Detection of Oil in, with, and under Ice and Snow

Fingas, Merv; Brown, Carl E.

doi:10.1002/9781118989982.ch14

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…Core samples revealed that the ice in the oil tub had grown to 5-cm thick, while the ice in the control tub had grown to 7-cm thick. This demonstrates that the ice in the oil tub grew in the midst of oil-contaminated seawater, and it agrees with the conclusion of [53] that oil-contaminated seawater does not prevent ice growth. However, it has been proposed that the insulating properties of oil may slow the rate of ice growth beneath the oil skim [31], [32].…”

Section: B Phase-two Experimentssupporting

confidence: 89%

Toward the Detection of Oil Spills in Newly Formed Sea Ice Using C-Band Multipolarization Radar

Asihene

Desmond

Harasyn

et al. 2022

IEEE Trans. Geosci. Remote Sensing

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Oil spills in the Arctic are becoming more likely as shipping traffic increases in response to climate-related sea ice loss. To improve oil spill detection capability, we used a controlled mesocosm to analyze the multipolarized C-band backscatter response of oil in newly formed sea ice (NI). Artificial sea ice was grown in two cylindrical tubs at the Sea-ice Environmental Research Facility, University of Manitoba. The sea ice physical characteristics, including surface roughness, thickness, temperature, and salinity, were measured before and after oil injection below the ice sheet. Time-series C-band radar backscatter measurements detected the differences in the sea ice evolution and oil migration to the sea ice surface in the oilcontaminated tub, which was compared to uncontaminated ice in a control tub. Immediately prior to the presence of oil on the ice surface, the copolarized backscatter is increased by 13-dB local maximum, while the cross-polarized backscatter is decreased by 9-dB. Ice physical properties suggest that the local backscatter maximum and minimum, which occurred immediately before oil migrated onto the surface, were related to a combination of brine and oil upward migration. The findings of this work provide a baseline data interpretation for oil detection in the Arctic Ocean using current and future C-band multipolarization radar satellites.

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Section: B Phase-two Experimentssupporting

confidence: 89%