58129 2012 Pickens Rockdale Troup m8918 Data Set Published / External 49404 DEMs - partner (no harvest) Project Completed 2012-04-09 The PSFY12 GADNR Elevation Data Task Order involves: collecting and delivering topographic elevation point data derived from multiple return light detection and ranging (LiDAR) measurements for portions of 3 counties in Georgia. The Statement of Work (SOW) was developed by the National Oceanic and Atmospheric Administration's (NOAA) Office for Coastal Management (referred to as the Center) in partnership with the Georgia Department of Natural Resources (GADNR) Environmental Protection Division (EPD). The counties included Pickens, Rockdale and Troup. The purpose of the data is for use in coastal management decision making, including applications such as flood plain mapping and water rights management. LiDAR was collected at 1.0 points per square meter (1.0m GSD) for the portions of Pickens, Rockdale and Troup Counties. This area was flown during snow free and leaf-off conditions. NOAA Contract: EA133C11CQ0009 NOAA Task Order Number: T0013 Lifts are planned to meet project specifications and are flown under cloud-free conditions in order to collect LIDAR points at an average of 1.0 meter point spacing. This allows the user to create Intensity Images, Break Lines, Hydro Flattened DEMs and fully Classified LiDAR LAS files. 10249 Theme ISO 19115 Topic Category elevation Office for Coastal Management Charleston SC Data Set As Needed las LiDAR points in LAS 1.2 format none Any conclusions drawn from the analysis of this information are not the responsibility of Photo Science, NOAA, GADNR, the Office for Coastal Management or its partners. Photo Science, Inc. acquired and post-processed the LiDAR for Pickens, Rockdale and Troup counties. Data Steward 2012-04-09 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 2012-04-09 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 2012-04-09 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 2012-04-09 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 -85.215673 -83.90863 34.576794 32.854996 Range 2012-02-25 2012-04-09 4 Foot Yes Unclassified Data is available online. URLs listed in the Data Access section. 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. These data depict the heights at the time of the survey and are only accurate for that time. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8918 2012-04-09 Organization NOAA Office for Coastal Management Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. Zip Zip https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/GA_Pickens_Rockdale_Troup_2012_8918/ 2012-04-09 Organization NOAA Office for Coastal Management Bulk Download Simple download of data files. 2019-11-01T00:00:00 GeoTIFF GeoTIFF https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12a/1419/supplemental/2012_PS_Georgia_LiDAR_Footprints.kmz Browse Graphic Browse Graphic kmz This graphic shows the lidar coverage for Pickens County, Rockdale County and Troup County in Georgia. https://coast.noaa.gov/dataviewer Data Access Viewer Online Resource Data distribution app. 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 project area requires LiDAR to be collected on average of 1.0 meter point spacing or better and vertical accuracy of 15.0 centimeters RMSE or better to support 2' contour generation when combined with breaklines. The LiDAR data was compiled to meet a 1 meter horizontal accuracy. The calibration of the LiDAR sensor itself and the calibration process of the data produced by this sensor ensure that this accuracy is met. The classified LiDAR data was tested by Photo Science, Inc. for vertical accuracy. Photo Science collected a total of 33 ground control points for use in verifying the vertical accuracy of the classified LiDAR data in Pickens, Rockdale and Troup Counties. These points were tested against the classified LiDAR data and a vertical adjustment was made to the classified LiDAR for each county in order to obtain a higher level of accuracy. All data are seamless from one tile to the next, no gaps or no data areas. The vertical unit of the data file is in survey feet with 2-decimal point precision. Quantitative Value: 0.0381 meters, Test that produced the value: RMSE in meters of classified LiDAR Datasets contain complete coverage of tiles. Deliverables were tested by Photo Science, Inc. vertical accuracy. All data are seamless from one tile to the next, no gaps or no data areas. Data were collected and processed by PhotoScience. They are being distributed by NOAA. DEMs derived from lidar Organization PhotoScience Originator lidar data Organization PhotoScience Originator 1 Applanix software was used in the post processing of the airborne GPS and inertial data that is critical to the positioning and orientation of the sensor during all flights. POSPac MMS provides the smoothed best estimate of trajectory (SBET) that is necessary for Optech's post processor to develop the point cloud from the LiDAR missions. The point cloud is the mathematical three dimensional collection of all returns from all laser pulses as determined from the aerial mission. At this point this data is ready for analysis, classification, and filtering to generate a bare earth surface model in which the above ground features are removed from the data set. The point cloud was manipulated within the Optech or Leica software; GeoCue, TerraScan, and TerraModeler software was used for the automated data classification, manual cleanup, and bare earth generation from this data. Project specific macros were used to classify the ground and to remove the side overlap between parallel flight lines. All data was manually reviewed and any remaining artifacts removed using functionality provided by TerraScan and TerraModeler. Class 2 LIDAR was used to create a bare earth surface model. The surface model was then used to heads-up digitize 2D breaklines of inland streams and rivers. Inland Ponds and Lakes of 2 acres or greater were also collected. Elevation values were assigned to all Inland Ponds and Lakes using TerraModeler functionality. Elevation values were assigned to all Inland Streams and Rivers using Photo Science proprietary software. All Class 2 LIDAR data falling inside of the collected breaklines were then classified to Class 9 and Class 2 LIDAR data falling within a proximity of three feet will be classified to Class 10 using TerraScan macro functionality. The breakline files were translated to ESRI Shapefile format using ESRI conversion tools. Data was then run through additional macros to ensure deliverable classification levels matching LAS ASPRS Classification structure. GeoCue functionality was used to ensure correct LAS Version. In house software was used as a final QA/QC check to provide LAS Analysis of the delivered tiles. Tiles were run through automated scripting within ArcMap and were combined with the Hydro Flattened Breaklines to create the 4' DEM. Final DEM tiles were clipped to the tile boundary in order to provide a seamless dataset. A manual QA review of the tiles was completed in ArcMap and Global Mapper to ensure full coverage with no gaps or slivers within the project area. 2012-01-01T00:00:00 lidar data 2 The NOAA Office for Coastal Management (OCM) received topographic DEM files in ESRI ArcGrid format. The data were converted to GeoTIFF format for ingest into the Digital Coast Data Access Viewer and to comply with the open data policy. Data are in Georgia State Plane West 1002 (NAD83) coordinates and are vertically referenced to NAVD88 using the Geoid09 model. The vertical units of the data are US survey feet. 2012-12-01T00:00:00 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 DEMs derived from lidar 49605 Data Set Cross Reference Point cloud source for these DEMs gov.noaa.nmfs.inport:58129 Kirk Waters 2019-11-01T11:42:52 Kirk Waters 2024-01-10T19:09:19 2024-01-10 OCM Partners OCMP 1002 Public No No 2022-03-16 1 Year 2023-03-16