No. 1 in a sequence of thermal mosaics of World Trade Center site taken on October 20, 2001, more than a month after the September 11 terrorist attack upon the site. These mosaics combine multiple thermal images, which were imported into a Geographic Information System (GIS), placed atop current orthophotographs of the World Trade Center site, and had temperature values colorized. These overlays helped emergency personnel plan work and avoid areas that remained dangerously hot.
In this image, the gap at center was formerly occupied by 7 World Trade Center. The small orange dots scattered throughout are emergency, construction, and other vehicles.
October 20 2001
New York State Archives. New York (State). Office for Technology. World Trade Center geospatial data, 2001. Series B1920-04, Folder 20oct_thermal_mosaic, Image Seq31.
This image is provided for education and research purposes. Rights may be reserved. Responsibility for securing permissions to distribute, publish, reproduce or other use rest with the user. For additional information see our Copyright and Use Statement