This directory presents a comparison between CMAQ and CMAQ-MADRID 
for the following species:
fine EC, fine NO3, fine NH4, fine SO4,
fine OM, fine SOA, PM2.5 and Ozone.

Differences seen are due to differences in science in the two models.
Details on the science in CMAQ-MADRID can be found in:
Zhang, Y., B. Pun, K. Vijayaraghavan, S. Wu, C. Seigneur, S. Pandis,
M. Z. Jacobson, A. Nenes and J. Seinfeld, Development and Application 
of the Model of Aerosol Dynamics, Reaction, Ionization and Dissolution (MADRID),
J. Geophys. Res., Vol. 109, D01202 (2004)

<PM species>.gif: 
Spatial distribution of 72-hour-average concentrations (19960103 to 19960105)
in surface layer from CMAQ and CMAQ-MADRID. 

O3.gif:
Spatial distribution from CMAQ and CMAQ-MADRID 
at the hour of maximum difference between two models. 

<PM species>.scatter.gif:
Scatter plots of 72-hour-average concentrations (19960103 to 19960105)
over all grid-cells in the surface layer in the modeling domain (132x90)

O3.scatter.gif
Scatter plot of O3 concentrations at hour of peak CMAQ Ozone 
(during 19960103 to 19960105) over all surface layer gridcells 
in the domain (132x90) from CMAQ-MADRID and CMAQ.

<species name>.cdf.gif:
Cumulative distribution showing the percentage of grid-cells 
vs. the absolute difference in simulated concentrations from the two models.
(All grid cells in the surface layer in the domain are included)

NOTES:
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