Surdex Corporation Unpublished Material Unknown IL_Counties_LiDAR_Project vector data This project involved fixed wing aerial LIDAR data collected at a contracted point spacing of 1.0 meters for the Illinois Counties of Perry, Franklin and Jackson totaling approximately 1,745 square miles. To acquire detailed surface elevation data for the Illinois Height Modernization Program (ILHMP) which is managed by the Illinois State Geological Survey (ISGS). LiDAR Sensor Leica ALS70-HP USGS Base Lidar Specification 1.0 4 pulses 0.95 meters 1.0 ppsm 3021 meters 150 knots 28.2 degrees 53.4 Hz 185 kHz 10 ns 3 meters 1064 nm 1 = yes 0.22 MRAD 2128 meters 30 % NAD_1983_2011_Stateplane_Illinois_West_FIPS_1202_Ft_US National Geodetic Survey (NGS) Geoid12a 2.0 feet 0.726 feet 0.220 feet 0.287 feet Brush 0.318 feet Hard Surface 0.220 feet Short Grass 0.181 feet Trees/Forested 0.413 feet Tall Grass 0.254 feet 1.2 Swath overage 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 20140417 20140418 20140419 20140420 ground condition Complete Unknown -89.906352 -88.892941 37.505584 38.280166 2430000.000000 2605000.000000 320000.000000 575000.000000 LiDAR Digital Elevation Data State Illinois County Jackson 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 20141208 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 All files load in their correct geographic position and conform to the USGS LiDAR Base Specifications Version 1.0. LiDAR points have been classified to either unclassified, ground, vegetation, buildings, low points, noise, key-point or water class. 2 ft RMSE The LAS Data must meet a Fundamental Vertical Accuracy (FVA) equal to or less than 0.410 feet (12.5cm ) RMSEz. 0.203 feet RMSE USGS Quality Level 3 or better Acquisition was completed in mid April 2014 using a twin engine Cessna 335 equipped with a Leica ALS70HP. Flight plan parameters were based on 9500 feet AGL, 40 deg FOV, 185,000 pulse rate, 30% sidelap, 0.95 meter NPS. Crews based out of three airports; KMDH IN Carbondale, KPJB in Pinckneyville and H96 in Benton and worked multiple shifts per day to capture the data in a tight window due to emerging vegetation and concerns around flooding late in the Spring of 2014. 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 Tim Bohn, CP, PMP Director of Project Management mailing and physical address
520 Spirit of St. Louis Blvd
Chesterfield Missouri 63005 636-368-4456 (636) 368-4457 timb@surdex.com Raster coordinate pair 0.001 0.001 feet State Plane Coordinate System 1983 1202 0.99994118 -90.1666667 36.6666666 2296583.333 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 1 feet Explicit elevation coordinate included with horizontal coordinates 25000395 Feature Geometry ESRI FID Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. Shape Feature geometry. ESRI Coordinates defining the features. TILE_NAME Name of tile n/a Name of tile 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 20141208 Surdex Corporation Tim Bohn, CP, PMP Director of Project Management mailing and physical address
520 Spirit of St. Louis Blvd
Chesterfield Missouri 63005 636-368-4456 (636) 368-4457 timb@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