effective flow visualization (not modeling)
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Effective Flow Visualization
(NOT Modeling)Colin Ware
VisLab CCOM UNH
StaffKurt Schwehr (Google Earth, COF)Roland Arsenault (GeoZui4D)Briana Sullivan (Flow vis)Matt Plumlee (COF)StudentsPete Mitchell (Flow vis)Stephan Schaeffer (Flow vis)Dan Pineo (Flow vis).
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We can do better than this
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2D Flow visualization• A landmark study Laidlaw et al
- Image courtesy of D.Laidlaw et al. (2001)
OrientVSBMagnitude
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Perceptually optimize forSome sub-set of task
requirements
An optimization process (NSF ITR)
Identify a visualizationMethod and a paramaterization
Streaklets:A generalizedFlow vis technique
Characterize solutions
Define task requirementsAdvection path perceptio
Magnitude perceptionDirection perception
Human In the Loop
Actual solutionsGuidelinesAlgorithmsTheory
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Production software
Flow Model GriddedFlow
InteractiveDesigner
Renderer
Source fileRegionBackgroundEtc
Renderingparms
Images
ObjectiveTest Module
Grib2, NetCDF
Ofs modelsFVCOMHYCOMetc
Config
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Next stepsIntegration into NowCoast with geotifoutputAnimated output
Next steps3D flow vis and marine mammals
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Marine Mammals and Currents
Flow directionInternal wavesFronts
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3D Flow Visualization Package for Operational Forecast Models
Status: Has 3D/2D modes.Particle dye poles.Streaklet Field or Particle fieldTemp/salinity profilesWorks with space mouse.
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Plans
Flow Model GriddedFlow DB
BiologicalData
VisualizationAnd Analysis
Images
and
Statistics
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Plans
Integrated Atmospheric and Ocean flow visualization. (Carlos Lozano, NCEP)Integrating flow models with behavior data (e.g. whales).
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Interactive exhibits
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ToolsDyepotsStreaklet flields (for overall patterns)
Each streaklet is a pathline traversed as time progresses – can be moved up and down
StreakPots to emphaize major currentsSize Pots – equatorial upwelling
Can be used to “paint” in the flow model and reveal flow patterns