49681 fl2003_swfwmd_marionco_m2546_metadata Data Set Published / External 49401 Lidar - partner (no harvest) Project Completed 2013-12-30 Merrick and Company produced one foot contours, spot elevations, and obscured areas for the Southwest Florida Water Management District. Original contact information: Contact Name: Diana Burdick Contact Org: Southwest Florida Water Management District Title: GIS Analyst Phone: 352-540-6018 Email: Diana.Burdick@swfwmd.state.fl.us Developed to support the DISTRICT's regulatory, land management and acquisition, planning, engineering, and habitat restoration projects 10325 A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2546/supplemental/fl2003_swfwmd_marioncounty.kmz Theme ISO 19115 Topic Category elevation Theme Surface Theme Terrain Office for Coastal Management Charleston SC Data Set As Needed Any conclusions drawn from the analysis of this information are not the responsibility of Merrick, SWFWMD, NOAA, the Office for Coastal Management or its partners. Acknowledgement of the Southwest Florida Water Management District would be appreciated in products derived from these data. Data Steward 2013-12-30 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 2013-12-30 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 2013-12-30 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 2013-12-30 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 Publication Date -82.545499 -81.629324 29.52831 28.954762 Discrete 2003-03-26 Discrete 2003-04-17 Yes Unclassified This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2546 The data set is dynamically generated based on user-specified parameters. ; 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. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2546 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/geoid18/2546/index.html Bulk Download Simple download of data files. https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2546/supplemental/fl2003_swfwmd_marioncounty.kmz Browse Graphic Browse Graphic kmz This graphic shows the lidar coverage for the SWFWMD Topography Survey of Marion County in Florida. 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. The coverage features horizontal positional accuracy and the assurance of that accuracy depend, in part, on the accuracy of the data inputs to the coverage and the tolerances of the coverage itself. The input is the photogrammetrically compiled vectors in Microstation design files (.dgn). The coverage model is created from an Arc Macro Language (AML) routine that follows the database design for precision, fuzzy tolerance, dangle tolerance, weed tolerance, grain tolerance, and projection parameters. ; Quantitative Value: 0.762 meters, Test that produced the value: Horizontal accuracy was tested by comparing the raw contours from each flightline against adjoining flightlines at specific points. RMSE for Z = 0.23 feet. The vertical positional accuracy of the data is verified by a control report that matches known ground control points against LIDAR acquired points. The contours are derived from a digital terrain model that meets FEMA Accuracy Standards for better than 0.6 feet vertical accuracy. ; Quantitative Value: 0.07 meters, Test that produced the value: The vertical positional accuracy of the data is verified by a control report that matches known ground control points against LIDAR acquired points. The contours are derived from a digital terrain model that meets FEMA Accuracy Standards for better than 0.6 feet vertical accuracy. complete none Ground Control 2003-05-28 Discrete 2003-05-28 Survey data for aerotriangulation and data quality control. | Source Geospatial Form: model | Type of Source Media: HDD 1 LIDAR data was collected using Merrick's ALS40 sensor. The data was field-verified for complete coverage of the project area. 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: error points, ground points, and canopy-building points. The data was next taken into a graphic environment to reclassify the erroneous points that may remain in the LIDAR point cloud after auto filter. The surface was then normalized into a digital surface model (DSM). Final data extraction for the client's keypoint (statistically significant points) and canopy-building files were then generated. Using orthophotography, planimetric features were compiled as breaklines to supplement the LIDAR data. The LIDAR digital surface model was then processed with the breaklines, and contour lines were interpolated. The contours were exported from Merrick's MARS software into Microstation. The contour data was checked for spikes and holes, and then imported into Arc/Info coverages for building topology, coding contour types, and creating annotation. Ground control collected 20030724 through 20040424. 2004-04-24T00:00:00 2 The NOAA Office for Coastal Management (OCM) received the files in las format. The files contained lidar elevation and intensity measurements. The data were in Florida State Plane West coordinates and NAVD88 (orthometric) heights in feet. OCM performed the following processing for data storage and Digital Coast provisioning purposes: 1. The data were converted from FL State Plane West coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights in feet to GRS80 (ellipsoid) heights in meters using Geoid 03. 3. The LAS data were sorted by latitude and the headers were updated. 4. Class 8 was moved to class 2 in accordance to the NOAA DAV classification scheme. 2012-08-20T00:00:00 gov.noaa.nmfs.inport:49681 Anne Ball 2017-11-15T15:21:36 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