This dataset contains WACCM-X model results under RCP8.5 (Representative Concentration Pathway) carbon dioxide increases and low solar activity. These cover ground level to a pressure level of 4e-10 hPa (~300 km altitude) on a global 144x96 longitude-latitude grid .

Data is given in daily instantaneous files in the netCDF format. Default WACCM-X outputs remain, along with the following additional variables:

'PS' - Surface Pressure

'Z3' - Geopotential Height (above sea level)

'T' - Temperature

'U' - Zonal Wind

'V' - Meridional Wind

'CO2' - Carbon Dioxide Concentration

'CO' - Carbon Monoxide Concentration

'NO' - Nitric Oxide Concentration

'H2O' - Water Vapour Concentration

'O' - Atomic Oxygen Concentration

More detail on each variable is given within the netCDF files and the readme file.

16 month runs from edited initial files at 10 year intervals from 2005 to 2095 under RCP8.5. There is also a 16 month 1975 run and 64 month 2000 run. All of these cyclically repeat the initial year. These are separated into individual folders with the RCP8.5 CO2 concentration listed. The first 4 months of each of these datasets have been ignored in processing as the model spins up, but are included here for completeness.

This data was collected to understand the density drop at low earth orbit altitudes as carbon dioxide concentrations increase.