Case Study No. 7: Using High-resolution Imagery to Support the Post-earthquake Census in Port-au-Prince, Haiti
The International Organization for Migration, in collaboration with the National Statistics Office of Haiti, conducted a census of areas and populations affected by the 2010 earthquake. Insufficiently precise GPS and out-dated reference imagery were inadequate to the task of clarifying land tenure status. IOM therefore conducted drone flights to obtain the high-resolution imagery essential to the preparation of assessments in Haiti’s densely populated slums. The drone imagery enabled the preparation of precise maps of the enumeration areas, and the maps enabled the enumerators to pinpoint exactly which buildings to assess and to link individual buildings to their owners. Local support included volunteers from the Haiti OpenStreetMap community, who contributed directly to the project by digitizing buildings and roads.
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