What is DOME?

DOME is an international study group aimed at comparing the performance of a number of state-of-the-art-ocean models in representing these processes, at quantifying model performance and identifying areas for improvement in individual models. These models include HIM, POM, MOM, MICOM, MOMBLE, SPEM, SCRUM, ROMS, POSEIDON, OPA, etc.

The original idea for some kind of comparison project to address overflow related issues was conceived in discussions between Robert Hallberg, Peter Killworth and James Stephens. This idea rapidly grew into what is now the DOME project. DOME has already attracted a great deal of interest, at this stage mostly from the large-scale numerical modeling community. Comparisons are taking place between isopycnal, geopotential and sigma coordinate models within the following, quasi-chronological framework of tests:

In the case of the idealized overflow, we intend to conduct a series of tests for each model utilizing different horizontal and vertical resolutions, stratifications, slopes etc. This will clearly identify the strengths and weaknesses of individual models in a framework which will minimize model to model differences and enable meaningful quantitative comparisons to be made.

The components of each of the tests are designed to be conducted in house by each of the participating groups. This will enable open participation in DOME now and in future years by the whole scientific community. All the relevant information pertaining to the configuration of the tests, quantitative performance measures etc., is being continually added to a rapidly growing technical report.

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