A Numerical Study of Typhoon Megi (2010): Part Ⅰ: Rapid Intensification and Inner-core Size Increase

摘要

1.Introduction Megi (15W) was first identified as a tropical disturbance over the western North Pacific (WNP) by the Joint Typhoon Warning Center (JTWC) on 12 OCT 2010.The Japan Meteorological Agency (JMA) and JTWC began to monitor the low circulation as a tropical depression (TD).The TD further intensified into a tropical storm (TS),named Megi by JMA at 12 UTC on 12 OCT.