gov.noaa.nmfs.inport:79263 eng UTF8 dataset Elevation National Geodetic Survey 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 2026-03-04T19:17:17 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::6344 2023-2024 NOAA NGS Topobathy Lidar DEM: Ozarks area (Missouri, Arkansas and Oklahoma Rivers) 2026 creation publication NOAA/NMFS/EDM 79263 https://www.fisheries.noaa.gov/inport/item/79263 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information National Geodetic Survey 1315 East-West Hwy Silver Spring MD 20910 https://geodesy.noaa.gov/ WWW:LINK-1.0-http--link National Geodetic Survey Website Website listed for National Geodetic Survey information originator https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/13981/supplemental/MO2301_NOAA_Ozarks_Topobathy_Final_Report.pdf WWW:LINK-1.0-http--link Topobathy Lidar Data Report Topobathy Lidar Data Report download In July 2023, NV5 was contracted by the National Oceanic and Atmospheric Administration (NOAA) to collect topobathymetric Light Detection and Ranging (lidar) data from August 2023 to July 2024 for the NOAA Ozarks site. The NOAA Ozarks area of interest encompasses several river sections in Missouri, Arkansas, and Oklahoma. In total, the base project area of the NOAA Ozarks project encompasses approximately 745 square statute miles. The final classified lidar data were transformed from ellipsoid (GRS80) to geoidal height (Geoid18) and used to create topobathymetric DEMs in Cloud Optimized GeoTIFF format with 1m pixel resolution. This lidar data was required by National Oceanic and Atmospheric Administration (NOAA) and the National Geodetic Survey (NGS), Remote Sensing Division Coastal Mapping Program (CMP) to support national shoreline characterization along 29 river stretches in Missouri, Arkansas, and Oklahoma. Additionally, data will be utilized to enable accurate and consistent hydrologic flood and weather monitoring in support of the National Water Center's modeling efforts. We request that you credit the National Oceanic and Atmospheric Administration (NOAA) when you use these data in a report, publication, or presentation. 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 custodian notPlanned https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/13981/supplemental/extent_OzarksTopobathy_m13981.kmz This graphic shows the lidar footprint for this dataset. kmz EARTH SCIENCE > BIOSPHERE > ECOSYSTEMS > FRESHWATER ECOSYSTEMS > RIVERS/STREAM EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > TOPOGRAPHICAL RELIEF MAPS theme Global Change Master Directory (GCMD) Science Keywords 17.0 EARTH SCIENCE SERVICES > MODELS > DIGITAL ELEVATION/DIGITAL TERRAIN MODELS service Global Change Master Directory (GCMD) Service Keywords 17.0 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ARKANSAS CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > MISSOURI CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OKLAHOMA place Global Change Master Directory (GCMD) Location Keywords 20.8 LIDAR > Light Detection and Ranging instrument Global Change Master Directory (GCMD) Instrument Keywords 17.2 Airplane > Airplane platform Global Change Master Directory (GCMD) Platform Keywords 17.2 DOC/NOAA/NOS/NGS > National Geodetic Survey, National Ocean Service, NOAA, U.S. Department of Commerce dataCentre Global Change Master Directory (GCMD) Data Center Keywords 2017-04-24 publication 8.5 Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA) https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords GCMD Keyword Forum Page Global Change Master Directory (GCMD). 2025. GCMD Keywords, Version 22. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords information custodian NGS Lidar project InPort otherRestrictions Cite As: National Geodetic Survey, [Date of Access]: 2023-2024 NOAA NGS Topobathy Lidar DEM: Ozarks area (Missouri, Arkansas and Oklahoma Rivers) [Data Date Range], https://www.fisheries.noaa.gov/inport/item/79263. 