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Investigation into the geometry and distribution of oil inclusions in sea ice using non-destructive X-ray microtomography and its implications for remote sensing and mitigation potential
Desmond, D.S.; Crabeck, O.; Lemes, M.; Harasyn, M.L.; Mansoori, A.; Saltymakova, D.; Fuller, M.C.; Rysgaard, S.; Barber, D.G.; Isleifson, D.; Stern, G.A. (2021). Investigation into the geometry and distribution of oil inclusions in sea ice using non-destructive X-ray microtomography and its implications for remote sensing and mitigation potential. Mar. Pollut. Bull. 173(Part A): 112996. https://dx.doi.org/10.1016/j.marpolbul.2021.112996
In: Marine Pollution Bulletin. Macmillan: London. ISSN 0025-326X; e-ISSN 1879-3363, more
Peer reviewed article  
Available in  Authors 
Keyword
    Marine/Coastal
Author keywords
    Sea ice; Oil-in-ice; Crude oil; X-ray imaging; Remote sensing detection; Bioremediation
Authors  Top 
  • Desmond, D.S.
  • Crabeck, O., more
  • Lemes, M.
  • Harasyn, M.L.
  • Mansoori, A.
  • Saltymakova, D.
  • Fuller, M.C.
  • Rysgaard, S.
  • Barber, D.G.
  • Isleifson, D.
  • Stern, G.A.
Abstract
    As climate change brings reduced sea ice cover and longer ice-free summers to the Arctic, northern Canada is experiencing an increase in shipping and industrial activity in this sensitive region. Disappearing sea ice, therefore, makes the Arctic region susceptible to accidental releases of different types of oil and fuel pollution resulting in a pressing need for the development of appropriate scientific knowledge necessary to inform regulatory policy formulation.In this study, we examine the microstructure of the surficial layers of sea ice exposed to oil using X-ray microtomography. Through analysis, 3D imaging of the spatial distribution of the ice's components (brine, air, and oil) were made. Additional quantitative information regarding the size, proximity, orientation, and geometry of oil inclusions were computed to ascertain discernable relationships between oil and the other components of the ice. Our results indicate implications for airborne remote sensing and bioremediation of the upper sea ice layers.
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