gov.noaa.nmfs.inport:49960 eng UTF8 dataset OCM Partners resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) 2007 South Carolina DNR Lidar: Dorchester County sc2007_scdnr_dorchester_m5106_metadata 2016-10-17 publication NOAA/NMFS/EDM 49960 https://www.fisheries.noaa.gov/inport/item/49960 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://coast.noaa.gov/dataviewer WWW:LINK-1.0-http--link Citation URL Online Resource download https://coast.noaa.gov WWW:LINK-1.0-http--link Citation URL Online Resource download Woolpert Inc. conducted a LiDAR survey to acquire LiDAR capable of producing a DEM for orthophoto rectification and able to support 2-foot contour specifications. The LiDAR data was acquired across the project area of Dorchester County, SC. The lidar data acquisition was executed in 5 sessions, from March 5 to March 7, 2007, using a Leica ALS50(83) Lidar System. The airborne GPS (ABGPS) base stations supporting the LiDAR acquisition consisted of the bases set up by the flight crews at KDYB Airport. Dual Frequency data was logged continuously for the duration of each LiDAR flight mission at a one-second sampling rate or better. The flight plan for LiDAR consisted of parallel flights in a north-south extent across the site. Ninety-seven (97) flight lines of LiDAR data were acquired. No problems were encountered during the LiDAR data acquisition phase of the project which would adversely affect the final accuracy, nor schedule of the final deliverables. High density LiDAR data acquisition within the project limits at a sufficient altitude and density to support digital terrain model (DTM) development for 2-foot contours with a vertical accuracy of 1.2-feet at the 95 percent confidence level. completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian asNeeded https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5106/supplemental/sc2007_scdnr_dorchester_m5106.kmz This graphic shows the lidar coverage for the 2007 lidar project covering Dorchester County, South Carolina. kmz 2007 temporal Lidar - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2007 South Carolina DNR Lidar: Dorchester County [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49960. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: 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. These data depict the heights at the time of the survey and are only accurate for that time. otherRestrictions Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of Towill Inc., Sanborn, SC DNR, NOAA, the Office for Coastal Management or its partners. unclassified vector eng; US elevation -80.792967 -80.075435 32.815921 33.335336 | Currentness: Ground Condition 2007-03-05 2007-03-07 A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5106/supplemental/sc2007_scdnr_dorchester_m5106.kmz false eng false none NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5106 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/5106/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. download dataset Horizontal Positional Accuracy Lidar source compiled to meet 1 m horizontal RMSE.; Quantitative Value: 1.0 meters, Test that produced the value: The 3D breaklines inherit the accuracy of the Lidar stereo pairs it was acquired from. Lidar source compiled to meet 1m horizontal accuracy. Vertical Positional Accuracy Technical specifications were to be 18.5 cm RMSE to support 2 ft contours.; Quantitative Value: 0.185 meters, Test that produced the value: Technical specifications were for 18.5 cm RMSE. Completeness Report A visual qualitative assessment was performed to ensure the data completeness against the intensity images derived from Lidar points. Conceptual Consistency Data covers the tile scheme provided for the county and was verified for correct topology. The ABGPS, IMU, and raw Leica ALS-50 LiDAR data are integrated into the LEICA ALS post processor software. The resultant file is in a LAS binary file format. The LAS file version 1.1 formats can be easily transferred from one file format to another. It is a binary file format that maintains information specific to the LiDAR data (return#, intensity value, xyz, etc.). The resultant points are produced in the geodetic coordinates referenced to the NAD83 horizontal datum and GRS80 vertical datum. The date and time for each flight line can be determined using the Julian date and time. The Julian date is a continuous count of days and fractions since noon Universal Time on January 1, 4713 BCE on the Julian calendar. 2009-01-01T00:00:00 The unedited data are classified to facilitate the application of the appropriate feature extraction filters. A combination of proprietary filters is applied as appropriate for the production of bare earth digital terrain models (dtms). Interactive editing methods are applied to those areas where it is inappropriate or impossible to use the feature extraction filters, based upon the design criteria and/or limitations of the relevant filters. These same feature extraction filters are used to produce elevation height surfaces. The LiDAR mass points were delivered in American Society for Photogrammetry and Remote Sensing LAS 1.1 format. 2009-01-01T00:00:00 Conversion from Geodetic coordinates NAD83 into State Plane coordinates (International Feet) NAD83 and conversion from ellipsoid heights (meters) into orthometric heights (U.S. Survey Feet). 2009-01-01T00:00:00 Sanborn used GeoCue software to develop LiDAR stereo models. The raster resolution was 1.0 m. 2009-01-01T00:00:00 LiDAR intensity stereo pairs were viewed in 3-D stereo using softcopy photogrammetric software; the breaklines were stereo-compiled in accordance with the Data Dictionary. The LiDARgrammetry was performed under the direct supervision of an ASPRS Certified Photogrammetrist. The breaklines conform to data format requirements outlined by the S.C. Dept. of Natural Resources project specifications. 2009-01-01T00:00:00 Vector 3D breaklines were loaded in an ESRI file geodatabase; topology rules were validated to ensure that breaklines do not intersect or overlap. 2009-01-01T00:00:00 Terrain population procedure: (1) Use ArcGIS "LAS to Multipoint" tool to output class 2 (2 and 8 for South Carolina) points to shapefile (2) Load multipoint shapefile features to geodatabase class (3) Make new terrain, use all appropriate feature classes to enforce the terrain a.HYDROGRAPHIC b.ROADBREAKLINE c.SOFTFEATURES d.ISLAND e.WATERBODY (4)Build terrain 2009-01-01T00:00:00 The NOAA Office for Coastal Management (OCM) received the files in LAZ format from the South Carolina Department of Natural Resources (SCDNR) via a HDD. The files contained lidar elevation and intensity measurements. The data were in State Plane Zone 3900, NAVD88 (orthometric) heights in meters. OCM performed the following processing for data storage and Digital Coast provisioning purposes: 1. The data were converted from State Plane coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights in meters to GRS80 (ellipsoid) heights in meters using Geoid 09. 3. Erroneous elevations were removed. 2016-10-17T00:00:00