TRIAL SIMPLIFIED STORM SURGE DIAGRAM FOR PORT DISASTER PREVENTION AND MITIGATION IN OSAKA BAY

Abstract

 Port administrators and users are required to begin countermeasure actions three days or more prior to a storm surge event. Those who have neither simulator nor expert knowledge need the simplified diagram that can estimate the approximate storm surge height from fundamental typhoon parameters provided by the Japan Meteorological Agency. That is the background why we simulated the storm surges in and around Osaka Bay for various typhoon conditions and then produced the diagram for each port in the region. The diagram was examined with the tide records in Typhoon Jebi, 2018 and would be an effective tool for appropriately beginning the actions.