ZONATION OF SUBALPINE LAKES BASED ON REMOTELY SENSED WATER QUALITY PARAMETERS

Abstract. SIMILE is an INTERREG Italy-Switzerland project that aims to preserve water quality of the subalpine lakes Como, Lugano and Maggiore (Northern Italy), through integrated innovative monitoring system. For this purpose, satellite images are processed map monitor Chlorophyll-a (CHL-a), Total Suspended Solids (TSM) Lake Water Surface Temperature (LWST). This study combines these remotely sensed parameters (WPQs) maps, produced for during 2019–2020, propose discuss a zonation approach can support analysis spatial temporal dynamics selected parameters. The consists in performing cluster on combined sample WQPs monthly basis, each lake; then different lake clusters compared over time, time series patterns. Finally, patterns aggregated lakes’ areas have experienced higher or lower values 2019–2020. results show high variability under study, both seasons years; North-South gradient has been identified all pattern, requiring further investigation.