TY - JOUR JO - Meteorology Hydrology and Water Management J2 - Meteorol. Hydrol. Water Manage. SN - 2299-3835 VL - 7 IS - 1 PY - 2019 ID - Ismail2019 TI - Evaluating the potential of Sentinel-2 satellite images for water quality characterization of artificial reservoirs: The Bin El Ouidane Reservoir case study (Morocco) AB - Monitoring water quality in large dams is becoming a necessity for protecting stored water from various forms of pollution. This process requires analysis of several samples on a weekly or monthly basis. Our study aims to determine the relationship between water quality parameters (WQP) and digital data from the Sentinel-2 satellite to estimate and map the WQP in the Bin El Ouidane Reservoir. The in situ sampling was carried out in the Bin El Ouidane Reservoir (Azilal Province), followed by analysis of physicochemical parameters in the laboratory. These measurement results were compared with the reflectance in each sampling location to investigate the correlations between bands and laboratory chemical analysis results. The correlation results showed that all studied parameters have an R2 greater than 0.52, and they can be transformed to predictive models by stepwise regression. The accuracy of our proposed models was tested using the Oum Er-Rbia Hydraulic Basin Agency data, and the results showed that only three parameters yield admissible verification results (Chlorophyll A, dissolved Oxygen and Nitrate). Those models were then used in geographic information system software to produce a thematic map of each parameter over the entire surface of the reservoir. As a conclusion, the Sentinel-2 images could help indicate the eutrophication stage in the Bin El Ouidane Reservoir, which is a major risk in major Moroccan reservoirs AU - Ismail, Karaoui AU - Boudhar, Abdelghani AU - Abdelkrim, Arioua AU - Mohammed, Hssaisoune AU - Mouatassime, Sabri El AU - Kamal, Ait Ouhamchich AU - Driss, Elhamdouni AU - Idrissi, El Amrani AU - Nouaim, Wafae SP - 31 EP - 39 DA - 2019 DO - 10.26491/mhwm/95087 UR - https://doi.org/10.26491/mhwm/95087 ER -