2007 - 2009 OLC Lidar: Hood to Coast, OR
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:57700 | Updated: October 17, 2023 | Published / External
Summary
Short Citation
OCM Partners, 2025: 2007 - 2009 OLC Lidar: Hood to Coast, OR, https://www.fisheries.noaa.gov/inport/item/57700.
Full Citation Examples
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 delivered acreage for the study area is greater than the original amount due to buffering of the original AOIs for flight planning optimization.
The LiDAR survey utilized a Leica ALS50 Phase II mounted in Cessna Caravan 208B and an Optech 3100 laser system mounted in a Cessna Caravan 208. The Leica ALS50 Phase II system was set to acquire ≥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 ±14o from nadir1. The Optech 3100 system was set to acquire 71,000 laser pulses per second (i.e. 71 kHz pulse rate) and flown at 900 meters above ground level (AGL) capturing a scan angle of ±14 degrees from nadir. These settings are developed to yield points with an average native density of ≥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 NOAA Office for Coastal Management (OCM) received 5,163 LAZ files from the Oregon Lidar Comission, with 4158 in Oregon State Plane North projection, and 1,005 in Oregon Lambert projection. These files were processed to the Data Access Viewer (DAV) and https. In addition to the lidar point data, bare earth digital elevation models (DEMs), at 3-foot resolution in ESRI GRID format, created from 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.
Distribution Information
-
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base.
-
LAS/LAZ - LASer
Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document.
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.
Controlled Theme Keywords
COASTAL ELEVATION, elevation, LIDAR, TERRAIN ELEVATION, TOPOGRAPHY
Child Items
No Child Items for this record.
Contact Information
Point of Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202
https://coast.noaa.gov
Extents
-124° W,
-121° E,
46° N,
44.9° S
2007-03-16 - 2007-04-15
Portland lidar acquisition dates.
2007-04-27 - 2007-05-11
OR. Dept. of Forestry area of interest acquisition dates.
2007-05
Upper Sandy River acquisition date.
2007-06-14
Collawash acquisition date.
2007-09-29 - 2007-10-07
Lower Sandy River aqcuisition dates.
2007-10-14
Mt. Hood (South) acquisition date.
2007-10-22 - 2007-10-23
Mt. Hood (North) acquisition dates.
2007-11-06 - 2007-11-07
Bull Run acquisition dates.
2008-05-18 - 2009-04-11
Hood/Gorge acquisition dates.
Item Identification
Title: | 2007 - 2009 OLC Lidar: Hood to Coast, OR |
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Short Name: | Hood_to_Coast_2009_metadata.xml |
Status: | Completed |
Creation Date: | 2020-01-22 |
Abstract: |
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 delivered acreage for the study area is greater than the original amount due to buffering of the original AOIs for flight planning optimization. The LiDAR survey utilized a Leica ALS50 Phase II mounted in Cessna Caravan 208B and an Optech 3100 laser system mounted in a Cessna Caravan 208. The Leica ALS50 Phase II system was set to acquire ≥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 ±14o from nadir1. The Optech 3100 system was set to acquire 71,000 laser pulses per second (i.e. 71 kHz pulse rate) and flown at 900 meters above ground level (AGL) capturing a scan angle of ±14 degrees from nadir. These settings are developed to yield points with an average native density of ≥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 NOAA Office for Coastal Management (OCM) received 5,163 LAZ files from the Oregon Lidar Comission, with 4158 in Oregon State Plane North projection, and 1,005 in Oregon Lambert projection. These files were processed to the Data Access Viewer (DAV) and https. In addition to the lidar point data, bare earth digital elevation models (DEMs), at 3-foot resolution in ESRI GRID format, created from 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. |
Purpose: |
Provide high resolution terrain elevation and land cover elevation data. |
Keywords
Theme Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
|
Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > SPECTRAL/ENGINEERING > LIDAR
