Actualités en direct des projets (non traduites)

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Project: Quantifying controls on the intensity, variability and impacts of extreme European STORMS
by Clément Bouvier and Victoria Sinclair (University of Helsinki)

Throughout the year, low-pressure systems regularly move across Europe, usually from west to east, bringing cloud, rain and windy weather. Sometimes these weather systems can become very intense, and the winds and rain associated with them can cause damage to buildings and infrastructure, flooding, and can disrupt electricity supply and travel. Although the short-term weather forecasts of these storms are now quite accurate, it still remains uncertain how these storms, and their impacts, are likely to change in the future as our climate changes. Some of this uncertainty is because our understanding of what controls the strength and impacts of these storms is incomplete.

The aim of this project is to understand what controls the strength and structure of these low-pressure systems. We will quantify how the atmospheric state that the low-pressure systems develop in affects the strength and structure of these low-pressure systems. This atmospheric state can be described by various parameters, for example, the mean temperature, moisture content, and upper-level wind speeds (i.e. the strength and width of the jet stream). Since there are lots of different parameters we want to study (not just the ones described above), we want to do lots of experiments in a high controlled manner. Therefore, we will run a large ensemble of simulations of idealised low-pressure systems using the numerical weather prediction model OpenIFS. Although the simulations are idealised, the weather systems that develop look very like real weather systems that we observed in reality. Each ensemble member differs in its initial atmospheric state, and we choose these initial states to cover everything from the current climate to past pre-industrial climates to the most extreme future climate projections. This is exciting because although idealised simulations of low-pressure systems have been performed before, this is the first time that such an extensive exploration of the parameter space will be conducted.

Once we have the results from the large ensemble, we will calculate different measures of the strength of the storms and then use machine learning techniques to see how these relate to the initial states. Our results will hopefully increase in confidence in how these storms and their impacts will change in the future.

Technical information:
Run time: between 8 and 9 hours for 1 workunit (1 core, Xeon Gold 6230)
Number of files: 480 files
Maximum size of individual files: 1.3MB for 2D fields output files, 13.3MB for spectral output files, 7.1MB for 3D fields output files
Total disk load: 2.0GB

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Création : 12 juin 2024

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There is a slow progress from rehab but not happy with the results yet. All of the recovering is very slowly with restrictions.

The RAM was tested in the first run and looking ok.

I will test some work too.

I really missed the last pentathlon. Hoping to finish the TF range of GIMPS work too.

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Création : 11 juin 2024

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From June 12^th 19:00:00 UTC to June 19^th 19:00:00 PrimeGrid will be running a 7 day challenge on the GFN-19 project. The start and end times are comparatively usual. For more information, please see this forum thread.

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Création : 9 juin 2024

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I just being informed now that tomorrow 29/05/2024 in my area there will be another electrical power off from 9:00 to 16:00!!!!

This means that battery power supply cannot handle 7 hours of power failure, so I need to program that the server shot down automatically before 9:00 to preserve it.

It need to be manually power on and this could be done at 19:00.

Sorry for the problems.

Thanks

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Création : 28 mai 2024

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Starting this week, we will begin testing RoseTTAFold All-Atom, our state-of-the-art application designed to predict the structures of proteins in complex with ligands such as DNA and other biological molecules. It also models post-translational modifications. We are initially targeting only Windows machines with or without Nvidia GPUs for this test. Please report any issues in the discussion thread here: https://ralph.bakerlab.org/forum_thread.php?id=928

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Création : 21 mai 2024

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Thank you to all the BOINC Pentathlon participants who devoted their time and computing power to NFS@Home, and to SETI.Germany for organizing this event. We look forward to next time!

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Création : 21 mai 2024