2013 UAF/GINA Lidar DEM: Arctic Coastal Plain, AK
Data Set (DS) | OCM Partners (OCMP)GUID: gov.noaa.nmfs.inport:68435 | Updated: January 10, 2024 | Published / External
Summary
Short Citation
OCM Partners, 2024: 2013 UAF/GINA Lidar DEM: Arctic Coastal Plain, AK, https://www.fisheries.noaa.gov/inport/item/68435.
Full Citation Examples
The following are the collection parameters and equipment used to create these data sets:
Aircraft: Piper Navajo (812TB)
LiDAR System: Leica ALS70
Approximate Collection Altitude (Above Mean Terrain): 1070 meters
Ground Speed: 150 kts
Pulse Rate Frequency: 245 kHz
Mirror Scan Frequency: 60 Hz
Scan Angle (+/-): 15 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.
The NOAA Office for Coastal Management (OCM) downloaded this data set from this AK DGGS site:
https://elevation.alaska.gov/
These files were processed to make the data available for custom and bulk download from the NOAA Digital Coast Data Access Viewer (DAV) . The total number of files downloaded and processed was 1804.
In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEM data were created from, are also available. These data are available for custom download at the link provided in the URL section of this metadata record.
Distribution Information
-
Create custom data files by choosing data area, map projection, file format, etc. A new metadata will be produced to reflect your request using this record as a base.
-
GeoTIFF
Bulk download of data files in the original coordinate system.
None
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be aware that temporal changes may have occurred since this data set was collected and some parts of this data may no longer represent actual surface conditions.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, DIGITAL ELEVATION/TERRAIN MODEL (DEM), elevation, TERRAIN ELEVATION
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
-151.697191444° W,
-150.880612306° E,
70.3426315° N,
70.12477725° S
2013-07-13
2013-07-12
2013-07-14
Item Identification
| Title: | 2013 UAF/GINA Lidar DEM: Arctic Coastal Plain, AK |
|---|---|
| Short Name: | ak2013_cst_pln_dem_m9660_metadata |
| Status: | Completed |
| Creation Date: | 2013 |
| Publication Date: | 2013-10-18 |
| Abstract: |
The following are the collection parameters and equipment used to create these data sets:
Aircraft: Piper Navajo (812TB) LiDAR System: Leica ALS70 Approximate Collection Altitude (Above Mean Terrain): 1070 meters Ground Speed: 150 kts Pulse Rate Frequency: 245 kHz Mirror Scan Frequency: 60 Hz Scan Angle (+/-): 15 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. The NOAA Office for Coastal Management (OCM) downloaded this data set from this AK DGGS site: https://elevation.alaska.gov/ These files were processed to make the data available for custom and bulk download from the NOAA Digital Coast Data Access Viewer (DAV) . The total number of files downloaded and processed was 1804. In addition to these bare earth Digital Elevation Model (DEM) data, the lidar point data that these DEM data were created from, are also available. These data are available for custom download at the link provided in the URL section of this metadata record. |
| Purpose: |
The purpose of this data set is to provide LiDAR-derived topographic data for transportation planning and road construction. |
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 > LAND SURFACE > TOPOGRAPHY > TERRAIN ELEVATION > DIGITAL ELEVATION/TERRAIN MODEL (DEM)
|
| Global Change Master Directory (GCMD) Science Keywords |
EARTH SCIENCE > OCEANS > COASTAL PROCESSES > COASTAL ELEVATION
|
| ISO 19115 Topic Category |
elevation
|
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 > ALASKA
|
| Global Change Master Directory (GCMD) Location Keywords |
VERTICAL LOCATION > LAND SURFACE
|
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 |
| Maintenance Frequency: | None Planned |
| Data Presentation Form: | Model (digital) |
| Distribution Liability: |
AeroMetric 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 NOAA, the Office for Coastal Management or its partners. |
| Data Set Credit: | AeroMetric |
Support Roles
Data Steward
| Date Effective From: | 2022 |
|---|---|
| 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
| Date Effective From: | 2022 |
|---|---|
| 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
| Date Effective From: | 2022 |
|---|---|
| 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
| Date Effective From: | 2022 |
|---|---|
| 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
| W° Bound: | -151.697191444 | |
|---|---|---|
| E° Bound: | -150.880612306 | |
| N° Bound: | 70.3426315 | |
| S° Bound: | 70.12477725 |
Extent Group 1 / Time Frame 1
| Time Frame Type: | Discrete |
|---|---|
| Start: | 2013-07-13 |
Extent Group 1 / Time Frame 2
| Time Frame Type: | Discrete |
|---|---|
| Start: | 2013-07-12 |
Extent Group 1 / Time Frame 3
| Time Frame Type: | Discrete |
|---|---|
| Start: | 2013-07-14 |
Spatial Information
Spatial Representation
Representations Used
| Grid: | Yes |
|---|
Reference Systems
Reference System 1
Coordinate Reference System |
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Reference System 2
Coordinate Reference System |
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Access Information
| Security Class: | Unclassified |
|---|---|
| Data Access Procedure: |
Data is available online for bulk and 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
| Start Date: | 2022-11-16 |
|---|---|
| End Date: | Present |
| Download URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9660/details/9660 |
| Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2022 - Present) |
| File Name: | Customized Download |
| Description: |
Create custom data files by choosing data area, map projection, file format, 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