|
ISO 19115 Topic Category |
elevation
|
UNCONTROLLED | |
Global Change Master Directory (GCMD) Science Keywords | DEM |
Global Change Master Directory (GCMD) Science Keywords | elevation data |
Global Change Master Directory (GCMD) Science Keywords | high-resolution |
Global Change Master Directory (GCMD) Science Keywords | Light Detection and Ranging |
None | bare earth |
None | bare ground |
Spatial Keywords
Thesaurus | Keyword |
---|---|
Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA
|
Global Change Master Directory (GCMD) Location Keywords |
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > OREGON
|
Global Change Master Directory (GCMD) Location Keywords |
VERTICAL LOCATION > LAND SURFACE
|
UNCONTROLLED | |
None | Continent > North America > United States Of America > Oregon > Clackamas County |
None | Continent > North America > United States Of America > Oregon > Columbia County |
None | Continent > North America > United States Of America > Oregon > Hood River County |
None | Continent > North America > United States Of America > Oregon > Marion County |
None | Continent > North America > United States Of America > Oregon > Multnomah County |
None | Continent > North America > United States Of America > Oregon > Portland Metro Area |
None | Continent > North America > United States Of America > Oregon > Tillamook County |
None | Continent > North America > United States Of America > Oregon > Washington County |
None | Continent > North America > United States Of America > Oregon > Yamhill County |
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 |
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City: | Charleston |
State/Province: | SC |
Data Set Information
Data Set Scope Code: | Data Set |
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Data Set Type: | Elevation |
Data Presentation Form: | Model (digital) |
Distribution Liability: |
Any conclusions drawn from the analysis of this information are not the responsibility of NOAA, the Office for Coastal Management or its partners |
Data Set Credit: | Oregon Lidar Commission, DoGAMI, Oregon Department of Forestry, Watershed Sciences, Inc. |
Support Roles
Data Steward
Date Effective From: | 2019 |
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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: | 2019 |
---|---|
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: | 2019 |
---|---|
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 |
Point of Contact
Date Effective From: | 2019 |
---|---|
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 |
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Extent Group 1
Extent Group 1 / Geographic Area 1
W° Bound: | -124 | |
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E° Bound: | -121 | |
N° Bound: | 46 | |
S° Bound: | 44.9 |
Extent Group 1 / Time Frame 1
Time Frame Type: | Range |
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Start: | 2007-03-16 |
End: | 2007-04-15 |
Description: |
Portland lidar acquisition dates. |
Extent Group 1 / Time Frame 2
Time Frame Type: | Range |
---|---|
Start: | 2007-04-27 |
End: | 2007-05-11 |
Description: |
OR. Dept. of Forestry area of interest acquisition dates. |
Extent Group 1 / Time Frame 3
Time Frame Type: | Discrete |
---|---|
Start: | 2007-05 |
Description: |
Upper Sandy River acquisition date. |
Extent Group 1 / Time Frame 4
Time Frame Type: | Discrete |
---|---|
Start: | 2007-06-14 |
Description: |
Collawash acquisition date. |
Extent Group 1 / Time Frame 5
Time Frame Type: | Range |
---|---|
Start: | 2007-09-29 |
End: | 2007-10-07 |
Description: |
Lower Sandy River aqcuisition dates. |
Extent Group 1 / Time Frame 6
Time Frame Type: | Discrete |
---|---|
Start: | 2007-10-14 |
Description: |
Mt. Hood (South) acquisition date. |
Extent Group 1 / Time Frame 7
Time Frame Type: | Range |
---|---|
Start: | 2007-10-22 |
End: | 2007-10-23 |
Description: |
Mt. Hood (North) acquisition dates. |
Extent Group 1 / Time Frame 8
Time Frame Type: | Range |
---|---|
Start: | 2007-11-06 |
End: | 2007-11-07 |
Description: |
Bull Run acquisition dates. |
Extent Group 1 / Time Frame 9
Time Frame Type: | Range |
---|---|
Start: | 2008-05-18 |
End: | 2009-04-11 |
Description: |
Hood/Gorge acquisition dates. |
Spatial Information
