2015 Oregon Department Forestry Lidar: Northwest OR

Item Identification

Title:	2015 Oregon Department Forestry Lidar: Northwest OR
Short Name:	or2015_odf_northwest_m6379_metadata
Status:	Completed
Publication Date:	2017-09-20
Abstract:	GeoTerra, Inc. was selected by Oregon Department of Forestry to provide Lidar remote sensing data including LAZ files of the classified Lidar points and surface models for approximately 591 square miles over five (5) sites in Northwest Oregon. Airborne Lidar mapping technology provides 3D information for the surface of the Earth which includes terrain surface models, vegetation characteristics and man-made features. Lidar technology is capable of penetrating gaps in forest canopies and to reach the ground below allowing for creation of accurate bare earth and vegetation surfaces. Lidar point clouds were projected back to geographic coordinates for storage in the Digital Coast Data Access Viewer. Original contact information: Contact Name: Jacob Edwards Contact Org: DOGAMI Phone: 971-673-1557 Email: jacob.edwards@oregon.gov
Purpose:	Provide high resolution terrain elevation data.
Notes:	10588
Supplemental Information:	A final report for this project may be viewed at: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6379/supplemental/2015_ODF_LiDAR_Technical_Report.pdf

Keywords

Theme Keywords

Thesaurus	Keyword
ISO 19115 Topic Category	elevation
UNCONTROLLED
None	Bare earth
None	Bare ground
None	DOGAMI
None	High-resolution
None	Light Detection and Ranging
None	ODF
None	Oregon Department of Forestry

Thesaurus

Keyword

ISO 19115 Topic Category

elevation

UNCONTROLLED

None

Bare earth

None

Bare ground

None

DOGAMI

None

High-resolution

None

Light Detection and Ranging

None

ODF

None

Oregon Department of Forestry

Physical Location

Organization:	Office for Coastal Management
City:	Charleston
State/Province:	SC

Data Set Information

Data Set Scope Code:	Data Set
Maintenance Frequency:	None Planned
Distribution Liability:	Any conclusions drawn from the analysis of this information are not the responsibility of the Oregon Department of Forestry, Oregon Department of Geology and Mineral Industries (DOGAMI), the Office for Coastal Management or its partners.
Data Set Credit:	ODF, DOGAMI, GeoTerra

Support Roles

Data Steward

CC ID: 684208

Date Effective From:	2017-09-20
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: 684210

Date Effective From:	2017-09-20
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: 684211

Date Effective From:	2017-09-20
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: 684209

Date Effective From:	2017-09-20
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: 1140204

W° Bound:	-123.905
E° Bound:	-122.393
N° Bound:	46.237
S° Bound:	44.818

Extent Group 1 / Time Frame 1

CC ID: 1140203

Time Frame Type:	Range
Start:	2015-04-19
End:	2016-03-30

Spatial Information

Spatial Representation

Representations Used

Vector:	Yes

Access Information

Security Class:	Unclassified
Data Access Procedure:	This data can be obtained on-line at the following URL: https://coast.noaa.gov/dataviewer ;
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: 742224

Download URL:	https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=6379
Distributor:
File Name:	Customized Download
Description:	Create custom data files by choosing data area, product type, map projection, file format, datum, etc.

Distribution 2

CC ID: 742225

Download URL:	https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/6379/index.html
Distributor:
File Name:	Bulk Download
Description:	Simple download of data files.

URLs

URL 1

CC ID: 742227

URL:	https://coast.noaa.gov/dataviewer
URL Type:	Online Resource

URL 2

CC ID: 742228

URL:	https://coast.noaa.gov
URL Type:	Online Resource

Activity Log

Activity Log 1

CC ID: 684238

Activity Date/Time:	2017-09-22
Description:	Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 684237

Activity Date/Time:	2017-11-14
Description:	Converted from FGDC Content Standards for Digital Geospatial Metadata (version FGDC-STD-001-1998) using 'fgdc_to_inport_xml.pl' script. Contact Tyler Christensen (NOS) for details.

Activity Log 3

CC ID: 718541

Activity Date/Time:	2018-02-08
Description:	Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 742226

Activity Date/Time:	2018-03-13
Description:	Partial upload to move data access links to Distribution Info.

Data Quality

Horizontal Positional Accuracy:	unknown
Vertical Positional Accuracy:	Vertical accuracy was determined by GeoTerra using premarked control points. A total of 21 points were used for the sites collected in 2015 (Salmonberry, Columbia, McGregor, and Wilkerson/Wilark) and 9 points were used for the 2016 data in the Abiqua site. The 22 points listed in the data reports were used by NOAA to compute an overall accuracy assessment, with an RMSEz of 0.056 meters, though it is not clear if these points were independent or had been used in the calibration. In Columbia and Clatsop sites, 84 RTK QC/QA points were collected, resulting in an RMSE of 0.064 meters. For more information about the vertical accuracy, please refer to the final report, listed above in the Supplemental_Information field of this metadata record. ; Quantitative Value: 0.056 meters, Test that produced the value: Tested to meet RMSE in meters. This is from the 22 points found in the technical reports.
Completeness Report:	LiDAR data has been collected and processed for all areas within the project study area.
Conceptual Consistency:	Data were reviewed for completeness by ODF upon receipt. Vertical accuracy was determined by GeoTerra using control points.

