Studies on Reclamation Dile at River Mouth : -Method of Forecasting Disaster Occurrence at Land Reclamation by Means of Estimating Influence of Shape of Dike and Configuraion Surrounding Land Reclamation Area-

1. We proposed the method of forecasting disaster occurrence at land reclamation zone by means of calulating dangerous degree. 2. By adopting (to land reclamation zone) this method, we made clea dangerous degree of reclamation land zones which were located at seaside area in Japan. 3. Eight land reclamation districes show highest number of dangerous degree, and are mostly situated at north part of Ariake sea and Ise day. 4. Fifty-two land reclamation districts show number of dangerous degree more than 4, they are mostly in Saga, Kagoshima, Kumamoto, Yamaguchi and Aichi Prefecture. 5. Seventy-three land reclamation districts show number of dangerous degree less than 1, they are in Shimane, Tottori and Ibaragi Prefecture. (Received June 30, 1972)