE&iid=E158A972A605785F&sid=C81D738643975BB0&eid=A726E84831FE609B&journal_id=1006-9895&journal_name=大气科学&referenced_num=8&reference_num=7