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2006 Federal Emergency Management Agency (FEMA) Lidar: Nueces County, Texas
browse graphic Spectrum Mapping, LLC was tasked by MAPVI - URS Corporation, Albuquergue, to provide airborne Light Detection and Ranging (Lidar) of approximately 620 square miles around Nueces County, Texas. MAPVI (Mapping Alliance Partnership VI for FEMA Region IV) is a joint venture of URS Corporation, Greenhorne & O'Mara and Spectrum Mapping. Spectrum followed data collection and processing procedures for Federal Emergency Management Agency (FEMA) Guidelines and Specifications Appendix A. Data product deliverables included Lidar to support 2 foot contours. Spectrum's acquisition division collected the Lidar data on June 19, 22-25, 27, 28 and July 16 and 17, 2006. The project was collected with a Rams ALS50 Lidar sensor, including an inertial measurement unit (IMU) and a dual frequency Global Positioning System (GPS) receiver and antenna. Upon receipt of this data, the NOAA Coastal Serices Center reclassified all non-ground data to a classification of 1 (Unclassified) and all ground points to a classification of 2 (Ground).