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

Dataset Identification:

Resource 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. This digital surface model (mean_DSM) represents mean above-ground height of vegetation returns.
Citation
Title High-resolution lidar data for infrastructure corridors, Fairbanks Quadrangle, Alaska
publication  Date   2011-01-01
presentationForm  mapDigital
Series
Name Raw Data File
Issue RDF 2011-3E
cited responsible party - publisher
organisation Name  State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Contact information
Address
, Fairbanks, Alaska USA
cited responsible party - originator
organisation Name  Hubbard, T.D.
cited responsible party - originator
organisation Name  Braun, M.L.
cited responsible party - originator
organisation Name  Westbrook, R.E.
cited responsible party - originator
organisation Name  Gallagher, P.E.
cited responsible party - originator
organisation Name  Hubbard, T.D.
cited responsible party - originator
organisation Name  Koehler, R.D.
cited responsible party - originator
organisation Name  Combellick, R.A.
cited responsible party -
organisation Name  
Contact information
Linkage for online resource
URL: http://www.dggs.alaska.gov/pubs/id/22727
Topic Category:  geoscientificInformation
Keywords:
Theme keywords (theme):
Alaska Pipeline
Gasline
Geomorphology
Lidar
Proposed Natural Gas Pipeline
Remote Sensing
Raster Image
Digital Surface Model (DSM)
Mean Vegetation Elevation (DSM)
Vegetation Metric
thesaurus name >
Title Alaska Division of Geological & Geophysical Surveys
Location keywords:
Fairbanks Quadrangle
Alaska Highway Corridor
Alaska, State of
Trans-Alaska Pipeline
thesaurus name >
Title Alaska Division of Geological & Geophysical Surveys
purpose:
Provide high resolution land cover data for use in vegetation classification and analysis.
Resource language:  eng; USA
Resource progress code:  completed
Resource Maintenance Information
maintenance or update frequency:  asNeeded
Constraints on resource usage:
Constraints
Use limitation statement:
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 requestor or anyone else exceed the fee paid for the electronic service or product.
Constraints on resource usage:
Legal Constraints
use constraint:  otherRestrictions
Other constraints
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.
Constraints on resource usage:
Legal Constraints
Access Constraints  otherRestrictions
Other constraints
Access Constraints: This dataset is available directly from the State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys.
Spatial representation type code:  grid
Processing environment:  Native Dataset Environment: Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 3; ESRI ArcCatalog 9.3.1.3000
Resource extent
Geographic Extent
Geographic Bounding Box
westBoundLongitude  -150
eastBoundLongitude  -147
northBoundLatitude  65
southBoundLatitude  64
Temporal Extent
2010-01-01 2011-01-01
Additional information on resource:
This metadata file was written to document and describe, as a whole, all of the mean_DSM files generated for this project. The mean_DSM download package also includes the original metadata provided by Watershed Sciences, Inc. These metadata files may provide additional useful information that is specific to each file. The metadata files provided by Watershed Sciences, Inc. have not been reviewed for accuracy or compliance with FGDC standards. In addition to information found in the metadata files, specific information about accuracy and quality of lidar data can be found in quality control reports provided by DOGAMI and delivery reports provided by Watershed Sciences, Inc. Individual reports were provided for each delivery set and have been combined by DGGS into comprehensive quality control and delivery reports. These documents are organized according to how data were delivered to DGGS. A description of information pertaining to downloadable files can be found in the quality control and delivery reports. The DGGS metadata standard extends the FGDC standard to also include several elements that are required to facilitate our internal data management. These elements relate individual data items to a common dataset. This dataset describes a single layer titled: >mean_elev: mean vegetation-elevation digital surface model
Credits:
Data collection was supported by funding from the Department of Natural Resources (DNR), Division of Geological & Geophysical Surveys (DGGS), the Alaska Gas Pipeline Project Office, the Office of the Federal Coordinator, and the Alaska Gasline Development Corporation (AGDC). Lidar data were collected and processed by Watershed Sciences, Inc. of Corvallis, OR. Survey data were collected by McClintock Land Associates of Eagle River, AK. Lidar data and derivative products were checked for quality, completeness, and accuracy by State of Oregon Department of Geology & Mineral Industries based in Portland, OR.
point of contact - pointOfContact
individual Name James Weakland
organisation Name  Alaska Division of Geological & Geophysical Surveys
position Name GIS Analyst
Contact information
Telephone
Voice 907-451-5029
Voice 907-451-5020
Address
3354 College Rd, Fairbanks, AK, 99709-3707 Country USA
electronic Mail Address dggsgis@alaska.gov
hoursOfService 8 am to 4:30 pm, Monday through Friday, except State holidays
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Grid spatial representation

number of grid dimensions: 0
Grid axis property:
cell geometry type:  area
transformation parameter availability: 
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Coverage description

Type of coverage content 
Cell value attribute description:  
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Content information: feature catalog description

