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Geo-SAFER ZamBaSulTa

The Geo-SAFER  ZAMBASULTA project aims to cover 23 sub-basins/watersheds in the Zamboanga Peninsula, Basilan, Sulu and Tawi-Tawi. The project builds upon the process flows and methodological approaches of the Phil- LiDAR 1 Program but with some enhancements and innovations that put particular attention to explaining specific issues and problems pertaining to the flooding problem, particularly siltation.

The project will process and analyze detailed LiDAR and IFSAR-derived Digital Terrain and Surface Models (DTMs and DSMs), and then utilized these as inputs to numerical simulation models for hydrologic and hydraulic characterization of the basin, and to produce detailed flood hazard maps for different flood scenarios. These scenario-based flood hazard maps will basically show which areas can get flooded when rainfall of varying duration and intensity occurs over the basin.

These hazard maps will be further analyzed to find infrastructures like building, roads and bridges that are at risk to the effects of flooding. These barangay and municipal-level flood impact assessment maps and statistics will be an important source of information for LGUs in their decision making to ensure the safety of their constituents before, during, and after a flood disaster.

There are 15 municipalities and 3 cities which will benefit from the flood hazard maps that will be generated. More importantly, the maps are not limited to flood hazards alone, but they can also be integrated in the Development Plan of the Municipality or the Province.