COMPARISON BETWEEN LANDSAT 8 TIRS AND TABI-ITRES IMAGES TO IDENTIFY AND TO MAP THERMAL ANOMALIES ON WATER BODIES SURFACE. TARANTO CASE STUDY

In the last years, thermal images have made the detection of thermal anomalies possible. These images could represent an important tools to monitor legal or illegal outflows in coastal waters, especially in sites become contaminated and/or in sites with high naturalistic values. The objective of this study is to compare Landsat 8 Thermal Infrared Sensors (TIRS) band with TABI-320 processing both with a free and open source GIS and a remote sensing software finalized to the identification and mapping of water inflows along the coast and of submarine springs that reach the surface of Mar Piccolo sea of Taranto (Southern Italy). The approach with the TABI-320 sensors permitted detection of many other anomalies that cannot be seen with the Landsat 8 TIRS band with the same methodology, but the use of the last-one sensors is more suitable, simple and expeditious to map thermal values of the whole area. Methods, results, limits and potentialities of this approach are discussed.