Creation of the snow avalanche susceptibility map of the Krkonoše Mountains using GIS

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This article deals with the development of the snow avalanche susceptibility map in the Czech part of the Krkonoše Mountains using the free Geographic Information System (GIS) GRASS. The area susceptibility map consists of two components: the morphological risk map, which is derived from the digital terrain model (DTM) and describes the slope steepness, aspect and curvature of the slope, and the protecting vegetation influence map, which is based on supervised image classification (spectrozonal aerial photos) and takes into consideration the importance of vegetation cover. The final map also includes starting zones calculated on the basis of significant changes in slope steepness and approximate shapes of avalanche paths based on these zones. In the map development, the layer of measured paths of avalanche cadastre in the Czech part of the Krkonoše Mountains was used, partly to gain the morphological characteristics of starting zones and partly to check the quality of the map. … celý popis

Podrobná bibliografie

Hlavní autor:

Petr Suk

Další autoři:

Martin Klimánek, 1977-

Typ dokumentu:

Články

Publikováno v:

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis. -- ISSN 1211-8516. -- Roč. 59, č. 5 (2011), s. 237-245

Témata:

CZECH REPUBLIC

HIGHLANDS

SNOW

AVALANCHES

RISK

CARTOGRAPHY

GEOGRAPHICAL INFORMATION SYSTEMS

SLOPING LAND

VEGETATION

vyšší polohy

sníh

laviny

riziko

kartografie

geografické informační systémy

svažité pozemky

vegetace

Česko

Krkonoše (Česko a Polsko : pohoří)

Popis jednotky:

1 obr., 3 grafy, 4 tabulky

Fyzický popis:

8 il., 4 mapy

Bibliografie:

Literatura na s. 245