Abstract
The three-dimensional structure of meso, β-scale organized convective system was observed using a X-band RHI radar. This system which was composed of several long-lasting convective clouds had a band-shaped configuration and it developed into the band of 50km in length and 20km in width. Main constituents of the band were meso γ-scale organized multicellular convective clouds in which new cellular echoes were successively formed about 5km apart from a pre-existing cellular echo on its right flank every 20min. The band also had a multicellular structure as a whole if constituent convective clouds are regarded to be large "cells". The successive formation of new convective echoes was observed about 15km apart from a pre-existing convective echo at the rear portion of the band. This double-organized structure was closely associated with the maintenance of the band as well as its movement.
