CAJ | 학술논문

以吉太曲流域110000数字地形图生成的 DEM数据为基础，利用 ArcGIS10．0中的 Hydrology模块，采用 D8算法确定水流流向，设置汇流累计量的阈值为1000，提取了流域有关水文信息。结果表明：①东、南、西三个方向为吉太曲流域的主要流向，西北方向所占比例最小，这与吉太曲流域整体地势由西北向东南倾斜相符；②汇流累计量阈值取1000时，计算结果与吉太曲流域河网的实际情况最为类似；③对水流长度和流域边界进行计算后得出吉太曲的长度为76．764 km，流域面积为2109 km2，与官方数据相近。
이길태곡류역110000수자지형도생성적 DEM수거위기출，이용 ArcGIS10．0중적 Hydrology모괴，채용 D8산법학정수류류향，설치회류루계량적역치위1000，제취료류역유관수문신식。결과표명：①동、남、서삼개방향위길태곡류역적주요류향，서북방향소점비례최소，저여길태곡류역정체지세유서북향동남경사상부；②회류루계량역치취1000시，계산결과여길태곡류역하망적실제정황최위유사；③대수류장도화류역변계진행계산후득출길태곡적장도위76．764 km，류역면적위2109 km2，여관방수거상근。
As the basis of DEM digital elevation data of topographic map which scale is 110 000,using the hydrology module of ArcGIS 10. 0 D8 algorithm was used to determine the water flow and setting the amount of slip cumulative threshold of 1 000 to extract the basin for hydrological information. The results are as follows:1)east,south and west directions are the main flow of the river basin,north-west of minimum percentage,Jitaiqu basin as a whole and the terrain from the northwest to southeast line;2)slip-cumulative threshold is 1 000,the river network results with the most similar situation;3)Jitaiqu calculated length is 76. 764 km,watershed area is 2 109 km2 ,and it is close to official data.