Presentation

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Perpetual Ocean 2: Western Boundary Currents
SessionElectronic Theater (separate ticket required)
DescriptionThis is a scientific data visualization of ocean currents around the world based on the ocean model, Estimating the Circulation and Climate of the Ocean (ECCO). The visualization is a tour of major currents of the world including western boundary currents and includes both surface and deep currents.
Premiere StatusWorld Premiere: Submissions that have not screened publicly before SIGGRAPH 2025.
GenreScientific Visualization
CountryUSA
LanguageEnglish
InnovationWe scatter hundreds of millions of particles; ocean current velocity data is read; and particle locations are updated. Our density balancing algorithm adds particles in evacuated areas and removes particles in dense areas. Density balancing is coupled with a level of detail promotion/demotion scheme for a nearly seamless visualization.
ToolkitMac laptops for coding and Houdini; linux blades (mostly Dell) for data processing and rendering
Creators
Gregory Shirah
Director, Visualizer
NASA Scientific Visualization Studio
NASA Goddard Space Flight Center
Horace Mitchell
Visualizer
NASA
Atousa Saberi
Visualizaer
NASA
Event Type
Computer Animation Festival
TimeMonday, 11 August 20256:15pm - 8:30pm PDT
LocationWest Building, Ballroom AB
Session TimeMonday, 11 August 20256:15pm - 8:30pm PDTWednesday, 13 August 20256:15pm - 8:30pm PDT
LocationWest Building, Ballroom AB
Recordings
Not Livestreamed
Not Recorded
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