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. license These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0). SPDX License: Creative Commons Zero v1.0 Universal (CC0-1.0) 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. Data set is not for use in litigation. otherRestrictions Distribution Liability: Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the National Geodetic Survey, the Office for Coastal Management, or its partners. unclassified 2023-2024 NOAA NGS Topobathy Lidar: Ozarks area (Missouri, Arkansas and Oklahoma Rivers) NOAA/NMFS/EDM 79259 crossReference NOAA Data Management Plan (DMP) NOAA/NMFS/EDM 79263 https://www.fisheries.noaa.gov/inportserve/waf/noaa/nos/ngs/dmp/pdf/79263.pdf WWW:LINK-1.0-http--link NOAA Data Management Plan (DMP) NOAA Data Management Plan for this record on InPort. information crossReference eng; US elevation OS Independent Block04_S -93.56 -93.42 36.61 36.84 | Currentness: Ground Condition 2023-08-14 2024-09-02 Block02_ E -94.04 -93.77 38.32 38.57 | Currentness: Ground Condition 2023-09-08 2023-09-18 Block02_ F -91.49 -90.73 36.39 37.19 | Currentness: Ground Condition 2023-09-08 2023-09-25 Block02_ G -90.82 -90.31 36.72 37.36 | Currentness: Ground Condition 2023-10-02 2023-10-09 Block02_H -90.53 -90.2 36.81 37.22 | Currentness: Ground Condition 2023-10-09 2023-10-11 Block03_I -92.62 -91.94 38.18 38.6 | Currentness: Ground Condition 2023-09-13 2023-09-27 Block03_L -92.74 -92.347 38.87 39.13 | Currentness: Ground Condition 2023-09-12 2023-09-17 Block04_J -92.48 -91.54 37.72 38.68 | Currentness: Ground Condition 2023-09-10 2024-09-04 Block01_A -93.66 -93.56 36.38 36.49 | Currentness: Ground Condition 2023-08-19 2023-08-21 Block01_B -92.79 -92.4 35.97 36.17 | Currentness: Ground Condition 2023-08-21 2023-08-29 Block01_ C -91.52 -91.06 36.14 36.39 | Currentness: Ground Condition 2023-09-25 2023-10-02 Block01_ D -93.94 -93.71 37.83 38.02 | Currentness: Ground Condition 2023-08-28 2023-09-08 Block04_K -91.39 -90.32 37.95 38.57 | Currentness: Ground Condition 2023-10-02 2024-07-24 Block04_M -93.69 -93.22 34.85 34.96 | Currentness: Ground Condition 2023-11-24 2024-08-04 Block04_N -93.89 -93.58 35.36 35.48 | Currentness: Ground Condition 2023-12-08 2023-12-10 Block04_O -93.44 -92.38 34.81 35.25 | Currentness: Ground Condition 2023-10-24 2024-09-03 Block04_P -94.95 -94.54 35.78 36.17 | Currentness: Ground Condition 2024-07-11 2024-08-30 Block04_Q -96.25 -94.98 35.37 36.18 | Currentness: Ground Condition 2023-12-13 2024-12-06 Block04_R -94.11 -93.42 35.48 35.85 | Currentness: Ground Condition 2024-08-13 2024-08-28 The NOAA Ozarks Topbathymetric Lidar data includes all lidar returns within the project's buffered boundary. An automated grounding classification algorithm was used to determine bare earth and submerged topography point classification. The automated grounding was followed with manual editing. Classes 2 (ground), 40 (submerged topography), and 43 (submerged object) were used to create the final DEMs. The full workflow used for this project is documented in the NOAA Ozarks Topobathymetric Lidar final report. ZIP Zip LAS/LAZ - LASer LAZ 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=13982 WWW:LINK-1.0-http--link Customized Download Create custom data files by choosing data area, product type, map projection, file format, datum, etc. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/dem/NGS_Ozarks_Topobathy_2023_13982/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. download dataset Accuracy HORIZONTAL ACCURACY - Lidar horizontal accuracy is a function of Global Navigation Satellite System (GNSS) derived positional error, flying altitude, and INS derived attitude error. VERTICAL ACCURACY - Absolute accuracy was assessed using Non-Vegetated Vertical Accuracy (NVA) survey methods. Survey check points were evenly distributed as feasible throughout the project area. NVA compares known ground check point data that were withheld from the calibration and post-processing of the lidar point cloud to the triangulated surface generated by the ground classified lidar point cloud. Project specifications require NVA meet 0.196 m accuracy at the 95% confidence interval. Submerged topography