黄河下游河口段似大地水准面精化研究

Study on the Refinement of Quasi-Geoid in the Estuary Section of the Lower Yellow River

摘要:

针对山东黄河区域大地水准面现有模型的局限性,旨在通过一系列先进的测绘技术和数据处理方法,对黄河似大地水准面进行精化处理,进一步提高模型的精度和实用性。通过对大地水准面的基础知识梳理,结合黄河下游河口段以往的相关测绘成果,构建了一套适用于黄河流域特点的精化技术方案。在实施方案的过程中,采集了大量现场测绘数据并进行了预处理,确保了后续数据分析的质量。精化结果显示,相比于原有的模型,文中提出的黄河下游河口段水准面精化模型在精度上有了显著提升,并且通过对精化结果的精度分析,验证了研究方法的有效性,为黄河地区的水资源管理、地形监测提供了更为精确的参考依据。

Abstract:

Aiming at the limitations of the existing geoid models in the Shandong section of the Yellow River, this study intends to refine the quasi-geoid of the Yellow River through a series of advanced surveying and mapping technologies and data processing methods, so as to further improve the accuracy and practicability of the model. By sorting out the basic knowledge of geoid and combining with previous relevant surveying and mapping results in the estuary section of the lower reach of Yellow River, a set of refinement technical schemes suitable for the characteristics of the Yellow River Basin is constructed. During the implementation of the scheme, a large amount of on-site surveying and mapping data were collected and preprocessed to ensure the data quality for subsequent analysis. Compared with the original model, the refinement results show that the refined quasi-geoid model for the estuary section of the lower Yellow River proposed in this paper has significantly improved the accuracy. Moreover, through the accuracy analysis of the refinement results, the effectiveness of the research method is verified, which provides a more accurate reference for water resource management and topographic monitoring in the Yellow River region.