| Start Date: | 2022-11-16 |
|---|---|
| End Date: | Present |
| Download URL: | https://noaa-nos-coastal-lidar-pds.s3.us-east-1.amazonaws.com/dem/AK_Coastal_Plain_DEM_2013_9660/index.html |
| Distributor: | NOAA Office for Coastal Management (NOAA/OCM) (2022 - Present) |
| File Name: | Bulk Download |
| Description: |
Bulk download of data files in the original coordinate system. |
| File Type (Deprecated): | GeoTIFF |
| Distribution Format: | GeoTIFF |
URLs
URL 1
| 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
| 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
| URL: | https://noaa-nos-coastal-lidar-pds.s3.amazonaws.com/laz/geoid12b/9658/supplemental/ak2013_cst_plain_m9658.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
| URL: | https://coast.noaa.gov/dataviewer/#/lidar/search/where:ID=9658/details/9658 |
|---|---|
| Name: | Custom Point Download |
| URL Type: |
Online Resource
|
| File Resource Format: | Zip |
| Description: |
Link to custom download, from the Data Access Viewer (DAV), the lidar point data from which these raster Digital Elevation Model (DEM) data were created. |
Technical Environment
| Description: |
Microsoft Windows 2000 Version 5.0 (Build 2195) Service Pack 4; LiDARTools 1.0.9 |
|---|
Data Quality
| Horizontal Positional Accuracy: |
Data products collected were acquired at or below 1070 meters above mean terrain (AMT) and have a horizontal accuracy of 0.2 meters or better (per manufacturers system specifications) . |
|---|---|
| Vertical Positional Accuracy: |
The vertical accuracy of the Classified Bare Earth for Arctic Coastal Plain is 0.145 US Survey Meters at a 95% confidence level (RMSE*1.96 (95% CI - NSSDA)) in the "Open Terrain" land cover category. 910 survey control points were used for the Arctic Coastal Plain data. |
| Completeness Report: |
Complete |
| Conceptual Consistency: |
QAQC ground survey points were collected by GPS Inc. along the Nuiqsut roads, river and lake edges within the project area. |
Lineage
| Lineage Statement: |
The data were collected for the Alaska Division of Geological and Geophysical Surveys (DGGS) and made available on the AK DGGS Elevation Portal (https://elevation.alaska.gov/). The NOAA Office for Coastal Management (OCM) downloaded the data from this site to make the data available for custom downloads from the NOAA Digital Coast Data Access Viewer and for bulk downloads from https. |
|---|
Sources
Alaska Division of Geological and Geophysical Surveys (AK DGGS)
| Contact Role Type: | Publisher |
|---|---|
| Contact Type: | Organization |
| Contact Name: | AK DGGS |
| Citation URL: | https://elevation.alaska.gov/ |
| Citation URL Name: | AK DGGS Elevation Portal |
Process Steps
Process Step 1
| Description: |
Created a smoothed-best estimated trajectory (SBET) of the sensor at a rate of 200 Hz, by integrating the airborne GPS and IMU data The basis of the GPS coordinates were two dual frequency GPS receivers, collecting data at a rate of 2 Hz operated by Aero-Metric during the acquisition phase of this project, and were referenced to NAD83 (CORS96) ellipsoid heights. |
|---|---|
| Process Date/Time: | 2013-08-01 00:00:00 |
Process Step 2
| Description: |
Integrated SBET and raw laser data to produce point cloud data in LAS 1.2 format for each flight line. |
|---|---|
| Process Date/Time: | 2013-08-18 00:00:00 |
Process Step 3
| Description: |
Processed data calibration: An in-situ calibration was performed using the data collect for this project. The data was classified in each line separately for ground and other common features between lines, such as building roofs. This data was processed in TerraMatch 11.001 (TerraSolid, Ltd.), to compute corrections for roll, pitch, heading, and mirror scale. These corrections are applied in order to minimize discrepancies between flight lines. |
|---|---|
| Process Date/Time: | 2013-08-22 00:00:00 |
Process Step 4
| 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: | 2013-08-24 00:00:00 |
Process Step 5
| Description: |
Manually classified any data which appears to be improperly classified using the automated methods. |
|---|---|
| Process Date/Time: | 2013-10-17 00:00:00 |
Process Step 6
| Description: |
Created hydro enforced 1 meter resolution bare earth DEMs in GeoTIFF format with world files, using bare earth LAS data. |
|---|---|
| Process Date/Time: | 2013-09-12 00:00:00 |
Process Step 7
| Description: |
The NOAA Office for Coastal Management (OCM) downloaded 1804 raster DEM files in GeoTiff format from the Alaska DGGS Elevation Portal. The data were in AK State Plane Zone 4 NAD83 (2011), meters coordinates and NAVD88 (Geoid12A) elevations in meters. The bare earth raster files were at a 1 meter grid spacing. OCM performed the following processing on the data for Digital Coast storage and provisioning purposes: 1. Used an internal script to assign the EPSG codes (Horizontal EPSG: 6397 and Vertical EPSG: 5703) to the GeoTiff formatted files. 2. Copied the files to https. |
|---|---|
| Process Date/Time: | 2022-11-16 00:00:00 |
| Process Contact: | Office for Coastal Management (OCM) |
Related Items
| Item Type | Relationship Type | Title |
|---|---|---|
| Data Set (DS) | Cross Reference |
2013 UAF/GINA Lidar: Arctic Coastal Plain, AK |
Catalog Details
| Catalog Item ID: | 68435 |
|---|---|
| GUID: | gov.noaa.nmfs.inport:68435 |
| Metadata Record Created By: | Rebecca Mataosky |
| Metadata Record Created: | 2022-11-16 15:05+0000 |
| Metadata Record Last Modified By: | Kirk Waters |
| Metadata Record Last Modified: | 2024-01-10 19:28+0000 |
| Metadata Record Published: | 2024-01-10 |
| Owner Org: | OCMP |
| Metadata Publication Status: | Published Externally |
| Do Not Publish?: | N |
| Metadata Last Review Date: | 2022-11-16 |
| Metadata Review Frequency: | 1 Year |
| Metadata Next Review Date: | 2023-11-16 |