49877 nwfwmd2010_leon_m573_metadata Data Set Published / External 49401 Lidar - partner (no harvest) Project Completed 2011-04 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. Original contact information: Contact Name: Mr. Greg Mauldin Contact Org: TLCGIS Title: GIS Project Manager Phone: (850) 606-5587 Email: gregm@mail.co.leon.fl.us TLCGIS regularly uses digital orthophotos and planimetric/hydrographic/topographic data to support regulatory functions, land management and acquisition, planning, engineering and habitat restoration projects. 10521 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: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/573/supplemental/2009_NWFWMD_Lidar_Leon_County.kmz Theme ISO 19115 Topic Category elevation Office for Coastal Management Charleston SC Data Set As Needed LAS classifications: 1 = Unclassified 2 = Ground 7 = Noise 9 = Water 10 = Swamp N/A Any conclusions drawn from analysis of this information are not the responsibility of the Northwest Florida Water Management District (NWFWMD), the NOAA Office for Coastal Management or its partners. Data Steward 2011-04 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2011-04 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2011-04 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2011-04 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -84.717 -83.974 30.69 30.27 Discrete 2009-02-01 Yes Unclassified This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer The data set is dynamically generated based on user-specified parameters. ; 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. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=573 Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/573/index.html Bulk Download Simple download of data files. https://coast.noaa.gov Online Resource https://coast.noaa.gov/dataviewer Online Resource 2016-05-23 Date that the source FGDC record was last modified. 2017-11-14 Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details. 2018-02-08 Partial upload of Positional Accuracy fields only. 2018-03-13 Partial upload to move data access links to Distribution Info. 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. N/A NSSDA accuracy of 0.5292 feet exceeds Fundamental Vertical Accuracy (FVA) requirement of 0.6 feet; Quantitative Value: 0.082296 meters, Test that produced the value: RMSE(z) Cloud Cover: 0 The dataset was reviewed to ensure completeness and accuracy. 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. Digital Aerial Photography 2009-01-01 Discrete 2009-02-01 Color imagery | Source Geospatial Form: raster digital data | Type of Source Media: disc Ground Control 2009-01-01 Discrete 2009-02-01 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. | Source Geospatial Form: tabular digital data | Type of Source Media: disc 1 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. 2009-01-01T00:00:00 2 The NOAA Office for Coastal Management (OCM) received the lidar files in las format. The files contained lidar intensity and elevation measurements. OCM 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. 2011-04-01T00:00:00 gov.noaa.nmfs.inport:49877 Anne Ball 2017-11-15T15:22:55 SysAdmin InPortAdmin 2022-08-09T17:11:37 2022-03-16 OCM Partners OCMP 1002 Public No No 2022-03-16 1 Year 2023-03-16