Experiment Setup and Forcings Guidance: esm-scen7-vl-AQ

Used to diagnose climate and air quality responses to the regionally heterogeneous evolution of anthropogenic non-CH4 SLCF emissions. Anthropogenic non-CH4 tropospheric O3 precursor emissions (NMVOCs, CO, NOx), aerosols, and aerosol precursor emissions (BC, OC, NH3, SO2) evolve as in esm-scen7-h. All other forcings evolve as in esm-scen7-vl. Requires interactive chemistry. Models without interactive chemistry should run esm-scen7-vl-Aer instead.

This page is intended to help with implementation. If you notice something that is unclear, please raise an issue.

For the full background of the experiment, please see the following URLs:

Paired experiments

  • esm-scen7-vl-Aer is the corresponding non-interactive-chemistry experiment for models that do not include interactive chemistry.
  • scen7-vl-AQ is the concentration-driven counterpart to this emissions-driven experiment.

Experiment set up

Parent experiment and branching

The esm-scen7-vl-AQ experiment branches from the esm-hist experiment (part of CMIP). The parent experiment's MIP era is CMIP7.

Branch from esm-hist at 2021-12-31.

Output time axis

Your output time axis must start on 2022-01-01 and must end on 2100-12-31. You must perform the full simulation i.e. 79 simulation years.

Minimum ensemble size

Only one ensemble member is required.

Forcings

The following information will help you identify the forcings to use. However, we can't define every single detail because there can be lots of subjective steps between the raw forcings data and model inputs (e.g. interpolation, re-aggregation, supplementation with other information). If further guidance would be helpful, please raise an issue.

General headlines

The esm-scen7-vl-AQ experiment is a transient forcings experiment.

Data

Here we make a distinction between data that is described on other experiment pages, data that is described on other experiment pages with modifications you have to make yourself, data available via ESGF's input4MIPs project and data distributed via other channels.

Data described on other experiment pages

All data is described on the scen7-vl-AQ experiment page.

Data described on other experiment pages with modifications you have to make

No data described on other experiment pages requires modifications by you. Please see the other data sub-sections for details of the forcings data to use for this experiment.

Data available via input4MIPs

No input4MIPs-based data is described specifically on this page. Please see the other data sub-sections for details of the forcings data to use for this experiment.

Data not available via input4MIPs

No data that is not input4MIPs-based is described specifically on this page. Please see the other data sub-sections for details of the forcings data to use for this experiment.