gov.noaa.nmfs.inport:69598 eng UTF8 dataset Elevation Office for Coastal Management 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 2026-08-26T18:31:58 ISO 19115-2 Geographic Information - Metadata Part 2 Extensions for imagery and gridded data ISO 19115-2:2009(E) EPSG::9674 EPSG::5703 2020 USFS Lidar DEM: Sycan Marsh, OR 2020 usfs sycan m9608 2023-03-13 creation publication NOAA/NMFS/EDM 69598 https://www.fisheries.noaa.gov/inport/item/69598 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/laz/geoid18/9778/supplemental/Sycan_AerialSurvey.pdf WWW:LINK-1.0-http--link Data Report Data report from the lidar acquisition contractor. This does not reflect processing done by NOAA OCM. download Digital Elevation Model generated from aerial lidar collected over the Sycan Marsh in Lake and Klamath Counties, OR in 2020. The project area covers approximately 182 square miles. The project was flown with an Optech Galaxy PRIME lidar sensor at an approximate altitude of 5,249 feet above ground level (AGL). Lidar acquisition was planned with 60% side overlap and an aggregate point density of 8 points per square meter throughout the project area. The settings used for collection consisted of a pulse rate frequency (PRF) of 400 kHz, a scan frequency of 67.5 Hz, and a scan angle of +/- 20 degrees from the nadir position (full scan angle 40 degrees). Meet the U.S. Forest Service need for monitoring and assessment. U.S. Forest Service; Aero-Graphic, Inc. 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/geoid18/9778/supplemental/2020_SycanMarsh_extent_m9778.kmz KMZ showing the area covered by the data. KMZ EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM) theme Global Change Master Directory (GCMD) Science Keywords 23.3 CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON 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 CESSNA 206 platform Global Change Master Directory (GCMD) Platform Keywords 23.3 DOC/NOAA/NOS/OCM > Office of Coastal Management, 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). 2026. GCMD Keywords, Version 24. 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 DEMs project InPort otherRestrictions Cite As: Office for Coastal Management, [Date of Access]: 2020 USFS Lidar DEM: Sycan Marsh, OR [Data Date Range], https://www.fisheries.noaa.gov/inport/item/69598. 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: None unclassified 2020 USFS Lidar: Sycan Marsh, OR NOAA/NMFS/EDM 69419 crossReference grid 1 eng; US elevation -121.11475 -120.7416 42.59851059 42.99856375 Acquisition dates based on tile filenames. | Currentness: Ground Condition 2020-06-22 2020-07-10 Zip Zip GeoTIFF 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=9806/details/9806 WWW:LINK-1.0-http--link https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9806/details/9806 Custom download of data allowing subsetting and change of projection download https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/USFS_SycanMarsh_2020_9806/index.html WWW:LINK-1.0-http--link https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/USFS_SycanMarsh_2020_9806/index.html Bulk download of tiles. download dataset Horizontal Positional Accuracy Not tested. Vertical Positional Accuracy Using 120 validation points, the non-vegetated vertical accuracy (NVA) was 0.030 meters at the 95% confidence level. Data were collected and processed by Aero-Graphics, Inc, for the U.S. Forest Service. The U.S. Forest Service transferred the data to NOAA for distribution on the Digital Coast. LiDAR and imagery acquisition for the Sycan USFS R6 project was performed with an Optech Galaxy PRIME LiDAR sensor. The LiDAR sensor was placed in a customized mount to minimize error and increase accuracy. Aero-Graphics flew at an approximate altitude of 5,249 ft above ground level (AGL) and made appropriate adjustments to compensate for topographic relief over the project’s over 71 flightlines. LiDAR acquisition was planned with 60% side overlap and an aggregate point density of 8 points per square meter throughout the project area. The settings used for collection consisted of a pulse rate frequency (PRF) of 400 kHz, a scan frequency of 67.5 Hz, and a scan angle of +/- 20 degrees from the nadir position (full scan angle 40 degrees). 2020-07-10T00:00:00 The absolute sensor calibration was adjusted for the difference in roll, pitch, heading, and scale between the raw laser point cloud from the sensor and surveyed control points on the ground. Differentially corrected the 1/5-second airborne GPS positions with ground base station; combined and refined the GPS positions with 1/200-second IMU (roll-pitch-yaw) data through development of a smoothed best estimate of trajectory (SBET). SBET was combined with raw LiDAR range data and solved for real-world position for each laser point. Point cloud data was produced by flight strip in ASPRS v1.4 .LAS format and output in the local coordinate system. Relative calibration was performed by correcting for roll, pitch, heading, and scale discrepancies between adjacent flightlines and the results were tested for accuracy. Data was cut into project-specified tiles and grossly long and short returns were filtered out. Classification algorithms were run on points in each tile, separating them into bare earth and unclassified points. Manually corrected areas that were not completely classified by the automated algorithms. Data were received by NOAA Office for Coastal Management from the U.S. Forest Service in USFS region 6 Albers coordinates. Data were ingested into the Data Access Viewer system after reformatting to cloud optimized geotiffs. 2023-03-13T00:00:00 NOAA Office for Coastal Management (843) 740-1202 coastal.info@noaa.gov processor DEM Tiffs USFS originator classified lidar data US Forest Service originator