COSMOS Community Earth System Models
and its
regional pilot study BALTEX
Daniela Jacob
Outline
• Motivation• COSMOS
• Baltex as a pilot study
Motivation
During the 16th Baltex Science Steering Group meeting
the idea was born to implement Baltex as a
pilot study of COSMOS
Outline
• Motivation
• COSMOS
Rational, Initiative, Structure, Science
• Baltex as a pilot study
Rationale (1)
Time has come to integrate different model components into a Earth System Modeling framework
This Community Earth System Model is a tool to integrate knowledge and to address cross-cutting issues, including the interactions between the physical climate system and biogeochemical cycles.
Rationale (3)
COSMOS benefits from experience developed by different modeling groups in Germany and abroad
It is a community initiative, and involves top-of-the-line model components
It requires substantial computer resources
It should be designed flexible, portable and user-friendly, and is a joint venture between scientists and software engineers
Rationale (3)
It is designed to address global as well as regional issues
It should receive an international recognition, and be comparable to similar initiatives developed in other European countries, the US and Japan.
It should contribute to European research efforts
SDIAMSDEM
GWEM
MOZART, CHEM, CTM, SAM, HAM
LPJBETHYSICOPOLISMPI-OM1
LSGHAMMOC
ECHAM5, REMO, ATHAM, LES
The Initiative
COSMOS will be developed through human and financial resources provided by the partnership [Max Planck Institutes of Hamburg
(Project Leader), Jena and Mainz, and PIK], with an equally important participation of other groups
and institutions.
Supervising Board
Project Management
Scientific Advisory Board
Working Groups
1. Steering Committee
2. Scientific Advisory Group
3. Project management
4. Working groups
Management Structure
Management Structure
Steering Committee Oversees the evolution of the project, provides resources, and decides on the external co-operation with other institutions.
Scientific Advisory Group Advises the project by main responsible scientists of the contributing institutions and external, independent advisors.
Project managementResponsible for the planning of the total development process, the synthesis of the COSMOS development, and the scientific evaluation of the model.
Working groupsco-chaired by 2 scientists
The Working Groups(March 2004)
Integration and Project Leadership M. Giorgetta (MPI-M, Hamburg), D. Jacob (MPI-M, Hamburg)
Atmosphere: Physics and Dynamics E. Manzini (INGV, Bologna, Italy) , E. Roeckner (MPI-M, Hamburg)
Atmosphere: Chemistry J. Damski (FMI, Helsinki, Finland) , B. Steil (MPI-Chemie, Mainz)
Atmosphere: Aerosols J. Feichter (MPI-M, Hamburg), R. Sausen (DLR, Oberpfaffenhofen)
Ocean: Physics and Dynamics J. Haapala (FIMR), U. Mikolajewicz (MPI-M, Hamburg)
Ocean: Biogeochemistry C. LeQuere (MPI-BGC, Jena), E. Maier-Reimer (MPI-M, Hamburg)
Land: Vegetation and Hydrology L. Ganzeveld (MPI-M, Mainz), S. Hagemann (MPI-M, Hamburg)W. Knorr (MPI-BGC, Jena)
Data and Model Validation E. Schaller (U. Cottbus), U. Ulbrich (U. Köln)
Data Assimilation H. Elbern (U. Köln), M. Heimann (MPI-BGC, Jena)
Regional model system E. Kjellström (SMHI), D. Jacob
Meetings
2 meetings of the boards as well as the community
Several working group meetings
Workshop on data and model validation
Prototype Experiment Nr.1
1000 year transient climate experiment
Leading Scientist:
E. Roeckner
Co-laborators:
R. Sausen / M. Dameris, M. Schulz, S. Yang, B. Steil, U. Mikolajewicz, K. Schnitzler, U. Ulbrich, C. Heinze, S. Gualdi, P. Ruti, M. Wild
Prototype Experiment Nr.2
Regional patterns of climate change
Leading Scientist:
D. Jacob
Co-laborators:
W. May, E. Schaller, E. Kjellstrom, U. Ulbrich, M. Botzet, M. Wild
Important and urgent topicsdefined on the 2nd Annual Meeting, Lüneburg, March 2004
Reconstruction of the past 50 years/ IPCC scenarios/ evaluation of COSMOS1
What additional consequences come up by the coupling of everything ?
Regional modelling: hydrological cycle/extreme events (experiment will be designed)
Coupling of nitrogen and carbon cycle: What is the effect of nitrogen on the carbon cycle?
Polar carbon release: What are the consequences of high latitude methane release in a warming world?
The abiotic world: How would it look like?
COSMOS 1• atmospheric dynamics and physics (ECHAM5) • aerosols (HAM/M7)• atmospheric chemistry (MECCA)• land vegetation (JSBACH)• land atmosphere exchange (XTSURF)• hydrology, lateral/vertical (HD/multi layer)• ocean/ice (MPI-OM/embedded)• ocean biogeochemistry (HAMOCC + Dyn. Green Ocean
Model)• coupler (OASIS3)
Regional components not jet fully defined
Co-operation agreements
• The development and verification process will involve several partners.
• Co-operation agreements shall specify the mutual obligations of the individual partners within the development and verification of COSMOS.
Guiding Principles
• The models developed in the partnership will be made available to the Scientific Community, once these models are sufficiently evaluated by the model developers.
• Working groups will be responsible for the development, integration and evaluation of the codes.
• Working groups will be open to scientists who would like to contribute to the development or use of the model.
Guiding Principles
• The integration of the model components will be performed at the Max Planck Institute for Meteorology in close cooperation with the other partners
• The model will be documented and distributed through a web system maintained by the Max Planck Institute for Meteorology.
Guiding Principles
A community meeting will be organized every year
(1) to review progress in model development,
(2) to plan future development,
(3) to discuss scientific questions to be addressed by the model system.
Next Annual Meeting in Lüneburg, Germany
2. – 4. March 2005
http://cosmos.enes.org/
BALTEX and COSMOS
Will BALTEX be the first regional pilot project (???)
• Baltex grid project (A. Lehmann, D. Jacob)
• Share resources (model data, observations and
expertise) through international collaborations
• Concentrate on Baltex-Bridge period (1999-2004)
• Use coupled modelling systems RCAO and
BALTIMOS
The Baltex Grid
Examples of potential collaborations
Investigation of air-sea fluxes (compare observations
against model results)
Local dynamics of a region (provide boundary conditions
for high resolution model)
Analyses of extreme precipitation events (observations
versus coupled model results9
Sea ice evolution (improvement of the sea ice models)
Thank you for your attention!