69598
2020 USFS Lidar DEM: Sycan Marsh, OR
2020 usfs sycan m9608
Data Set
Published / External
49401
Lidar - partner (no harvest)
Project
Completed
2023-03-13
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.
This metadata was created from the Aero-Graphics data report. No FGDC compliant metadata was supplied with the data from USFS.
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 > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
Theme
ISO 19115 Topic Category
elevation
Spatial
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON
Instrument
Global Change Master Directory (GCMD) Instrument Keywords
LIDAR > Light Detection and Ranging
Platform
Global Change Master Directory (GCMD) Platform Keywords
CESSNA 206
Office for Coastal Management
Charleston
SC
USA
Data Set
Elevation
None Planned
Model (digital)
U.S. Forest Service; Aero-Graphic, Inc.
Data Steward
2023-03-13
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
2023-03-13
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
2023-03-13
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
-121.11475
-120.7416
42.99856375
42.59851059
Range
2020-06-22
2020-07-10
Acquisition dates based on tile filenames.
1
Meter
Yes
Projected
EPSG:9674
NAD83 / USFS R6 Albers
North American Datum 1983
GRS 1980
6378137
298.257222101
NAD83
US Forest Service region 6 Albers
Albers Equal Area
Latitude of false origin
34
degree
Longitude of false origin
-120
degree
Latitude of 1st standard parallel
43
degree
Latitude of 2nd standard parallel
48
degree
Easting at false origin
600000
metre
Northing at false origin
0
metre
1
Easting
E
metre
east
2
Northing
N
metre
north
Vertical
EPSG:5703
NAVD88 height
North American Vertical Datum 1988
1
Gravity-related height
H
metre
up
Unclassified
Public access.
None
None
2023-03-13
https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9806/details/9806
2023-03-13
Organization
NOAA Office for Coastal Management
Custom download of data allowing subsetting and change of projection
Zip
Zip
2023-03-13
https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/USFS_SycanMarsh_2020_9806/index.html
2023-03-13
Organization
NOAA Office for Coastal Management
Bulk download of tiles.
GeoTIFF
GeoTIFF
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9778/supplemental/2020_SycanMarsh_extent_m9778.kmz
Browse Graphic
Browse Graphic
KMZ
KMZ showing the area covered by the data.
https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9778/supplemental/Sycan_AerialSurvey.pdf
Data Report
Online Resource
pdf
Data report from the lidar acquisition contractor. This does not reflect processing done by NOAA OCM.
Not tested.
Using 120 validation points, the non-vegetated vertical accuracy (NVA) was 0.030 meters at the 95% confidence level.
Yes
Unknown
Yes
No
NCEI-NC
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.
DEM Tiffs
Organization
USFS
Originator
classified lidar data
Organization
US Forest Service
Originator
1
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 projectâs 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
2
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.
3
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
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
DEM Tiffs
69419
Data Set
2020 USFS Lidar: Sycan Marsh, OR
Cross Reference
point cloud used to create this DEM.
gov.noaa.nmfs.inport:69598
Kirk Waters
2023-04-12T17:23:10
Kirk Waters
2024-01-10T19:29:24
2024-01-10
OCM Partners
OCMP
1002
Public
No
2023-03-13
3 Years
2026-03-13