gov.noaa.csc.maps:20100727_NWFWMD_Leon_m573 Northwest Florida Water Management District (NWFWMD) Department of Commerce (DOC), National Oceanographic and Atmospheric Administration (NOAA), National Ocean Service (NOS), Coastal Services Center (CSC) 201104 2009 Northwest Florida Water Management District (NWFWMD)Lidar: Leon County Charleston, SC NOAA's Ocean Service, Coastal Services Center (CSC) http://csc-s-maps-q.csc.noaa.gov/dataviewer/viewer.html?missions=573&aoi=-84.717,-83.974,30.270,30.690 http://www.csc.noaa.gov/lidar http://www.csc.noaa.gov This dataset is part of a regularly scheduled update of planimetric, hydrographic, and topographic features. The dataset was created from source imagery acquired by a Leica ADS40 multispectral scanner and LAS data acquired by a Leica ALS50 Phase I Lidar sensor from January 31, 2009 through February 6, 2009. TLCGIS regularly uses digital orthophotos and planimetric/hydrographic/topographic data to support regulatory functions, land management and acquisition, planning, engineering and habitat restoration projects. LAS classifications: 1 = Unclassified 2 = Ground 7 = Noise 9 = Water 10 = Swamp A footprint of this data set may be viewed in Google Earth at: ftp://ftp.csc.noaa.gov/pub/crs/beachmap/qa_docs/fl/nwfwmd/2009_NWFWMD_Lidar_Leon_County.kmz 20090201 ground condition Complete As needed -84.717 -83.974 30.690 30.270 ISO 19115 Topic Category elevation None Bathymetry/Topography LAS Lidar None Northwest Florida Water Management District NWFWMD Tallahassee Leon County Florida USA N/A 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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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 base critical applications on this data set without full awareness of potential limitations. Mr. Greg Mauldin TLCGIS GIS Project Manager mailing and physical
County Courthouse
301 South Monroe Street
Room P313-F
Tallahassee FL 32301 USA (850) 606-5587 (850) 922-0099 gregm@mail.co.leon.fl.us 8:00 a.m. to 5:00 p.m. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3500 Verification of attribute accuracy for Lidar data involves the use of filtering techniques. Auto-filtering uses algorithms to reclassify data in the point cloud. Hand-filtering involves the analysis of a technician working in a graphic environment to reclassify the erroneous points that may remain in the Lidar point cloud after auto-filter. Calibrations of the Lidar flight line data are performed; this process is known as bore sighting. The flight lines are compared to evaluate both their relative and absolute accuracies. The dataset was reviewed to ensure completeness and accuracy. N/A NSSDA accuracy of 0.5292 feet exceeds Fundamental Vertical Accuracy (FVA) requirement of 0.6 feet 0.082296 RMSE(z) Merrick & Company 2009 Unknown Ground Control N/A tabular digital data N/A N/A Aurora, CO Merrick & Company N/A Unknown Unknown N/A N/A N/A N/A N/A N/A N/A disc 20090201 ground condition Ground Control Horizontal and vertical control was used to establish positions and elevations for reference and correlation purposes and as input to the aerotriangulation process. Control consists of Airborne GPS/IMU and ground control points for ground reference. Merrick & Company 2009 Unknown Digital Aerial Photography N/A raster digital data N/A N/A Aurora, CO Merrick & Company N/A Unknown Unknown N/A N/A N/A N/A N/A N/A N/A disc 20090201 ground condition Digital Aerial Photography Color imagery Lidar data was collected using Leica's ALS50 Phase I sensor. The raw data was verified in MARS software for complete coverage of the project area, and bore sighted to align the flight lines. Raw data files were parsed into manageable client-specific tiles. These tiles were then processed through automated filtering that separates the data into different classification groups: unclassified points, ground points, "noise" points and water. The data was next taken into MARS to reclassify the erroneous points that may remain in the Lidar point cloud after auto-filter. Ground Control Digital Aerial Photography 2009 Doug Jacoby Merrick & Company Project Manager mailing and physical
2450 S. Peoria Street
Aurora CO 80014 USA 303-353-3903 303-745-0964 doug.jacoby@merrick.com 8:00 a.m. to 5:00 p.m. The NOAA Coastal Services Center (CSC) received the lidar files in las format. The files contained lidar intensity and elevation measurements. CSC performed the following processing for data storage and Digital Coast provisioning purposes: 1. Data converted from State Plane coordinates to geographic coordinates. 2. Data converted from NAVD88 heights to ellipsoid heights using GEOID03. 3. The LAS data were sorted by latitude and the headers were updated. 201104 NOAA Coastal Services Center Clearinghouse Manager mailing and physical
2234 South Hobson Avenue
Charleston South Carolina 29405 843-740-1200 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 0 Point 0.0000001 0.0000001 Decimal degrees North American Datum of 1983 (NAD83) Geodetic Reference System 80 (GRS80) 6378137.000000 298.257222 Ellipsoid 0.01 meters Explicit elevation coordinate included with horizontal coordinates LAS classifications: 1 = Unclassified 2 = Ground 7 = Noise 9 = Water 10 = Swamp N/A NOAA Coastal Services Center Clearinghouse Manager mailing and physical
2234 South Hobson Avenue
Charleston SC 29405-2413 843-740-1200 clearinghouse@noaa.gov Downloadable Data Any conclusions drawn from analysis of this information are not the responsibility of the Northwest Florida Water Management District (NWFWMD), the NOAA 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 Standards for Digital Geospatial Metadata FGDC-STD-001-1998