Surdex Corporation Unpublished Material Unknown Bond_Clinton_Washington_TPC_LAS vector data This project involved fixed wing aerial LIDAR data collected at a contracted point spacing of 0.89 meters for the Illinois Counties of Bond, Clinton and Washington totaling approximately 1,617 square miles. This classified LAS Data was created from the final controled swath data. To acquire detailed surface elevation data for the Illinois Height Modernization Program (ILHMP) which is managed by the Illinois State Geological Survey (ISGS). LiDAR Leica ALS70-HP 1.0 4 0.89 1.18 0.89 1.18 2777 150 40 53.4 198 10 3 1064 1 0.22 2021 20 NAD_1983_2011_Stateplane_Illinois_West_FIPS_1202_Ft_US National Geodetic Survey (NGS) Geoid12A. The GEOID12A model is intended to transform between NAD 83 (2011/PA11/MA11) and the respective vertical datums for the different regions, including NAVD88, GUVD04, ASVD02, NMVD03, PRVD02 and VIVD09. 0.410 feet RMSEz 0.249 feet RMSEz, 0.488 feet 95% CL 35 0.205 feet RMSEz, 0.401 feet 95% CL hard surface; 0.263 feet RMSEz, 0.515 feet 95% CL short grass 50 0.788 feet 95th Percentile, hard surface, Short Grass, Tall Grass, Trees/Forested, Brush 124 1.2 Swath coverage points were identified by adding 16 to the standard classification values. Withheld (ignore) points were identified in these files using the standard LAS Withheld bit. 11 6 1 Unclassified 2 Ground 3 Low vegetation 4 Medium vegetation 5 High vegetation 6 All structures except bridges 7 All noise 8 Keypoint 9 Water 10 Proximity to hydro breakline 17 Overlap unclassified 18 Overlap Ground 19 Overlap Low vegetation 20 Overlap Medium vegetation 21 Overlap High vegetation 22 Overlap All structures except bridges 23 Overlap All noise 24 Overlap Keypoint 25 Overlap Water 26 Overlap proximity to hydro breakline 20150101 20150102 20150110 20150113 20150115 20150116 20150117 20150119 20150120 20150315 ground condition Complete Unknown -89.71976374 -89.11606470 38.20009327 39.04131154 2425000.00 2595000.00 560000.00 865000.00 LiDAR Digital Elevation Data State Illinois County Bond_Clinton_Washington unknown unknown Illinois State Geological Survey Sheena K Beaverson Program Manager, Illinois Height Modernization mailing address
Prairie Research Institute, Univ of IL Urbana-Champaign
615 East Peabody Drive
Champaign IL 61820 (217) 244-9306 sbeavers@illinois.edu Created by Surdex Corporation through Contract with the University of Illinois none Unclassified none Microsoft Windows 7.0 Service Pack 1; ESRI ArcCatalog 9.3.0.1770 ILHMP 20150908 Unknown Illinois LiDAR raster digital data All files are inspected to ensure that they conform to the specified file naming conventions. 0 See Surdex LiDAR Accuracy Report This total point cloud classified LAS Data was created from the final controled swath data. A small 11-acre area in tile 24400585 over the southwest portion of Washington County does not contain bare-earth classified points due to smoke that was present over the Marissa Coal Power Plant during the flight acquisition. All other files are inspected to ensure that they conform to the specified file naming conventions, all files load in their correct geographic position, all files conform to the project specifications for file standard and content 2 ft RMSE The LAS Data must meet a Fundamental Vertical Accuracy (FVA) equal to or less than 0.410 feet (12.5cm ) RMSEz. These vertical accuracies were tested using 124 independent survey check points in the following feature types: Hard Surface (26), Short Grass (24), Tall Grass (26), Trees/Forrested (24) and Brush (24). 0.205 feet RMSEz, 0.401 feet 95% CL USGS Quality Level 3 or better Acquisition was completed in early February 2015 using a twin engine Cessna 335 equipped with a Leica ALS70HP. Flight plan parameters were based on 9100 feet AGL, 40 deg FOV, 198,600 pulse rate, 20% sidelap, 0.89 meter NPS. Crews based out of Greenville, Centralia, Pickneyville and Mid-America IL airports. All flights have calibration lines flown at beginning and end of flight perpendicular to lines captured during that mission. Base stations were continuously running during missions and placed so flight baseline never exceeds 25 miles. GPS-IMU captured during flight was processed using Waypoint's Inertial Explorer software. The bare-earth Lidar data was processed to USGS (NGP) Base Lidar Specifications V1.0 using the Terrasolid software suite. LiDAR point was initally processed with macros to locate bare earth ground, buildings and three classes of vegetation but was manually reviewed by experienced technicians in TerraScan or LP360 software for proper point classifciations in LAS tile format. Derivative product formats such as *.DAT, *.DGN, ESRI raster grid and TIN formats were produced using ESRI, Microstation and other software formats. Hydro features were collected on streams and rivers 100~ feet or wider and on lakes 2~ acres or larger. These lines were hydro flattened into the Lidar data and delivered in ESRI geodatabase file format. Unknown Surdex Corporation Wade Williams, CP Project Manager mailing and physical address
520 Spirit of St. Louis Blvd
Chesterfield Missouri 63005 636-368-4458 (636) 368-4459 wadew@surdex.com Raster coordinate pair 1 1 feet State Plane Coordinate System 1983 1202 0.9999411764705882 -90.16666666666667 36.6666666 2296583.333333333 0.000000 NAD_1983_2011_Stateplane_Illinois_West_FIPS_1202_Ft_US Geodetic Reference System 80 6378137.000000 298.257222 North American Vertical Datum of 1988,Geoid2012A 1 feet Explicit elevation coordinate included with horizontal coordinates This LiDAR project was contracted by ISGS. ASPRS The class field is defined as: Class 1 (Default/unclassified) Class 2 (Ground) Class 3 (Low Vegetation) Class 4 (Medium Vegetation) Class 5 (High Vegetation) Class 6 (Structures/Building) Class 7 (Noise) Class 9 (Water) Class 10 (Breakline Proximity) Class 17 Overlap (Default/unclassified) Class 18 Overlap (Ground) Class 19 Overlap (Low Vegetation) Class 20 Overlap (Medium Vegetation) Class 21 Overlap (High Vegetation) Class 22 Overlap (Structures/Building) Class 23 Overlap (Noise) Class 24 Overlap (Keypoint) Class 25 Overlap (Water) Class 26 Overlap ( Breakline Proximity) Illinois State Geological Survey Sheena K Beaverson Program Manager, Illinois Height Modernization mailing address
Prairie Research Institute, Univ of IL Urbana-Champaign
615 East Peabody Drive
Champaign IL 61820 (217) 244-9306 sbeavers@illinois.edu Downloadable Data unknown LAS 1.2 1.00 DVD ISO 9660 unknown 20150909 Surdex Corporation Wade Williams, CP Project Managert mailing and physical address
520 Spirit of St. Louis Blvd
Chesterfield Missouri 63005 636-368-4458 (636) 368-4459 wadew@surdex.com FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 local time http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile