Flood hazard assessment in North Greece using Remote Sensing Data (RS) with Geographical Information
Flooded area and flood hazard assessment in Gallikos catchment area (North Greece) were evaluated using remote sensing (RS) data with the geographical information system (GIS).
Image data from the Landsat ETM + were used to analyse historical flood events, which sets a hundred-year record for the inundated areas, with severe damage occurring throughout this region.
In order to estimate the flooded area accurately, the images taken during the flood and dry season which were classified into water and non-water categories were superimposed. A new flood hazard map, created from the land cover category and elevation height data which were ranked by flood affected frequency, can be used to evaluate flood risk using only RS data and elevation height data.
