73799 oh2022_lucas_dem_10203_metadata Data Set Published / External 49404 DEMs - partner (no harvest) Project Completed 2022 2022-12-01 Original Dataset: This task is for a high-resolution data set of lidar covering the entire Lucas County area (+/- 347.1 sq. mi). The lidar was collected and processed to meet a maximum Nominal Post Spacing (NPS) of 0.25 meter (16ppsm). Lidar data is a remotely sensed high resolution elevation data collected by a Leica CityMapper digital sensor active scanning (lidar) sensor. Lidar was collected between March 15, 2022, and March 21 2022 while no snow was on the ground, leaf-off and rivers were at or below normal levels. The lidar systems collect data point clouds that are used to produce highly detailed Digital Elevation Models (DEMs) of the earth's terrain, man-made structures, and vegetation. The data was developed based on a horizontal datum/projection of NAD 83(HARN) State Plane Ohio North FIPS 3401 and a vertical datum of NAVD88 in units of US Survey Feet. Lidar data was delivered as processed LAS version 1.4 files formatted to 6.647 individual 1,250' x 1,250' tiles. Lucas County, OH has a goal to develop and/or update their geospatial dataset for use by city agencies, other levels of government, academia, and the general public, and to provide these datasets for inclusion to OGRIP. OGRIP is a State of Ohio resource for geographic information technology users. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION Theme ISO 19115 Topic Category elevation Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA Spatial Global Change Master Directory (GCMD) Location Keywords CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OHIO Spatial Global Change Master Directory (GCMD) Location Keywords VERTICAL LOCATION > LAND SURFACE Instrument Global Change Master Directory (GCMD) Instrument Keywords LIDAR > Light Detection and Ranging Platform Global Change Master Directory (GCMD) Platform Keywords Airplane > Airplane Office for Coastal Management Charleston SC Data Set Elevation As Needed Model (digital) 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. Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners. State of Ohio Office of Information Technology, Ohio Geographically Referenced Information Program Data Steward 2024 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Distributor 2024 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Metadata Contact 2024 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Point of Contact 2024 Organization NOAA Office for Coastal Management NOAA/OCM coastal.info@noaa.gov 2234 South Hobson Ave Charleston SC 29405-2413 (843) 740-1202 https://coast.noaa.gov NOAA Office for Coastal Management Home Page Online Resource Ground Condition -83.891411 -83.096134 41.744252 41.411624 Range 2022-03-15 2022-03-21 Yes No No No No Vertical EPSG:6360 NAVD88 height (ftUS) North American Vertical Datum 1988 1 Gravity-related height H US survey foot up Projected EPSG:3753 NAD83(HARN) / Ohio North (ftUS) NAD83(HARN) SPCS83 Ohio North zone (US survey foot) 1 easting X ftUS east 2 northing Y ftUS north Custom Unclassified Data is available online for bulk and custom downloads. This data set is in the public domain, and the recipient may not assert any proprietary rights thereto nor represent it to any one as other than a data set produced by Lucas County and the Ohio Statewide Imagery Program. 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. https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=10203/details/10203 2024 Organization NOAA Office for Coastal Management Customized Download Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base. Not Applicable Zip https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OH_Lucas_DEM_2022_10203/index.html 2024 Organization NOAA Office for Coastal Management Bulk Download Bulk download of data files in GeoTiff format, Ohio State Plane North NAD83(HARN), US survey feet coordinates and NAVD88 (Geoid03) elevations in feet. GeoTIFF Uncompressed https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/laz/geoid18/10185/supplemental/oh2022_lucas_m10185.kmz Browse Graphic Browse Graphic kmz This kmz shows the lidar coverage for the 2022 lidar acquisition for Lucas County, OH. https://coast.noaa.gov/dataviewer/ NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) Online Resource HTML 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. Version 6.2 (Build 9200) ; Esri ArcGIS 10.7 This data set was produced to meet ASPRS Positional Accuracy Standards for Digital Geospatial Data (2014) for a 0.106 m RMSEx / RMSEy Horizontal Accuracy Class which equates to Positional Horizontal Accuracy = +/- 0.260 m at a 95% confidence level. This