CAJ | 학술논문

将工作流思想引入到地形因子的提取中,应用可扩展标记语言( extensible markup language,XML)对地形因子流程化提取过程进行建模描述与方法研究。通过对地形因子提取过程中数据流转关系和数据输入与输出、参数执行、因子模型与驱动执行的结构化组织与描述,形成一套适用于地形因子流程化提取的模型和建模方法。在基础地形因子提取算法的基础上,采用分辨率为5 m ×5 m的数字高程模型( digital elevation model,DEM)数据,对实验区域的地形因子进行全自动流程化提取验证。同时,应用该模型对实验区域的河网进行提取,均取得了良好效果,表明该模型具有较强的普适性与可扩展性。
장공작류사상인입도지형인자적제취중,응용가확전표기어언( extensible markup language,XML)대지형인자류정화제취과정진행건모묘술여방법연구。통과대지형인자제취과정중수거류전관계화수거수입여수출、삼수집행、인자모형여구동집행적결구화조직여묘술,형성일투괄용우지형인자류정화제취적모형화건모방법。재기출지형인자제취산법적기출상,채용분변솔위5 m ×5 m적수자고정모형( digital elevation model,DEM)수거,대실험구역적지형인자진행전자동류정화제취험증。동시,응용해모형대실험구역적하망진행제취,균취득료량호효과,표명해모형구유교강적보괄성여가확전성。
The workflow technology was tentatively applied to the terrain factor extraction. The authors chose the extensible markup language ( XML ) as modeling language to study and model the process of terrain factor extraction . A set of models and modeling methods suitable for terrain factor flow extraction was formed by structured organization and description of the relationship between data transfer, input data, output data, parameters, factor model and driven execution from terrain factor extraction. The model with 5 m × 5 m resolution based on traditional terrain factor algorithm automatically extracted terrain factor from DEM data of the experimental area, with good results achieved. At the same time, the river network extraction was conducted to test the terrain factor extraction model. The results show that the model has strong adaptability and scalability.