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NVE is assisting the Department of Science and Technology Phillippine Atmospheric, Geophysical and Astronomical Services Administration (PAGASA) in improvement of the Flood Forecasting and Warning System for Magat Dam and Downstream Communities.
The Cagayan river basin is the largest in the Philippines, encompassing the provinces of Nueva Viscaya, Isabela and Cagayan. The basin is affected by recurring floods due to tropical cyclones and the northeast monsoon.
To mitigate the impacts of flooding in the valley, the Philippine Government established the Cagayan Flood Forecasting and Warning System (FFWS) in 1982. The Flood Forecasting and Warning System, which was upgraded in 1992 with the inclusion of a warning system for operation of Magat Dam (multipurpose dam for irrigation of 102,000 hectares of farmland and power production), has since encountered problems including breakdown of the communication system and some of the monitoring stations. The ability to warn affected people downstream and to operate the spillways of the Magat Dam satisfactorily in order to decrease the flooding risk is therefore very limited.
In June 2008 Norad asked NVE to assist PAGASA in the preparation of a proposal for rehabilitation and upgrading of the system. A field visit including an assessment of the station network was conducted by NVE officials in November 2008, after which the proposal was prepared in close cooperation with PAGASA on how to structure the potential Norwegian support for rehabilitation and upgrading of the Flood Forecasting and Warning System. The proposal was later approved by Norad and the Norwegian Embassy in Manila, and the agreement between the Embassy and the Department of Science and Technology of the Philippines was signed in late December last year.
