Journal
MARINE POLLUTION BULLETIN
Volume 142, Issue -, Pages 216-233Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2019.03.021
Keywords
Arctic sea ice; Petroleum hydrocarbons; Oil composition; Oil weathering; Dielectrics; Remote sensing
Funding
- ArcticNet Networks of Centres of Excellence
- Arctic Science Partnership (ASP)
- Genome Canada
- Microbial Genomics for Oil Spill Preparedness in the Canadian Arctic (GENICE)
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There has been increasing urgency to develop methods for detecting oil in sea ice owing to the effects of climate change in the Arctic. A multidisciplinary study of crude oil behavior in a sea ice environment was conducted at the University of Manitoba during the winter of 2016. In the experiment, medium-light crude oil was injected underneath young sea ice in a mesocosm. The physical and thermodynamic properties of the oil-infiltrated sea ice were monitored over a three-week time span, with concomitant analysis of the oil composition using analytical instrumentation. A resonant perturbation technique was used to measure the oil dielectric properties, and the contaminated sea ice dielectric properties were modeled using a mixture model approach. Results showed that the interactions between the oil and sea ice altered their physical and thermodynamic properties. These changes led to an overall decrease in sea ice dielectrics, potentially detectable by remote sensing systems.
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