Spatial Representation
Representations Used
Grid: | No |
---|---|
Vector: | Yes |
Text / Table: | No |
TIN: | No |
Stereo Model: | No |
Video: | No |
Vector Representation 1
Point Object Present?: | Yes |
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Point Object Count: | 60488333732 |
Access Information
Security Class: | Unclassified |
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Data Access Procedure: |
Data is available online for custom downloads |
Data Access Constraints: |
None |
Data 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. |
Distribution Information
Distribution 1
Start Date: | 2019-09-24 |
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End Date: | Present |
Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8873 |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2019 - Present) |
File Name: | Customized Download |
Description: |
Create custom data files by choosing data area, product type, map projection, file format, datum, etc. A new metadata will be produced to reflect your request using this record as a base. |
File Type (Deprecated): | Zip |
Compression: | Zip |
Distribution 2
Start Date: | 2019-09-24 |
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End Date: | Present |
Download URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8873/index.html |
Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2019 - Present) |
File Name: | Bulk Download |
Description: |
Bulk download of data files in LAZ format, geographic coordinates, orthometric heights. Note that the vertical datum (hence elevations) of the files here are different than described in this document. |
File Type (Deprecated): | LAZ |
Distribution Format: | LAS/LAZ - LASer |
Compression: | Zip |
URLs
URL 1
URL: | https://coast.noaa.gov/dataviewer/ |
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Name: | NOAA's Office for Coastal Management (OCM) Data Access Viewer (DAV) |
URL Type: |
Online Resource
|
File Resource Format: | HTML |
Description: |
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. |
URL 2
URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8873/supplemental/OLC_hoodTOcoast_2010_m8873.kmz |
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Name: | Browse graphic |
URL Type: |
Browse Graphic
|
File Resource Format: | KML |
Description: |
This graphic displays the footprint for this lidar data set. |
URL 3
URL: | https://coast.noaa.gov/htdata/raster2/elevation/OLC_HoodtoCoast_2009_8876/PDX-Hood_Lidar_Report_2007.pdf |
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Name: | Project Report |
URL Type: |
Online Resource
|
File Resource Format: | |
Description: |
Final project report for this dataset. |
Technical Environment
Description: |
Microsoft Windows Vista Version 6.1 (Build 7600) ; ESRI ArcCatalog 9.3.1.3500 |
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Data Quality
Vertical Positional Accuracy: |
Real-time kinematic (RTK) surveys were conducted in multiple locations throughout the study area for quality assurance purposes. The accuracy of the LiDAR data is described as standard deviations of divergence (sigma ~ σ) from RTK ground survey points and root mean square error (RMSE) which considers bias (upward or downward). These statistics are calculated cumulatively for each acquisition year. For the DOGAMI / ODF study areas, the data have the following accuracy statistics: 2007 ODF and DoGAMI Data Acquisitions = RMSE of 0.11 feet, 1-isgma absolute deviation of 0.11 feet and 2-sigma absolute deviation of 0.23 feet. 2008 DoGAMI Data Acquisition = RMSE 0.13 feet, 1-sigma absolute deviation of 0.11 feet and 2-sigma absolute deviation of 0.27 feet. |
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Data Management
Have Resources for Management of these Data Been Identified?: | Yes |
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Approximate Percentage of Budget for these Data Devoted to Data Management: | Unknown |
Do these Data Comply with the Data Access Directive?: | Yes |
Actual or Planned Long-Term Data Archive Location: | NCEI-CO |
How Will the Data Be Protected from Accidental or Malicious Modification or Deletion Prior to Receipt by the Archive?: |
Data is backed up to tape and to cloud storage. |
Lineage
Sources
Raw Lidar
Contact Role Type: | Originator |
