This is sea-ice in the very early stages of formation.
Sea-ice that forms in situ and is attached to the coast is called
"fast-ice", it is stuck fast. In this picture the surface of the
sea is beginning to freeze as the temperature is dropping to -20°C
and below. Pack ice has come near to the shore and so all movement
of the sea has been killed completely allowing low temperatures
to freeze the sea water.
At this stage the ice is around an inch
(2.5cm) thick but it has a spongy texture, you could poke a finger
or certainly a fist through it relatively easily. The patterned
effect comes from the rise and fall of the tides. As the tide rises,
so the surface of the sea enlarges slightly and so the ice cracks
apart, as the tide falls, so the surface of the sea decreases slightly
and so the slabs of ice overlap at the edges.
Paul Ward - Pentax equipment,
50mm lens, 35mm film, K64.
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or used in any manner without prior written permission.