ComparCE
Comparative Assessment of Potential Impacts, Side-Effects and Uncertainties of CE Measures and Emission-Reduction Efforts
- Prof. Dr. Andreas Oschlies // GEOMAR Helmholtz Centre for Ocean Research Kiel // PI
aoschlies@geomar.de - Dr. Tatiana Ilyina // Max Planck Institute for Meteorology, Hamburg (MPI-M) // PI
tatiana.ilyina@mpimet.mpg.de - Dr. Julia Pongratz // MPI-M // PI
julia.pongratz@mpimet.mpg.de - Dr. Hauke Schmidt // MPI-M // PI
hauke.schmidt@mpimet.mpg.de - Dr. Sebastian Sonntag // MPI-M
- Dr. David Keller // GEOMAR
- Dr. Christian Reick // MPI-M
- Miriam Ferrer-Gonzales // MPI-M
- Nadine Mengis // GEOMAR
- Fabian Reith // GEOMAR
- Yuming Feng // GEOMAR
Project Goal
The key goal of the project is an objective and comprehensive assessment of potential effects, side-effects, and uncertainties of different Climate Engineering (CE) methods and emission reduction measures. This will be done using simulations with Earth system models.
Different CE methods (e.g., afforestation, radiation management, ocean alkalinity enhancement) will be simulated under various CO2 emission scenarios. Effects and side-effects will be compared by using different metrics (Fig. 1).
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C O R E Q U E E S T I O N S
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Methods
A relatively simple, computationally fast Earth system model (UVic) will be established as an emulator of a complex but computationally costly model (MPI-ESM). Thus, a multitude of model simulations with different CE methods, model parameters, and emission pathways can be performed. This will allow for a better characterization of uncertainties in the model results.
Legend:
ECHAM6 - European Centre for Medium-Range Weather Forecasts Hamburg Version 6
JSBACH - Jena Scheme for Biosphere-Atmosphere Coupling in Hamburg
MPIOM - Max-Plank-Institute Ocean General Circulation Model
HAMOCC - Hamburg Ocean Carbon Cycle
EMBM - Energy Moisture Balance Model
MOSES - Met Office Surface Exchange Scheme
TRIFID - Top-down Representation of Interactive Foliage and Flora Including Dynamics
MOM2 - Modular Ocean Model (http://climate.uvic.ca/model/common/manual2.2.ps)
Role in the Priority Programme
1. Model simulations of different CE methods are performed and provided.
2. Metrics for the assessment of CE effects are developed in close cooperation with other subprojects and are checked for their validity in model calculations.
3. Uncertainties in the model results are calculated and provided.