The purpose of this article is a comparative analysis of models of formation of the terrain as the creation of the informational basis of decision-making in the system of land management.
The necessity of application of modern information technologies for developing models of the terrain as an information basis for decision-making in the system of land management.
Characterized software products, their strengths and weaknesses.
Determined that when you build a terrain model using information products ArcGIS provides several tools that you can use to build a terrain model from a set of points: TIN, Spline, TopoToRaster. Other interpolation methods are not appropriate to use for building terrain.
When constructing a TIN model, the point layer can be used as a network of points of condensation.
For comparison of the constructed terrain models used in comparisons of TIN models is the imposition of one on another. The simulation found that a TIN model built in the total station, coincides with the one
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constructed in ArcGIS, but TINDigitals has a number of excess edges.
By comparing the above mentioned models are that the greatest variance of elevation values, which is pretty insignificant for most purposes for which such models are built.
Certain disadvantages, which lies in the fact that in the simulation was not created layers, in particular, drainage lines, so that playback of the horizontal corresponds to the location it should occupy, and which is depicted on the plan.
A comparative analysis of the constructed relief models, set advantages and disadvantages of the instruments, which creates a certain imbalance in their application. However, the possibility of the choice of instruments depending on existing conditions, allows us to develop informed management decisions in the field of territorial development.
Keywords: TIN-model, GIS, topography, land surveying, total station, interpolation, topography, geodesy, arafathospital.