Premium
An investigation into the sensitivity of idealised vortex interactions to initial conditions and island topography
Author(s) -
Luo Zhexian,
Liu Chongjian
Publication year - 2006
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2005gl024543
Subject(s) - barotropic fluid , vortex , geostrophic wind , advection , vorticity , typhoon , geology , vorticity equation , scale (ratio) , physics , meteorology , climatology , quantum mechanics , thermodynamics
This paper is aimed at investigating the effects of topography and initial conditions on self‐organization based on numerical experiments using the quasi‐geostrophic barotropic vorticity equation with topography‐term and advection equation models. The results show that if the topography's maximum height is less than 1.5 km then the mutual rotation of the two meso‐β vortices do not self‐organize. However, a single larger‐scale vortex is formed if this maximum topography height is larger than 1.5 km. When there is no topography present, two meso‐β vortices do not self‐organize but if a meso‐γ vortex is added then self‐organization occurs and a synoptic‐scale typhoon‐like vortex forms.