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!