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Wednesday, February 02, 2005

Climate change meets distributed computing 

Most of you are aware of the SETI @ Home project. In the same spirit of distributed computing comes an attempt to model climate change using the idle capacity of home/office computers to create a super computer of sorts, that may generate part of the enormous computing power required to model climate.

The aim of climateprediction.net is to investigate the approximations that have to be made in state-of-the-art climate models. By running the model thousands of times (a 'large ensemble') we hope to find out how the model responds to slight tweaks to these approximations - slight enough to not make the approximations any less realistic. This will allow us to improve our understanding of how sensitive our models are to small changes and also to things like changes in carbon dioxide and the sulphur cycle. This will allow us to explore how climate may change in the next century under a wide range of different scenarios. In the past estimates of climate change have had to be made using one or, at best, a very small ensemble (tens rather than thousands!) of model runs. By using your computers, we will be able to improve our understanding of, and confidence in, climate change predictions more than would ever be possible using the supercomputers currently available to scientists.

The FAQ's are here and here is a map that shows where clusters of clients using the software are based at.