gov.noaa.csc.maps:2008_USACE_Huron_m587 Department of Commerce (DOC), National Oceanic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) JALBTCX (Joint Airborne Lidar Bathymetry Technical Center of eXpertise) 201107 Charleston, SC NOAA's Ocean Service, Coastal Services Center (CSC) http://csc-s-maps-q.csc.noaa.gov/dataviewer/viewer.html?missions=587&aoi-82.880709,-82.413509,42.999615,44.057515 http://csc-s-maps-q.csc.noaa.gov/dataviewer/viewer.html?keyword=lidar http://www.csc.noaa.gov/lidar http://www.csc.noaa.gov These files contain topographic and bathymetric lidar data collected by the Compact Hydrographic Airborne Rapid Total Survey (CHARTS) system along the Lake Huron coast of Michigan in Huron, Sanilac, and St. Clair Counties during August 12-17, 2008. CHARTS integrates topographic and bathymetric lidar sensors, a digital camera, and a hyperspectral scanner on a single remote sensing platform for use in coastal mapping and charting activities. Data coverage generally extends along the coastline from the waterline inland 500 meters (topography) and offshore 1,000 meters or to laser extinction (bathymetry). The topographic lidar sensor has a pulse repetition rate of 9 kHz at 1064 nm (near-infrared wavelength). The bathymetric lidar sensor has a pulse repetition rate of 1 kHz at 532 nm (green wavelength). Native lidar data is not generally in a format accessible to most Geographical Information Systems (GIS). Specialized in-house and commercial software packages are used to process the native lidar data into 3-dimensional positions that can be imported into GIS software for visualization and further analysis. Horizontal positions, provided in decimal degrees of latitude and longitude, are referenced to the North American Datum of 1983 (NAD83). Vertical positions are referenced to the NAD83 ellipsoid and provided in meters. The National Geodetic Survey's (NGS) GEOID03 model is used to transform the vertical positions from ellipsoid to orthometric heights referenced to the North American Vertical Datum of 1988 (NAVD88). Upon receipt at the NOAA Coastal Services Center, the data were converted to las format and to ellipsoid heights using GEOID03 for data storage and Digital Coast provisioning purposes. Additionally, the bathymetric lidar data points were classified according to the ASPRS LAS 1.2 classification scheme as 11 (bathymetry) and the topographic last return lidar data points were classified as 1 (unclassified). These data were collected as a part of the NCMP (National Coastal Mapping Program) to depict the elevations ABOVE AND/OR BELOW the water for the First Return OR Last Return OR Hydro in the Michigan coastal zone. Sensor malfunction in the survey area hindered the acquisition of bathymetric data in boxes 08, 09, 10, and 11 which and resulted in incomplete coverage. A footprint of this data set may be viewed in Google Earth at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/mi/2008_USACE_Great_Lakes_TopoBathy_Lidar_Michigan_Lake_Huron.kmz 20080812 20080817 ground condition Complete As needed -82.880709 -82.413509 44.057515 42.999615 ISO 19115 Topic Category elevation None Bathymetry/Topography U.S. Army Corps of Engineers, Mobile District JALBTCX CHARTS SHOALS Topography Bathymetry ASCII XYZ Lidar Geographic Names Information System United States Michigan Huron County Saint Clair County Sanilac County Bay City Port Huron None August 2008 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. JALBTCX Data Production Manager mailing and physical

7225 Stennis Airport Rd., STE 100

Kiln MS 39556 USA 228-252-1111 228-252-1121 228-252-1133 shoals-info@sam.usace.army.mil 8 am - 5 pm Monday through Friday Acknowledgement of the Joint Airborne Lidar Bathymetry Technical Center of eXpertise (JALBTCX) would be appreciated in any publications or derived products. Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 1; ESRI ArcCatalog 9.3.1.1850 JALBTCX 20090330 Unknown Rev. B5 document U.S. Geological Survey 19810501 Unknown vector digital data http://geonames.usgs.gov/ Olsen, L.M., G. Major, K. Shein, J. Scialdone, R. Vogel, S. Leicester, H. Weir, S. Ritz, T. Stevens, M. Meaux, C.Solomon, R. Bilodeau, M. Holland, T. Northcutt, R. A. Restrepo 2007 Unknown Version 6.0.0.0.0 document http://gcmd.gsfc.nasa.gov/Resources/valids/archives/keyword_list.html These data are not attributed. N/A These data are not attributed. The data provided in this file were tested against ground truth data. At these locations the lidar data matched within 0.20 meters, and different flight line data agreed within 0.20 meters. Not provided The data positions were obtained using post processed KGPS methods. The horizontal accuracy of the data is better than +/- 0.75 m. 0.75 1 Sigma The data positions were obtained using post processed KGPS methods. The vertical accuracy of the data is better than +/- 0.20 m. 0.20 1 Sigma These data were collected using the CHARTS system. It is owned by the Naval Oceanographic Office and operated through contract. The system collects topographic lidar data at 9 kHz, bathymetric lidar data at 1 kHz and RGB imagery at 1 Hz. A CASI-1500 hyperspectral line scanner is integrated with the system as well. Aircraft position, velocity and acceleration information are collected through a combination of Novatel and POS A/V 410 equipment. All raw data streams are transferred to the office for downloading and processing in SHOALS GCS software. Aircraft position data are processed using POSPac software and the results are combined with the lidar data to produce 3-D positions for each lidar shot. Upon inspection and QA/QC in the software packages Fledermaus and PFM_ABE, anomalous data are flagged as invalid. PFM_ABE's chartsLAS module then converts all valid data from ellipsoid to orthometric heights based on the NGS' GEOID03 model and exports data as a series of first return topography (TF), last return topography (TL) and bathymetry (H) ASCII files. The bathymetry files contain all of the returns from the bathymetric sensor which include returns both above and below the water. Unknown JALBTCX Data Production Manager mailing and physical

7225 Stennis Airport Rd., STE 100

Kiln MS 39556 USA 228-252-1111 228-252-1121 228-252-1133 shoals-info@sam.usace.army.mil 8am - 5pm Monday through Friday The NOAA Coastal Services Center (CSC) received unclassified files in ASCII format. The files contained LiDAR intensity and elevation measurements. CSC performed the following processing on the data for data storage and Digital Coast provisioning purposes: 1. The data (topographic last return and hydrographic lidar points) were converted from ASCII format to las format. 2. The data were converted from NAVD88 heights to ellipsoid heights using GEOID03. 3. The hydrographic lidar data points were classified according to the ASPRS LAS 1.2 classification scheme as 11 (bathymetry) and the topographic last return lidar data points were classified as 1 (unclassified). 4. The LAS header fields were sorted by latitude and updated. 201106 NOAA Coastal Services Center Clearinghouse Manager mailing and physical

2234 South Hobson Ave.

Charleston SC 29405 US 843-740-1210 clearinghouse@noaa.gov The NOAA National Geophysical Data Center (NGDC) received Lidar data files by ftp. The data received compressed containing 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 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. 20110706 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 Unknown Point 0.0000001 0.0000001 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 NOAA Coastal Services Center Clearinghouse Manager mailing and physical

2234 South Hobson Ave.

Charleston SC 29405-2413 843-740-1210 clearinghouse@noaa.gov Downloadable Data Any conclusions drawn from the analysis of this information are not the responsibility of JALBTCX, 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 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 Clearinghouse Manager mailing and physical Charleston SC 29405-2413 843-740-1210 clearinghouse@noaa.gov FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998