gov.noaa.nmfs.inport:49906 eng UTF8 dataset 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) 2009 Oregon Department of Geology and Mineral Industries (DOGAMI) Oregon Lidar: North Coast or2009_dogami_north_coast_m575_metadata 2011-04 publication NOAA/NMFS/EDM 49906 https://www.fisheries.noaa.gov/inport/item/49906 WWW:LINK-1.0-http--link Full Metadata Record View the complete metadata record on InPort for more information about this dataset. information https://coast.noaa.gov/lidar/viewer/v/noaapotree.html?r=https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/entwine/geoid18/575/ept.json WWW:LINK-1.0-http--link 3D browser viewer 3D browser viewer of the data using Potree. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/575/supplemental/NC_Data_Report_Delivery_Area_FINAL_compressed.pdf WWW:LINK-1.0-http--link Data Report Original contractor provided data report. download The Oregon Department of Geology and Mineral Industries (DOGAMI) contracted with Watershed Sciences, Inc. to collect high resolution topographic LiDAR data for multiple areas within the state of Oregon. The areas for LiDAR collection have been designed as part of a collaborative effort of state, federal, and local agencies in order to meet a wide range of project goals. This LiDAR data set was collected in 11 delivery areas from October 23, 2008 through August 9, 2009. See below for the specific date of collection and total area covered for each delivery. This data set covers 1553 square miles (994,440 square acres) and falls in portions of the following counties in northwestern Oregon: Clatsop, Columbia, Lane, Lincoln, Tillamook, and Washington. This data set consists of bare earth and unclassified points. The average pulse density is 8.61 points per square meter over terrestrial surfaces. In some areas of heavy vegetation or forest cover, there may be relatively few ground points in the LiDAR data. Elevation values for open water surfaces are not valid elevation values because few LiDAR points are returned from water surfaces. LiDAR intensity values were also collected. This LiDAR data set was collected on different dates and organized into 11 deliveries. To determine which delivery or deliveries are in your area of interest, download the Delivery Area graphic at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/575/supplemental/2009_dogami_oregon_lidar_north_coast.jpg The specific date of collection and total area covered for each delivery are listed below. Delivery 1: Acquisition Date: 20090405-20090510 Total Area = 96,383 sq acres Delivery 2: Acquisition Date: 20090416-20090615 Total Area = 115,458 sq acres Delivery 3: Acquisition Date: 20081023-20090615 Total Area = 78,033 sq acres Delivery 4: Acquisition Date: 20081025-20081116 Total Area = 53,279 sq acres Delivery 5: Acquisition Date: 20090426-20090628 Total Area = 74,477 sq acres Delivery 6: Acquisition Date: 20090531-20090623 Total Area = 101,056 sq acres Delivery 7: Acquisition Date: 20090531-20090628 Total Area = 99,438 sq acres Delivery 8: Acquisition Date: 20090520-20090616 Total Area = 71,734 sq acres Delivery 9: Acquisition Date: 20090421-20090716 Total Area = 101,033 sq acres Delivery 10: Acquisition Date: 20090710-20090719 Total Area = 133,920 sq acres Delivery 11: Acquisition Date: 20090714-20090809 Total Area = 69,629 sq acres Original contact information: Contact Name: Ian Madin Contact Org: DOGAMI Phone: 971-673-1542 Email: ian.madin@dogami.state.or.us Provide high resolution terrain elevation and land cover elevation data. DOGAMI 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 notPlanned https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/575/supplemental/2009_dogami_oregon_lidar_north_coast.jpg Image showing the coverage. jpg Bare earth Bare ground DOGAMI High-resolution Light Detection and Ranging theme Lidar - partner (no harvest) project InPort otherRestrictions Cite As: OCM Partners, [Date of Access]: 2009 Oregon Department of Geology and Mineral Industries (DOGAMI) Oregon Lidar: North Coast [Data Date Range], https://www.fisheries.noaa.gov/inport/item/49906. 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 the Oregon Department of Geology and Mineral Industries (DOGAMI), the Office for Coastal Management or its partners. unclassified vector eng; US elevation Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.1324 -124.150419 -122.814919 43.87495 46.23925 | Currentness: Ground Condition 2008-10-23 2009-08-09 A final report for this project may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/575/supplemental/NC_Data_Report_Delivery_Area_FINAL_compressed.pdf A footprint of this data set may be viewed in Google Earth at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/575/supplemental/2009_DOGAMI_Oregon_Lidar_North_Coast.kmz LAS/LAZ - LASer LAZ 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=575 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/laz/geoid18/575/index.html WWW:LINK-1.0-http--link Bulk Download Simple download of data files. In orthometric vertical datum. download https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/entwine/geoid18/575/ept.json WWW:LINK-1.0-http--link ept.json Entwine Point Tiles for the data. Allows streaming of the data with software that understands EPT. This is in an orthometric vertical datum. download dataset Horizontal Positional Accuracy Horizontal accuracies were not specified in the agreement since true horizontal accuracy is regarded as a product of the LiDAR ground foot print. LiDAR is referenced to co-acquired GPS base station data that has accuracies far greater than the value of the LiDAR foot print. The ground footprint is equal to 1/3333rd of above ground flying height. Survey altitude for this acquisition was targeted at 900 meters yielding a ground foot print of 0.27 meters. This value exceeds the typical accuracy value of ground control used to reference the LiDAR data (<0.01m). Project specifications required the LiDAR foot print to fall within 0.15 and 0.40 meters. Vertical Positional Accuracy Because this data set was collected in 11 different deliveries, each delivery had a different RMSE. The RMSE value provided in each delivery's data report was cumulative, based on the previous deliveries combined RMSE. Absolute accuracy compares known Real Time Kinematic (RTK) ground survey points to the closest laser point. For the Oregon North Coast Study Area, 23,935 RTK point were collected for data delivered. The final vertical accuracy value for the entire project is 0.11 ft (0.03 m) RMSE. For more information about the vertical accuracy, please refer to the final report, listed above in the Supplemental_Information