| Title |
Representation of Runoff Area by means of DEM |
| Authors |
김주철(Kim, Joo Cheol) ; 윤여진(Yoon, Yeo Jin) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.5B.287 |
| Keywords |
유출역;포화도;지형지수;${\infty}$-흐름방향방법 runoff area;saturation;topographic index;${\infty}$-flow direction method |
| Abstract |
This study suggests the topographic index-based methodology which can be used to represent the saturation of soil and thereby change of variable runoff area at basin scale. ${\infty}$-flow direction method is applied to estimate topographic index because of its freedom from the restriction of 8-flow direction method as well as possibility of the minimum flow dispersion. From the comparison of topographic index distribution with the existing result the methodology is shown to be a workable one. It is judged that the representation of variable runoff area may be a systematic tool to investigate the dynamic and non-linear property of rainfall-runoff process because it can provide the explicit way to spatial distribution of basin saturation. |