USGS 2009 digital data Data Series 470 Menlo Park, CA U.S. Geological Survey, Western Earth Surface Processes Team <http://pubs.usgs.gov/ds/470/> Brian D. Collins Robert Kayen Diane Minasian Thomas Reiss 2009 1.0 Data Series 470 Menlo Park, CA U.S. Geological Survey, Western Earth Surface Processes Team http://pubs.usgs.gov/ds/470/ Provides topographic point data of levees and surrounding terrain This data set was developed to present topographic point data of the post-failure condition of levee failures in New Orleans, Louisiana following Hurricane Katrina. The data sets can be used by engineers, scientists, and GIS specialists to inform public officials, policy makers, and the general public. Additional information about the field activities from which this data set was derived are available online from the USGS Coastal and Marine Geology InfoBank at http://walrus.wr.usgs.gov/infobank/n/no105la/html/n-o1-05-la.meta.html and at http://walrus.wr.usgs.gov/infobank/n/no106la/html/n-o1-06-la.meta.html. 20051009 20051013 ground condition complete As needed -90.124093 -89.932038 30.037132 29.968044 General U.S. Geological Survey USGS Western Earth Surface Processes Team Coastal and Marine Geology Program Western Coastal and Marine Geology lidar levees levee failures hurricane Hurricane Katrina storm hazards ISO 19115 Topic Category elevation geoscientificInformation oceans inlandWaters structure General 17th Street Canal Orleans Canal London Avenue Canal Lakefront Airport Port of New Orleans New Orleans East Mississippi River Gulf Outlet MRGO Inner Harbor Navigation Canal IHNC Industrial Canal Lower Ninth Ward Geographic Names Information System (GNIS) Louisiana New Orleans None Public domain data from the U.S. government are freely redistributable with proper metadata and source atttribution. Please recognize the U.S. Geological Survey (USGS) as the source of this information. Some USGS information accessed through this means may be preliminary in nature and presented without the approval of the Director of the USGS. This information is provided with the understanding that it is not guaranteed to be correct or complete and conclusions drawn from such information are the responsibility of the user. This information is not intended for navigational purposes. U.S. Geological Survey Brian D. Collins mailing and physical address

USGS, Mail Stop 973, 345 Middlefield Road

Menlo Park CA 94025 USA (650) 329-5466 bcollins@usgs.gov <http://pubs.usgs.gov/ds/470/ Figure 2 shows the lidar data locations. Figures 7 through 14 show the data coverage available at each site. JPEG Lidar-derived points are accurate to between 11 and 164 centimeters depending on the particular data set. Point data has been visually examined and compared to other data sets of the area to assure logical consistency. Ommissions and gaps in data reflect data out of view or range of the laser scanner at time of data acquisition. Lidar-derived points are accurate to between 11 and 164 centimeters, measured as three-dimensional error. This includes 2.5 cm laser error, between 7.2 and 16.3 cm registration error, and between 3.1 and 163.5 cm georeferencing error. Lidar-derived points are accurate to between 11 and 164 centimeters, measured as three-dimensional error. This includes 2.5 cm laser error, between 7.2 and 16.3 cm registration error, and between 3.1 and 163.5 cm georeferencing error. The terrestrial lidar data was collected from between 7 and 28 scan locations at each site. Each scan location within a single site was registered to a neighboring scan location within the same site with overlapping data. All scan locations were georeferenced to GPS- surveyed coordinates from each location that formed visible features within the point cloud data. The data was filtered only for stray returns from atmospheric dust, moisture, birds, etc. and anomolouos reflections from water. 2006-2009 U.S. Geological Survey Brian D. Collins mailing and physical address

USGS, Mail Stop 973, 345 Middlefield Road

Menlo Park CA 94025 USA (650) 329-5466 bcollins@usgs.gov Point Entity point 134275229 points describe the full set of points. Universal Transverse Mercator 15 0.9996 -123.00000 0.00000 0.00000 0.00000 coordinate pair 0.000001 0.000001 meters Universal Transverse Mercator 16 0.9996 -123.00000 0.00000 0.00000 0.00000 coordinate pair 0.000001 0.000001 meters North American Datum of 1983 (NAD83) Geodetic Reference System 80 6378137.000000 298.257222 North American Vertical Datum of 1988 (NAVD88) 0.000001 meters Explicit elevation coordinate included with horizontal coordinates Points points are provided for each scan location at each site in an individual file. USGS X-Coord UTM X coordinate of data points USGS 777339.460000 in UTM Zone 15 and 212739.727000 in UTM Zone 16 787837.789000 in UTM Zone 15 and 217239.095000 in UTM Zone 16 meters 0.000001 Y-Coord UTM Y coordinate of data points USGS 3318891.593000 in UTM Zone 15 and 3322662.927000 in UTM Zone 16 3326583.748000 in UTM Zone 15 and 3323708.316000 in UTM Zone 16 meters 0.000001 Z-Coord Elevation Z coordinate of data points USGS approx. -8.000000 99.527000 meters 0.000001 Red Red color value of each point from color sensor USGS 0 255 8-bit integer color value 1 Green Green color value of each point from color sensor USGS 0 255 8-bit integer color value 1 Blue Blue color value of each point from color sensor USGS 0 255 8-bit integer color value 1 Intensity Intensity value of each point from color sensor USGS 0 2999 arbitrary scale factor 1 U.S. Geological Survey Brian D. Collins mailing and physical address

USGS, Mail Stop 973, 345 Middlefield Road

Menlo Park CA 94025 USA (650) 329-5466 bcollins@usgs.gov Although this dataset has been used by the U.S. Geological Survey, no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Reference made to any specific commercial product, process, or service by trade name, trademark, manufacturer, or otherwise does not necessarily constitute or imply its endorsement, recommendation, or favoring by the United States Government or any agency thereof. 20090623 U.S. Geological Survey Brian D. Collins mailing and physical address

USGS, Mail Stop 973, 345 Middlefield Road

Menlo Park CA 94025 USA (650) 329-5466 bcollins@usgs.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998