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  • Faqih, A., J. Ribbe, and H. Meinke, An Assessment of Rainfall Simulations for the Austral-Indonesian Region from the IPCC AR4 Models. In preparation.

The 20th century precipitation data from twenty-one climate models are evaluated for the Austral-Indonesian region. These models contribute to the fourth assessment report issued by the Intergovernmental Panel on Climate Change (IPCC AR4) in 2007. Our study aids the development of rainfall simulations for a geographical region that is characterized by important dynamic ocean/atmosphere processes and challenging to be represented accurately by climate models. The cumulative distribution functions (CDFs) analysis and seasonal climatology anomalies show that most models are better at simulating rainfall over northern Australia than the Indonesian maritime region, particularly during Austral winter and spring. The representation of seasonal rainfall remains problematic during Austral summer and autumn. We use cumulative absolute differences to rank the models and the MIUB-ECHO-G model is found to reproduce seasonal rainfall over terrestrial and oceans in the Austral-Indonesian region most accurately. The GISS-EH model is least able to reproduce these rainfall patterns.

Last Updated: 2008-09-03

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