Periodic Variations of Pressure, Wind and Rainfall Observed at Miyakojima during the Second Miyakojima Typhoon

[摘要] During the passage of the Second Miyakojima Typhoon the barograph at Miyakojima recorded a pronounced pressure oscillation with the period of about 50 min on September 5, 1966. The recorded oscillation extended over half a day and had a maximum double amplitude exceeding 10mb. Simultaneously, wind and rainfall intensity showed periodic variations with the approximately same period, too.It is shown that the periodic variations of these elements were associated with the counter-clockwise rotation of an elliptical eye revealed by radar observation.

[学科分类] 大气科学