%0 Journal Article
%T SOME CATASTROPHE PROPERTIES OF TWO-LAYER SHEAR FLOW<br>
%A Yang Peicai
%A <br>
%J 大气科学进展
%D 1985
%I 
%X In this paper a simple current system which consists of two stratified incompressible layers is examined. For the basic equations of the motion of fluid a lower order spectrum model is established by means of Galerkin method. Adopting the difference of wind velocity between the upper and lower layers, As =as a control parameter, the bifurcation and stability of the solution of the dynamical systemare discussed. It is found that the flow states in the lower layer will have a catastrophe, when where Cg is the phase velocity of the internal inertio-gravitational wave in a geostrophic current.These results may give a reasonable explanation for the mechanism of the catastrophe phenomena, including the "pressure-jump" in the atmosphere.
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=E62459D214FD64A3C8082E4ED1ABABED5711027BBBDDD35B&cid=28A2F569B2458C17&jid=5434AFBF6CB6E7E8D67733B541F211C7&aid=36CBF01AF169F5588B7C05F760524473&yid=74E41645C164CD61&vid=0B39A22176CE99FB&iid=E158A972A605785F&sid=E3C3E274D87A8C16&eid=B7B25E832E7F23D8&journal_id=0256-1530&journal_name=大气科学进展&referenced_num=0&reference_num=0