Hazard maps of flood-prone areas are now available free of charge, courtesy of the Disaster Risk and Exposure Assessment for Mitigation (DREAM), a pioneering and big-ticket program component of DOST’s Project NOAH (Nationwide Operational Assessment of Hazards) and being implemented by the UP Training Center for Applied Geodesy and Photogrammetry (TCAGP). This was announced during the DREAM stakeholders’ meeting and press conference held at the UP-Diliman National Engineering Center last October 17, 2013. The DOST gave the LGUs a kit comprising optical discs of the digital terrain and surface models, flood hazard maps and guides to aid them in using the LiDAR data. The kit also included the LiDAR software’s user’s license and manual.
Barely two years after its inception in December 2011, DREAM has scanned 17 of the targeted 18 critical river basins in the country through LiDAR (Light Detection and Ranging), a state-of-the-art technology that can generate high-resolution, up-to-date, and three-dimensional (3D) flood hazard maps. In particular, DREAM has so far completed LiDAR-based 3D flood hazard maps for Cagayan de Oro and Compostela Valley—areas that were greatly affected by typhoons Sendong and Pablo, respectively—as well as flood plains of Cagayan de Oro, Iponan, Mandulog, Iligan, Pampanga, Davao Oriental, Compostela Valley, and Marikina. These flood hazard maps have thorough simulations, are ultra-detailed, and are the first of their kind in the country.
Dr. Enrico C. Paringit, UP DGE Associate Professor and DREAM program leader, said aside from disaster mitigation, the LGUs can use the LiDAR’s finer-scale elevation and surface data as well as flood hazard maps for generating land use maps in their areas, for resource inventory and assessment, for infrastructure planning and monitoring, and for governance.