Auxiliary Material for Paper 2011GL050086

The role of the ocean in the global atmospheric budget of acetone

E. V. Fischer and D. J. Jacob 
School of Engineering and Applied Sciences, Harvard University, 
Cambridge, Massachusetts, USA

D. B. Millet 
Department of Soil, Water and Climate, University of Minnesota, 
St. Paul, Minnesota, USA

R. M. Yantosca 
School of Engineering and Applied Sciences, Harvard University, 
Cambridge, Massachusetts, USA

J. Mao
Geophysical Fluid Dynamics Laboratory, 
Princeton, New Jersey, USA


Fischer, E. V., D. J. Jacob, D. B. Millet, R. M. Yantosca, and J. Mao (2012), 
The role of the ocean in the global atmospheric budget of aceton, Geophys. Res. 
Lett., 39, L01807, doi:10.1029/2011GL050086.

Introduction 

The auxiliary material contains one table and three figures.
  
1. 2011gl050086-ts01.txt 
Table S1. Observations of acetone compared to model output in Figure 1. Region 
numbers for aircraft data refer to Figure S1. Aircraft observations from INTEX-
NA have been filtered to exclude biomass burning plumes, as diagnosed by HCN > 
500 pptv, since the model does not have the resolution to capture those plumes 
and they would otherwise bias the mean. Data from two legs of the OOMPH campaign 
are shown separately in Figure 1. The mean value is plotted for the first leg of 
the cruise from South Africa to Chile. The second leg of the plume, from Chile 
to South Africa, traversed more southern latitudes. The median is plotted for 
the second leg of the cruise, where the median (147 pptv) was much different 
than the mean (883 pptv), which is biased by a few very acetone high mixing 
ratios. 

2. 2011gl050086-fs01.tif  
Figure S1. Map with boxes surrounding coherent regions used to average the 
aircraft observations shown in Figure S2.
  
3. 2011gl050086-fs02.tif  
Figure S2. Comparison of simulated and observed vertical profiles of acetone 
concentrations from recent aircraft missions. The INTEX-NA data has been 
filtered to remove the largest biomass burning plumes using flight logs and HCN 
observations > 500 pptv.

3. 2011gl050086-fs03.tif  
Figure S3. Simulated annual mean air-sea fluxes of acetone for January and July 
2006.  Positive values indicate a net flux from the sea to the air.