%0 Journal Article
%T On Nonlinear Stability Theorems of 3D Quasi-geostrophic Flow
%A LIU Yongming
%A CAI Jingjing
%A <br>LIU Yongming
%A CAI Jingjing
%J 大气科学进展
%D 2006
%I 
%X Nonlinear stability criteria for quasi-geostrophic zonally symmetric flow are improved by establishing an invariant of zonal momentum. When applied to the Eady model in a periodic channel with finite zonal length, the improved nonlinear stability criterion is identical to the linear normal-mode stability criterion provided the channel meridional width is no greater than 0.8605... times its channel length (which is the geophysically relevant case).
%K 3D-Quasi-geostrophic flow
%K Nonlinear stability
%K Eady model<br>地转风
%K 稳定性
%K 大气
%K 三维模型
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=F55E5942226E653D462777999477830D&yid=37904DC365DD7266&vid=EA389574707BDED3&iid=94C357A881DFC066&sid=AF407E3178C0B145&eid=725C082EB6FD280F&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=0&reference_num=16