gov.noaa.nmfs.inport:72439 eng UTF8 dataset Elevation OCM Partners resourceProvider NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact 2026-04-30T00:00:00 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::6319 2017 ISGS Lidar: Cass County, IL il2017_cass_m10111_metadata 2017 creation 2017-09-17 publication NOAA/NMFS/EDM 72439 https://www.fisheries.noaa.gov/inport/item/72439 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/entwine/geoid18/10111/ept.json WWW:LINK-1.0-http--link Entwine Point Tile (EPT) Entwine Point Tile (EPT) is a simple and flexible octree-based storage format for point cloud data. The data is organized in such a way that the data can be reasonably streamed over the internet, pulling only the points you need. EPT files can be queried to return a subset of the points that give you a representation of the area. As you zoom further in, you are requesting higher and higher densities. A dataset in EPT will contain a lot of files, however, the ept.json file describes all the rest. The EPT file can be used in Potree and QGIS to view the point cloud. download https://prd-tnm.s3.amazonaws.com/StagedProducts/Elevation/metadata/IL_CassCounty_2017_C18/USGS_IL_CassCounty_2017_C18_Project_Report.pdf WWW:LINK-1.0-http--link USGS Project Report Link to the USGS Project Report that provides information about the project, vertical accuracy results, and the point classes and sensors used. download https://prd-tnm.s3.amazonaws.com/index.html?prefix=StagedProducts/Elevation/metadata/IL_CassCounty_2017_C18/IL_CassCounty_2017/ WWW:LINK-1.0-http--link USGS Additional Info Link to the reports, breaklines, metadata, and spatial metadata. download https://coast.noaa.gov/lidar/viewer/v/noaapotree.html?r=https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/entwine/geoid18/10111/ept.json WWW:LINK-1.0-http--link 3D Viewer Link to view the point cloud, using the Entwine Point Tile (EPT) format, in the 3D Potree viewer. download https://coast.noaa.gov/dataviewer/ WWW:LINK-1.0-http--link NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) The Data Access Viewer (DAV) allows a user to search for and download elevation, imagery, and land cover data for the coastal U.S. and its territories. The data, hosted by the NOAA Office for Coastal Management, can be customized and requested for free download through a checkout interface. An email provides a link to the customized data, while the original data set is available through a link within the viewer. download This project involved fixed wing aerial LIDAR data collected at a contracted point spacing of 0.70 meters for the Illinois County of Cass totaling approximately 424 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). Created by Surdex Corporation through Contract with the University of Illinois completed NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information pointOfContact NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information custodian unknown EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION theme Global Change Master Directory (GCMD) Science Keywords 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ILLINOIS VERTICAL LOCATION > LAND SURFACE place Global Change Master Directory (GCMD) Location Keywords 23.3 LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 23.3 Airplane > Airplane platform Global Change Master Directory (GCMD) Platform Keywords 23.3 Lidar - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2017 ISGS Lidar: Cass County, IL [Data Date Range], https://www.fisheries.noaa.gov/inport/item/72439. NOAA provides no warranty, nor accepts any liability occurring from any incomplete, incorrect, or misleading data, or from any incorrect, incomplete, or misleading use of the data. It is the responsibility of the user to determine whether or not the data is suitable for the intended purpose. otherRestrictions Access Constraints: None otherRestrictions Use Constraints: 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. otherRestrictions Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners. unclassified vector eng; US elevation Microsoft Windows 7.0 Service Pack 1; ESRI ArcCatalog 9.3.0.1770 -90.589278 -89.9899592 39.867818 40.1319801 | Currentness: Ground Condition 2017-03-21 | Currentness: Ground Condition 2017-03-22 | Currentness: Ground Condition 2017-11-30 LiDAR The following are the USGS lidar fields in JSON: { "ldrinfo" : { "ldrspec" : "1.2", "ldrsens" : "Optech Galaxy", "ldrmaxnr" : "4", "ldrnps" : "0.67", "ldrdens" : "2.20", "ldranps" : "0.67", "ldradens" : "2.20", "ldrfltht" : "1847", "ldrfltsp" : "150", "ldrscana" : "45", "ldrscanr" : "49", "ldrpulsr" : "250", "ldrpulsd" : "10", "ldrpulsw" : "3", "ldrwavel" : "1064", "ldrmpia" : "1", "ldrbmdiv" : "0.22", "ldrswatw" : "1535", "ldrswato" : "20", "ldrgeoid" : "National Geodetic Survey (NGS) Geoid12B. The GEOID12B 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.", "ldrcrs" : "NAD_1983_2011_Stateplane_Illinois_West_FIPS_1202_Ft_US" }, "ldraccur" : { "ldrchacc" : "0.328 feet RMSEz", "rawnva" : "0.122 feet RMSEz, 0.239 feet 95% CL bare earth, short grass", "rawnvan" : "36", "clsnva" : "0.132 feet RMSEz, 0.259 feet 95% CL bare earth, short grass", "clsnvan" : "27", "clsvva" : "0.403 