57763 2009_OLC_HoodtoCoast_DEM_8876 Data Set Published / External 49404 DEMs - partner (no harvest) Project Completed 2009 Watershed Sciences, Inc. (WS) collected Light Detection and Ranging (LiDAR) data for the Department of Geology and Mineral Industries (DOGAMI) and the Oregon Department of Forestry (ODF). The Areas of Interest (AOIs) cover portions of eight counties in northwest Oregon. The extent of requested LiDAR area totals ~1,549,015 acres; the extent of the LiDAR area delivered covers ~1,586,385 acres. The dataset encompasses portions of the following counties in northwest Oregon: Tillamook, Columbia, Multnomah, Washington, Marion, Yamhill, Hood River, and Clackamas. The bare earth digital elevation models (DEM) represent the earth's surface with all vegetation and human-made structures removed. The bare earth DEMs were derived from LiDAR data using TIN processing of the ground point returns. The DEM grid cell size is 3 international feet. The elevation units are in U.S. survey feet. Some elevation values have been interpolated across areas in the ground model where there is no elevation data (e.g. over water, over dense vegetation). The NOAA Office for Coastal Management (OCM) received 101 ADF DEM files from the Oregon Lidar Consortium. These files were processed to the Data Access Viewer (DAV) and https. In addition to bare earth digital elevation models, the lidar point data are available for download at the link in the Related Items section of this metadata record. Please note that these products have not been reviewed by OCM, and any conclusions drawn from the analysis of this information are not the responsibility of NOAA or OCM. Provide high resolution terrain elevation and land cover elevation data. Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY 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 > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION Theme Global Change Master Directory (GCMD) Science Keywords EARTH SCIENCE > SPECTRAL/ENGINEERING > LIDAR 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 > OREGON 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 Theme Global Change Master Directory (GCMD) Science Keywords DEM Theme Global Change Master Directory (GCMD) Science Keywords DTM Theme Global Change Master Directory (GCMD) Science Keywords Light Detection and Ranging Theme Global Change Master Directory (GCMD) Science Keywords digital terrain model Theme Global Change Master Directory (GCMD) Science Keywords elevation data Theme Global Change Master Directory (GCMD) Science Keywords high-resolution Theme DoGAMI Theme bare earth Theme bare ground Spatial Global Change Master Directory (GCMD) Location Keywords Pacific Northwest Spatial Global Change Master Directory (GCMD) Location Keywords U.S. Coastline Office for Coastal Management Charleston SC Data Set Elevation None Planned raster digital data Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners Oregon Lidar Commission, DoGAMI, Oregon Department of Forestry, Watershed Sciences, Inc. Data Steward 2019 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 2019 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 2019 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 2019 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 -124 -121 46 44.9 Range 2007-03 2009-04 Dates of lidar collection, see project report for specifics. 3 Foot Projected EPSG:2991 NAD83 / Oregon LCC (m) North American Datum 1983 GRS 1980 20925604.4741667 298.257222101 NAD83 Oregon Lambert (meters) Lambert Conic Conformal (2SP) Latitude of false origin 41° 45' 0" N Longitude of false origin 120° 30' 0" W Latitude of 1st standard parallel 43° 0' 0" N Longitude of 2nd standard parallel 45° 30' 0" N Easting at false origin 400000 metre Northing at false origin 0 metre 1 Easting X metre east 2 Northing Y metre north Unclassified Data is available online for custom downloads None 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=8876 2019 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. Zip Zip https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OLC_HoodtoCoast_2009_8876/index.html 2019 Organization NOAA Office for Coastal Management Bulk Download Bulk download of data files in the original coordinate system. GeoTIFF GeoTIFF https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8873/supplemental/extent_m8873.kmz Data set footprint Browse Graphic KMZ KMZ footprint for data extent https://coast.noaa.gov/ NOAA's Office for Coastal Management (OCM) website Online Resource HTML Information on the NOAA Office for Coastal Management (OCM) 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. https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/OLC_HoodtoCoast_2009_8876/PDX-Hood_Lidar_Report_2007.pdf Project Report Online Resource PDF Final project report for this dataset. Microsoft Windows Vista Version 6.1 (Build 7600) ; ESRI ArcCatalog 9.3.1.3500 Qualitative value: , Test that produced the valued: See LiDAR data report. Qualitative value:RMSE = 0.14 feet, Test that produced the value: The Root Mean Square Error (RMSE) of the data set is 0.14 feet. Accuracy was assessed using 4234 ground survey (real time kinematic) points. Accuracy statistics will be cumulative accross subsequent deliveries, resulting in minor changes in RMSE as well as increasing values for N. Vertical accuracy reported here is for 2008 data only. Please see LiDAR data report for a discussion of statistics related to these datasets. LiDAR data has been collected and processed for all areas within the project study area. LiDAR flight lines have been examined to ensure that there was at least 75% sidelap, there are no gaps between flightlines, and overlapping flightlines have consistent elevation values. Shaded relief images have been visually inspected for data errors such as pits, border artifacts, gaps, and shifting. The data was examined at a 1:3000 scale. Raw Lidar Organization Watershed Sciences Originator 1 Acquisition. The LiDAR data was collected between March 15, 2007 and April 11, 2009. The survey used a Leica ALS50 Pase II laser system mounted in a Cessna Caravan 208, and an Optech 3100 laser system mounted in a Cessna Caravan 208. Near nadir scan angles were used to increase penetration of vegetation to ground surfaces. Ground level GPS and aircraft IMU were collected during the flight. 2 Processing. 1. Flight lines and data were reviewed to ensure complete coverage of the study area and positional accuracy of the laser points. 2. Laser point return coordinates were computed using ALS Post Processor software, IPAS Pro GPS/INS software, REALM survey suite, and PosPac software, based on independent data from the LiDAR system, IMU, and aircraft. 3. The raw LiDAR file was assembled into flight lines per return with each point having an associated x, y, and z coordinate. 4. Visual inspection of swath to swath laser point consistencies within the study area were used to perform manual refinements of system alignment. 5. Custom algorithms were designed to evaluate points between adjacent flight lines. Automated system alignment was computed based upon randomly selected swath to swath accuracy measurements that consider elevation, slope, and intensities. Specifically, refinement in the combination of system pitch, roll and yaw offset parameters optimize internal consistency. 6. Noise (e.g., pits and birds) was filtered using ALS postprocessing software and REALM software tools, based on known elevation ranges and included the removal of any cycle slips. 7. Using TerraScan and Microstation, ground classifications utilized custom settings appropriate to the study area. 8. The corrected and filtered return points were compared to the RTK ground survey points collected to verify the vertical and horizontal accuracies. 9. Points were output as laser points, TINed and GRIDed surfaces. 3 The NOAA Office for Coastal Management (OCM) received 101 ADF DEM files from the Oregon Lidar Comission. These files were converted to GeoTIFF format and EPSG codes assigned using gdaltranslate and internal scripts. The data was then processed to the Data Access Viewer (DAV) and https. 2009-06-16T00:00:00 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 57700 Data Set Cross Reference Lidar Points gov.noaa.nmfs.inport:57763 Blake Waring 2019-09-25T15:28:23 Kirk Waters 2024-01-10T19:08:10 2024-01-10 OCM Partners OCMP 1002 Public No No 2022-03-16 1 Year 2023-03-16