Auxiliary Material for Paper 2012GL053097 Spatial distribution of air-sea heat fluxes over the sub-polar North Atlantic Ocean G. W. K. Moore Department of Physics, University of Toronto, Toronto, Ontario, Canada I. A. Renfrew School of Environmental Sciences, University of East Anglia, Norwich, UK R. S. Pickart Department of Physical Oceanography, Woods Hole Oceanographic Institution, Woods Hole, Massachusetts, USA Moore, G. W. K., I. A. Renfrew, and R. S. Pickart (2012), Spatial distribution of air-sea heat fluxes over the sub-polar North Atlantic Ocean, Geophys. Res. Lett., 39, L18806, doi:10.1029/2012GL053097. Introduction The auxiliary material contains two figures and two tables. Figure S1 indicates place names in the region as well as the winter mean sea surface temperature field. Figure S2 shows the composite Bowen Ratio field for the Iceland Sea low and high heat flux regimes. Tables S1 and S2 indicate the months that were included in the low and high heat flux composites. 1. 2012gl053097-fs01.pdf Figure S1. Winter mean (DJFM) climatology of the sea surface temperature (oC- contours and shading) from the ERAI 1979-2012. The thick black line represents the 25% winter mean ice concentration isocontour. Placenames in the sub-polar North Atlantic are also shown. 2. 2012gl053097-fs02.pdf Figure S2. Composite monthly mean Bowen Ratio (contours and shading) for winter months (DJFM) during which the total turbulent heat flux at the Iceland Sea site '+' is in the: (a) 10th or (b) 90th percentile. 3. 2012gl053097-ts01.doc Table S1. Months in which the monthly total turbulent heat flux at the Iceland Sea site is in the 10th percentile. 4. 2012gl053097-ts02.doc Table S2. Months in which the monthly total turbulent heat flux at the Iceland Sea site is in the 90th percentile.