作者: A. Madhulatha , M. Rajeevan
DOI: 10.1007/S00703-017-0502-4
关键词:
摘要: Main objective of the present paper is to examine role various parameterization schemes in simulating evolution mesoscale convective system (MCS) occurred over south-east India. Using Weather Research and Forecasting (WRF) model, numerical experiments are conducted by considering planetary boundary layer, microphysics, cumulus schemes. Performances different evaluated examining reflectivity, precipitation features MCS using ground-based satellite observations. Among physical schemes, Mellor–Yamada–Janjic (MYJ) layer scheme able produce deep height warm temperatures necessary for storm initiation; Thompson (THM) microphysics capable simulate reflectivity reasonable distribution hydrometeors during stages system; Betts–Miller–Janjic (BMJ) capture proper representation instability associated with MCS. Present analysis suggests that MYJ, a local turbulent kinetic energy scheme, which accounts strong vertical mixing; THM, six-class hybrid moment considers number concentration along mixing ratio rain hydrometeors; BMJ, closure adjusts thermodynamic profiles based on climatological might have contributed better performance respective model simulations. Numerical simulation carried out above combination initiation, propagation, surface variations, structure, reasonably well. This study clearly demonstrates characteristics highly sensitive choice