水利与建筑工程学报
水利與建築工程學報
수리여건축공정학보
TECHNIQUE OF SEEPAGE CONTROL
2012年
4期
27-30
,共4页
ArcHydro%Tools%DEM%河网%自动提取
ArcHydro%Tools%DEM%河網%自動提取
ArcHydro%Tools%DEM%하망%자동제취
ArcHydro Tools%DEM%river network%automatic extraction
以江西省黎川县为实验区域,采用ArcHydro Tools水文分析工具来提取DEM中的河网信息。实验主要包括4个步骤：DEM预处理、确定河道流向、生成汇流栅格图和自动提取河网。分析了最小水道集水面积阈值对提取河网的影响。从提取的实验结果来看,基于ArcHydro Tools在DEM数据上提取河网信息是切实可行的。
以江西省黎川縣為實驗區域,採用ArcHydro Tools水文分析工具來提取DEM中的河網信息。實驗主要包括4箇步驟：DEM預處理、確定河道流嚮、生成彙流柵格圖和自動提取河網。分析瞭最小水道集水麵積閾值對提取河網的影響。從提取的實驗結果來看,基于ArcHydro Tools在DEM數據上提取河網信息是切實可行的。
이강서성려천현위실험구역,채용ArcHydro Tools수문분석공구래제취DEM중적하망신식。실험주요포괄4개보취：DEM예처리、학정하도류향、생성회류책격도화자동제취하망。분석료최소수도집수면적역치대제취하망적영향。종제취적실험결과래간,기우ArcHydro Tools재DEM수거상제취하망신식시절실가행적。
Taking Lichuan County in Jiangxi Province as experimental area, the river network information from DEM is extracted by using ArcHydro Tools. The process of this experiment includes 4 steps such as preparing DEM, determining flow direction matrix, building flow accumulation matrix and extracting river network automatically. The impact of the minimum waterway catchment area threshold on the extraction of river network is analyzed. The experimental results show that it is practicable to extract the river network information from DEM by using ArcHydro Tools.
