Synthesizing changing tendency of East coast shoreline during lately about 30 years, 1) progressive and regressive zones of shoreline in all regions seem to repeat. 2) looking at shoreline of south zone adjacent to lately constructed or extended break...
Synthesizing changing tendency of East coast shoreline during lately about 30 years, 1) progressive and regressive zones of shoreline in all regions seem to repeat. 2) looking at shoreline of south zone adjacent to lately constructed or extended breakwater progressed, because it is thought due to effect of a longshore current flowing north. 3) zones using beach relatively tends to regress shorelines. 4) progress and regress of shoreline in zones including estuary of stream are various features as change of deposit supply from a upstream region.
Taken together the pattern of seasonal changes in the shoreline and cross section of Beach, 1) East Coast in Korea is not evident tendency of winter-erosion and summer-deposit. 2) It's different from the change in the pattern of Gangwon and Gyeongbuk coast. And 3) Important factor of short term coastal change is spatiality in Gangwon beach, however that is temporality in Kyungbuk beach.