gov.noaa.csc.maps:MS_Merged_m36 DOC/NOAA/NOS/CSC/CRS > Coastal Remote Sensing Program, Coastal Services Center, National Ocean Service, NOAA, U.S. Department of Commerce 20061109 1st Edition http://www.csc.noaa.gov/lidar Pre- and post-hurricane Katrina LiDAR datasets of Hancock, Harrison, and Jackson Counties, MS, were merged into a seamless coverage by URS. The pre-Katrina LiDAR data was collected by EarthData International at a 5-meter posting density during the period of February 25 to March 30, 2005. Woolpert and USACE collected the post-Katina LiDAR data. Woolpert acquired 1-meter posting density data of Coastal Mississippi between the dates of September 19 and October 9, 2005. USACE collected 1-meter posting density LiDAR of the Mississippi barrier islands over the same time period. Each dataset was clipped at the approximate location of the debris line. Data south of the debris line was removed from the Mississippi LiDAR dataset. Data north of the debris line was removed from the post-Katrina LiDAR dataset. The post-Katrina LIDAR dataset was then imported into the seamless Mississippi LiDAR dataset creating a merged seamless coverage. Develop a post-hurricane Katrina LiDAR dataset that can be used to support flood-plain mapping and other coastal management applications. 20050209 20051009 ground condition Complete As needed -89.75 -88.05 30.80 29.73 None elevation lidar laser beach topography digital elevation model DEM erosion Geographic Names Information System Mississippi Hancock County Jackson County Harrison County None Any conclusions drawn from analysis of this information are not the responsibility of EarthData International, Woolpert, the USACE, NOAA or the Coastal Services Center. Users should be aware that temporal changes may have occurred since these datasets were collected and some parts of this data may no longer represent actual surface conditions.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 it's limitations. Coastal Remote Sensing Program TCM Project Scientist mailing and physical address

2234 South Hobson Avenue

Charleston South Carolina 29405 United States (843) 740-1200 csc@csc.noaa.gov 1. LiDAR data was collected and processed in accordance with FEMA guidance as published in Appendix A, February, 2002. 2. LiDAR data at the interface between the land and ocean was collected (when possible) during periods when tides were predicted to be below mean lower low water. 3. LiDAR data accuracy is in accordance with the National Standard for Spatial Data Accuracy (NSSDA). When compared to GPS survey grade points in generally flat non-vegetated areas, at least 95% of the positions have an error less than or equal to 36.3 cm (equivalent to root mean square error of 18.5 cm if errors were normally distributed). Compliance with the accuracy standard was ensured by the placement of GPS ground control prior to the acquisition of LiDAR data. The following checks were performed. 1. The ground control and airborne GPS data stream were validated through a fully analytical boresight adjustment. 2. The DTM (Digital Terrain Model) data were checked against the project control. 3. LiDAR elevation data was validated through an inspection of edge matching and visual inspection for quality (artifact removal). Complete DOC/NOAA/NOS/CSC/CRS > Coastal Remote Sensing Program, Coastal Services Center, National Ocean Service, NOAA, U.S. Department of Commerce 20061109 Firewire hard drive 20050209 20051009 Ground Condition Lidar surface Raw LiDAR elevation data The NOAA Coastal Services Center (CSC) received files in LAS format. The files contained LiDAR intensity and elevation measurements. CSC performed the following processing on the data to make it available within the LiDAR Data Retrieval Tool (LDART): 1. The las files were converted from State Plane coordinates to Geographic coordinates. 2. The las header fields were sorted by latitude and updated. 20060927 Coastal Remote Sensing Program TCM Project Scientist mailing and physical address

2234 South Hobson Avenue

Charleston South Carolina 29405 United States (843) 740-1200 csc@csc.noaa.gov The NOAA National Geophysical Data Center (NGDC) received Lidar data files on external harddrive. The disk contains LiDAR data from the NOAA Coastal Services Center. The data are currently being served via Digital Coastl at http://www.csc.noaa.gov/digitalcoast/. The data can be used to re-populate the system. The data are provided on this disk in LAS format. LAS format is an industry standard for serving LiDAR data. The data are exclusively in geographic coordinates, however, the datums used vary. Most are NAD 83, however some are in ITRF. Vertical systems include both ellipsoid (ITRF and NAD 83) and NAVD 88. For NAVD 88 values, Geiod 03 is primarily used; however, data received in NAVD 88 prior to 2003 was processed using Geoid 99. 20060103 DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Pamela Grothe Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6120 (303) 497-6958 (303) 497-6513 pamela.grothe@noaa.gov 7:30-5:00 Mountain Contact Data Center 0 Point 4.3661196314172e-10 3.76645608617288e-10 Decimal degrees North American Datum of 1983 Geodetic Reference System 80 6378137 298.257 North American Vertical Datum of 1988 0.01 meters Explicit elevation coordinate included with horizontal coordinates NOAA Coastal Services Center Coastal Remote Sensing Program Manager mailing and physical address

2234 South Hobson Avenue

Charleston SC 29405-2413 none csc@csc.noaa.gov Any conclusions drawn from analysis of this information are not the responsibility of NOAA or the Coastal Services Center. This data can be obtained on-line at the following URL: http://csc-s-maps-q.csc.noaa.gov/dataviewer/viewer.html. DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce Pamela Grothe Mailing and Physical Address

NOAA/NESDIS/NGDC E/GC1 325 Broadway

Boulder CO 80305-3328 USA (303) 497-6120 (303) 497-6958 (303) 497-6513 pamela.grothe@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. 20111119 20111119 20121119 NOAA Coastal Services Center Keil Schmid Metadata Specialist mailing and physical address

2234 South Hobson Avenue

Charleston SC 29405-2413 none metadata@csc.noaa.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998