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Environmental Hydrology


1) Three Virtual Director users examine Chesapeake Bay

2) West is up, north to the right, as the animation begins. 
Data from Glen Wheless and Cathy Lascara, Center for Coastal Physical Oceanography, Old Dominion University. Of these data, Glen writes: 
The isosurface shows the position of a particular value of a tracer which simulates the position of a patch of larval fish. The color represents the salinity at that location, red being very saline and yellow being more fresh. The simulation is a 15 day run, tides are semi-diurnal, in other words, 2 highs, 2 lows per day. Winds originally blow from SW to NE then reverse, simulating a low passage or northeaster. You can see how the wind blows the 'fish' away then back to the mouth of the bay where the tides then act to bring some of the fish into the Bay, possibly serving as a mechanism for retention. 

3) Virtual Director snapshot: animating the Chesapeake Bay

VR Collaboration 
with environmental hydrology group at Old Dominion University and NCSA.  Click on link to access the MPEG movies.


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Cave5D 2.0 displays Chesapeake Bay bathymetry and measured time-dependent turbidity and waterflow across a bay transect.