Irma Basemap - ORNL Building Outlines

At the request of the US Department of Homeland Security (DHS), a team at the Oak Ridge National Laboratory (ORNL) has developed a method for capturing building outlines over a large area. For Hurricane Irma, ORNL assembled this collection [1] of building footprints for Florida (6.5 million), Georgia (3.5 million), Alabama (2.4 million), and the South Carolina coastal area (374k). This was intended as an overlay with predicted or observed flooding extent, to estimate the number of buildings that might be damaged. While not completely accurate, these building outlines are useful for estimating aggregate totals across large areas of interest. References [1] FEMA public FTP download site [https://data.femadata.com/NationalDisasters/HurricaneIrma/Data/Buildings/Outlines/OakRidgeNationalLaboratory/]