Models & Standards

Within COSMOS a prototype Earth system model will be developed based on component models currently available in the participating community. The meeting of the working group co-chairs held in Hamburg on the 31 October 2003 led to the definition of a  global COSMOS prototype, or 0-version,  shown in the table below. After successfull testing this will constitute the first version of the ESM: COSMOS1.

 

COSMOS "0": list of components

atmospheric dynamics and physics

ECHAM5 1

aerosols

HAM-M7

atmospheric chemistry

MECCA

land vegetation

JSBACH

land atmosphere exchange

XTSURF

hydrology, lateral/vertical

HD/multi layer

ocean/ice

MPIOM/embedded

ocean BGC

HAMOCC
(+Dyn. Green Ocean Model)

coupler

OASIS3

 
1: Target resolution for the atmosphere is T63 L31

 

COSMOS "1":

COSMOS1 in version 1.0.0 includes model codes of ECHAM5, MPIOM, the OASIS coupler and the Standard Compiling Environment and Standard Running Environment. Using standardized scripts, a user can compile and run ECHAM5, MPIOM or ECHAM5/MPIOM. The model system has been tested on the NEC-SX6 at DKRZ.

This model package is distributed by the Model and Data Group to the user community. The procedure as well as the full list of models is described on the "Model distribution" page.

Standards

Standardization of  the infrastructure and coding methods for climate research are the key to the construction of complex Earth System Models. The intelligent usage of standards improves the understanding of codes and avoids multiple developments for identical problems.

The European PRISM project develops infrastructure for Earth System Modelling including  the coupler OASIS, as well as tools for configuration, monitoring and postprocessing. PRISM also provides guidelines for good coding practices. Detailed information can be found in the PRISM System Specifications Handbook.

http://prism.enes.org/

COSMOS will attempt to draw the maximum benefit from PRISM developments.