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Short Citation:
OCM Partners, 2022: 2009 USGS Lidar: North Slope, Alaska, https://www.fisheries.noaa.gov/inport/item/52806.

Item Identification

Title: 2009 USGS Lidar: North Slope, Alaska
Short Name: ak2009_northslope_m5088_metadata
Status: Completed
Publication Date: 2015
Abstract:

This metadata record describes the unclassified, last return, point cloud data for the 2009 USGS North Slope of Alaska lidar project. This record was created by the NOAA Office for Coastal Management (OCM) because no metadata record or data report were available for the data. Information to create this record was found here: https://topotools.cr.usgs.gov/posters/arctic_coast_alaska.pdf and from the tile metadata for AK_Coastal_2009_000001 at USGS EarthExplorer.

This 2009 data set is part of the USGS assessment of coastal change hazards, over 11,000 km2 of airborne lidar elevation data were collected along the Arctic coast of Alaska between 2009 and 2012. Data coverage includes the barrier islands and mainland coast between Icy Cape and the U.S.–Canadian border, from the shoreline to ~1.5 km inland. Data coverage extends further inland to around 3 km on the Barrow Peninsula and along the coast of the Teshekpuk Lake Special Area (TLSA) where coastal erosion rates are among the highest in the world (> 18 m/yr). Nominal point density is 1.5 m and vertical accuracy is better than 30 cm. Data were not collected over most river deltas or large embayments, with the exception of Admiralty Bay, Smith Bay (Ikpikpik Delta), Kogru River, and the Fish Creek portion of Colville River Delta. The primary use of the lidar data is to establish a modern shoreline position to be used for change analyses with historical shoreline positions. However, the lidar DEM provides a wealth of topographic and intensity data that can be used for morphological mapping of the remote arctic coast.

This is one of the first comprehensive lidar datasets collected in a continuous permafrost environment. Many periglacial landscape features, such as patterned ground, ice-wedge polygons, and thermokarst lakes and former lake basins (recent and relict) are discernible in the dataset. Traditional coastal landscape features including shoreline position, beach width, slope, and bluff height and morphology are also distinct.

Acquired by Aerometric, Alaska; Funded by USGS National Geospatial Program, Coastal and Marine Geology Program, Alaska Science Center; U.S. Fish and Wildlife Service, Arctic Landscape Conservation Cooperative; U.S. Bureau of Land Management

The NOAA Office for Coastal Management (OCM) downloaded this lidar data from the AK DGGS site (https://elevation.alaska.gov/) and processed the data to be available on the Digital Coast Data Access Viewer (DAV). (There were 33 files from the AK DGGS UTM Zone 7 folder that were not processed. These files were pilot tiles and were referenced to WGS84. These pilot tiles are available from the DAV as a separate mission).

Purpose:

The primary use of the lidar data is to establish a modern shoreline position to be used for change analyses with historical shoreline positions.

Keywords

Theme Keywords

Thesaurus Keyword
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
ISO 19115 Topic Category
elevation
UNCONTROLLED
None beach
None erosion
None Intensity
None mapping
None point cloud

Temporal Keywords

Thesaurus Keyword
UNCONTROLLED
None 2009
None August
None September

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: Unknown
Data Presentation Form: point digital data (LAS)
Distribution Liability:

Any conclusions drawn from the analysis of this information are not the responsibility of AK DGGS, USGS, NOAA, the Office for Coastal Management or its partners.

Data Set Credit: USGS

Support Roles

Data Steward

CC ID: 756237
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: 756238
Date Effective From: 2018
Date Effective To:
Contact (Organization): Office for Coastal Management (OCM)
Address: 2234 South Hobson Avenue
Charleston, SC 29405-2413
URL: https://www.coast.noaa.gov/

Metadata Contact

CC ID: 756239
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: 756240
Date Effective From: 2018
Date Effective To:
Contact (Organization): Office for Coastal Management (OCM)
Address: 2234 South Hobson Avenue
Charleston, SC 29405-2413
URL: https://www.coast.noaa.gov/

Extents

Currentness Reference: Ground Condition

Extent Group 1

Extent Group 1 / Geographic Area 1

CC ID: 1138051
W° Bound: -145.884
E° Bound: -140.962
N° Bound: 70.166
S° Bound: 69.612

Extent Group 1 / Time Frame 1

CC ID: 1138050
Time Frame Type: Range
Start: 2009-08-29
End: 2009-09-05

Access Information

Security Class: Unclassified
Data Access Procedure:

Data is available online for custom or 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: 756241
Start Date: 2018
End Date: Present
Download URL: https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=5088
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: 756242
Start Date: 2018
End Date: Present
Download URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/5088/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: 756243
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: 756244
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: 756245
URL: https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/5088/supplemental/ak2009_northslope_m5088.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: 756246
URL: https://topotools.cr.usgs.gov/posters/arctic_coast_alaska.pdf
URL Type:
Online Resource
Description:

2013 AGU Fall Meeting, Remote Sensing of the Arctic Coast of Alaska Using Airborne Lidar Data

Technical Environment

Description:

Microsoft Windows 7; ESRI ArcCatalog 9.3.1.1850

Data Quality

Horizontal Positional Accuracy:

Not provided

Vertical Positional Accuracy:

14 cm RMSE

Lineage

Sources

Originator

CC ID: 1138047

Process Steps

Process Step 1

CC ID: 1138048
Description:

The NOAA Office for Coastal Management (OCM) downloaded 274 laz files from the Alaska Division of Geological and Geophysical Surveys data Portal (https://elevation.alaska.gov/). (There were 33 files from the AK DGGS UTM Zone 7 folder that were not processed. These files were pilot tiles and were referenced to WGS84. These pilot tiles are available from the Data Access Viewer as a separate mission). The files contained unclassified (last return) elevation and intensity measurements for the 2009 North Slope AK data set. The data were in UTM Zones 6 and 7 coordinates and ellipsoid (GRS80) elevations in meters. The data were unclassified last returns. The NOAA Office for Coastal Management processed all points to the Digital Coast Data Access Viewer (DAV).

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

3. Internal OCM scripts were run on the laz files to convert from UTM 6 and 7 coordinates to geographic coordinates, to assign the geokeys, to sort the data by gps time and zip the data to database and to http.

Process Date/Time: 2018-06-01 00:00:00
Process Contact: Office for Coastal Management (OCM)

Catalog Details

Catalog Item ID: 52806
GUID: gov.noaa.nmfs.inport:52806
Metadata Record Created By: Rebecca Mataosky
Metadata Record Created: 2018-06-01 13:11+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