gov.noaa.csc.maps:tx2006_nueces Federal Emergency Management Agency (FEMA) 20061221 Charleston, SC NOAA's Ocean Service (NOS), Coastal Services Center (CSC) www.csc.noaa.gov/lidar 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 19,22,23,24,25,27,28 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. This LIDAR operation was designed to provide a high density set of masspoints within the defined areas. The data sets are suitable for the development of contours for use in hydraulic/hydrologic model development, and for assessing environmental impacts. Typical uses for the data set include: FEMA Flood Plain Map Modernization, DFIRM map updates, watersheds and other hydro studies per FEMA specifications, county mapping projects, and flood mitigation assessment. The Accuracy Assessment, Cleanliness Report and Final Report for the Nueces County Lidar may be viewed at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/tx/nueces 20060619 20060622 20060623 20060624 20060625 20060627 20060628 20060716 20060717 Publication date Complete None planned -97.944170 -97.041570 28.016539 27.556339 ISO 19115 Topic Category Elevation None Bathymetry/Topography Land Surface Topography Digital Terrain Model Elevation Data LIDAR Breaklines Contours DEM Flow vectors None United States Texas Nueces County None Users should be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions. Users should not use this data for critical applications without a full awareness of its limitations. Federal Emergency Management Agency (FEMA) Mailing address

500 C Stree, SW

Washington DC 20472 United States 877-336-2627 miphelp@mapmodteam.com Acknowledgement of FEMA would be appreciated in products derived from these data. None None Compiled to meet FEMA specs for 2 foot contours. The tested Root Mean Square Error (RMSE) in the project area was 9.668 cm (0.3172 ft) using 36 checkpoints. The Accuracy Assessment, Cleanliness Report and Final Report for the Nueces County Lidar may be viewed at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/tx/nueces 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 19,22,23,24,25,27,28 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. Dates of data processing were June 19 - October 2, 2006. 20061002 Steven Scharf Spectrum Mapping, LLC Project Manager Mailing and physical address

6207 Pan American Freeway NE

Albuquerque NM 87109 United States 505-828-2700 x108 info@specmap.com The NOAA Coastal Services Center (CSC) received the files in las format. The files contained Lidar elevation and intensity measurements. The data was in Texas State Plane coordinates - South (FIPS Zone 4205), NAD83 and NAVD88 Geoid 99 vertical datum and US Survey Feet. CSC performed the following processing to the data to make it available within the Digital Coast: 1. The data were converted from Texas State Plane coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 99. 3. The data were converted from US Survey feet to meters. 3. The LAS data were sorted by latitude and the headers were updated. 20090105 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Coastal Elevation Mapping (CEM) Project Scientist Mailing and physical address

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1200 tcm@csc.noaa.gov Point 0.000000001 0.000000001 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Ellipsoid 0.001 Meters Explicit elevation coordinate included with horizontal coordinates Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Coastal Elevation Mapping (CEM) Project Scientist Mailing and physical address

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1200 tcm@csc.noaa.gov Downloadable Data Any conclusions drawn from the analysis of this information are not the responsibility of FEMA, the Coastal Services Center or its partners. This data can be obtained on-line at the following URL: http://www.csc.noaa.gov/lidar DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Kelly Stroker Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-4603 (303) 497-6958 (303) 497-6513 kelly.stroker@noaa.gov 7:30-5:00 Mountain Contact Data Center Disclaimer While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty. The National Geophysical Data Center serves as the archive for this LIDAR data. NGDC should only be contacted for this data if it cannot be obtained from NOAA Coastal Services Center. 20090128 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Coastal Elevation Mapping (CEM) Project Scientist Mailing and physical address

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1200 tcm@csc.noaa.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998