Abstract:

This paper presents a GIS-based geomorphological map of Milos island. In order
to create this kind of maps, one must employ a wide variety of digital processing
techniques, in order to obtain high accuracy and analysis speed. Both aerial photos
and satellite images had to be geometrically and radiometrically corrected, in order to eliminate distortions. Using digital image processing techniques, different information layers were developed and imported to the MapInfo GIS. GIS software was used for the comparative spatial and quantitative analysis of all the information layers. The GIS handled all geomorphological data as separate objects. Thus, every
object’s attributes and every distance between objects, is easily measurable. Moreover, data modifications and updates are also very quick and easy. Milos is a volcanic Aegean-sea island. Over the last decades, significant geomorphological changes have taken place, because of rapid increment of tourism. The rapid, and of a large scale, geomorphological changes that have already taken place and will continue in the future, were the reason why Milos island was selected among others to be studied from a geomorphological point of view. This paper’s aim is to record geomorphological features of Milos island in order to be compared with data that will be gathered in some years at the second stage of this study, in order to present geomorphological changes due to human activity impacts.