http://www.exosphere3d.com/pubwww/pages/project_gallery/cactus_1549_hudson_river.html This animation is based on all currently available data concerning the US Airways Flight 1549 crash landing on the Hudson River (Cactus 1549). Satellite imagery, elevation models and robust GIS mapping methods are utilized to create a vegetation model, terrain model and ground clutter (3D buildings). Of all available audio tracks, only two are used.