The Modified Quasi-geostrophic Barotropic Models Based on Unsteady Topography

Earth Sciences Research Journal

Baojun Zhao¹  Wenjin Sun¹  Tianming Zhan² 

[1] College of Oceanography, HoHai University, Nanjing 210098, China;School of Technology, Nanjing Audit University, Nanjing 211815, China;

关键词: Quasi-geostrophic;    Potential vorticity;    Scale analysis;    Topography;   

DOI  :  10.15446/esrj.v21n1.63007

来源: DOAJ

【 摘 要 】

New models using scale analysis and perturbation methods were derivated starting from the shallow water equations based on barotropic fluids. In the paper, to discuss the irregular topography with different magnitudes, especially considering the condition of the vast terrain, some modified quasi-geostrophic barotropic models were obtained. The unsteady terrain is more suitable to describe the motion of the fluid state of the earth because of the change of global climate and environment, so the modified models are more rational potential vorticity equations. If we do not consider the influence of topography and other factors, the models degenerate to the general quasi-geostrophic barotropic equations in the previous studies.

【 授权许可】

Unknown