基于Modeflow下的地下水动态分析三维可视化研究与应用  

Study and application of Modeflow based 3-D visualization for dynamic analysis on groundwater

作　　者：马乐平[1] 

机构地区：[1]甘肃省疏勒河流域水资源管理局,甘肃玉门735211

出　　处：《水利水电技术》2011年第7期11-14,共4页Water Resources and Hydropower Engineering

摘　　要：基于地下水模拟软件Visual Modeflow计算得到的数据,依据年度来水量、地下水开采量对灌区地下水资源生成初始流场,设置预测时段,并经模型计算后生成预测年的流场、水位埋深、水位降深以及观测孔水位等数据文件,结合GIS区域分析方法,以空间网格划分为基础,采用三维可视化技术对模拟和预测结果进行可视化显示和分析,将区域地下水赋存环境、运动规律和动态特征直观展现,并对预测数据和常观井实际监测数据进行模型和结果验证,分析灌区地下水变化趋势,为水资源决策提供支持。In accordance with the data obtained from the calculation based on the software of the Visual Modeflow, the prediction time interval is determined for the initial flow field generated from the ground-water resources in irrigation district relied on the annual water inflow and the groundwater exploitation, and then the data such as the flow field, the buried depth, the drop- ping depth of groundwater, the groundwater level of observation well, etc. are generated through the calculation with the mod- el. Combined with GIS regional analysis method, the visualized display and analysis are made on the simulated and predicted results with the 3-D visualization technique based on the plotting of spatial grid ; from which the occurrence environment, movement regularity and dynamic feature of the regional groundwater are visually displayed, furthermore, the data from the prediction and the monitoring from the conventional observation wells are verified along with the analysis made on the changing trend of the groundwater in the irrigation district concerned, so as to provide support for the decision-making on the management of the water resources.

关 键 词：内陆河流域 地下水 动态变化 三维可视化 

分 类 号：TV121.3[水利工程—水文学及水资源]