Abstract
This study conducted a questionnaire survey to investigate the range of shapes considered
as linear precipitation bands by students enrolled at Kyushu University and Yamaguchi
University, using the aspect ratio of heavy rainfall areas. The results showed that approximately
80% of the students considered heavy rainfall areas with an aspect ratio of 4.5 or higher to be
linear precipitation bands. This indicates that the students tend to identify more elongated heavy
rainfall shapes as linear precipitation bands compared to the shapes (aspect ratio of 2.5 or higher)
defined by the Japan Meteorological Agency. Finally, when comparing the results with the past
occurrence ratio of heavy rainfall areas, it was found that the occurrence ratio of heavy rainfall
areas with an aspect ratio of 4.5 or higher was only about 8% of the total.