Author:
Ohya Yuta,Yamada Tomohito J.
Abstract
Abstract. Recently, floods and sediment disasters caused by line-shaped rainbands (LRBs) have increased in frequency following events such as the torrential rainfall around Tokyo of September 2015, which flooded the Kinu River, Japan. During this event, the shape of the rainfall area matched the topology of the river basin, causing water levels to rise rapidly and resulting in a serious disaster. Therefore, the shape and duration of heavy rainfall patterns are critical factors that must be considered for flood prevention. In this study, we examined features of LRBs in river basins across Japan using long-term radar raingauge data, and investigated relationships between rainfall intensity, shape, duration, and quantity.
Funder
Japan Society for the Promotion of Science
Ministry of Education, Culture, Sports, Science and Technology