鹿児島域における梅雨末期豪雨解析
( Analysis of Torrential Rainfall Events in Late Period of Baiu Season in Kagoshima Area )

氏名: 山口 奈智子
指導教官: 高橋 劭



 In kyushu island, torrential rainfall events often occur inlate period of baiu season. It is important to findout some features of torrential rainfall for preventing disasters .

 We analysed 4 torrential rainfall events and a non-torrent-ial case in Kagoshima to extract characteristics of torrentialrainfalls. Objects are (1)31.July,1993 (2)6.August,1993 (3)11.August,1995 (4)25.June,1995 and(5)30.June,1995(non-torrential case).

 There were 2 types in torrential rainfall cases;A.Daughtercells merge to stationary mother cell, B.Comma-cell approa-ching to mother cell.

 Still more, there were 3 causes to stop mother cell in type A; 1.Intense Cold Dome 2.Formation of Meso-high 3.Wind ori-ginated in synoptic scale effects.

 Further, we consider of precipitation mechanisms,in higher grown-up mother cells, there were a lot of ice crystals and graupel. Graupel caught supercooled droplets in mother cells,and accelerated growth themselves,and made rainfall strongly.