README
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December 16, 2024

Global atmospheric chemistry model data as described in Hodnebrog et al. (in preparation): "Multi-model estimates of global climate effects of anthropogenic reactive nitrogen".

For questions about the dataset, please contact Øivind Hodnebrog (oivind.hodnebrog@cicero.oslo.no).

Data are organised in folders for each of the two experiments: CTRL_2019 and No_allNr. There are subfolder for each of the five models: CESM2 (run by Caroline Jouan), GFDL (run by Fabien Paulot), GISS (run by Caroline Jouan), LMDZ-INCA (run by Didier Hauglustaine) and OsloCTM3 (run by Øivind Hodnebrog).

For each of the chemistry-climate models, six variables have been made available (in netcdf format):
- ch4:        3-d volume mixing ratio of methane
- mmrno3fine: 3-d mass mixing ratio of fine-mode nitrate aerosols
- mmrso4:     3-d mass mixing ratio of sulphate aerosols
- o3:         3-d volume mixing ratio of ozone
- oh:         3-d volume mixing ratio of hydroxyl radical
- ps:         2-d surface pressure (3-d pressure for LMDZ-INCA, pmid)

For the one chemistry-transport model (OsloCTM3), several variables have been made available. These data are organized as one netcdf file per month of the 12-month simulation.