ArcGIS在生态水面淹没范围计算中的应用

Application of ArcGIS in the Calculation of Ecological Water Surface Inundation Range

利用ArcGIS软件对渭河生态水面工程进行淹没范围的计算和绘制,其目的是通过对比ArcGIS软件和传统方法计算成果的偏差,从而为日常设计工作提供更精准便捷的方法。通过利用ArcScene对河道基础数据进行核验后,分别计算出该段河道在坝址处10年、30年和达到坝顶高程时的淹没范围,最后与传统设计方法计算结果进行对比分析。最终认为ArcGIS软件在基础数据丰富的情况下计算淹没范围结论更为精准,虽与传统方法结论有偏差,但在合理范围内,足以满足设计规划需求,因此在日常设计领域中值得推荐。

The use of ArcGIS software to calculate and draw the inundation area of the Weihe River Ecological Water Surface Project is to compare the deviation of the calculation results between ArcGIS software and traditional methods,so as to provide a more accurate and convenient method for daily design work.After verifying the basic data of the river course by using ArcScene,the submerged range of the river course at the dam site for 10 years,30 years and when the dam crest elevation is reached is calculated respectively.Finally,the calculation results of the traditional design method are compared and analyzed.In the end,it is believed that ArcGIS software is more accurate in calculating the inundation range when the basic data is rich.Although this software deviates from the conclusions of traditional methods,it is sufficient to meet the needs of design planning within a reasonable range,so it is worth recommending in the field of daily design.