Importance of Detailed Terrain and Geohazard Information for Pipeline and Infrastructure Developments in Arctic Environments
- Dennis O'Leary (Golder Associates Ltd) | Andrew Garrigus (Golder Associates Ltd) | Thomas Krzewinski (Golder Associates Ltd)
- Document ID
- Offshore Technology Conference
- OTC Arctic Technology Conference, 5-7 November, Houston, Texas, USA
- Publication Date
- Document Type
- Conference Paper
- 2018. Offshore Technology Conference
- Geologic Mapping, Geohazard, Pipeline Routing, Terrain Analyses
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Pipelines and roads represent the arteries of the oil and gas, and mining and transportation industries, respectively. They move product from remote locations to more centralized locations, either for processing or for shipping to refineries and mills for subsequent processing. Proper infrastructure development is critical to the successful development of the sensitive Arctic environment especially true in light of ongoing climate change where the melting of permafrost poses significant issues for development in the Arctic. The harsh Arctic environment presents unique challenges that are not found in more southern latitudes for the oil and gas and transportation sectors, including permafrost and permafrost degradation. It is well acknowledged that the extent of permafrost in northern environments is poorly known and mapped.
New tools are being used to help determine the extent of permafrost and to identify areas that are more susceptible to permafrost degradation in light of on-going and future development. One such tool is the use of softcopy mapping to help map terrain and geological modifying processes such as permafrost. Softcopy uses traditional stereo aerial photographs in a digital environment to allow scientists the ability to view the landscape at scales of 1:1,000 from traditional aerial photography that were captured at scales of 1:24,000 to 1:40,000. The advantage of softcopy is that by being able to zoom down to such large scales allows terrain scientists the ability to better determine the soil types (sand, silt or clay), drainage conditions (rapid to very poor) and on-going geological processes such as permafrost as evidenced by frost boils and permafrost degradation as evidenced by presence of thermokarst and thaw slides. Another method often utilized where stereo aerial photography is not available is use of remote sensing datasets such high resolution digital elevation models and satellite imagery which are becoming general available in Arctic regions. These elevation models are used to create hillshade images of varying aspects and photorealistic 3D models to help map terrains.
This paper will present a number of examples of where such mapping has been used to assist in pipeline and infrastructure planning in Alaska and Canada's north.
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Alaska Department of Transportation and Public Facilities. http://dot.alaska.gov/FAQ.shtml. Accessed August 23, 2018.
Alaska Oil and Gas Association. https://www.aoga.org/facts-and-figures. Accessed August 24, 2018.
ArcticDEM, DEM(s) created from DigitalGlobe, Inc., imagery and funded under National Science Foundation awards 1043681, 1559691, and 1542736." https://www.pgc.umn.edu/guides/arcticdem/additional-information/.
Bird, H. 2017. As Inuvik-Tuktoyaktuk Highway opens, will the $300M price tag be worth it. https://www.cbc.ca/news/canada/north/inuvik-tuktoyaktuk-nwt-road-worth-it-1.4395052. CBC News, November 13, 2017. Accessed August 27, 2018.
CBC News. 2017. https://www.cbc.ca/news/canada/north/thawing-permafrost-causes-51m-in-damages-every-year-to-n-w-t-public- infrastructure-study-1.4408395. Nov 20, 2017. Accessed August 26, 2018.
Holubec Consulting. 2008. Flat Loop Thermosyphon Foundations in Warm Permafrost. Report prepared for Government of NT Asset Management Division, Public Works and Services and the Canadian Council of Professional Engineers. www.pws.gov.nt.ca/pdf/publication/Thermosyphon%20Foundations%20in%20warm%20permafrost%20.pdf.
Jorgenson, T.,K. Yoshikawa,M. Kanevskiyet al. 2008. Permafrost Characteristics of Alaska. 1:7,200,000 scale. Institute of Northern Engineering, University of Alaska Fairbanks. https://www.epa.gov/sites/production/files/2017-09/documents/ak- state_attachment_2017-06-19.pdf. Accessed August 25, 2018.
Natural Resources Canada. 2018. http://www.nrcan.gc.ca/energy/infrastructure/pipeline-safety-regime/16449. Accessed August 25, 2018.
Natural Resources Canada. Permafrost. https://www.google.com/search?ei=WSmEW9PsOc2b_QbrxLa4Bw&q=permafrost+zones+canada. Accessed August 26, 2018.
Northwest Territories Industry, Tourism and Investment. https://www.iti.gov.nt.ca/en/oil-gas. Accessed August 25, 2018.
Pipeline Facts. http://www.alyeska-pipe.com/TAPS/PipelineFacts. Accessed August 24, 2018.
Reuters. 2011. Factbox: How much is 60 million barrels of oil. June 23, 2011. https://www.reuters.com/article/us-iea-oil/factbox-how- much-is-60-million-barrels-of-oil-idUSTRE75M6S520110623. Accessed August 27, 2018.
Soloman, C. 2018. Alaska wants to build a second 800-mile pipeline. https://www.outsideonline.com/2309006/alaska-wants-build-second-800-mile-pipeline
Trans-Alaskan Pipeline Facts. Stakeholders Resources Site. http://akpipelinesafety.org/pipeline-facts. Accessed August 27, 2018.
United States Census Bureau. 2010. State and county quickfacts: Fairbanks North Star Borough, Alaska. Washington, DC. Online at http://quickfacts.census.gov/qfd/states/02/02090.html. Accessed August 27, 2018.
United States Environmental Protection Agency (EPA). Climate Change Impacts. https://19january2017snapshot.epa.gov/climate- impacts/climate-impacts-alaska_.html. Accessed August 15, 2018.
Wikipedia. 2018. Highways in Nunavut. https://en.wikipedia.org/wiki/Highways_in_Nunavut. Accessed August 26, 2018.
Wikipedia. 2018. Highways in Northwest Territories. https://en.wikipedia.org/wiki/List_of_Northwest_Territories_highways. Accessed August 26, 2018.
Wikipedia. 2018. Highways in Yukon. https://en.wikipedia.org/wiki/List_of_Yukon_territorial_highways. Accessed August 26, 2018.
Yukon Environment. 2018. Climate Change and Yukon. http://www.env.gov.yk.ca/air-water-waste/climatechange.php. Accessed August 26, 2018.
Yukon Info. https://www.yukoninfo.com/yukon-southeast-alaska-northern-british-columbia-maps/. Accessed August 25, 2018.
Yukon Oil and Gas Annual Report 2015. http://www.emr.gov.yk.ca/oilandgas/pdf/yukon-oil-and-gas-annual-report-2015.pdf. Accessed August 25, 2018.