PowerMacs G5 for climate simulation needed


PowerMacs G5 for climate simulation needed

The destruction of New Orleans by hurricane has shown the importance of climate for life on our planet. The distributed-computing-project "www.climateprediction.net" tries to explore our climate and its changes in the near future.

Sulphates act to scatter solar radiation and reduce the amount of solar energy reaching the surface. The reduction in solar radiation cools the surface and reduces the warming effect caused by greenhouse gases. So, a prediction of the climate in the 21st century needs to contain the effects of sulphate aerosol. Otherwise the warming trend may be overestimated. This is called the 'global dimming' effect. Therefore the Oxford university in Great Britain created a special "sulphur cycle experiment" within the "climateprediction"-project.

From this experiment it is hoped that scientists will be able to better understand the range of uncertainty in climate models due to the parameters in the sulphur cycle. This information will then be used in the following experiments of climateprediction.net.

The project has just released a special MacOSX-client for the "sulphur cycle experiment", which is very crunch-intensive and needs powerful Macs in order to be completed successfully. On a P4 3.0 in Linux, running stand-alone, one Sulphur Cycle Model requires approximately 39 days (@24/7). Therefore exspect an uptime of 35 up to 60 days for a PowerMac G5 to complete just one Sulphur cycle model. Moreover you will need a quick internet connection to do the upload and download of project files.
Exspect about one gigabyte datas to be downloaded on your harddisk during the whole run and about 20 megabytes datas which have to be uploaded. The datas of the experiment will need up to three gigabytes volume on your harddisk.

This is only a job for powerusers who want to demonstrate the power of the most modern Apple technology and their real interest in the future of mankind.