Woolpert 20191115 Raster digital data Product: 1-meter bare-earth raster digital elevation model (DEM) data tiles in GeoTIFF format. Geographic Extent: Approximately 7,176 square miles of QL2 lidar data across four areas of interest throughout Oklahoma; approximately 495 square miles over the Ottawa County UTM 15 AOI. Dataset Description: The OK Panhandle 2018 D18 lidar project called for the planning, acquisition, processing, and production of derivative products of lidar data to be collected at a nominal pulse spacing (NPS) of 0.71 meters. Project specifications were based on the U.S. Geological Survey National Geospatial Program Base Lidar Specification, Version 1.3. The data was developed based on a horizontal datum/projection of NAD83 (2011) UTM Zone 15, meters (EPSG 6344), and a vertical datum of NAVD88 (GEOID12B) meters. DEM data was delivered as processed GeoTIFF files formatted to 623 individual 1,500-meter x 1,500-meter tiles. Ground Conditions: Lidar was collected from February 25, 2019 through March 6, 2019 while no snow was on the ground and rivers were at or below normal levels. In order to post process the lidar data to meet task order specifications and meet ASPRS vertical accuracy guidelines, Woolpert established 85 ground control points that were used to calibrate the lidar to known ground locations established throughout the project area. An additional 316 independent accuracy checkpoints (186 NVA points and 130 VVA points), were collected and used to assess the vertical accuracy of the data. Accuracy testing was performed on a per-UTM zone basis. For the Ottawa County UTM z15 AOI, a total of 13 control points, 18 NVA points, and 35 VVA points were established. These checkpoints were not used to calibrate or post process the data. This project will support the 3DEP mission, the Natural Resources Conservation Service (NRCS) high resolution elevation enterprise program and the Federal Emergency Management Agency (FEMA) Risk Mapping, Assessment and Planning (MAP) program. USGS Contract No. G16PC00022; Task Order No. 140G0218F0438; Contractor: Woolpert. Sub-Contractor: SurvTech. Raster File Type = TIFF Bit Depth/Pixel Type = 32-bit float Raster Cell Size = 1 Meter Interpolation or Re-sampling Technique = Triangulated Irregular Network Required Vertical Accuracy = 19.6 cm NVA 20190225 20190306 ground condition Complete None planned -95.0412239222 -94.6160731038 37.0027497349 36.6668106533 318306.819985 356195.483716 4097109.97638 4059129.79508 None Model Raster DEM Remote Sensing Elevation Data Lidar None United States Oklahoma Ottawa County No restrictions apply to these data. None. However, users should be aware that temporal changes may have occurred since this dataset was collected and that some parts of these data may no longer represent actual surface conditions. Users should not use these data for critical applications without a full awareness of its limitations. Acknowledgement of the U.S. Geological Survey would be appreciated for products derived from these data. The information contained in these data is dynamic and may change over time. The data are not better than the original sources from which they were derived. It is the responsibility of the data user to use the data appropriately and within the limitations of the data for which it was requested and prepared, in general, and these data in particular. The related graphics are intended to aid the data user in acquiring relevant data. It is not appropriate to use the related graphics as data. Woolpert gives no warranty, expressed or implied, as to the accuracy, reliability, or completeness of these data. It is strongly recommended that these data are directly acquired from a Woolpert server, and not indirectly through other sources which may have changed the data in some way. Although these data have been processed successfully upon Woolpert's computer system, no warranty, expressed or implied, is made regarding the utility of the data on another system, or for general or scientific purposes; nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. Microsoft Windows 10; Esri ArcCatalog v10.4; Esri ArcMap 10.4; IPAS Pro v.1.35; LP360 v2018.1.57.4; Leica CloudPro 1.2.4; Novatel Inertial Explorer v8.60.6129; POSPac Software v. 5.3; TerraMatch v18; TerraModeler v18; TerraScan v18. Data covers the entire area specified for this project. Datasets contain complete coverage of tiles. No points have been removed or excluded. A visual qualitative assessment was performed to ensure data completeness. There are no void areas or missing data. The DEM is of good quality and data passes Non-Vegetated and Vegetated Vertical Accuracy specifications. Accuracy testing was performed on a per-UTM zone