TÂRNAVA MICĂ HILLS LANDSLIDES SPATIAL DISTRIBUTION ANALYSIS USING GIS

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TÂRNAVA MICĂ HILLS LANDSLIDES SPATIAL DISTRIBUTION ANALYSIS USING GIS

Journal Title: Geographia Napocensis - Year 2016, Vol 0, Issue 2

Abstract

Târnava Mică Hills Landslides Spatial Distribution Analysis Using GIS. Landslides represent an extremely frequent geomorphological phenomenon in the Transylvanian Basin, but also in Târnava Mică Hills. In this paper, we analysed the distribution of the landslides based on spatial statistics techniques and GIS. In order to analyse the distribution of the landslides we took into consideration 5 criteria: geology, height, slope, exposition and the territorial administrative units. This type of study is necessary to find out the way in which the actual landslides are distributed and on the other hand, the research will collect information on the susceptible fields which are favoured by these geomorphological processes. As a result of the aerial photo analysis (1:5000), 3191 landslides were identified and vectorized. At the level of administrative-territorial units, these cover mostly agricultural land areas. Taking into consideration the lithological conditions (the presence of friable rocks, marl, clay and poorly cemented sands) and the land use (mostly agricultural) it can be said that in the future new landslides will occur in the same slope, exposition and geological characteristics, etc. In these conditions, the identification of the susceptible areas to the landslides is beneficial for the future territorial planning actions and also to avoid building on areas which are prone to landslides.

Authors and Affiliations

RoŞian Gheorghe, Horváth Csaba, Fonogea Silviu Florin

Keywords

THE MORPHOLOGY OF TÂRNAVA MARE CORRIDOR AND IT’S CONDITIONING ON THE SETTLEMENTS AND THOROUGHFARES PLANNING (COPŞA MICĂ – BLAJ SECTOR)

Settlements and thoroughfares positioning in hilly terrains, fragmented by valleys, as in the Târnava Mare Corridor case, is influenced by the value of morphological parameters. The variety of the relief, as extension an...

Making earth quake location estimates more accurate – HypoDD analysis of the 22 April 2013, ML=4.8 Tenk , Hungary aftershock sequence

The Tenk, Hungary earthquake (ML = 4.8) occurred on 22 April 2013, which was the strongest Hungarian earthquake in the past 28 years. The routinely determined hypocenters are often suffer from phase picking errors, trave...

EP ID EP183197
DOI -
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