Tagus Water Authority Boosts Flood, Drought Resilience with SAIH Upgrade
The Tagus Water Authority (CHT) is enhancing its Automatic Hydrological Information System (SAIH) to better manage water resources and mitigate natural hazards in the Tagus basin. The project, led by Idrica and Adasa Sistemas, aims to bolster resilience against increasingly frequent and intense floods and droughts.
The SAIH network, comprising 222 stations, 30 water quality stations, 12 river gauging stations, and over 100 piezometers, will benefit from the upgrade. Idrica leads the hydrological aspects, while Adasa contributes its expertise in smart grid systems and operations. The project seeks to improve hydrological forecasting, anticipate pollution episodes, and promote sustainable resource use.
The system's effectiveness was proven during four major storms in early 2025. Idrica, along with Xylem, played a crucial role in managing these flood events. The Tagus basin, covering over 55,000 km2 and home to nearly eight million people, requires sophisticated management. Idrica's continuous monitoring and data analysis aid informed decision-making about floods, droughts, and dam releases.
The SAIH upgrade, a joint effort by the Tagus Water Authority, Idrica, Adasa, and Xylem, focuses on strengthening resilience to floods and droughts. By enhancing hydrological forecasting and anticipating pollution episodes, the project seeks to ensure sustainable water resource use and protect the eight million people living in the Tagus basin.
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