Rime - Morning walk through the forest

Rime - Morning walk through the forest

It was really cold this morning, but the hoarfrost on the trees was so strong and looking beautiful, that we lured on a small walk, for sure well dressed.

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Hoarfrost is a solid precipitate formed from submerged water droplets of a light mist or directly from the water vapor contained in the air by resublimation.

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This requires a very high relative humidity of over 90% and an air temperature of below -8 ° C.

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The phenomenon of the formation of hoarfrost occurs comparatively rarely and is often confused with hoarfrost or rime, for which it is a kind of intermediate stage.

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The resulting heat is thereby released by convection to the surrounding air, so wind increases the formation of hoarfrost.

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The wind must not be too strong, as it otherwise would destroy the sensitive structures.

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Above all, contrary to the direction of the wind, needle-shaped ice crystals occur in the form of six-beamed dendrites, which can reach a considerable size and bizarre shapes and usually grow only slowly.

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Hoarfrost grows against the wind, as the air coming in on the lungs side carries a higher degree of moisture than in the lee.

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A special form of hoarfrost are ice flowers. Tree damage caused by hoarfrost is referred to as a fragrance break in forestry.

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