一种珠江口深度基准面格网模型的建立

针对珠江口现阶段陆海高程基准不统一的事实以及由此产生的海岸带陆海数字成果无法拼接的问题,详细介绍了基于国家高程基准建立珠江口深度基准面格网模型的技术流程及构建方法。通过项目实施获取的实测数据对模型进行精度检验与方法比较,确立采用克里金内插法建立珠江口深度基准面格网模型。最后对模型的具体应用进行了阐述与展望。

Establishment of Depth Datum Grid Model Based on the National Elevation for Pearl River Estuary

Based on the fact of no unified height datum of terrestrial and marine for Pearl River Estuary, and the resulting problem that the digital results of land and sea at coastal zone can＇t join together, this paper introduces the technology process and construction method of how to set up the depth datum grid model based on the national elevation for pearl river estuary in detail. The accuracy test and method comparison of the model are conducted using the measured data of project implementation. Then, the Kriging interpolation method is determined to be used. Finally, the application of the model is described and prospected.