- Here's what happens when warmer water (green) enters the surface
of a lake in winter. The second addition shows that the warm water
is buoyant (less dense) than the cold water and therefore rises.
- Here's what happens when colder water enters a summer-stratified lake.
- Same as movie 2 without the dyed green epilimnion.
- See what happens to the epilimnion (mixed layer) and thermocline
during a storm. Did the lake mix?
- Same as movie 4, but with increased turbulence. See what starts
to happen when the class 5 tornado hits.
- Shows how stream sediment entering a lake or reservoir deposits
its load. Why does some material stay in the upper layer and some
crash to the bottom?
Movie 7 (above)
- Same as movie 7, but here we introduce water that is saltier
than the upper freshwater layer. Example: Hurricanes can "throw" huge
amounts of saltwater into coastal lakes. What happens to this water
and what might its impact be?