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Primeur weekly 2016-05-30

Focus

CERN technology for Large Hadron Collider to evolve from computing Grid to scientific Cloud ...

Quantum computing

Purdue professor selected to establish Station Q Purdue, part of Microsoft Station Q ...

Top international award for UNSW Australia quantum computing chief ...

D-Wave Systems to organize Quantum Computing Seminar at ISC16 ...

New device steps toward isolating single electrons for quantum computing ...

Dartmouth team creates new method to control quantum systems ...

Focus on Europe

The Instituto de Astrofísica de Canarias will participate in new European SUNDIAL network ...

Discover how digital technology impacts scientific practice ...

Digital Infrastructures for Research 2016 to issue Call for Papers ...

Middleware

Cray Urika-GX system harnesses supercomputing performance to tackle Big Data analytics ...

Hardware

Cavium announces ThunderX2 ...

Gigantic ultrafast spin currents ...

Introducing the AMD FirePro S7100X, the industry’s first and only hardware-virtualized GPU for blade servers ...

STULZ USA announces strategic investment and commercial partnership with CoolIT Systems ...

Made-in-India supercomputers by August 2017 under govt's Rs 4,500-crore National Supercomputing Mission ...

Applications

KIT brings outstanding experimental physicist back to Germany ...

NOAA's premier forecast model goes 4D ...

Argonne launches first tech incubator ...

Current atmospheric models underestimate the dirtiness of Arctic air ...

The Cloud

FleetCor adopts IBM Cloud to help businesses stay in the fast lane ...

EnerTech of Kuwait Investment Authority selects Cloud-based analytics service from IBM and Waterfund for insights into water costs ...

IBM offers Watson services on Twilio marketplace ...

Current atmospheric models underestimate the dirtiness of Arctic air

25 May 2016 Tokyo - Black carbon aerosols - particles of carbon that rise into the atmosphere when biomass, agricultural waste, and fossil fuels are burned in an incomplete way - are important for understanding climate change, as they absorb sunlight, leading to higher atmospheric temperatures, and can also coat Arctic snow with a darker layer, reducing its reflectivity and leading to increased melting. Unfortunately, current simulation models, which combine global climate models with aerosol transport models, consistently underestimate the amount of these aerosols in the Arctic compared to actual measurements during the spring and winter seasons, making it difficult to accurately assess the impact of these substances on the climate.

To find out if these inaccuracies could be mitigated, a team of scientists decided to use the Japanese K computer to perform fine-grained simulations of how black carbon aerosols are transported to and distributed in the Arctic region. By using smaller grids - with spacing of just a few kilometers rather than several tens of kilometers as in conventional current models - they were able to show that they could more realistically model the amount of black carbon aerosols, mitigating the underestimation in more coarse-grained models. Their finest model used 3.5 kilometer grids broken up vertically into 38 layers, so that it required 1.6 billion grids to cover the globe. The simulation, done on the 10-petaflop K computer, still required 17 hours to perform the two week simulation.

According to Yousuke Sato of the RIKEN Advanced Institute for Computational Science (AICS), "this research shows that powerful supercomputers, by performing more fine-grained simulations, can help us to model weather and climate patterns in a more realistic way. We have to note, however, that while our model reduced the underestimation, it did not completely eliminate it. Further generations of even more powerful computers will allow us to run simulations that may be able to make even more realistic simulations and help us to understand the mechanism through which these aerosols are transported."

"It is also known", continued Yousuke Sato, "that current models do not realistically model the vertical distribution of the aerosols, and we believe that finer measurements could help there as well. Unfortunately there were no vertical measurements taken in November 2011, the time we chose to model, so we plan in the future to do simulations for time periods for which actual measurement data exist."

The research, published in Scientific Reports , was carried out by AICS in collaboration with the University of Tokyo, the National Institute of Environmental Studies, Kyushu University, and the Japan Aerospace Exploration Agency.
Source: RIKEN

Back to Table of contents

Primeur weekly 2016-05-30

Focus

CERN technology for Large Hadron Collider to evolve from computing Grid to scientific Cloud ...

Quantum computing

Purdue professor selected to establish Station Q Purdue, part of Microsoft Station Q ...

Top international award for UNSW Australia quantum computing chief ...

D-Wave Systems to organize Quantum Computing Seminar at ISC16 ...

New device steps toward isolating single electrons for quantum computing ...

Dartmouth team creates new method to control quantum systems ...

Focus on Europe

The Instituto de Astrofísica de Canarias will participate in new European SUNDIAL network ...

Discover how digital technology impacts scientific practice ...

Digital Infrastructures for Research 2016 to issue Call for Papers ...

Middleware

Cray Urika-GX system harnesses supercomputing performance to tackle Big Data analytics ...

Hardware

Cavium announces ThunderX2 ...

Gigantic ultrafast spin currents ...

Introducing the AMD FirePro S7100X, the industry’s first and only hardware-virtualized GPU for blade servers ...

STULZ USA announces strategic investment and commercial partnership with CoolIT Systems ...

Made-in-India supercomputers by August 2017 under govt's Rs 4,500-crore National Supercomputing Mission ...

Applications

KIT brings outstanding experimental physicist back to Germany ...

NOAA's premier forecast model goes 4D ...

Argonne launches first tech incubator ...

Current atmospheric models underestimate the dirtiness of Arctic air ...

The Cloud

FleetCor adopts IBM Cloud to help businesses stay in the fast lane ...

EnerTech of Kuwait Investment Authority selects Cloud-based analytics service from IBM and Waterfund for insights into water costs ...

IBM offers Watson services on Twilio marketplace ...