dataset was produced to meet 0.343 feet vertical accuracy at a 95 percent confidence level, derived according to NSSDA guidelines, in open terrain using Rmsez 0.175 ft (5.3 cm) x 1.960. Tested against the ground classified lidar points. The lidar data is visually inspected for completeness to ensure that are no void areas or missing data. All formatted data cover the entire area specified for this project and are validated using a combination of commercial lidar processing software, GIS software, and proprietary programs to ensure proper formatting and loading prior to delivery. Yes Unknown Yes NCEI-NC Data is backed up to cloud storage. The NOAA Office for Coastal Management (OCM) downloaded the Lucas County, Ohio DEM data from the Ohio Geographically Referenced Information Program (OGRIP). NOAA OCM processed the data to make it available for custom downloads from the NOAA Digital Coast Data Access Viewer and for bulk downloads from AWS S3. Ohio Geographically Referenced Information Program (OGRIP) Lidar Organization OGRIP Publisher https://gis1.oit.ohio.gov/geodatadownload/ OGRIP Data Download 1 Using City Mapper lidar sensors to acquire high density data, at a nominal pulse spacing (NPS) of 0.25 meters, were collected for this task order in 3 total missions. Multiple returns were recorded for each laser pulse along with an intensity value for each return. The survey crews were on-site, operating a Global Navigation Satellite System (GNSS) Base Station for the airborne GPS support. 2022-12-01T00:00:00 2 The individual flight lines were inspected to ensure the systematic and residual errors have been identified and removed. Then, the flight lines were compared to adjacent flight lines for any mismatches to obtain a homogenous coverage throughout the project area. The point cloud underwent a classification process to determine bare-earth points and non-ground points utilizing "first and only" as well as "last of many" lidar returns. This process determined Default (Class 1), Bare-earth (Class 2), Low Vegetation (Class 3), Medium Vegetation (Class 4), High Vegetation (Class 5), Building (Class 6), Noise (Class 7), Overlap Default (Class 17), and Overlap Ground (Class 18). The bare-earth (Class 2 - Ground) lidar points underwent a manual QA/QC step to verify the quality of the DEM as well as a peer-based QC review. This included a review of the DEM surface to remove artifacts and ensure topographic quality. The overlap classes were determined by first identifying the overlapping areas and reclassifying the LAS data by offset from a corridor. This allows the returns located on the edge of the swath to be removed from the bare earth coverage in an effort to produce a more uniform data density. The returns determined to be overlap including overlap default and ground are then applied an overlap flag and reclassified to their respective standard classification value. The surveyed ground control points are used to make vertical adjustments to the data set and to perform the accuracy checks and statistical analysis of the lidar dataset. Supervisory QC monitoring of work in progress and completed editing ensured consistency of classification character and adherence to project requirements across the entire project area. The resulting deliverables for this task order consist of classified LAS file in LAS 1.2 format and 2.5 feet pixel size DEM files in Erdas IMG format. The method used to create the DEM consisted of isolating the ground (class 2) points and then outputting those points into a gridded format for additional QAQC to ensure DEM quality. Following QAQC process completion, a gridded raster file was created on a per tile basis. The task order projection information was applied to the final raster dataset. Prior to delivery, all raster files were visually reviewed to ensure coverage and reviewed using automated processes to ensure proper formatting. 2022-12-01T00:00:00 3 The NOAA Office for Coastal Management (OCM) downloaded the Lucas County, OH DEM data from the Ohio Geographically Referenced Information Program (OGRIP). The data were in Ohio State Plane North NAD83 HARN, US survey feet coordinates and in NAVD88 (Geoid03) elevations in feet and were at a 1 foot grid spacing. OCM copied the raster files to https for Digital Coast storage and provisioning purposes. 2024-11-08T00:00:00 Organization Office for Coastal Management OCM https://ror.org/05v14bq57 2234 South Hobson Avenue Charleston SC 29405-2413 https://www.coast.noaa.gov/ 73607 Data Set Cross Reference gov.noaa.nmfs.inport:73799 Rebecca Mataosky 2024-11-08T15:18:12 SysAdmin InPortAdmin 2026-03-04T19:17:17 2024-11-08 OCM Partners OCMP 1002 Public No No 2024-10-04 1 Year 2025-10-04