Squall-Line Intensification via Hydrometeor Recirculation

摘要: AbstractMany studies have demonstrated the intimate connection between microphysics and deep moist convection, especially for squall lines via cold pool pathways. The present study examines four numerically simulated idealized using Regional Atmospheric Modeling System (RAMS) includes a control simulation that uses full two-moment three sensitivity experiments vary mean diameter of hail hydrometeor size distribution. Results suggest circulation centered at freezing level supports midlevel convective updraft invigoration through increased latent heating. begins with hydrometeors initiate within above are then ejected upshear because front-to-rear flow line. As falls below level, rear-inflow jet (RIJ) advects downshear into flank updraft. Because advection occur...