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Sublimation

Meteorology Strong thunderstormSubpolar

Sublimation - A phase change of water directly from ice to water vapor without melting.

 


Sublimation - the process of changing from a solid directly to vapor or gas
Subsidence - sinking (downward) motion in the atmosphere, usually over a broad area ...

sublimation—The change of (a) ice to water vapor or (b) water vapor to ice. See latent heat.
Chinook—A warm, dry joehn wind blowing down the eastern slopes of the Rocky Mountains over the adjacent plains in the U.S. and Canada.

Sublimation
The phase change from a solid to a gas. The opposite of crystallisation.
Subsidence ...

Sublimation: The transition of a substance from the solid phase directly to the vapour phase without being in the liquid phase. The opposite of sublimation is deposition.

sublimation - The process of phase transition from solid directly to vapor in the absence of melting. Thus an ice crystal or icicle sublimes under low relative humidity at temperatures below 0°C.

SUBLIMATION
The process of a solid (ice) changing directly into a gas (water vapor), or water vapor changing directly into ice, at the same temperature, without ever going through the liquid state (water). The opposite of crystallization.

Sublimation The process whereby ice changes directly into water vapor without melting.

Sublimation The process whereby water changes phase from a solid into a vapor without first becoming liquid.

Sublimation- The change from ice directly to water vapor or from water vapor to ice with out going through the liquid water phase.

Sublimation
In this process water vapor turns directly into ice without going through the liquid stage. Clouds frequently contain water droplets which may exist as water even at levels where temperatures are below freezing.

sublimation- the change of ice to vapor or vapor to ice without a liquid phase.

Sublimation
The change ice crystals directly into water vapour without passing through the water stage.
Subsidence ...

SUBLIMATION - Phase change from a solid to a gas, without going through the liquid phase. Ice evaporating directly to water vapor is said to be "SUBLIMING". See also DEPOSITION.

Evaporation/sublimation
Water vapor condensing over a cup of hot tea
Whenever a water molecule leaves a surface, it is said to have evaporated. Each water molecule that becomes water vapor takes a parcel of heat with it.

ablation (glacial) All processes, which include melting, evaporation (sublimation), wind erosion, and calving (breaking off of ice masses), that remove snow or ice from a glacier or snowfield.

Bowen RatioFor any moist surface, the ratio of heat energy used for sensible heating (conduction and convection) to the heat energy used for latent heating (evaporation of water or sublimation of snow). The Bowen ratio ranges from about 0.

Examples include condensation and sublimation. LATITUDE The location north or south in reference to the equator, which is designated at zero (0) degrees. Parallel lines that circle the globe both north and south of the equator.

Evaporation is usually restricted in use to the change of water from liquid to gas, while sublimation is used for the change from solid to gas.

firn"Old snow that has become granular and compacted (dense) as the result of various surface metamorphoses, mainly melting and refreezing but also including sublimation. The resulting particles are generally spherical and rather uniform.

The rate of ice accumulation is slightly greater than the rate of sublimation. It is not hazardous even though de-icing/anti-icing equipment is not utilized, unless encountered for an extended period of time--over one hour.

Hoarfrost A deposit of interlocking ice crystals (hoar crystals) formed by direct sublimation on objects, usually those of small diameter freely exposed to the air, such as tree branches, plant stems and leaf edges, wires, poles, etc.

Ice Fog Occurs when the temperature is much below freezing and water vapor condenses directly as ice crystals (sublimation).

A covering of ice produced by deposition (sublimation) on exposed surfaces when the air temperature falls below the frost point (the dew point is below freezing).
Frost point(6)
See Dew point.

LATENT HEAT The energy released or absorbed during a change of state. Related terms: condensation and sublimation ...

FROST
The covering of ice crystals that forms by direct sublimation on exposed surfaces whose temperature is below freezing.

Firn
Old snow which has become granular and dense under the action of various processes of melting and refreezing, including sublimation.

fusion) is the amount of heat energy release to the environment when a gas changes its state to a liquid. For one gram of water, the amount of heat energy released is 540 calories at a temperature of 100 degrees Celsius. Latent heat of sublimation ...

Frost Heaving "Frost heaving" is the lifting of a surface by the internal action of frost. It generally occurs as a result of freeze-thaw cycles. It can also occur, to a lesser extent, by sublimation ...

or balls of ice more than 5 mm in diameter, falling from a cumulonimbus cloud.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Bergeron Process, Border Ice, BRD, Diamond dust, PL, Shore ice, Sublimation of ice ...

latent heat of sublimation
water molecules absorb 680 calories per gram to change from the the solid (ice) state to the gaseous (water vapor) state ...

Frost Ice crystal deposits formed by sublimation (conversion of water vapor directly to ice) when temperature and dew point are below freezing.

See also: Surface, Air, Water, High, Temperature

Meteorology Strong thunderstormSubpolar

 
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