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Discussion papers | Copyright
https://doi.org/10.5194/gmd-2018-143
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Model experiment description paper 01 Aug 2018

Model experiment description paper | 01 Aug 2018

Review status
This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

The Monash Simple Climate Model Experiments (MSCM-DB v1.0): An interactive database of mean climate, climate change and scenario simulations

Dietmar Dommenget1, Kerry Nice1,4, Tobias Bayr2, Dieter Kasang3, Christian Stassen1, and Michael Rezny1 Dietmar Dommenget et al.
  • 1Monash University, School of Earth, Atmosphere and Environment, Clayton, Victoria 3800, Australia
  • 2GEMOAR Helmholtz Centre for Ocean Research, Düsternbrooker Weg 20, 24105 Kiel, Germany
  • 3DKRZ, Hamburg, Germany
  • 4Transport, Health, and Urban Design Hub, Faculty of Architecture, Building, and Planning, University of Melbourne, Victoria 3010, Australia

Abstract. This study introduces the Monash Simple Climate Model (MSCM) experiment database. The model simulations are based on the Globally Resolved Energy Balance (GREB) model. They provide a basis to study three different aspects of climate model simulations: (1) understanding the processes that control the mean climate, (2) the response of the climate to a doubling of the CO2 concentration, and (3) scenarios of external CO2 concentration and solar radiation forcings. A series of sensitivity experiments in which elements of the climate system are turned off in various combinations are used to address (1) and (2). This database currently provides more than 1,300 experiments and has an online web interface for fast analysis of the experiments and for open access to the data. We briefly outline the design of all experiments, give a discussion of some results, and put the findings into the context of previously published results from similar experiments. We briefly discuss the quality and limitations of the MSCM experiments and also give an outlook on possible further developments. The GREB model simulation of the mean climate processes is quite realistic, but does have uncertainties in the order of 20–30%. The GREB model without flux corrections has a root mean square error in mean state of about 10°C, which is larger than those of general circulation models (2°C). However, the MSCM experiments show good agreement to previously published studies. Although GREB is a very simple model, it delivers good first-order estimates, is very fast, highly accessible, and can be used to quickly try many different sensitivity experiments or scenarios.

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Short summary
This study describes the scientific basis for a public webpage that gives access to a large set of climate model simulations. This webpage is called the "Monash Simple Climate Model". It provides access to more than 1,300 experiments and has an interactive interface for fast analysis of the experiments and for open access to the data. The study gives a short overview on the simulation experiments and discusses some of the results.
This study describes the scientific basis for a public webpage that gives access to a large set...
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