The GLOBO model
Dynamical Seasonal forecasting
Regional Predictability and Forecasts
Seminar and Exercise
2.1 Atmospheric General Circulation Models
Stefano Materia, CMCC The Euro-Mediterranean Center on Climate Change
- A brief introduction on General Circulation Models; General circulation models of the atmosphere are resolved by complicated equations that need to be discretized in order to find a solution.
- Horizontal resolution plays an important role for a correct simulation of climate processes, a better representation of orography.
- Two different approaches: AMIP-type (ocean is a boundary condition) and fully coupled type (ocean and atmosphere interact every time step)
- Despite systematic biases, models are able to reproduce the past climate, when the anthropogenic forcing is introduced. It’s likely that future climate is also well projected.
- The far target of climate projections makes the impact of initialization neglectable: instead, boundary conditions have a crucial role for the representation of future climate. A realistic state initial state representation is needed for climate predictions
Atmospheric General Circulation Models: methodology, results, biases
Stefano Materia, Centro Euro-Mediterraneo sui Cambiamenti Climatici CMCC
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License