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Short Citation:
OCM Partners, 2022: 2007 Bureau of Land Management (BLM) Lidar: Panther Creek Watershed, Yamhill County, https://www.fisheries.noaa.gov/inport/item/49898.

Item Identification

Title: 2007 Bureau of Land Management (BLM) Lidar: Panther Creek Watershed, Yamhill County
Short Name: or2007_panther_creek_m81_metadata
Status: Completed
Publication Date: 2007
Abstract:

The dataset represents LiDAR elevations acquired during a leaf-off and a leaf-on vegetative condition for the Upper Panther

Creek Watershed in the Yamhill County study area in Oregon. The date of collection for the leaf off data is 20071208.

The date of collection for the leaf on data is 20070903. The area of interest covers ~5577 acres (~8.71 sq miles).

The LiDAR survey utilized a Leica ALS50 Phase II laser mounted in a Cessna Caravan 208B set to acquire greater than or

equal to 105,000 pulses per second (i.e. 105 kHz pulse rate). The scan angle was plus or minus 14 degrees from nadir.

These settings are designed to yield an average native density (number of pulses emitted by the laser system) of greater

than or equal to 8 points per square meter over terrestrial surfaces. LiDAR intensity values were also collected. In some

areas of heavy vegetation or forest cover, there may be relatively few ground points in the LiDAR data. Elevation values

for open water surfaces are not valid elevation values because few LiDAR points are returned from water surfaces.

Watershed Sciences, Inc. collected the LiDAR and created this data set for the Bureau of Land Management.

Original contact information:

Contact Name: Ian Madin

Contact Org: Oregon Department of Geology and Mineral Industries (DOGAMI)

Phone: 971-673-1542

Email: ian.madin@dogami.state.or.us

Purpose:

Provide high resolution terrain elevation and land cover elevation data.

Notes:

10542

Supplemental Information:

The report for The LiDAR Remote Sensing Data Collection: Yamhill County, Oregon may be viewed at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/81/supplemental/Yamhill_BLM_LiDAR_Report.pdf

Keywords

Theme Keywords

Thesaurus Keyword
ISO 19115 Topic Category
elevation
UNCONTROLLED
None Bare earth
None Bare ground
None Bureau of Land Management
None High-resolution
None Leaf off
None Leaf on
None Light Detection and Ranging

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 Bureau

of Land Management, the Office for Coastal Management, or its partners.

Data Set Credit: Bureau of Land Management

Support Roles

Data Steward

CC ID: 682442
Date Effective From: 2007
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: 682444
Date Effective From: 2007
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: 682445
Date Effective From: 2007
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: 682443
Date Effective From: 2007
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: 1140440
W° Bound: -123.402927
E° Bound: -123.318967
N° Bound: 45.319222
S° Bound: 45.273033

Extent Group 1 / Time Frame 1

CC ID: 1140438
Time Frame Type: Discrete
Start: 2007-09-03

Extent Group 1 / Time Frame 2

CC ID: 1140439
Time Frame Type: Discrete
Start: 2007-12-08

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

The data set is dynamically generated based on user-specified parameters.

;

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: 741964
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=81
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: 741965
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/81/index.html
Distributor:
File Name: Bulk Download
Description:

Simple download of data files.

URLs

URL 1

CC ID: 741967
URL: https://coast.noaa.gov/dataviewer
URL Type:
Online Resource

URL 2

CC ID: 741968
URL: https://coast.noaa.gov
URL Type:
Online Resource

Activity Log

Activity Log 1

CC ID: 682470
Activity Date/Time: 2016-05-23
Description:

Date that the source FGDC record was last modified.

Activity Log 2

CC ID: 682469
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: 718479
Activity Date/Time: 2018-02-08
Description:

Partial upload of Positional Accuracy fields only.

Activity Log 4

CC ID: 741966
Activity Date/Time: 2018-03-13
Description:

Partial upload to move data access links to Distribution Info.

Technical Environment

Description:

Microsoft Windows 2000 Version 5.2 (Build 3790) Service Pack 2; ESRI ArcCatalog 9.2.0.1324

Data Quality

Horizontal Positional Accuracy:

1/4500th Above Ground Level (AGL).

For more information, please refer to the report for The LiDAR Remote Sensing Data Collection: Yamhill County, Oregon at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/81/supplemental/Yamhill_BLM_LiDAR_Report.pdf

Vertical Positional Accuracy:

The Root Mean Square Error (RMSE) of the data set is 0.02 meters. Accuracy was

assessed using 524 ground survey (real time kinematic) points.

For more information, please refer to the report for The LiDAR Remote Sensing Data Collection: Yamhill County, Oregon at:

https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid18/81/supplemental/Yamhill_BLM_LiDAR_Report.pdf

Completeness Report:

LiDAR data has been collected and processed for all areas within the project study area.

Conceptual Consistency:

LiDAR flight lines have been examined to ensure that there was at least 75% sidelap, there are no gaps between flightlines,

and overlapping flightlines have consistent elevation values.

Shaded relief images have been visually inspected for data errors such as pits, border artifacts, gaps, and shifting. The

data was examined at a 1:3500 scale.

Lineage

Process Steps

Process Step 1

CC ID: 1140434
Description:

Acquisition.

The LiDAR data was collected on December 8, and September 3, 2007. A Leica ALS50 Phase II LiDAR system was mounted in a

fixed-wing aircraft. Near nadir scan angles were used to increase penetration of vegetation to ground surfaces. Ground

level GPS and aircraft IMU were collected during the flight.

Process Date/Time: 2007-01-01 00:00:00

Process Step 2

CC ID: 1140435
Description:

Processing.

1. Flight lines and data were reviewed to ensure complete coverage of the study area and positional accuracy of the laser

points.

2. Laser point return coordinates were computed using the ALS Post Processing software suite and IPAS Pro software based

on independent data from the LiDAR system, IMU, and aircraft.

3. The raw LiDAR file was assembled into flight lines per return with each point having an associated x, y, and z coordinate.

4. Visual inspection of swath to swath laser point consistencies within the study area were used to perform manual refinements

of system alignment.

5. Custom algorithms were designed to evaluate points between adjacent flight lines. Automated system alignment was computed

based upon randomly selected swath to swath accuracy measurements that consider elevation, slope, and intensities.

Specifically, refinement in the combination of system pitch, roll and yaw offset parameters optimize internal consistency.

6. Noise (e.g., pits and birds) was filtered using ALS postprocessing software, based on known elevation ranges and included

the removal of any cycle slips.

7. Using TerraScan and Microstation, ground classifications utilized custom settings appropriate to the study area.

8. The corrected and filtered return points were compared to the RTK ground survey points collected to verify the vertical

and horizontal accuracies.

9. Points were exported as laser points, TINed and GRIDed surfaces.

Process Date/Time: 2007-01-01 00:00:00

Process Step 3

CC ID: 1140436
Description:

The NOAA Office for Coastal Management (OCM) received the files in las format. The files contained Lidar

elevation and intensity measurements. The data was in UTM Projection, Zone 10N and NAVD88 Geoid 03 vertical datum. OCM

performed the following processing to the data to make it available within the LDART Retrieval Tool (LDART):

1. The data were converted from UTM coordinates to geographic coordinates.

2. The data were converted from NAVD88 (orthometric) heights to GRS80 (ellipsoid) heights using Geoid 03.

3. The LAS data were sorted by latitude and the headers were updated.

Process Date/Time: 2008-07-17 00:00:00

Catalog Details

Catalog Item ID: 49898
GUID: gov.noaa.nmfs.inport:49898
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