49726 ga2009_usgs_potatocreek_m2530_metadata Data Set Published / External 49401 Lidar - partner (no harvest) Project Completed 2013-08-12 LiDAR collected for the upper portion of the Flint River in central georgia. 237.6 sqmiles collected between May 1st and May 4th, 2009. The data contains 1 meter spaced pointscontaining classifications of unclassified (1), ground (2), noise (7) and water (9).Nominal spacing of points at 0.58 meters. Original contact information: Contact Org: AeroMetric, Inc Phone: 920-457-3631 The purpose of this project was to produce highly detailed and accurate digitalelevation maps of a portion of the Potato Creek watershed in Georgia for use as amanagement tool and to make these data available to natural-resource managers andresearch scientists. 10371 Potato Creek is a subset of the Flint River Watershed.A footprint of this data may be viewed in Google Earth at:https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2530/supplemental/ga2009_usgs_potatocreek.KMZA LiDAR Report from the vendor for this data set may be viewed here:https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2530/supplemental/ga2009_usgs_potatocreek_qareport.pdf Theme ISO 19115 Topic Category elevation Theme TIN Office for Coastal Management Charleston SC Data Set None Planned Any conclusions drawn from the analysis of this information are not the responsibilityof Aero-Metric, USGS, NOAA, the Office for Coastal Management or its partners. Data Steward 2013-08-12 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 2013-08-12 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 2013-08-12 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 2013-08-12 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 -84.453547 -84.160765 33.250302 32.782026 Range 2009-05-01 2009-05-04 Yes Unclassified This data can be obtained on-line at the following URL:https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2530The 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 nolonger represent actual surface conditions. Users should not use this data for critical applications without a full awareness of itslimitations. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=2530 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/geoid18/2530/index.html Bulk Download Simple download of data files. https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/2530/supplemental/ga2009_usgs_potatocreek.KMZ Browse Graphic Browse Graphic kmz This graphic shows the lidar coverage for the topography of the Potato Creek LiDAR survey area in Georgia. 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. none Based on relative spacing to control points.; Quantitative Value: 1.0 meters, Test that produced the value: Data tested to meet accuracy. The accuracy assessment was performed using a standard method to compute the root mean square error (RMSE) based on a comparison of ground control points (GCP) and filtered LiDAR data points.; Quantitative Value: 0.08 meters, Test that produced the value: 8.66 cm calculated vertical accuracy. This value iscomputed by comparing ground control elevation to the classified LiDAR ground surface andrepresents the RMSE of residuals on controls within the project area. The LAS files were flown at a density sufficient to support a maximum final post spacing of 1 meter for unobscured areas. The LAS files were flown at a density sufficient to support a maximum final post spacing of 1 meter for unobscured areas. Fulton County LiDAR Survey 2009-05-26 Range 2009-05-05 2009-05-26 The Potato Creek LiDAR Survey was acquired and processed by Aero-Metric, Inc. | Source Geospatial Form: Remote sensing image | Type of Source Media: digital tape media 1 1m hydro enforced Arc ASCII Grids were loaded into Global Mapper catalog for review. Upon review itwas found that 15 original grids had excess tinning during processing and data was lost. Those 15 gridswere replaced by Aero-Metric.The replaced grids also had voids and lines across tiles, requiring repair. Repairs were made at NGTOCusing the original .las files to correct the residual line and void problems. Elevations were then checkedthrougout project with DRGs and were found to be accurate. There are no other areas of concern.Grid files were exported to 1m Image files for delivery to the NED. Each final image tile is 8994x x 6518yand is 223.7 mb in size. Shapefile of the extent of Potato Creek has been provided. Final data appears tobe very good. 2009-05-26T00:00:00 2 The NOAA Office for Coastal Management (OCM) received the files in las format with only a qualityassurance report, no metadata accompanied the data. The files contained lidar elevation and intensitymeasurements. The data were in GA State Plane 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 GA State Plane coordinates to geographic coordinates.3. The data were converted from NAVD88 (orthometric) heights in feet to GRS80 (ellipsoid) heights in meters using Geoid 03.4. Attempts were made to find the water class (9) though data received had water reclassed tounclassed along with a number of ground points, therefore processing to pull out only water classes were thwarted. 2013-08-12T00:00:00 gov.noaa.nmfs.inport:49726 Anne Ball 2017-11-15T15:21:53 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