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Tag: CMIP5

Research brief: SSTs create biases in how ENSO appears in CMIP5 models

A new study by CLEX researchers and colleagues shows that CMIP5 models as a group, when forced by observed sea surface temperatures underestimate, these atmospheric feedbacks on average by 23%. This underestimate can be linked to the wrong location at which climate models simulate the most important tropical circulation, called the Walker circulation.

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Research brief: More hot days at the same global temperature in a warming world than a world where warming has plateaued.

Using a novel methodology applied to CMIP5 projections CLEX researchers found that the local temperatures experienced by 90% of people would be substantially higher in a transient (still warming) climate than an equilibrium climate where the temperatures have plateaued, for the same global temperature.

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Briefing note 003: Why are we uncertain about how extremely wet conditions will change in Australia in the future?

Computer models used to simulate global climate agree the climate will warm in response to increasing atmospheric greenhouse gases. However, a recent paper by Bador et al. (2018)1 includes results that highlight our uncertainty about exactly how extremely wet conditions will change in Australia. Further development of Australia’s national climate model, ACCESS, may help reduce this uncertainty.

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