points were tested separately and usually occurred in depths up to 1m. Project specifications require submerged topography shall meet a vertical RMSE of QL2b specified in the Draft National Coastal Mapping strategy 1.0 which is equivalent to 0.30 m RMSE at a depth of 1 m. Analytical Accuracy HORIZONTAL ACCURACY - The obtained RMSEr value is multiplied by a conversion factor of 1.7308 to yield the horizontal component of the National Standards for Spatial Data Accuracy (NSSDA) reporting standard where a theoretical point will fall within the obtained radius 95 percent of the time (ACCr) . VERTICAL ACCURACY - Non-Vegetated Vertical Accuracy (NVA) is a measure of the accuracy of lidar point data in open areas (classified LAS) with level slope (less than 20 degrees) where the lidar system has a high probability of measuring the ground surface and is evaluated at the 95% confidence interval (1.96*RMSEz). Horizontal Positional Accuracy Blocks A, B, D, E, F, G, H, J, K, M, N, Q, and S - RMSEr is 0.026 meters, with a ACCr of 0.045 meters at the 95% confidence level Block C- RMSEr is 0.013 meters, with a ACCr of 0.023 meters at the 95% confidence level. Blocks I, L, and O- RMSEr is 0.025 meters, with a ACCr of 0.044 meters at the 95% confidence level. Block P- RMSEr is 0.038 meters, with a ACCr of 0.066 meters at the 95% confidence level. Block R- RMSEr is 0.025-0.038 meters, with an ACCr of 0.044-0.065 meters at the 95% confidence level. Vertical Positional Accuracy The cumulative NVA, as compared to the Bare Earth DEM for blocks A-S is 0.034 m RMSE and 0.068 m 95% CL using 56 check points. The cumulative VVA, as compared to the Bare Earth DEM for blocks A-S is 0.116 m RMSE and 0.205 m 95% CL using 44 check points. Please refer to the NOAA Ozarks Topobathymetric Lidar final data report for NVA and VVA accuracy assessment results for each block. Completeness Measure The Bare Earth Model rasters are clipped to the extent of the project boundary and were named according to project specifications. This shapefile was additionally used to clip and exclude interpolated elevation data from the topobathymetric bare earth model. Data for the NOAA Ozarks Topbathymetric Lidar Delivery 1 Block A area was acquired by NV5 Geospatial (NV5) using a Leica Chiroptera Hawkeye 4X topobathymetric lidar system. All derived Ellipsoidal height LAS data is referenced to: Horizontal Datum-NAD83(2011) epoch: 2010.00 Projection-UTM Zone 15N Horizontal Units-meters Vertical Datums-GRS80 Ellipsoid Vertical Units-meters NOAA provided NV5 Geospatial with a project boundary for the NOAA Ozarks Topobathymetric Lidar project. Using a 25 meter buffered boundary, NV5 created an airborne lidar acquisition plan. The collected lidar data were immediately processed in the field by NV5 to a level that will allow QA\QC measures to determine if the sensor is functioning properly and assess the coverage of submerged topography. An initial SBET was created using Waypoint Inertial Explorer 8.90, and the raw data were extracted into geo-referenced LAS files using Lidar Survey Studio 3.0 with pre-calculated scanner misalignment angles determined through a boresight protocol. These files were inspected for errors and then passed through an automated workflow, producing rasters to develop an initial assessment of bathymetric coverage. NV5 reviewed all acquired flight lines to ensure complete coverage and positional accuracy of the laser points. These rasters were also used to create an initial product in Quick Look Coverage Maps. These Quick Look files are not fully processed data or final products but provide rapid assessment of approximate coverage and depth penetration. 