field of this metadata record. Completeness Report LiDAR data has been collected and processed for all areas within the project study area. Conceptual Consistency Upon receipt from vendor (Watershed Sciences), all LiDAR data was independently reviewed by staff from the Oregon Department of Geology and Mineral Industries (DOGAMI) to ensure project specifications were met. All data were inventoried for completeness and data were checked for quality, which included examining LiDAR data for errors associated with internal data consistency, model quality, and accuracy. The LiDAR data was collected between October 23, 2008 and August 9, 2009. The survey used a Leica ALS50 Phase II laser system mounted in a Cessna Caravan 208B. The system was set to acquire > or = 105,000 laser pulses per second (i.e. 105 kHz pulse rate) and flown at 900 meters above ground level (AGL), capturing a scan angle of +/- 14 degrees from nadir. These settings were developed to yield points with an average native density of > or = 8 points per square meter over terrestrial surfaces. The native pulse density is the number of pulses emitted by the LiDAR system. Some types of surfaces (i.e. dense vegetation or water) may return fewer pulses than the laser originally emitted. Therefore, the delivered density can be less than the native density and lightly variable according to distributions of terrain, land cover, and water bodies. The completed areas were surveyed with opposing flight line side-lap of > or = 50% (> or = 100% overlap) to reduce laser shadowing and increase surface laser painting. The system allows up to four range measurements per pulse, and all discernible laser returns were processed for the output dataset. During the LiDAR survey of the study area, a static (1 Hz recording frequency) ground survey was conducted over monuments with known coordinates. After the airborne survey, the static GPS data are processed using triangulation with CORS stations checked against the Online Positioning User Service (OPUS) to quantify daily variance. Multiple sessions are processed over the same monument to confirm the antenna height measurements and reported position accuracy. Multiple DGPS units are used for the ground real-time kinematic (RTK) portion of the survey. To collect accurate ground surveyed points, a GPS base unit is set up over monuments to broadcast a kinematic correction to a roving GPS unit. The ground crew uses a roving unit to receive radio-relayed kinematic corrected positions from the base unit. This method is referred to as real-time kinematic (RTK) surveying and allows precise location measurement (sigma < or = 1.5 cm (0.6 in)). 2009-01-01T00:00:00 1. Laser point coordinates are computed using the IPAS and ALS Post Processor software suites based on independent data from the LiDAR system (pulse time, scan angle), and aircraft trajectory data (SBET). Laser point returns (first through fourth) are assigned an associated (x, y, z) coordinate along with unique intensity values (0-255). The data are output into large LAS v. 1.1 files; each point maintains the corresponding scan angle, return number (echo), intensity, and x, y, z (easting, northing, and elevation) information. 2. These initial laser point files are too large to process. To facilitate laser point processing, bins (polygons) are created to divide the dataset into manageable sizes (< 500 MB). Flightlines and LiDAR data are then reviewed to ensure complete coverage of the study area and positional accuracy of the laser points. 3. Once the laser point data are imported into bins in TerraScan, a manual calibration is performed to assess the system offsets for pitch, roll, heading, and mirror scale. Using a geometric relationship developed by Watershed Sciences, each of these offsets is resolved and corrected if necessary. 4. The LiDAR points are then filtered for noise, pits, and birds by screening for absolute elevation limits, isolated points, and height above ground. Each bin is then inspected for pits and birds manually; spurious points are removed. For a bin containing approximately 7.5-9.0 million points, an average of 50-100 points are typically found to be artificially low or high. These spurious non-terrestrial laser points must be removed from the dataset. Common sources of non-terrestrial returns are clouds, birds, vapor, and haze. 5. The internal calibration is refined using TerraMatch. Points from overlapping lines are tested for internal consistency and final adjustments are made for system misalignments (i.e., pitch, roll, heading offsets and mirror scale). Automated sensor attitude and scale corrections yield 3-5 cm improvements in the relative accuracy. Once the system misalignments are corrected, vertical GPS drift is then resolved and removed per flight line, yielding a slight improvement (<1 cm) in relative accuracy. At this point in the workflow, data have passed a robust calibration designed to reduce inconsistencies from multiple sources (i.e. sensor attitude offsets, mirror scale, GPS drift) using a procedure that is comprehensive (i.e. uses all of the overlapping survey data). Relative accuracy screening is complete. 6. The TerraScan software suite is designed specifically for classifying near-ground points (Soininen, 2004). The processing sequence begins by 'removing' all points that are not 'near' the earth based on geometric constraints used to evaluate multi-return points. The resulting bare earth (ground) model is visually inspected and additional ground point modeling is performed in site-specific areas (over a 50-meter radius) to improve ground detail. This is only done in areas with known ground modeling deficiencies, such as: bedrock outcrops, cliffs, deeply incised stream banks, and dense vegetation. In some cases, ground point classification includes known vegetation (i.e., understory, low/dense shrubs, etc.) and these points are manually reclassified as non-grounds. 2009-01-01T00:00:00 The NOAA Office for Coastal Management (OCM) received the files in las format. The files contained LiDAR elevation and intensity measurements. The data were in Oregon Lambert (NAD83), International Feet coordinates and NAVD88 (Geoid 03) vertical datum. OCM performed the following processing to the data to make it available within the Digital Coast: 1. The data were converted from Oregon Lambert (NAD83), International Feet coordinates to geographic coordinates. 2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 03. 3. The vertical units of the data were converted from International feet to meters. 4. The data were sorted by latitude and the headers were updated. 2011-04-01T00:00:00