Entries filed under “Visualization”

In this video, a supercomputing simulation depicts the physics involved in the formation of the Milky Way. Researchers at the University of California, Santa Cruz and the Institute for Theoretical Physics in Zurich used over 8 months of supercomputing time to run the simulation, called “Eris,” which solves a long-standing problem that led some to question the prevailing cosmological model of our universe.o complete their analysis.

Previous efforts to form a massive disk galaxy like the Milky Way had failed, because the simulated galaxies ended up with huge central bulges compared to the size of the disk,” said Javiera Guedes, the postdoctoral researcher at ETH Zurich who authored the study.

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In this video, IBM’s “Deep Thunder” simulation shows an 84-hour forecast for NYC starting from Aug. 24. At the end of the video you can see increase in clouds, some precipitation and the wind arrows lining up because of Hurricane Irene’s circulation.

In this video, NCSA visualization programmer Mark Van Moer describes how scientists transform large amounts of numerical data into images that allow people to see what the data means. More information and a transcript are available at the NCSA site.

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The Workshop on Visualization of Large Scientific Data will stream their sessions live on June 14-15 from the CINECA supercomputing centre in Bologna, Italy.

“The scientific community is presently witnessing an unprecedented growth in the quality and quantity of data coming from simulations and real-world experiments. Moreover writing results of numerical simulations to disk files has long been a bottleneck in high-performance computing. To access effectively and extract the scientific content of such large-scale data sets (often sizes are measured in hundreds or even millions of Gigabytes) appropriate tools and techniques are needed. In-situ visualization libraries enable the user to connect directly to a running simulation, examine the data, do numerical queries and create graphical output while the simulation executes. It addresses the need of extreme scale simulation, eschewing the need to write data to disk. The workshop will bring together researchers, developers, computational scientists for cross-training and to discuss recent developments and future advancements in remote and in-situ visualization.

Sessions start at 10:00am CET on June 14-15. Connect to the Live Stream.

Our Video Sunday feature continues with a new visualization created by the Advanced Visualization Laboratory at NCSA that shows the dramatic evolution of hurricane Katrina.

“The video is a 36-hour time-lapse that shows the hurricane unfold in unprecedented detail, as it gathers momentum over the Bahamas. In the beginning, warm water evaporates from the ocean and condenses in the atmosphere to form storm clouds and rain. This process releases latent heat from the water vapour and warms the surrounding air, effectively feeding energy to the system. This sustains an area of extremely low pressure accompanied by warm air in the central eye, which causes powerful winds to spiral inwards. In this video, warm rising air is represented in yellow while colder sinking air is shown in blue.”