2016 USFS Lidar DEM: Colville National Forest, WA
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:69410 | Updated: March 10, 2023 | Published / External
Item Identification
Title: | 2016 USFS Lidar DEM: Colville National Forest, WA |
---|---|
Short Name: | 2016 colville dem m9772 |
Status: | Completed |
Creation Date: | 2023-03-03 |
Abstract: |
Digital elevation model (DEM) derived from lidar data in the Colville and Idaho Panhandle National Forests covering 1,888 square miles. Collected in 2016 for the U.S. Forest Service. |
Purpose: |
The primary purpose of the lidar survey was to establish measurements of the bare earth surface, as well as top surface feature data for providing geometric inputs for modeling, other numerical modeling and economic related assessments. |
Notes: |
No metadata was provided with the data. This metadata was created based on the project report created by Atlantic, Inc. |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
|
ISO 19115 Topic Category |
elevation
|
Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > WASHINGTON
|
Instrument Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Instrument Keywords |
LIDAR > Light Detection and Ranging
|
Platform Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Platform Keywords |
Airplane > Airplane
|
Physical Location
Organization: | Office for Coastal Management |
---|
Data Set Information
Data Set Scope Code: | Data Set |
---|---|
Data Set Type: | Elevation |
Maintenance Frequency: | None Planned |
Data Presentation Form: | Model (digital) |
Entity Attribute Overview: |
Object locations (x,y,z) as determined from airborne lidar. |
Data Set Credit: | U.S. Forest Service, Region 6; Atlantic, Inc. |
Support Roles
Data Steward
Date Effective From: | 2023-03-03 |
---|---|
Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Distributor
Date Effective From: | 2023-03-03 |
---|---|
Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Metadata Contact
Date Effective From: | 2023-03-03 |
---|---|
Date Effective To: | |
Contact (Organization): | NOAA Office for Coastal Management (NOAA/OCM) |
Address: |
2234 South Hobson Ave Charleston, SC 29405-2413 |
Email Address: | coastal.info@noaa.gov |
Phone: | (843) 740-1202 |
URL: | https://coast.noaa.gov |
Extents
Currentness Reference: | Ground Condition |
---|
Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -118.1951 | |
---|---|---|
E° Bound: | -117.8438 | |
N° Bound: | 49 | |
S° Bound: | 48.88558 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Discrete |
---|---|
Start: | 2016-10-12 |
Description: |
Lidar for this AOI was acquired in forty-one (41) flight missions completed on October 12th, 2016. |
Spatial Information
Spatial Representation
Representations Used
Grid: | Yes |
---|
Reference Systems
Reference System 1
Coordinate Reference System |
|||||||||||||||||||||||
|
Reference System 2
Coordinate Reference System |
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|
Access Information
Security Class: | Unclassified |
---|---|
Data Access Constraints: |
None |
Data Use Constraints: |
None |
Distribution Information
Distribution 1
Start Date: | 2023-03-03 |
---|---|
End Date: | Present |
Download URL: | https://chs.coast.noaa.gov/raster5/elevation/USFS_Colville_NF_2016_9772/index.html |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2023-03-03 - Present) |
Description: |
Bulk download of tiles. |
File Type: | GeoTIFF |
Distribution 2
Start Date: | 2023-03-03 |
---|---|
End Date: | Present |
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9772 |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2023-03-03 - Present) |
Description: |
Custom Download of data allowing change of product type, projection, datum, etc. Please use the draw tool to subset. |
File Type: | Zip |
URLs
URL 1
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/9769/supplemental/16062_Aerial_Lidar_Report.pdf |
---|---|
Name: | Data Report |
URL Type: |
Online Resource
|
File Resource Format: | |
Description: |
Data report from contractor. |
Data Quality
Horizontal Positional Accuracy: |
The horizontal errors in lidar data are largely a function of GNSS positional error, INS angular error, and flying altitude. Therefore, lidar data collected with GNSS error of 8cm and the IMU error of 0.00427 degrees at an altitude of 1,965m; the expected radial horizontal positional error will be RMSEr = 28.5cm. |
---|---|
Vertical Positional Accuracy: |
The fundamental vertical accuracy (95% confidence for bare earth) was 0.130 meters based upon 255 GPS points. |
Data Management
Have Resources for Management of these Data Been Identified?: | Yes |
---|---|
Approximate Percentage of Budget for these Data Devoted to Data Management: | Unknown |
Do these Data Comply with the Data Access Directive?: | Yes |
Is Access to the Data Limited Based on an Approved Waiver?: | No |
Actual or Planned Long-Term Data Archive Location: | NCEI-NC |
Lineage
Sources
Classified point cloud
Contact Role Type: | Originator |
---|---|
Contact Type: | Organization |
Contact Name: | USFS |
Source Contribution: |
Data received by NOAA OCM from USFS region 6. |
Process Steps
Process Step 1
Description: |
Differential GPS unit in aircraft collected positions at 2 Hz. Airborne GPS data was processed using the Inertial Explorer (version 8.60.5025) software. Flights were flown with a minimum of 6 satellites in view (10° above the horizon) and with a PDOP of â¤4 when the laser was online. For all flights, the GPS data can be classified as good, with GPS residuals of 3cm average or better but none larger than 10cm being recorded. Data collected by the lidar unit is reviewed for completeness, acceptable density and to make sure all data is captured without errors or corrupted values. In addition, all GPS, aircraft trajectory, mission information, and ground control files are reviewed and logged into a database. |
---|
Process Step 2
Description: |
Atlantic used a combination of Waypoint and Leica software products to extract the lidar swath data from the raw flight records. Waypoint Inertial Explorer is used to extract the raw IPAS ABGPS/IMU data, which is further processed in combination with controlled base stations to provide the final Smoothed Best Estimate Trajectory (SBET) for each mission. The SBETâs are combined with the raw laser scan files to export the (*.las) formatted swath point clouds. |
---|
Process Step 3
Description: |
The calibrated point cloud data from the laser sensor was merged to produce processed (*.las) file(s) including but not limited to 3D position, intensity, and time-stamp. A filtering methodology was utilized to produce a multi-return surface elevation model dataset with bare-earth conditions. GeoCue, TerraScan, and TerraModeler software was used for the initial batch processing and manual editing of the (*.las) point clouds. Outlined in Table 4 are the classification codes utilized for this project. |
---|
Process Step 5
Description: |
Digital elevation model data were received from the U.S. Forest Service by the NOAA Office for Coastal Management in ERDAS Imagine format. Files were in the USFS Region 6 Albers Projection (EPSG:9674) with vertical NAVD88 meters. Files were converted to cloud optimized GeoTiff format for distribution on the Digital Coast Data Access Viewer. No information was provided regarding the interpolation of the classified point cloud into digital elevation models. |
---|---|
Process Date/Time: | 2023-03-03 00:00:00 |
Process Contact: | NOAA Office for Coastal Management (NOAA/OCM) |
Phone (Voice): | (843) 740-1202 |
Email Address: | coastal.info@noaa.gov |
Catalog Details
Catalog Item ID: | 69410 |
---|---|
GUID: | gov.noaa.nmfs.inport:69410 |
Metadata Record Created By: | Kirk Waters |
Metadata Record Created: | 2023-03-08 18:01+0000 |
Metadata Record Last Modified By: | Kirk Waters |
Metadata Record Last Modified: | 2023-03-10 13:15+0000 |
Metadata Record Published: | 2023-03-10 |
Owner Org: | OCMP |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2023-03-06 |
Metadata Review Frequency: | 3 Years |
Metadata Next Review Date: | 2026-03-06 |