This directory contains archive files obtained with various dust scenarios (realistic MY24,MY25, ... MY35 dust scenarios, with companion realistic daily varying EUV, and climatology scenario with fixed average EUV) at resolution 64x48x49. These archives were made from Mars PCM runs used to build MCDv6.1. Each archive file contains 4 initial conditions (Ls=0,90, 180 and 270) and all 43 currently available tracers (ie: including those needed for chemistry, thermosphere and ionosphere). Rename the archive you need as start_archive.nc and then use utility 'newstart' to extract initial conditions for your GCM run.