Geo-SAFER Southeastern Mindanao
The Geo-SAFER Mindanao: Southeastern Mindanao Project covers the critical rivers in the provinces of Compostela Valley, Davao del Norte, Davao Occidental, Davao Oriental. The proposed 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 in the watersheds and other hydrological issues.
The project will process and analyze very detailed LiDAR-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 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 important source of information for LGUs in their decision making to ensure the safety of their constituents before, during, and after a flood disaster.
In addition to detailed flood hazard mapping and impact assessment, the project will conduct hydrologic characterization of the project areas with focus on assessing the siltation and sedimentation problems.