Lidar

This is a lidar image of the "World Trade Center" in Manhattan , Newyork. This 3D image was created following the Sept. 11, 2002 terrorist attacks on this city and was used for research and as part of the recovery effort. Lidar (Light , Detection, And ranging) is and optical remote sensing technology that uses laser instead of radio or microwave detection to detect light particles.http://http://www.google.com/imgres?imgurl=http://www.gwu.edu/~icdrm/publications/usace911/images/toppag5.jpg&imgrefurl=http://www.gwu.edu/~icdrm/publications/usace911/generalfindings.html&usg=__yTAcas-A7sSBfnyhkjtnULZA4xc=&h=304&w=412&sz=29&hl=en&start=0&sig2=wl1p65Dzha3n6YsvwNT0kQ&tbnid=yFU4Gvrsp2WsxM:&tbnh=162&tbnw=215&ei=BphSTJfZN8OqlAf6nLwM&prev=/images%3Fq%3Dworld%2Btrade%2Bcenter%2Blidar%2Bmap%26hl%3Den%26sa%3DG%26biw%3D1276%26bih%3D579%26gbv%3D2%26tbs%3Disch:10%2C31&itbs=1&iact=hc&vpx=544&vpy=275&dur=1411&hovh=193&hovw=261&tx=167&ty=175&page=1&ndsp=10&ved=1t:429,r:7,s:0&biw=1276&bih=579