feet 95th Percentile, Tall Grass, Trees/Forested, Brush", "clsvvan" : "17" }, "lasinfo" : { "lasver" : "1.4", "lasprf" : "6", "laswheld" : "11", "lasolap" : "17", "lasintr" : "11", "lasclass" : { "clascode" : "1", "clasitem" : "Unclassified" }, "lasclass" : { "clascode" : "2", "clasitem" : "Ground" }, "lasclass" : { "clascode" : "3", "clasitem" : "Low vegetation" }, "lasclass" : { "clascode" : "4", "clasitem" : "Medium vegetation" }, "lasclass" : { "clascode" : "5", "clasitem" : "High vegetation" }, "lasclass" : { "clascode" : "6", "clasitem" : "All structures except bridges" }, "lasclass" : { "clascode" : "7", "clasitem" : "Low noise" }, "lasclass" : { "clascode" : "9", "clasitem" : "Water" }, "lasclass" : { "clascode" : "10", "clasitem" : "Proximity to breaklines" }, "lasclass" : { "clascode" : "17", "clasitem" : "Bridge decks" }, "lasclass" : { "clascode" : "18", "clasitem" : "High noise" } }} false eng false ASPRS Zip LAS/LAZ - LASer Zip NOAA Office for Coastal Management (843) 740-1202 2234 South Hobson Ave Charleston SC 29405-2413 coastal.info@noaa.gov https://coast.noaa.gov WWW:LINK-1.0-http--link NOAA Office for Coastal Management Website NOAA Office for Coastal Management Home Page information distributor https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10111/details/10111 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. Change to an orthometric vertical datum is one of the many options. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/10111/index.html WWW:LINK-1.0-http--link Bulk Download Bulk download of data files in LAZ format, geographic NAD83 (2011) coordinates and elevations in NAVD88 (GEOID18) meters. download dataset Horizontal Positional Accuracy 2 ft (0.61 m) RMSE Vertical Positional Accuracy The LAS Data must meet a Non-Vegetated Vertical Accuracy (NVA) equal to or less than 0.328 feet (10cm ) RMSEz and Vegetated Vertical Accuracy (VVA) equal to or less than 29.4cm at the 95th percentile. USGS Determined Vertical Accuracy: NVA = 3.39 cm RMSE VVA = 9.53 cm at 95th Percentile For more information see the USGS project report. The link to this report is provided in the URL section of this metadata record. Completeness Report All 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 Conceptual Consistency This total point cloud classified LAS Data was created from the final controled swath data. This data was collected by Surdex Corporation for the Illinois Height Modernization Program (ILHMP) which is managed by the Illinois State Geological Survey (ISGS). The data were made available for download by USGS. The NOAA Office for Coastal Management (OCM) downloaded and processed the data to make the data available for custom download from the NOAA OCM Digital Coast Data Access Viewer (DAV) and for bulk download from AWS S3. Acquisition was completed in March and November 2017 using a single engine Cessna 206 equipped with an Optech Galaxy. Flight plan parameters were based on 6060 feet AGL, 45 deg FOV, 250,400 pulse rate, 20% sidelap, 0.67 meter NPS. Crews based out of Jacksonville Muncipal Airport, Illinois. Due to it's location near the Illinois River, the Northwest portion of the County had large amounts of backwater with associated ponds, sloughs and swales. 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 30 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 V1.2 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. Please NOTE: A lone reflight occurred in late November, 8 months after the original collection that had water levels that were significantly lower, approximately 2.5 feet, causing some visual elevation mismatches between the original dataset and the reflight. These small areas were desiginated as "Unclassified" and were coded as Class I to reflect this anomaly. The Office for Coastal Management (OCM) downloaded 2954 laz files from the USGS rockyweb site for the Cass County IL dataset. The data were in IL State Plane West, NAD83 2011, US survey feet coordinates and NAVD88 (Geoid12B) elevations in feet. The points were classified as 1- Unclassified, 2 - Ground, 3 - Low Vegetation, 4 - Medium Vegetation, 5 - High Vegetation, 6 - Buildings, 9 - Water, 10 - Ignored Ground, 17 - Bridge Deck. All points were processed to the NOAA Digital Coast Data Access Viewer (DAV) for data provisioning. The classes available on DAV are: 1,2,3,4,5,6,9,10,17. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. Internal OCM scripts were run to check the number of points by classification and by flight ID and the gps, elevation, and intensity ranges. 2. Internal OCM scripts were run on the laz files to: a. Convert from orthometric (NAVD88) elevations in feet to NAD83 (2011) ellipsoid elevations in meters using the Geoid12B model b. Convert the laz files from IL State Plane West, NAD83 2011, US survey feet coordinates to geographic coordinates c. Assign the geokeys, sort the data by gps time and zip the data to database 2024-06-19T00:00:00 Office for Coastal Management processor USGS LAZ Download USGS https://rockyweb.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/IL_CassCounty_2017_C18/IL_CassCounty_2017/LAZ/ WWW:LINK-1.0-http--link USGS rockyweb download site Source Citation URL information publisher