Lineage

Process Steps

Process Step 1

CC ID: 1140199

Description:	GeoTerra, Inc. acquired Lidar sensor data with Optech Orion H300 mounted in Cessna 180 on following dates: - Salmonberry site - April 19th and April 20th 2015 - Wilkerson/Wilark site - May 30th, June 5th and June 6th 2015 - McGregor site - June 6th, June 8th 2015 - Columbia site - June 8th, June 9th 2015 For the Abiqua site, GeoTerra Inc. used the Optech Galaxy Lidar system to acquire the areas. The Optech Galaxy emits higher pulse rate of 35 - 550 kHz and can record up to 8 range measurements per laser pulse emitted. A pulse rate of 450KHz was used and data was collected on March 30, 2016.
Process Date/Time:	2015-01-01 00:00:00

Description:

GeoTerra, Inc. acquired Lidar sensor data with Optech Orion H300 mounted in Cessna 180 on following dates:

- Salmonberry site - April 19th and April 20th 2015

- Wilkerson/Wilark site - May 30th, June 5th and June 6th 2015

- McGregor site - June 6th, June 8th 2015

- Columbia site - June 8th, June 9th 2015

For the Abiqua site, GeoTerra Inc. used the Optech Galaxy Lidar system to acquire the areas. The Optech Galaxy emits higher pulse rate of 35 - 550 kHz and can record up to 8 range measurements per laser pulse emitted. A pulse rate of 450KHz was used and data was collected on March 30, 2016.

Process Date/Time:

2015-01-01 00:00:00

Process Step 2

CC ID: 1140200

Description:	Processing. Relative and absolute adjustment of all strips was accomplished using Optech LMS software and TerraMatch. Optech LMS performs automated extraction of planar surfaces from the cloud of points according to specified parameters per project. Tie plane determination then establishes the correspondence between planes in overlapping flight lines. All plane centers of all lines that form a block are sorted into a grid. Plane surfaces from overlapping flight lines are used, co-located to within an acceptable tolerance, and are then tested for correspondence. A set of appropriate tie planes is selected for the self-calibration. Selection criteria are size and shape, number of laser points, slope, orientation with respect to flight direction, location within the flight line and fitting error. All these criteria have an effect as they determine the geometry of the adjustment. Self-Calibration parameters are then calculated and used to re-calculate the laser point coordinates (X,Y,Z). The planar surfaces are re-calculated as well for a final adjustment. Additionally each mission was further reviewed and adjusted in TerraMatch using tie lines approach. The software measures the difference between lines (observations) in overlapping strips. These observed differences are translated into correction values for the system orientation - easting, northing, elevation, heading, roll, pitch and mirror scale.
Process Date/Time:	2016-01-01 00:00:00

Description:

Processing.

Relative and absolute adjustment of all strips was accomplished using Optech LMS software and TerraMatch. Optech LMS performs automated extraction of planar surfaces from the cloud of points according to specified parameters per project. Tie plane determination then establishes the correspondence between planes in overlapping flight lines. All plane centers of all lines that form a block are sorted into a grid. Plane surfaces from overlapping flight lines are used, co-located to within an acceptable tolerance, and are then tested for correspondence.

A set of appropriate tie planes is selected for the self-calibration. Selection criteria are size and shape, number of laser points, slope, orientation with respect to flight direction, location within the flight line and fitting error. All these criteria have an effect as they determine the geometry of the adjustment. Self-Calibration parameters are then calculated and used to re-calculate the laser point coordinates (X,Y,Z). The planar surfaces are re-calculated as well for a final adjustment.

Additionally each mission was further reviewed and adjusted in TerraMatch using tie lines approach.

The software measures the difference between lines (observations) in overlapping strips. These observed differences are translated into correction values for the system orientation - easting, northing, elevation, heading, roll, pitch and mirror scale.

Process Date/Time:

2016-01-01 00:00:00

Process Step 3

CC ID: 1140201

Description:	The NOAA Office for Coastal Management (OCM) received the files in laz format. The files contained Lidar elevation and intensity measurements. The data were in Oregon Lambert (NAD83 2011 Epoch 2010.0), International Feet coordinates and NAVD88 (Geoid12a) vertical feet. OCM performed the following processing to the data to make it available within the Digital Coast: 1. The data were converted from Oregon Lambert (NAD83), International Feet coordinates to geographic coordinates. 2. The vertical units of the data were converted from International feet to meters. 3. The data were converted from NAVD88 (orthometric) heights to NAD83(2011) ellipsoid heights using Geoid12a grids.
Process Date/Time:	2017-09-01 00:00:00

Description:

The NOAA Office for Coastal Management (OCM) received the files in laz format. The files contained Lidar elevation and intensity measurements. The data were in Oregon Lambert (NAD83 2011 Epoch 2010.0), International Feet coordinates and NAVD88 (Geoid12a) vertical feet. OCM performed the following processing to the data to make it available within the Digital Coast:

1. The data were converted from Oregon Lambert (NAD83), International Feet coordinates to geographic coordinates.

2. The vertical units of the data were converted from International feet to meters.

3. The data were converted from NAVD88 (orthometric) heights to NAD83(2011) ellipsoid heights using Geoid12a grids.

Process Date/Time:

2017-09-01 00:00:00

Catalog Details

Catalog Item ID:	49944
GUID:	gov.noaa.nmfs.inport:49944
Metadata Record Created By:	Anne Ball
Metadata Record Created:	2017-11-15 15:23+0000
Metadata Record Last Modified By:	SysAdmin InPortAdmin
Metadata Record Last Modified:	2022-08-09 17:11+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