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Home > Themesites > IMAGE > Model Details > Atmospheric Chemistry > Relations with other models, model input and output
Atmospheric Chemistry Model
The Atmospheric Chemistry Model of IMAGE 2.4 (ACM) calculates the concentrations of the most important greenhouse gases and other reactive gases. It has not been changed since IMAGE 2.2.
Atmospheric Chemistry Model | | Relations with other models, model input and output |
Model description
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Relations with other models, model input and outputRelations with other modelsACM uses the sum of the emissions from natural and land-use related sources generated by the Land-Use Emissions Model (LUEM), and emissions from energy systems and industrial activities from the TIMER Emissions Model (TEM). The output of ACM - gas concentrations - is the input for the Upwelling-Diffusion Climate Model of IMAGE (UDCM).
The radiative forcing by aerosols is calculated directly from the sulphate emissions in UDCM. The stratospheric ozone forcing is calculated from the concentrations of all chlorine- and bromine-containing compounds, calculated in ACM. | Model input and output | | model input |
- Emissions of CH4, N2O, NOx, CO, NMVOC, CFCs, CCs, HCFCs, bromocarbons, PFCs, SF6 and HFCs
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- Concentrations of CH4, N2O, CO, tropospheric ozone, CFCs, CCs, HCFCs, bromocarbons, PFCs, SF6, HFCs and the OH-radical
- Chemical and atmospheric lifetime of CH4
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