co2-production 72 levels in GEOS-5 (identical to MERRA) 56 levels in PCTM Remote access to the computing system convert to PCTM arrays (vertical and horizontally) - regridding regrid restart files new-home-work obtaining new dataset ftp:// become familiar with the data global network of data (e.g. NOAA) Measurements from the USA different formats for each of the networks NOAA, compiled.