Included With Dataset  true
Feature Types  
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Scope of quality information
scope level  dataset
Resource lineage description
source
source description  Source Contribution: Contains information about FUSION/LDV softwareSource Type paper
source citation
Title Fusion/LDV: Software for LIDAR data analysis and visualization
publication  Date   2007-01-01
presentationForm  SOFTWARE
other Citation Details  p. 28-30
cited responsible party - publisher
organisation Name  USDA Forest Service
Contact information
Address
, Pacific Northwest Research Station
cited responsible party - originator
organisation Name  McGaughey, R.J.
Resource extent
Temporal Extent
2007-01-01
AbsoluteExternalPositionalAccuracy
name Of Measure Horizontal Positional Accuracy Report
evaluation Method Description  True horizontal accuracy is regarded as a product of the lidar ground footprint. Lidar is referenced to co-acquired GPS base station data that have accuracies far greater than the value of the lidar footprint. The ground footprint is equal to 1/3333rd of the above-ground flying height. The ground footprint for data collected for this project exceeds typical accuracy of ground control used to reference the lidar data (less than 0.01 meters). Project specifications require the lidar footprint to be between 0.15 and 0.40 meters. Refer to the lidar QC report and lidar delivery report for additional information on horizontal accuracy for individual delivery areas.
AbsoluteExternalPositionalAccuracy
name Of Measure Vertical Positional Accuracy Report
evaluation Method Description  Vertical accuracy refers to the elevation difference between measured GPS control data and lidar digital elevation models. Project specifications require the root mean square vertical offset to be less than 0.2 meters. The mean_DSM represents an average vegetation surface elevation where the vertical accuracy is a function of the accuracy of the bare-earth digital elevation model and the accuracy of lidar vegetation elevation returns. For this dataset all buildings and man-made structures were omitted from analysis. Please see the lidar QC report and delivery report for specific information about accuracy and quality of lidar data.
Completeness Commission
evaluation Method Description  Lidar data have been checked for accuracy and completeness. Please refer to the lidar delivery report and lidar QC report for details about data accuracy completeness for individual delivery sets.
Completeness Omission
evaluation Method Description  Lidar data have been checked for accuracy and completeness. Please refer to the lidar delivery report and lidar QC report for details about data accuracy completeness for individual delivery sets.
ConceptualConsistency
measure Description  Lidar data have been examined to ensure that overlapping flight lines have consistent elevation values. Project specifications require that lidar consistency, measured as vertical offsets between adjacent flight lines, must average less than 0.15 meters. Refer to the lidar QC report and the lidar delivery report for statistics from consistency analyses for individual delivery sets. Flight lines have been examined to ensure that there was at least 60% sidelap and that there are no data gaps. Shaded relief, lidar slope, and bare-earth digital elevation model (DEM) images have been visually inspected for data errors such as pits, border artifacts, gaps, and shifting. All file naming conventions and formats have been checked for consistency and all grids were loaded and inspected for outlier mean vegetation height values and also inspected to ensure no cell values are less than zero.

Resource distribution information

Distributor
distributor contact - distributor
organisation Name  State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys
Contact information
Telephone
Voice 907-451-5020
Fax 907-451-5050
Address
3354 College Road, Fairbanks, AK, 99709-3707 Country USA
electronic Mail Address dggspubs@alaska.gov
hoursOfService 8 am to 4:30 pm, Monday through Friday, except State holidays
contact Instructions
Please view our website (http://www.dggs.alaska.gov) for the latest information on available data. Please contact us using the e-mail address provided above when possible.
Standard ordering process
fees contact DGGS for current pricing
Standard ordering process
fees Free download
Format
Format name GRID
Format version 
Digital Transfer Options
Linkage for online resource
URL: http://www.dggs.alaska.gov/pubs/id/22727

Metadata data stamp:  2012-05-15
Resource Maintenance Information
maintenance or update frequency:  annually
notes: This metadata was automatically generated from the FGDC Content Standard for Digital Geospatial Metadata standard (version FGDC-STD-001-1998) using the 2012-06-20T17:21:00 version of the FGDC RSE to ISO 19115-2 transform.
Metadata Constraints
Legal Constraints
Access Constraints  otherRestrictions
Other constraints
Metadata Use Constraints: If the user has modified this metadata file in any way, the user is obligated to describe the types of modifications the user has made. User specifically agrees not to misrepresent this metadata file, 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.
Metadata contact - pointOfContact
individual Name Metadata manager
Contact information
Telephone
Voice 907-451-5020
Address
State of Alaska, Department of Natural Resources, Division of Geological & Geophysical Surveys, Fairbanks, AK, 99709-3707 Country USA
Metadata scope code  dataset
Metadata language  eng; USA
Metadata character set encoding:   utf8
Metadata standard for this record:  ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data
standard version:  ISO 19115-2:2009(E)
Metadata record identifier:  67847700-7f73-41f2-9e51-c31627784efb

Metadata record format is ISO19139-2 XML (MI_Metadata)