The air in Antarctica is frequently very dry.
The low temperatures mean that little or no water vapour is held in
the air, instead it freezes and falls out, or builds up on surfaces
as frost. Sometimes however depending on the particular atmospheric
conditions, the frozen water vapour remains in the air as suspended
ice crystals. In these conditions the crystals can reflect sunlight
in a variety of ways forming atmospheric phenomena of different types.
One of these phenomena is the "Solar
Pillar" seen above. The sun is reflected very strongly so that the reflection
is almost as bright as the sun itself. Like a rainbow, this sight is
dependent on where the light is coming from and where the observer is
standing. The pillar appears to move when the observer moves, but always
remains directly below the sun.
Paul Ward - Pentax equipment, 50mm
lens, 35mm film, K64.
This picture may not be copied or used in
any manner without prior written permission.