섬진강 유역 분수계의 지형적 특성

Abstract

The Seumjin drainage basin is surrounded by the drainage basins of the Youngsan, the Keumgang, theNakdong, the Mankyeong, and the Dongjin, so it has the midway characteristic in its relative situation. Considering thispoint, this paper has analyzed the topographical features of the Seumjin drainage divide. Using topographical profileanalysis and GIS, hypsometric curve, slope and relief of Seumjin drainage basin were produced. The divide whichseparates the drainages of the Seumjin and the Youngsan is slanted on the side of the Youngsan rather than on the sideof the Seumjin. The divides of the Nakdong and the Seumjin river basin are more slanted on the side of the Seumjin thanthat of the Nakdong. The divide which separates the drainages of the Seumjin and the rivers flowing into the South Seais more slanted on the side of the southern coast than that of the Seumjin. The results from comparing the altitudes ofthe areas using the hypsometric curve are that the river valley of the Seumjin is located higher than that of the Youngsanand that of the rivers flowing into the South Sea, but it is lower than that of the Keumgang and that of the Nakdong. Therelief of the Seumjin dainage divide is the higher on the western side than on the eastern side, and is higher on thesouthern side than on the northern side.