2024-02-07T00:00:00 National Geodetic Survey processor NV5 resolved kinematic corrections for aircraft position data using aircraft GNSS and Applanix's proprietary PP-RTX solution. When PP-RTX was not used NV5 conducted static Global Navigation Satellite System (GNSS) ground surveys (1 Hz recording frequency) using base stations over known monument locations during flights. After the airborne survey, static GPS data were triangulated with nearby Continuously Operating Reference Stations (CORS) using the Online Positioning User Service (OPUS) for precise positioning. Multiple independent sessions over the same base station were performed to confirm antenna height measurements and to refine position accuracy. This data was used to correct the continuous on board measurements of the aircraft position recorded throughout the flight. A final smoothed best estimate trajectory (SBET) was developed that blends post-processed aircraft position with attitude data. Using the SBETs, sensor head position and attitude were then calculated throughout the survey. Trimble Business Center v.3.90, Blue Marble Geographic Calculator 2019, and PosPac MMS 8.3 SP3 were used for these processes. Following the final SBET creation, NV5 used Leica Lidar Survey Studio (LSS) to calculate laser point positioning by associating SBET positions to each laser point return time, scan angle, and intensity. Leica LSS was used to derive a synthetic water surface to create a water surface model. Light travels at different speeds in air versus water and its direction of travel or angle is changed or refracted when entering the water column. The refraction tool corrects for this difference by adjusting the depth (distance traveled) and horizontal positioning (change of angle/direction) of the lidar data. All lidar data below water surface models were classified as water column to correct for refraction. Using raster-based QC methods, the output data is verified to ensure the refraction tool functioned properly. 2024-02-07T00:00:00 National Geodetic Survey processor Once all data was refracted by flight line, the data was exported to LAS 1.4 format and combined into 500 m x 500 m tiles. Data were then further calibrated using TerraMatch. NV5 used custom algorithms in TerraScan to classify the initial ground/submerged topography surface points. Relative accuracy of overlapping swaths was compared and verified through the use Delta-Z (DZ) orthos created using NV5's Las Product Creator. Absolute vertical accuracy of the calibrated data was assessed using ground survey data and complete coverage was again verified. 2024-11-15T00:00:00 National Geodetic Survey processor Post automated classification NV5 then performed manual editing to review all classification and improve the final topobathymetric surface. NV5's LasMonkey was used to update LAS header information, including all projection and coordinate reference system information. The final lidar data are in LAS format 1.4 and point data record format 6. The final classification scheme is as follows: 1 - Unclassified 1 Withheld - Edge clip 1 Overlap Withheld - Unrefracted green data from Chiroptera sensor 2 - Ground 7 Withheld -Low noise 17 - Bridge Decks 18 Withheld - High noise 21 - Identifiable snow 22 - Temporal exclusion 40 - Bathymetric bottom or submerged topography 41 - Water surface 42 Synthetic- Chiroptera synthetic water surface 43 - Submerged feature 45 - Water column 64 - Submerged Aquatic Vegetation (SAV) 65 - overlap bathy bottom - temporally different from a separate lift 2024-02-07T00:00:00 National Geodetic Survey processor NV5 transformed the final lidar data from ellipsoid heights to orthometric heights referenced to NAVD88, Geoid 18 to create the final topobathymetric void clipped DEMs. The topobathymetric bare earth DEMs were output at 1 meter resolution in GeoTIFF format into 5000 m x 5000 m tiles. The raster DEMs are clipped to the extent of the project boundary and named according to project specifications. A bathymetric void shapefile was created to indicate areas where there was a lack of bathymetric returns. This shape was created by triangulating bathymetric bottom points with an edge length maximum of 4.56m to identify all areas greater then 9 square meters without bathymetric returns. This shapefile was used to clip and exclude interpolated elevation data from these areas in the bathymetric void clipped topobathymetric bare earth model. 2024-02-07T00:00:00 Acquisition and Processing NV5 originator