|Great Lakes surface currents around the afternoon of 3 October 2012, from Fernanda Viégas and Martin Wattenberg via OurAmazingPlanet.|
The earlier version of that visualization has been very cool to look at during major weather events, such as landfalling hurricanes. They've stored some dynamic snapshots of these in a gallery for visitors to look at these events.
|Visualized wind currents over the continental US on the evening of 29 October 2012, around the time Hurricane Sandy made landfall,|
from Fernanda Viégas and Martin Wattenberg.
Check these out! I think this would be awesome for small-scale visualization of currents in a river, or using a DEM to calculate the flow of water from rainfall to runoff to streams through a watershed. I could sit and stare at these for hours...