Practitioner Inundation Scenarios Mapping (PRISM): Philippines
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Workshop Report
PRISM was launched in the Philippines in 2024, supported by the PROBLUE initiative of the World Bank, and in collaboration with the Department of Science and Technology – Philippine Atmospheric, Geophysical, and Astronomical Services Administration (DOST–PAGASA), and local government partners.
Applying a co-production approach in creating inundation maps, PRISM partnered with four pilot study areas: Navotas City in Manila Bay, Lapu Lapu City in Mactan Island, the Danajon Bank (Bohol Danajon Bank Double Barrier Reef Management Council, consisting of 10 local government units), and the Municipality of Del Carmen in Siargao Island.
PRISM worked closely with DOST-PAGASA in determining the sea level rise projections to be used. Because local partners were interested in understanding how sea level rise can aggravate storm surge risk, PRISM also produced visualizations for still water elevation of specific storm surge scenarios for each study area.
In early 2025, PEERS gathered over 90 representatives from the pilot study sites, various government agencies and non-government organizations, and local technical experts for a 3-day workshop in Manila. Participants reviewed draft inundation maps and discussed ways the maps can support adaptation planning. The workshop also explored gray and green adaptation approaches and compound threats that can exacerbate local flooding. The collaboration demonstrated the important role that co-production between practitioners and scientists plays in creating tailored tools that address local adaptation needs.
