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OCM Partners Metadata Library > Lidar - partner (no harvest) >

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
Item Identification
Keywords
Physical Location
Data Set Info
Support Roles
Extents
Spatial Info
Access Info
Distribution Info
URLs
Tech Environment
Data Quality
Data Management
Lineage
Related Items
Catalog Details

Summary

Browse graphic

Short Citation
OCM Partners, 2024: 2007 - 2009 OLC Lidar: Hood to Coast, OR, https://www.fisheries.noaa.gov/inport/item/57700.
Full Citation Examples

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.

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.

Access Constraints:

None

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.

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

Metadata Contact
NOAA Office for Coastal Management (NOAA/OCM)
coastal.info@noaa.gov
(843) 740-1202

Extents

Geographic Area 1

-124° W, -121° E, 46° N, 44.9° S

Time Frame 1
2007-03-16 - 2007-04-15

Portland lidar acquisition dates.

Time Frame 2
2007-04-27 - 2007-05-11

OR. Dept. of Forestry area of interest acquisition dates.

Time Frame 3
2007-05

Upper Sandy River acquisition date.

Time Frame 4
2007-06-14

Collawash acquisition date.

Time Frame 5
2007-09-29 - 2007-10-07

Lower Sandy River aqcuisition dates.

Time Frame 6
2007-10-14

Mt. Hood (South) acquisition date.

Time Frame 7
2007-10-22 - 2007-10-23

Mt. Hood (North) acquisition dates.

Time Frame 8
2007-11-06 - 2007-11-07

Bull Run acquisition dates.

Time Frame 9
2008-05-18 - 2009-04-11

Hood/Gorge acquisition dates.

Item Identification

Title: 2007 - 2009 OLC Lidar: Hood to Coast, OR
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
City: Charleston
State/Province: SC

Data Set Information

Data Set Scope Code: Data Set
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

CC ID: 878432
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

Distributor

CC ID: 878433
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

CC ID: 878434
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

CC ID: 878435
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

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1142869
W° Bound: -124
E° Bound: -121
N° Bound: 46
S° Bound: 44.9

Extent Group 1 / Time Frame 1

CC ID: 1142860
Time Frame Type: Range
Start: 2007-03-16
End: 2007-04-15
Description:

Portland lidar acquisition dates.

Extent Group 1 / Time Frame 2

CC ID: 1142861
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

CC ID: 1142862
Time Frame Type: Discrete
Start: 2007-05
Description:

Upper Sandy River acquisition date.

Extent Group 1 / Time Frame 4

CC ID: 1142863
Time Frame Type: Discrete
Start: 2007-06-14
Description:

Collawash acquisition date.

Extent Group 1 / Time Frame 5

CC ID: 1142864
Time Frame Type: Range
Start: 2007-09-29
End: 2007-10-07
Description:

Lower Sandy River aqcuisition dates.

Extent Group 1 / Time Frame 6

CC ID: 1142865
Time Frame Type: Discrete
Start: 2007-10-14
Description:

Mt. Hood (South) acquisition date.

Extent Group 1 / Time Frame 7

CC ID: 1142866
Time Frame Type: Range
Start: 2007-10-22
End: 2007-10-23
Description:

Mt. Hood (North) acquisition dates.

Extent Group 1 / Time Frame 8

CC ID: 1142867
Time Frame Type: Range
Start: 2007-11-06
End: 2007-11-07
Description:

Bull Run acquisition dates.

Extent Group 1 / Time Frame 9

CC ID: 1142868
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

CC ID: 878428
Point Object Present?: Yes
Point Object Count: 60488333732

Access Information

Security Class: Unclassified
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

CC ID: 878437
Start Date: 2019-09-24
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

CC ID: 878438
Start Date: 2019-09-24
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

CC ID: 878430
URL: https://coast.noaa.gov/dataviewer/
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

CC ID: 878431
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/8873/supplemental/OLC_hoodTOcoast_2010_m8873.kmz
Name: Browse graphic
URL Type:
Browse Graphic
File Resource Format: KML
Description:

This graphic displays the footprint for this lidar data set.

URL 3

CC ID: 895041
URL: https://coast.noaa.gov/htdata/raster2/elevation/OLC_HoodtoCoast_2009_8876/PDX-Hood_Lidar_Report_2007.pdf
Name: Project Report
URL Type:
Online Resource
File Resource Format: PDF
Description:

Final project report for this dataset.

Technical Environment

Description:

Microsoft Windows Vista Version 6.1 (Build 7600) ; ESRI ArcCatalog 9.3.1.3500

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.

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
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

CC ID: 1142851
Contact Role Type: Originator
Contact Type: Organization
Contact Name: Quantum Spatial/ Watershed Sciences

Process Steps

Process Step 1

CC ID: 1142852
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

Process Step 2

CC ID: 1142853
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

Process Step 3

CC ID: 1142854
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

Process Step 4

CC ID: 1142855
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

Process Step 5

CC ID: 1142856
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

Process Step 6

CC ID: 1142857
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

Process Step 7

CC ID: 1142858
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.
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