ECHAM4/MLO

The ECHAM4/MLO model consists of an atmospheric component (ECHAM4) and a mixed layer ocean (MLO) component (Roeckner et al., 1995). We use this model configuration for climate sensitivity studies with respect to conventional (CO2 and solar constant) and spatially inhomogeneous (ozone, aerosols, and clouds) radiative perturbations of the climate system. Currently the ECHAM4.L19 standard model is used, but an extension to the coupled atmospheric dynamics/chemistry model ECHAM4.L39(DLR)/CHEM is under construction.

Reference

• Roeckner, E., T. Siebert, J. Feichter, 1995: Climate response to anthropogenic sulfate forcing simulated with a general circulation model. In: Aerosol forcing of climate, Wiley & Sons, Chichester, 349-362.

Publications

• Ponater, M., R. Sausen, B. Feneberg, E. Roeckner, 1999: Climate effect of ozone changes caused by present and future air traffic. Clim. Dyn., 15, 631-642.
• Stuber, N., R. Sausen, M. Ponater, 2001: Stratosphere adjusted radiative forcing calculations in a comprehensive climate model. Theor. Appl. Climatol., 68, 125-135.
• Stuber, N., M. Ponater, R. Sausen, 2001: Is the climate sensitivity of ozone perturbations enhanced by stratospheric water vapour feedback ? Geophys. Res. Lett., 28, in press.