Abstract
The genesis of Mei-Yu fronts is studied by assuming the fronts are characterized by a line of low-level potential vorticity (PV) anomaly.It is proposed that the frontogenetic process is initiated by the CISK mechanism through the interactions between the PV anomaly and the convection induced by Ek-man layer pumping. The scale contraction produced by the convergence flow of the convection provides the basic frontogenetic forcing. In addition, thecross-frontal horizontal scale of the front contracts at a rate faster than what can be expected from a linear theory, due to the presence of a nonlinear feedback process. The process is due to the fact that the effect of condensation on PV is proportional to the value of absolute vorticity. These processes are illustrated using both a linear analysis and a nonlinear munerical model.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
