This document is the eighth in a series of hazard-specific risk assessment modules, compiled as part of the Words into Action Guidelines on National Disaster Risk Assessment by UNISDR. This section provides a general introduction to the assessment of disaster risk due to sea-level rise.
In undertaking hazard assessment, one needs to keep in mind that because sea-level rise occurs gradually, it behaves very differently from many other hazards. Its impacts may not be immediately seen or coalesce around a single sea-level rise event. Permanent flooding on land is a direct hazard caused by sea-level rise; however, a number of indirect (secondary) hazards need to be incorporated into the assessments. These include extended damage caused by storm surges or saltwater contamination of fresh water sources.