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Short Citation:
OCM Partners, 2022: 2010 Lidar: Fairbanks North Star Borough, Alaska, https://www.fisheries.noaa.gov/inport/item/52667.

Item Identification

Title: 2010 Lidar: Fairbanks North Star Borough, Alaska
Short Name: ak2010_fairbanks_m8530_metadata
Status: Completed
Publication Date: 2010-11-18
Abstract:

The NOAA Office for Coastal Management (OCM) downloaded this lidar data from the USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/AK_Fairbanks-NSBorough_2010/ and processed the data to be available on the Digital Coast Data Access Viewer (DAV). NOAA Office for Coastal Management processed all classifications of points to the Digital Coast Data Access Viewer (DAV). Classes available on the DAV are: 1 - Unclassified, 2 - Ground, 12 - Overlap (Unclassified).

This lidar data set is for the Fairbanks North Star Borough Area and the USACE Cold Regions Research and Engineering Laboratory (CREEL) Permafrost Tunnel Research Facility in Fox, Alaska.

The following are the collection parameters and equipment used to create these data sets:

Aircraft: Cessna 320 (43Q)

lidar System: Optech ALTM Gemini (03SEN145)

Approximate Collection Altitude (Above Mean Terrain): 1400 meters

Ground Speed: 150 kts

lidar Pulse Rate Frequency: 70 kHz

Mirror Scan Frequency: 48 Hz

Scan Angle (+/-): 12 degrees

Accuracy statements are based on areas of moderate terrain, with points classified as ground. Diminished accuracies are to be expected in areas of extreme terrain and dense vegetation. The accuracy of each point is expected to meet the vertical accuracy standard, derived products may be less accurate in areas of extreme terrain and dense vegetation due to a lesser number of points defining the ground in these areas.

Classified data sets such as this one may have varying posting due to some pulses not reaching the ground.

Purpose:

The purpose of this data set is to provide a source for current and accurate digital elevation models (DEM) with vertical accuracy of 0.50 foot or better and with a nominal point spacing of 0.81 meters. This data is not recommended for design grade mapping or engineering without a ground truth survey.

Keywords

Theme Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Science Keywords
EARTH SCIENCE > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION
ISO 19115 Topic Category
elevation
UNCONTROLLED
None erosion
None Ground
None Terrain

Spatial Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Location Keywords
CONTINENT > NORTH AMERICA > UNITED STATES OF AMERICA > ALASKA
Global Change Master Directory (GCMD) Location Keywords
VERTICAL LOCATION > LAND SURFACE

Instrument Keywords

Thesaurus Keyword
UNCONTROLLED
Global Change Master Directory (GCMD) Instrument Keywords Earth Remote Sensing Instruments > Active Remote Sensing > Profilers/Sounders > Lidar/Laser Sounders > LIDAR > Light Detection and Ranging

Platform Keywords

Thesaurus Keyword
Global Change Master Directory (GCMD) Platform Keywords
AIRCRAFT

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
Maintenance Frequency: None Planned
Data Presentation Form: digital point data
Distribution Liability:

Aero-Metric, Inc. assumes no liability for the data being used for purposes other than stated in this document.

Any conclusions drawn from the analysis of this information are not the responsibility of Aero-Metric, Inc, USGS, NOAA, the Office for Coastal Management or its partners.

Data Set Credit: Aero-Metric, Inc.

Support Roles

Data Steward

CC ID: 754121
Date Effective From: 2018
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: 754122
Date Effective From: 2018
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: 754123
Date Effective From: 2018
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: 754124
Date Effective From: 2018
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: 1141311
W° Bound: -147.967
E° Bound: -147.155
N° Bound: 64.953836111
S° Bound: 64.71

Extent Group 1 / Time Frame 1

CC ID: 1141309
Time Frame Type: Discrete
Start: 2010-05-04

Extent Group 1 / Time Frame 2

CC ID: 1141310
Time Frame Type: Discrete
Start: 2010-05-06

Access Information

Security Class: Unclassified
Data Access Procedure:

Data is available online for custom and bulk 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: 754129
Start Date: 2018
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=8530
Distributor:
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.

Compression: Zip

Distribution 2

CC ID: 754130
Start Date: 2018
End Date: Present
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8530/index.html
Distributor:
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: LAZ

URLs

URL 1

CC ID: 754116
URL: https://coast.noaa.gov/
Name: NOAA's Office for Coastal Management (OCM) website
URL Type:
Online Resource
File Resource Format: HTML
Description:

Information on the NOAA Office for Coastal Management (OCM)

URL 2

CC ID: 754117
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 3

CC ID: 754118
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8530/supplemental/ak2010_fairbanks_m8530.kmz
Name: Browse graphic
URL Type:
Browse Graphic
File Resource Format: KML
Description:

This graphic displays the footprint for this lidar data set.

