Cloaked in Winter White

December 23, 2005

Bet_this_dog_is_panting_today

Provided and copyright by: Judy A Mosby
Summary authors & editors: Judy A Mosby

The snappy photo above showing a heavily frosted landscape near Lovelock, Nevada was taken in January of 2005. Rime ice in this area has long been referred to as "pogonip," a Shoshone term. Rime is the crystal deposition formed by the rapid freezing of supercooled fog or water droplets onto exposed objects. Along the Humboldt River Valley, ice fog often forms during the winter months, whenever a temperature inversion traps cold, moisture laden air close to the ground. On this morning, the accumulation was thick enough to resemble a veneer of snow on trees, fences and just about everything immobile. The healthy looking canine pictured here was evidently under cover during the pre- dawn hours, otherwise the "frost" would have been pogonipping at its nose.

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