Natasha Ridenour¹, Fiammetta Straneo², James Holte², Yves Gratton³, Paul Glen Myers¹ and David G Barber⁴, (1)University of Alberta, Edmonton, AB, Canada, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)INRS-ETE, Quebec, QC, Canada, (4)University of Manitoba, Winnipeg, MB, Canada