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Embals.es displays the status of reservoir water levels in Spain in near real time: fill percentage, capacity, and trends for more than 380 reservoirs, aggregated by province, autonomous community, and river basin, on an interactive map.
The application reuses official open data from MITECO’s Weekly Hydrological Bulletin (historical series dating back to 1988) and the SAIH systems of the river basin authorities (Duero, Ebro, Guadalquivir, Júcar, Segura, and Cantabrian) for real-time readings, the reservoir dataset for the internal river basins from the Catalan Water Agency, and precipitation forecasts from AEMET OpenData.
It includes a reservoir comparison tool, historical trend graphs compared to the average of the last 10 years, individual fact sheets for each reservoir, and summary images for sharing.
Web access is free and requires no registration.
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