basis. The project specifications require the accuracy (ACCz) of the derived DEM be calculated and reported in two ways: 1. The required NVA is: 19.6 cm at a 95% confidence level, derived according to NSSDA, i.e., based on RMSE of 10 cm in non-vegetated land cover classes. This is a required accuracy. For the Ottawa County UTM z15 AOI, the NVA was tested with 18 checkpoints located in non-vegetated areas across the UTM z15 project area. 2. Vegetated Vertical Accuracy (VVA): VVA shall be reported for vegetated land cover classes. The target VVA is: 30 cm at the 95th percentile, derived according to ASPRS Guidelines, Vertical Accuracy Reporting for Lidar Data, i.e., based on the 95th percentile error in all vegetated land cover classes combined. This is a target accuracy. For the Ottawa County UTM z15 AOI, the VVA was tested with 35 checkpoints located in vegetated areas across the UTM z15 project area. The checkpoints were distributed throughout the project area and were surveyed using GPS techniques. See survey report for additional survey methodologies. AccuracyZ has been tested to meet 19.6 cm or better Non-Vegetated Vertical Accuracy at 95% confidence level using RMSE(z) x 1.9600 as defined by the National Standards for Spatial Data Accuracy (NSSDA); assessed and reported using National Digital Elevation Program (NDEP)/ASRPS Guidelines. 0.080 Accuracy testing was performed on a per-UTM zone basis. For the Ottawa County UTM z15 AOI, the data tested 0.080 meters NVA at a 95% confidence level using RMSE(z) 0.041 x 1.9600 as defined by the National Standards for Spatial Data Accuracy (NSSDA). The NVA of the DEM was calculated using 18 independent checkpoints located in non-vegetated land cover categories across the UTM z15 project area. 0.230 Accuracy testing was performed on a per-UTM zone basis. For the Ottawa County UTM z15 AOI, the data tested 0.230 meters VVA was calculated using 35 checkpoints located in vegetated land cover categories at the 95th percentile, derived according to ASPRS Guidelines, Vertical Accuracy Reporting for Lidar Data. Tested against the DEM across the UTM z15 project areas. Woolpert 20191115 Lidar point cloud Dayton, OH Woolpert Digital data 20190225 20190306 ground condition OK Panhandle 2018 D18 - Lidar Point Cloud Data This dataset includes airborne lidar data point cloud data acquired as part of this task order. This data was used to create the required derivative lidar products. Woolpert 20191115 Vector digital data and tabular digital data Dayton, OH Woolpert Digital data 20181023 20181108 ground condition OK Panhandle 2018 D18 - Surveyed Control Points This dataset includes ground control and QA/QC checkpoints collected as part of this task order. These points were used in the calibration and accuracy testing of the lidar point cloud and DEM data. Woolpert 20191115 Vector digital data Dayton, OH Woolpert Digital data 20191115 ground condition OK Panhandle 2018 D18 - Breaklines This dataset includes hydro breaklines collected as part of this task order. Woolpert 20191115 Vector digital data Dayton, OH Woolpert Digital data 20191115 ground condition OK Panhandle 2018 D18 - Data Extent The data extent was created in shapefile format. The shapefile was buffered by 100-meters. It was used in acquisition planning and to clip the final deliverable data. Woolpert 20191115 Vector digital data Dayton, OH Woolpert Digital data 20191115 ground condition OK Panhandle 2018 D18 - Tile Index The tile index was created in shapefile format. Tiles have a size of 1,500-meters x 1,500-meters. Tile names were derived from the US National Grid. This index was used to create the tiled deliverables for this project. Hydro-Flattened Digital Elevation Models (DEMs): Class 2 (ground) lidar points in conjunction with the hydro breaklines and bridge breaklines were used to create a 1-meter hydro-flattened bare-earth raster DEM. Using automated scripting routines within ArcMap, a GeoTIFF file was created for each tile. Each surface is reviewed using Global Mapper to check for any surface anomalies or incorrect elevations found within the surface. OK Panhandle 2018 D18 - Lidar Point Cloud Data OK Panhandle 2018 D18 - Surveyed Control Points OK Panhandle 2018 D18 - Breaklines OK Panhandle 2018 D18 - Data Extent OK Panhandle 2018 D18 - Tile Index 20191115 Raster Pixel 1500 1500 Universal Transverse Mercator 15 0.9996 -93.0 0.0 500000.0 0.0 row and column 1 1 meters North American Datum of 1983 (2011) Geodetic Reference System 1980 6378137.0 298.257222101 North American Vertical Datum of 1988 0.01 meters Explicit elevation coordinate included with horizontal coordinates 20200421 Woolpert mailing and physical

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