Hoarfrost vs Permafrost - What's the difference?
hoarfrost | permafrost |
Dew-drops which have undergone deposition and frozen into ice crystals to form a white deposit on an exposed surface, when the air is cold and moist.
Permanently frozen ground, or a specific layer thereof.
* 2003 , Johannes C. Nonner,
As nouns the difference between hoarfrost and permafrost
is that hoarfrost is dew-drops which have undergone deposition and frozen into ice crystals to form a white deposit on an exposed surface, when the air is cold and moist while permafrost is permanently frozen ground, or a specific layer thereof.hoarfrost
English
(wikipedia hoarfrost)Alternative forms
* hoar frost * hoar-frostNoun
(en-noun)See also
* dew * dew point * rime * glazepermafrost
English
Noun
(en noun)Introduction to Hydrogeology, ISBN 9026518706, page 157,
- Nevertheless, the water molecule is present, as ice, in a solid form in frozen soils or permafrosts , which cover large regions characterised by a polar climate.