Morphometric Indicators Analysis of Relief for the Engineering Design Problems

In the practice of engineering design, the most demanded morphometric indicators of the relief, such as the average slope of the territories and the general slope of the entire territory. Based on these indicators, decisions are often made on the acceptability (adequacy) of a project for a selected territory. The article presents a comparative analysis of the existing methods of triangulation and spatial interpolation of the relief based on primary sources. The selection of primary source data is based on a rectangular regular network, which is applicable in the practice of engineering preparation of territories to various tasks of vertical planning. The reasonable problem points of the preliminary relief analysis are given for making optimal decisions on the existing methods of the digital relief model. In this regard, a new method of morphometric analysis of the relief was proposed, based only on the primary data, regardless of the choice of the method of triangulation and spatial interpolation. New definitions are given, such as: the quarter of the surface, which is a unit of the selected territory and the plane of the quarter, based on the average values of the source data of the quarter. On the basis of the proposed method, the “Geoanalyzer” software complex has been developed and some program modes of operation are given that help to visually and numerically analyze the topography of the selected territory.

Keywords: Relief; Triangulation; Spatial interpolation; Morphometric characteristics of a relief; A quarter of a relief surface; A plane of a quarter; A slope vector