A Simple Model of the Resonant Interaction between Vortex Rossby and Gravity Waves

Journal of the Meteorological Society of Japan

Hirotada KANEHISA¹  Mayuko ODA² 

[1] Nonaffiliated, Ibaraki, Japan;Typhoon Department, Meteorological Research Institute, Tsukuba, Japan

关键词: typhoon;    vortex Rossby wave;    gravity wave;   

DOI  :  10.2151/jmsj.2019-006

学科分类：大气科学

来源: Meteorological Society of Japan

【 摘 要 】

 A simple conceptual model of the resonant interaction in a typhoon-like vortex between vortex Rossby waves (VRWs) and gravity waves (GWs) that are caused by the VRWs is presented. It is well-known that the VRWs in the central region of the vortex can grow by the interaction with the GWs in the outer region, but a simple conceptual model for their interaction has not yet been proposed. The proposed conceptual model is based on the buoyancy-vorticity formulation (BV-thinking), and is different from that for the barotropic and baroclinic instabilities based on PV interactions (PV-thinking).

【 授权许可】

Unknown