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A NERSC INCITE projectBridging the Gap between Climate and Weather
The distinction between climate and weather was expressed most succinctly by science fiction writer Robert A. Heinlein: “Climate is what you expect; weather is what you get.” But as global warming produces more noticeable changes on a planetary scale, how do we even know what to expect in a particular region? [MORE] |
News
NOAA Awarded 2.6 Million Processor Hours at NERSC
As part of a Memorandum of Understanding between the Department of Energy and the National Oceanic and Atmospheric Administration, NOAA has been awarded 10 million processor hours at NERSC, Oak Ridge and Argonne, to develop and perform scientific simulations of the global climate at unprecedented resolution. [MORE]
NERSC User Group to Meet Oct. 2-3 in Oakland
Registration is open for the NERSC User Group (NUG) meeting Oct. 2-3 at NERSC's Oakland Scientific Facility. Thursday, Oct. 2, is training day, followed by the NUG business meeting on Oct. 3. The registration deadline is Sep. 24. [MORE]
Now Computing
A small sample of computations taking place on NERSC supercomputers right now.| Project | Machine | Processors |
|---|---|---|
| The 20th Century Reanalysis Project | Franklin | 2,464 |
| The 20th Century Reanalysis Project | Franklin | 2,464 |
| X-ray Absorption Spectra of Aqueous Solutions from First Principles Calculations | Franklin | 2,416 |
| Computational Astrophysics Consortium | Franklin | 1,024 |
| Computational Atomic Physics for Fusion Energy | Bassi | 240 |
| Theoretical studies of combustion dynamics | Jacquard | 128 |
Science @NERSC
Modeling Microturbulence
In fusion plasmas, microturbulence can cause instabilities and heat loss that could stop the fusion reaction
At the core of a fusion reactor such as a tokamak, the temperatures and densities are higher than at the outside edges. As with weather, when there are two regions with different temperatures and densities, the area between is subject to turbulence. In a tokamak, turbulence can allow charged particles in the plasma to move toward the outer edges of the reactor rather than fusing with other particles in the core. If enough particles drift away, the plasma loses temperature and the fusion reaction cannot be sustained.
[Article]
