Hard frost
Encyclopedia
A hard frost, also called a radiational freeze or frost, occurs when the winds are calm and the sky is clear, allowing an inversion
to form because of rapid radiational cooling at the Earth's surface. When this happens the ground gets below freezing
, often killing plants.
Inversion (meteorology)
In meteorology, an inversion is a deviation from the normal change of an atmospheric property with altitude. It almost always refers to a temperature inversion, i.e...
to form because of rapid radiational cooling at the Earth's surface. When this happens the ground gets below freezing
Freezing
Freezing or solidification is a phase change in which a liquid turns into a solid when its temperature is lowered below its freezing point. The reverse process is melting....
, often killing plants.
See also
- Frost (temperature)
- Frost lineFrost lineThe frost line—also known as frost depth or freezing depth—is most commonly the depth to which the groundwater in soil is expected to freeze. The frost depth depends on the climatic conditions of an area, the heat transfer properties of the soil and adjacent materials, and on nearby heat sources...
- FrostFrostFrost is the solid deposition of water vapor from saturated air. It is formed when solid surfaces are cooled to below the dew point of the adjacent air as well as below the freezing point of water. Frost crystals' size differ depending on time and water vapour available. Frost is also usually...