Identification

Title

High-resolution lidar data for infrastructure corridors, Tanacross Quadrangle, Alaska

Abstract

In advance of design, permitting, and construction of a pipeline to deliver North Slope natural gas to out-of-state customers and Alaska communities, the Division of Geological & Geophysical Surveys (DGGS) has acquired lidar (Light Detection and Ranging) data along proposed pipeline routes, nearby areas of infrastructure, and regions where significant geologic hazards have been identified. Lidar data will serve multiple purposes, but have primarily been collected to (1) evaluate active faulting, slope instability, thaw settlement, erosion, and other engineering constraints along proposed pipeline routes, and (2) provide a base layer for the state-federal GIS database that will be used to evaluate permit applications and construction plans. The dataset represents all classified laser returns from the lidar survey and their associated geospatial coordinates.

Resource type

dataset

Resource locator

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Additional information source

This metadata file was written to document and describe, as a whole, all points classified as ground points generated for this project. For each data delivery area, reports documenting data collection methodology, accuracy, and quality control were provided by Watershed Sciences and the Oregon Department of Geology and Mineral Industries (DOGAMI). These reports have been combined into single comprehensive reports organized by delivery region. The lidar QC report (the comprehensive report from DOGAMI) and the lidar delivery report (the comprehensive report from Watershed Sciences) can be found at http://dx.doi.org/10.14509/22722. Information about the quadrangles included in individual delivery regions can be found in the lidar delivery index report included with the data download. The DGGS metadata standard extends the FGDC standard to also include several elements that are required to facilitate internal data management. These elements relate individual data items to a common dataset. This dataset describes a single layer titled: >all_points: classified laser returns from the lidar survey and their associated geospatial coordinates.

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Alaska Pipeline

Gasline

Geomorphology

Lidar

Proposed Natural Gas Pipeline

Remote Sensing

Point Cloud Data

Lidar LAS File Format

originating controlled vocabulary

title

Alaska Division of Geological & Geophysical Surveys

reference date

Keyword set

keyword value

Tanacross Quadrangle

Alaska Highway Corridor

Alaska, State of

Trans-Alaska Pipeline

originating controlled vocabulary

title

Alaska Division of Geological & Geophysical Surveys

reference date

Geographic location

West bounding longitude

-144

East bounding longitude

-141

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

2010-01-01

End position

2011-01-01

Dataset reference date

date type

publication

effective date

2012-01-01

Frequency of update

asNeeded

Quality and validity

Lineage

This lineage was generated by the FGDC CSDGM to 19139 transformation

Conformity

Data format

name of format

LAS

version of format

v.1.2

Constraints related to access and use

Constraint set

Use constraints

The State of Alaska makes no express or implied warranties (including warranties of merchantability and fitness) with respect to the character, function, or capabilities of the electronic services or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products, any failure thereof, or otherwise, and in no event will the State of Alaska's liability to the requester or anyone else exceed the fee paid for the electronic service or product.

Constraint set

Limitations on public access

Use Constraints: Any hard copies or published datasets utilizing these datasets shall clearly indicate their source. If the user has modified the data in any way, the user is obligated to describe the types of modifications the user has made. The user specifically agrees not to misrepresent these datasets, nor to imply that changes made by the user were approved by the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys. The State of Alaska makes no express or implied warranties (including warranties for merchantability and fitness) with respect to the character, functions, or capabilities of the electronic data or products or their appropriateness for any user's purposes. In no event will the State of Alaska be liable for any incidental, indirect, special, consequential, or other damages suffered by the user or any other person or entity whether from the use of the electronic services or products or any failure thereof or otherwise. In no event will the State of Alaska's liability to the Requestor or anyone else exceed the fee paid for the electronic service or product.

Constraint set

Limitations on public access

Access Constraints: The dataset(s) is (are) available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys (see contact information below).

Responsible organisations

Responsible party

contact position

GIS Data Manager/GIS Analyst

organisation name

Alaska Division of Geological & Geophysical Surveys

full postal address

3354 College Rd

Fairbanks

99709-3707

USA

telephone number

907-451-5029

email address

responsible party role

pointOfContact

Metadata on metadata

99709-3707

USA