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Discrete surface modeling based on Google Earth: A case study

机译:基于Google Earth的离散表面建模:一个案例研究

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Google Earth (GE) has become a powerful tool for geological, geophysical and geographical modeling; yet GE can be accepted to acquire elevation data of terrain. In this paper, we present a real study case of building the discrete surface model (DSM) at Haut-Barr Castle in France based on the elevation data of terrain points extracted from GE using the COM API. We first locate the position of Haut-Barr Castle and determine the region of the study area, then extract elevation data of terrain at Haut-Barr, and thirdly create a planar triangular mesh that covers the study area and finally generate the desired DSM by calculating the elevation of vertices in the planar mesh via interpolating with Universal Kriging (UK) and Inverse Distance Weighting (IDW). The generated DSM can reflect the features of the ground surface at Haut-Barr well, and can be used for constructing the Sealed Engineering Geological Model (SEGM) in further step.
机译:Google Earth(GE)已成为进行地质,地球物理和地理建模的强大工具;然而,可以接受GE来获取地形的高程数据。在本文中,我们提出了一个真实的研究案例,该案例基于使用COM API从GE提取的地形点的高程数据,在法国的上巴尔城堡建立离散表面模型(DSM)。我们首先找到Haut-Barr城堡的位置并确定研究区域的区域,然后提取Haut-Barr上地形的高程数据,然后再创建一个覆盖研究区域的平面三角形网格,最后通过计算得出所需的DSM通过使用通用Kriging(UK)和反距离权重(IDW)进行插值来获得平面网格中顶点的高程。生成的DSM可以反映Haut-Barr井的地表特征,并可以用于进一步构建密封工程地质模型(SEGM)。

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