Open AccessSome dynamical aspects of meso-scale rainfall events as revealed by physical initialization
Author(s) -
S. K. Roy Bhowmik
Publication year - 1998
Publication title -
mausam
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.243
H-Index - 12
ISSN - 0252-9416
DOI - 10.54302/mausam.v49i1.3594
Subject(s) - initialization , climatology , scale (ratio) , storm , meteorology , data assimilation , tropical cyclone , environmental science , event (particle physics) , geology , geography , computer science , physics , cartography , quantum mechanics , programming language
In recent years, physical initialization has emerged as a powerful tool to improve initial state of dynamical model during assimilation phase. This improved initial state at high resolution global spectral model is able to provide a tropical meso-scale coverage. In this paper, model out-put is used to study some dynamical aspects of meso-scale rainfall events. Major findings of this study are : (i) Meso-scale rainfall event carries a distinct dynamic structure in vertical profiles of divergence and vertical upward motion, (ii) Meso-scale event exhibits a large diurnal variation in these vertical profiles and (iii) Vertical motion field of meso-scale organisation appears to play a significant role in tropical storm formation.