Caustic Networks in Warm Pools

Caustic networks in warm pools Caustic networks in warm pools

Shallow clear water and just the right wind conditions provided these strong patterns at the edge of a large hot pool. The patterns disappear in the shallower water near the edge.

The blue background of this hot spring plus the complicated network provided some interesting patterns.

Caustic networks in warm pools Caustic networks in warm pools

Bacterial mats in cooler water provided the honey coloured background. Here the pattern is complicated by fine ripples on a longer wavelength network.

Bacteria in different water temperatures provided the background colours for this caustic network.

Caustic networks in warm pools

Brown bacteria provided the background while the flow of water controlled the wave pattern. The larger waves were about 10cm apart.


Canon EOS 20D   2nd July 2007
Yellowstone National Park

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