The Philippines: The Philippines government has started developing 3D flood hazard maps for different cities. The first such map has been developed for Cagayan de Oro, which is one of the most disaster-prone cities in the country.
The maps are being created using 3D technology as part of the Climate Change Commission’s efforts. They incorporate climate change projections for the years 2020 to 2050, and expected future changes in annual mean temperature and rainfall, as well as humidity, chances of erosion, soil texture, sea level rise and other environmental risks. The data, laid on top of existing maps, helps highlight areas that could face future flooding. The map identifies areas most vulnerable to flooding with a gradation of colour – the darker the hue, the deeper the water. For instance, the purple colour in the map shows how high water might rise along the banks of the Cagayan De Oro River if heavy rainfall occurs. The map of Cagayan De Oro aims to help the government with flood-control projects and to guide infrastructure plans in the city. The project is supported by the Australian Government Overseas Aid Program through the United Nations Development Program under the Project Twin Phoenix.