Mesoscale Characteristics of Monsoonal Convection and Associated Stratiform Precipitation

• DOI: 10.1175/1520-0493(1993)121<0352:mcomca>2.0.co;2
• Publication Date: 2002-07-27T12:25:40Z
• Authors: Thomas D. Keenan; Steven A. Rutledge
• Keywords: Rainband; Mesoscale convective system; Squall line

Observations undertaken on 12 January 1990 at Darwin, Australia (12°S, 130°E), are used to document the structure of a monsoonal rainband in low-CAPE, low-shear tropical environment. Dual-Doppler radar analyses employed investigate and kinematics convective stratiform regions. A system with characteristics relatively short-lived squall line which warm rain processes play significant role production precipitation is evident. Planetary boundary layer cold-pool important organization motion system. trailing region evident mean updraft-downdraft circulation, but composed situ decaying cells. storm-relative mesoscale cyclonic circulation also observed within cloud. This vortex was maintained by thermodynamically induced midlevel convergence, convectively generated storm-scale circulations, their interaction background monsoon now.