抄録
Old maps, such as Inoh Maps and other historical ones, are prospective which might be used for determining the changes of coastal geographical features in the past. It is expected that long-term geographical changes can be known provided that the accuracy of an old map is satisfactorily high. In the present study, the changes of geographical features in Nobiru Coast, Miyagi Prefecture and Matsukawaura Lagoon, Fukushima Prefecture are examined by comparing historical and latest maps. Furthermore, long-term sediment budget analysis is carried out for the Nobiru Coast.