The Modified Quasi-geostrophic Barotropic Models Based on Unsteady Topography

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-geo...

Full description

Autores:
Zhao, Baojun
Sun, Wenjin
Zhan, Tianming
Tipo de recurso:
Article of journal
Fecha de publicación:
2017
Institución:
Universidad Nacional de Colombia
Repositorio:
Universidad Nacional de Colombia
Idioma:
spa
OAI Identifier:
oai:repositorio.unal.edu.co:unal/63592
Acceso en línea:
https://repositorio.unal.edu.co/handle/unal/63592
http://bdigital.unal.edu.co/64038/
Palabra clave:
55 Ciencias de la tierra / Earth sciences and geology
Quasi-geostrophic
Potential vorticity
Scale analysis
Topography
Semigeostrofía-Vorticidad potencial
análisis a escala
topografía
Rights
openAccess
License
Atribución-NoComercial 4.0 Internacional
Description
Summary: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.