Author(s): John Lioumbas; Aikaterini Christodoulou; Nikoletta Xanthopoulou; Matina Katsiapi; Alexandros Mentes; Panagiota Stournara; Thomas Spahos; Georgia Seretoudi; Nopi Theodoridou

Linked Author(s):

Keywords: Satellite remote sensing tools; Water quality monitoring; Water level fluctuations; Polyphytos reservoir

Abstract: This study investigates the use of satellite remote sensing tools to monitor water quality and level fluctuations in the Polyphytos Reservoir, which supplies drinking water to Thessaloniki, Greece. Pollutants such as hydrocarbons and high turbidity levels affect negatively water quality, impacting at the same time the Thessaloniki Drinking Water Treatment (TDWT) process. By analyzing four years of Sentinel 2 and Landsat 8¬9 satellite imagery with open-source filters, we detect surface anomalies possibly linked to water quality degradation and compare them to reservoir level fluctuations. Meteorological data (i. e. rainfall, temperature, wind) in the region of the reservoir and laboratory analyses conducted by Thessaloniki Water Supply & Sewerage Co S. A. (EYATH SA) are also being considered. The results show the potential for water utilities to incorporate satellite remote sensing tools into standard procedures, providing critical information on reservoir water level changes and surface anomalies for improved water quality management.

DOI: https://doi.org/10.3850/978-90-833476-1-5_iahr40wc-p1446-cd

Year: 2023