README -- describes 10-year benchmark simulation 13.0.0 GEOS-Chem Support Team geos-chem-support@as.harvard.edu 12 Mar 2021 We ran this GEOS-Chem 10-year benchmark simulation (denoted 13.0.0) to evaluate the stratosphere. Results are compared to 1-year benchmark for GEOS-Chem 13.0.0-beta.1. For more information see the GEOS-Chem wiki: http://wiki.seas.harvard.edu/geos-chem/index.php/GEOS-Chem_13.0.0 Differences between this 10-year benchmark and the 10-year benchmark for 13.0.0-rc.0 include: 1. Saving out all monthly mean diagnostics for all years (2010-2019), not just the final year (2019). 2. Removing, and therefore turning off, the 'Set init. strat. H2O' option in the Chemistry Menu of input.geos.