Water bodies Monitoring is an Earth Observation (EO)-based service designed to support city authorities in monitoring and managing urban water bodies efficiently. The system leverages satellite imagery and machine learning to provide historical and near-real-time insights, reducing the need for on-site inspections and conserving water and labor. Key indicators include:

• Chlorophyll-a: A primary photosynthetic pigment in phytoplankton, serving as a direct indicator of green algal biomass.

• Secchi Viewing Depth: Derived using AI-optimized, satellite-based backscatter models, Secchi depth offers a measure of vertical water clarity.

• Algal Bloom Indicator: A risk index ranging from 1 (no risk) to 4 (very high risk), providing early warnings of harmful cyanobacterial blooms.

• Turbidity: Estimated through satellite-based algorithms grounded in radiative transfer models, capturing changes in surface reflectance to monitor sediment resuspension.

• Water Temperature: Monitored in degrees Celsius (°C) via satellite imagery, offering critical insights for aquatic ecosystem health and water resource management.

By fusing EO data with advanced analytics, this service delivers tailored, actionable information to enhance water quality oversight and urban resilience.