The a posteriori global monthly emissions of CH₃Cl are available from the biosphere, biomass burning, ocean, incineration/industrial, salt marshes, and wetlands. The sinks include ocean and soils.  The global annual total flux distributions are available for the each source and sink and the total flux. The spatial resolution is 4x5. The longitude centers are sequentially 177.5 W, 172.5 W, ..., 177.5 E. The latitude centers are sequentially 89 S, 86 S, 82 S, ...,82 N, 86 N,  89 N. The unit is Gg per grid box (see the readme file).

Reference: Yoshida, Y., Y. Wang, C. Shim, D. Cunnold, D. Blake, and G. Dutton, Inverse modeling of the global methyl chloride sources, J. Geophys. Res., 111, D16307, doi:10.1029/2005JD006696, 2006.