LIDAR - July 2000

high resolution

LIDAR - September 15, 2001

high resolution


The above images are computerized visualizations of elevation information of the World Trade Center from July of 2000 and after the attack on September 15, 2001. These maps were produced using an airborne LIDAR system. The LIDAR (Light Detection and Ranging) system creates detailed and highly accurate elevation information by the precise timing of thousands of laser pulses striking the ground surface. This data can be manipulated in the digital environment to create an array of maps and views of the project site and to obtain precise measurements of structures, debris fields and other vital information.