GIS ANALYSIS OF POPULATION EVACUATION FROM FLASH FLOODS – CASE STUDY, ȚÂȘLA DRAINAGE BASIN, ROMANIA

Abstract

Țâșla watershed, composing sub-basin of the larger Vișeu basin, is a highly anthropic area, with an extremely packed residential and transportation infrastructure, mainly along the Țâșla watercourse. Mining and tourist activities have always been and still are the outcome of a great natural potential, this fact leading to the area always getting ranked as one of the top economic centers in Maramureș County. The high frequency of flash flooding is jeopardizing the socio-economic progress of the area, causing substantial damage. This paper’s goal is the adaptation of a GIS tool, proposed by researchers from the U.S. Geological Survey – USGS (Jeanne M. Jones, Peter Ng, Nathan J. Wood, 2014), used in the flash flooding population evacuation analysis, etc. This method is based upon the digital elevation model, land cover, hazard zones and safe zones analysis. The results (evacuation time, evacuation corridors, etc) can be a relevant contribution to the decision making management of the emergency situations.

Keywords

• GIS
• Tâșla
• flash flood
• evacuation
• population