CAJ | 학술논문

利用数字化的鄱阳湖1：10000比例尺水下地形高程数据，生成5 n 水平分辨率的鄱阳湖水下数字高程模型（DEM）。在此基础上，应用地理信息系统空间分析方法，提取了水下地形断面，生成了坡度、地形起伏度和地表粗糙度等地形指标数据，计算了不同水位下的曲面积和库容，分析了鄱阳湖水下地形特征。分析结果可为鄱阳湖区水利工程规划和设计、水患灾害防治提供依据。
이용수자화적파양호1：10000비례척수하지형고정수거，생성5 n 수평분변솔적파양호수하수자고정모형（DEM）。재차기출상，응용지리신식계통공간분석방법，제취료수하지형단면，생성료파도、지형기복도화지표조조도등지형지표수거，계산료불동수위하적곡면적화고용，분석료파양호수하지형특정。분석결과가위파양호구수리공정규화화설계、수환재해방치제공의거。
In this paper,by using digital topographic nap at a 1:10000 scale of Poyang Lake,the lake underwater DEM(dig-ital elevation nodel)with 5n horizontal resolution is established. According to the nodel,by applying spatial analyst of inforna-tion systen,the topographic indexes of underwater topographic sections are abstracted and the slope,terrain,slope gradient,sur-face roughness are generated. Based on the analysis data,the curved surface areas and storages under different water levels are calculated and the underwater topographic characteristics are analyzed. The calculation results can provide a basis for water re-sources project planning and water disaster control in the lake region.