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RATIONALE OF THE USE OF GIS METHODS IN MORPHOMETRIC ANALYSIS OF THE RELIEF (ON THE EXAMPLE OF THE CRIMEAN PENINSULA)
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A. Narozhnyaya
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1314-2704
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English
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21
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7.1
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• Prof. DSc. Oleksandr Trofymchuk, UKRAINE
• Prof. Dr. hab. oec. Baiba Rivza, LATVIA |
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For the territory of the Crimean Peninsula, no morphometric analysis of the entire terrain relief has been carried out using common methodology. This makes it impossible to compare the results obtained. When performing a morphometric analysis, researchers pay inadequate attention to the choice of an operational unit to be studied. This is the reason why the results obtained using the same materials differ significantly. Therefore, the purpose of the work was to conduct a morphometric analysis of the Crimean terrain relief using designer-configured automated geoinformation analysis. For analysis, we used ArcGIS 10.5 tools. SRTM (shuttle radar topographic mission) data with the resolution of 3 angular seconds was selected as initial data. As a search radius for the determination of erosional network density, it was proposed to choose the distance (in our case, it was 5 km) at which the constructed density distribution tends to normal. When selecting a cell for vertical dissection map, the limiting factor includes minimum common catchment area and interpolation mean square error. Expert analysis is required to generate slope curvature maps. The conducted morphometric analysis made it possible to classify the territory according to its terrain conditions.
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conference
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21st International Multidisciplinary Scientific GeoConference SGEM 2021
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21st International Multidisciplinary Scientific GeoConference SGEM 2021, 16 - 22 August, 2021
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Proceedings Paper
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STEF92 Technology
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SGEM International Multidisciplinary Scientific GeoConference
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SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci & Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts & Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci
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761-770
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16 - 22 August, 2021
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website
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cdrom
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7943
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relief morphometric analysis; digital elevation model; vertical dissection; erosional network density; surface curvature
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