Journal of Japan Society for Natural Disaster Science
Online ISSN : 2434-1037
Print ISSN : 0286-6021
A Survey on Shape Recognition of Linear Precipitation Bands Targeting University Students
Koji NishiyamaYuta OharaKoji Asai
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2025 Volume 44 Issue 1 Pages 63-77

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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.
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© 2025 Japan Society for Natural Disaster Science
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