Aux_material_1.pdf: Caption

Measured mole fractions at each site, with 1-sigma uncertainties (including sampling and modeling error) are shown as blue lines with blue shading.  The modeled mole fractions using EDGAR v4 emissions (extrapolated from 2006 to 2008 using 2004 and 2005 values) are shown as a red line.  Mole fractions predicted by the model using the optimized emissions are shown as a black line.