|
|
|
한국수자원학회 / v.8, no., 1997년, pp.85-95 
|
( Calculation of Topographic Index with Geographic Information System ) |
| ;; ;;
|
|
|
 |
|
| |
| 초 록 |
|
|
| The multiple flow direction algorithm to calculate the spatial variation of the saturation tendency, I. e. topographic index, is integrated into the Geographic Information System, GRASS. A procedure is suggested to consider the effect of a tile system on calculating the topographic index. A small agricultural subwatershed ($3.4; extrm{km}^2$) is used for this study. The impact of a tile system on the groundwater table can be effectively considered by the Laplace's equation to the DEM. The analysis shows that a tile system has a high degree of saturation to compared to the case without tile drainage, and the predicted riparian area is well fitted to the actual watershed condition. A procedure is suggested to consider a tile system's effect on calculating the topographic index. |
| |
| 키워드 |
|
| |
|
|
|
|
Korean Journal of Hydrosciences / v.8, no., 1997년, pp.85-95
한국수자원학회
ISSN :
UCI : G100:I100-KOI(KISTI1.1003/JNL.JAKO199711920101963)
언어 : 영어 |
|
| 논문 제공 : KISTI 한국과학기술정보연구원 |
|
|
|
|
|
|
