Abstract
The morphology variability is carried out in this study by using the historical bathymetry data. Two study areas in which the vicinity of coastal structures are selected and make a comparative study, Sendai Port and Yuriage Port. Both are located in the Sendai Coast, northeast of Japan, with the similar incoming wave condition from SE and ESE direction. Sediment is trapped in front of Breakwater at Yuriage Port; on the contrary, the severe erosion occurs in the updrift side of Sendai Port. Consequently, these phenomena should be clarified by study on morphology variability. To overcome these aspects, it needs to analyze a long-term series data set and investigate the characteristics of morphological variability in order to well understand for the perspective of coastal management.
Highlights
In recent years, the number of coastal morphology areas dramatically changed has been rapidly increased in Japan caused by the development of coastal harbors
It was found that the mainly cause of beach erosion of Futtsu-Misaki cuspate spit; located at the mouth of Tokyo Bay; is due to lack of sand from the southern coast caused by obstruction of littoral drift at Shitazu fishery harbor (Uda and Kanda 1998)
Sediment is trapped in front of Breakwater at Yuriage Port; on the contrary, the severe erosion occur in the updrift side of Sendai Port
Summary
The morphology variability is carried out in this study by using the historical bathymetry data. Two study areas in which the vicinity of coastal structures are selected and make a comparative study, Sendai Port and Yuriage Port. Both are located in the Sendai Coast, northeast of Japan, with the similar incoming wave condition from SE and ESE direction. Sediment is trapped in front of Breakwater at Yuriage Port; on the contrary, the severe erosion occurs in the updrift side of Sendai Port. These phenomena should be clarified by study on morphology variability. It needs to analyze a long-term series data set and investigate the characteristics of morphological variability in order to well understand for the perspective of coastal management
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