---|---|
Contact Type: | Organization |
Contact Name: | Quantum Spatial/ Watershed Sciences |
Process Steps
Process Step 1
Description: |
Resolve kinematic corrections for aircraft position data using kinematic aircraft GPS and static ground GPS data. Software: Waypoint GPS v.8.10, Trimble Geomatics Office v.1.62 |
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Process Step 2
Description: |
Develop a smoothed best estimate of trajectory (SBET) file that blends the post-processed aircraft position with attitude data. Sensor head position and attitude are calculated throughout the survey. The SBET data are used extensively for laser point processing. Software: IPAS v.1.4 |
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Process Step 3
Description: |
Calculate laser point position by associating the SBET position to each laser point return time, scan angle, intensity, etc. Creates raw laser point cloud data for the entire survey in *.las (ASPRS v1.1) format. Software: ALS Post Processing Software |
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Process Step 4
Description: |
Import raw laser points into manageable blocks (less than 500 MB) to perform manual relative accuracy calibration and filter for pits/birds. Ground points are then classified for individual flight lines (to be used for relative accuracy testing and calibration). Software: TerraScan v.9.001 |
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Process Step 5
Description: |
Using ground classified points per each flight line, the relative accuracy is tested. Automated line-to-line calibrations are then performed for system attitude parameters (pitch, roll, heading), mirror flex (scale) and GPS/IMU drift. Calibrations are performed on ground classified points from paired flight lines. Every flight line is used for relative accuracy calibration. Software: TerraMatch v.9.001 |
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Process Step 6
Description: |
Position and attitude data are imported. Resulting data are classified as ground and nonground points. Statistical absolute accuracy is assessed via direct comparisons of ground classified points to ground RTK survey data. Data are then converted to orthometric elevations (NAVD88) by applying a Geoid03 correction. Ground models are created as a triangulated surface and exported as ArcInfo ASCII grids at a 3-foot pixel resolution. Software: TerraScan v.9.001, ArcMap v9.3, TerraModeler v.9.001 |
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Process Step 7
Description: |
The NOAA Office for Coastal Management (OCM) received 5163 laz files from the Oregon Lidar Commission. The lidar data had elevation and intensity measurements. The data were in Oregon State Plane North and Oregon Lambert (NAD83 HARN) coordinates (Int Feet) and NAVD88 (Geoid 03) elevations in feet. The data were classified as: 1-Unclassified, 2-Ground. OCM processed all classifications of points to the Digital Coast Data Access Viewer (DAV). OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: Internal OCM scripts were run on the laz files to convert from orthometric (NAVD88) elevations to ellipsoid elevations using the Geoid 03 model, to convert from projected (NAD83 HARN) coordinates in international feet to geographic coordinates, to convert vertical units from feet to meters, to assign the geokeys, to sort the data by gps time, and zip the data to database and to http. |
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Process Contact: | Office for Coastal Management (OCM) |
Related Items
Item Type | Relationship Type | Title |
---|---|---|
Data Set (DS) | Cross Reference |
2007 - 2009 OLC Lidar DEM: Hood to Coast, OR Bare Earth DEM |
Catalog Details
Catalog Item ID: | 57700 |
---|---|
GUID: | gov.noaa.nmfs.inport:57700 |
Metadata Record Created By: | Blake Waring |
Metadata Record Created: | 2019-09-24 13:42+0000 |
Metadata Record Last Modified By: | SysAdmin InPortAdmin |
Metadata Record Last Modified: | 2023-10-17 16:12+0000 |
Metadata Record Published: | 2022-03-16 |
Owner Org: | OCMP |
Metadata Publication Status: | Published Externally |
Do Not Publish?: | N |
Metadata Last Review Date: | 2022-03-16 |
Metadata Review Frequency: | 1 Year |
Metadata Next Review Date: | 2023-03-16 |