URL 4

CC ID: 754119
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8530/supplemental/ak2010_fairbanks_m8530_lidar_report.pdf
Name: Dataset report
URL Type:
Online Resource
File Resource Format: PDF
Description:

Link to data set report.

URL 5

CC ID: 754160
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8530/supplemental/ak2010_fairbanks_m8530_survey_report.pdf
Name: Dataset report
URL Type:
Online Resource
Description:

Link to the survey report.

URL 6

CC ID: 754161
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/8530/supplemental/ak2010_fairbanks_m8530_permafrost_tunnel_report.pdf
Name: Dataset report
URL Type:
Online Resource
Description:

Link to the Permafrost Tunnel report.

Technical Environment

Description:

Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; lidarTools 1.0.9

Data Quality

Horizontal Positional Accuracy:

All these data products were acquired at 1400 meters above mean terrain (AMT) and have a horizontal accuracy of 0.40 meters, with a nominal point spacing of 0.81 meters as per manufacturer's specifications, not field verified.

Vertical Positional Accuracy:

This value was computed by verifying the lidar data against ground surveyed points provided by DOWL/HKM. We recommend a ground truth survey of the data set. Without the ground truth survey check this data is not recommended for design grade mapping or engineering.

4 cm RMSE

This value was computed by verifying the lidar data against ground surveyed points in open terrain. Vegetated and/or sloped terrain may yield diminished accuracies.

Completeness Report:

Complete

Lineage

Process Steps

Process Step 1

CC ID: 1141301
Description:

Create a smoothed-best estimated trajectory (SBET) of the sensor at a rate of 200 Hz, by integrating the airborne GPS and IMU data.

Process Step 2

CC ID: 1141302
Description:

Integrate SBET and raw laser data to produce point cloud data in LAS 1.2 format for each flight line.

Process Step 3

CC ID: 1141303
Description:

Automated classification of the bare-earth data from the lidar point cloud using a series of algorithms customized for the types of terrain encountered in the project.

Process Date/Time: 2010-06-17 00:00:00

Process Step 4

CC ID: 1141304
Description:

Manual classification of any data which appears to be bare-earth but was not properly classified using the automated methods.

Process Step 5

CC ID: 1141305
Description:

Lidar data verified using control points, provided by DOWL/HKM along roads throughout the project area.

Process Step 6

CC ID: 1141306
Description:

Ground surveyed points collected by DOWL/HKM added to the southeast corner of project area added to lidar data. These points have been added to the las file as class 2, with sythetic point flag (bit 5) turned on.

Process Date/Time: 2010-11-18 00:00:00

Process Step 7

CC ID: 1141307
Description:

The NOAA Office for Coastal Management (OCM) downloaded this lidar data from the USGS site: ftp://rockyftp.cr.usgs.gov/vdelivery/Datasets/Staged/Elevation/LPC/Projects/AK_Fairbanks-NSBorough_2010/ and processed the data to be available on the Digital Coast Data Access Viewer (DAV). NOAA Office for Coastal Management processed all classifications of points to the Digital Coast Data Access Viewer (DAV). Classes available on the DAV are: 1 - Unclassified, 2 - Ground, 12 - Overlap (Unclassified).

OCM performed the following processing on the data for Digital Coast storage and provisioning purposes:

1. The LAStools software scripts lasinfo and lasvalidate were run on the laz files to check for errors.

2. File names were changed to replace a hyphen with an underscore.

3. An internal OCM script was run to check the number of points by classification and by flight ID and the gps and intensity ranges.

4. Data were converted from GPS seconds of the week to Adjusted GPS time using LAStools las2las.

5. Internal OCM scripts were run on the laz files to convert from orthometric (NAVD88) elevations to ellipsoid elevations using the Geoid 06 model, to convert from AK State Plane Zone 3 coordinates to geographic coordinates, to convert from elevations in feet to meters, to assign the geokeys, to sort the data by gps time and zip the data to database and to http.

Process Date/Time: 2018-05-15 00:00:00
Process Contact: Office for Coastal Management (OCM)

Catalog Details

Catalog Item ID: 52667
GUID: gov.noaa.nmfs.inport:52667
Metadata Record Created By: Rebecca Mataosky
Metadata Record Created: 2018-05-16 10:13+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