gov.noaa.csc.maps:2007_SC_Jas_Col_Chas_m56 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) 20071031 Charleston, SC NOAA's Ocean Service, Coastal Services Center (CSC) http://csc-s-maps-q.csc.noaa.gov/dataviewer/viewer.html LiDAR data collection was performed utilizing a Leica ALS-50 sensor, collecting multiple return x, y, and z data as well as intensity data. LiDAR data was processed to achieve a bare ground surface, and was delivered in LAS format. Classified LAS data was also used as a base for collection of hydro features, delivered in MicroStation v8 format. This data was collected in: 1. Jasper County, SC from 20061227 to 20070216 2. Colleton County, SC from 20070216 to 20070323 Lidar data was acquired for Jasper and Colleton Counties, SC as part of a collaborative effort by state agencies, FEMA and the NOAA Coastal Services Center to provide high-resolution topographic data for floodplain mapping and other uses. 20061227 20070323 Ground Condition Complete As needed -81.283784 -80.247640 33.182564 32.035599 ISO 19115 Topic Category Elevation None Bathymetry/Topography Light Detection and Ranging LiDAR Bare Ground Surface Elevation Hydro Hydrography None US South Carolina Colleton County Jasper 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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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 it's limitations. 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 Avenue

Charleston SC 29405 US 843-740-1200 tcm@csc.noaa.gov Elevation and hydrography data was delivered covering the full extent of Jasper and Colleton Counties, South Carolina. All project tasks have been completed. No known data gaps exist (with the exception of water areas)within the project area. For Jasper County: Horizontal accuracy is 1 m based on collection specifications. For Colleton County: Horizontal accuracy is 1 m based on collection specifications. For Jasper County: Based on a control-to-LiDAR comparison, LiDAR data delivered for this project returned an RMSE of 0.06 m and an Accuracy of 0.12 m in open terrain, based on 42 points. Combined Vertical Accuracy (CVA) is 0.30 m based on 108 points. For Colleton County: Based on a control-to-LiDAR comparison, LiDAR data delivered for this project returned an RMSE of 0.068 m and an Accuracy of 0.13 m in open terrain, based on 21 points. Combined Vertical Accuracy (CVA) is 0.22 m based on 91 points. Photo Science, Inc 20070921 Unknown Hard Drive 20061227 20070323 Ground Condition LiDAR Surface Raw LiDAR elevation data utilized in production of final bare ground surface. For Jasper County: Utilizing Photo Science's two ALS-50 LiDAR sensors, data was collected to cover Jasper County, South Carolina. Data was collected in a total of 111 flightlines at a pulse rate of 75,000 points per second. For Colleton County: Utilizing Photo Science's two ALS-50 LiDAR sensors, data was collected to cover Colleton County, South Carolina. Data was collected in a total of 160 flightlines at a pulse rate of 75,000 points per second. 20070323 Photo Science, Inc Mark Meade mailing and physical address

2670 Wilhite Drive

Lexington KY 40503 US 859-277-8700 Raw LiDAR data (collected as Process Step 1) was processed to create a bare ground surface. Process included calibration of LiDAR data to remove systematic errors (utilizing Leica's ALS Processor software), adjustment of elevation data to control positions (utilizing TerraScan software for control comparisons and adjustments), and both automatic and manual editing to correctly classify ground and non-ground data (utilizing TerraScan and TerraModeler softwares). In addition, QC steps were performed before and after processing. QC steps included line-to-line vertical comparisons and coverage checks, and were performed with TerraScan and GeoCue softwares. 20070921 Photo Science, Inc Mark Meade mailing and physical address

2670 Wilhite Drive

Lexington KY 40503 US 859-277-8700 Following bare ground surface creation (Process Step 2),Photo Science utilized the resulting dataset as a source for collection of hydrographic features, including double-line drains, single-line drains, and bodies of water. Hydro features were collected from bare ground surface models in MicroStation v8 software. After collection was complete, Photo Science adjusted elevation of all hydro features to ensure proper monotonicity using FME and proprietary softwares. 20070921 Photo Science, Inc Mark Meade mailing and physical address

2670 Wilhite Drive

Lexington KY 40503 US 859-277-8700 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 data were converted from UTM (Zone 17) coordinates to geographic coordinates. 2. The LAS data were sorted by latitude and the headers were updated. 20071107 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 Avenue

Charleston SC 29405 US 843-740-1200 tcm@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. 20071226 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 Point 0.000000001 0.000000001 Decimal degrees North American Datum of 1983 (NAD83) Geodetic Reference System 80 (GRS80) 6378137.000000 298.257222 Height Above GRS80 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) CEM Project Scientist mailing and physical address

2234 South Hobson Avenue

Charleston SC 29405-2413 843-740-1200 tcm@csc.noaa.gov Downloadable data Any conclusions drawn for the analysis of this information ar not the responsibility of NOAA, the Coastal Services Center or it's partners. 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 Department of Commerce(DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) Keil Schmid CEM Project Scientist mailing and physical address

2234 South Hobson Avenue

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