Animation: LES simulations showing ship track sensitivity to background aerosol

This video depicts the albedo field from two LES simulations of a ship track. In the upper panel, the background cloud condensation nuclei concentration is approximately 10-15 /cm3, while in the lower panel, it is 100-150 /cm3. The ship track aerosol perturbation applied to the high background aerosol case is 10x as large as the low background aerosol case in order to make a visible signature, as the weaker perturbation used in the low aerosol case has a much weaker impact under conditions of high background aerosol.

Animation courtesy of Andy Berner

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