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Accretion is defined as the gradual collection of something over time. [1] In meteorology or atmospheric science it is the process of accumulation of frozen water as precipitation over time as it descends through the atmosphere, in particular when an ice crystal or snowflake hits a supercooled liquid droplet, which then freeze together ...
The ice accretion indicator is an L-shaped piece of aluminium 38 cm (15 in) long by 4 to 5 cm (1.6 to 2.0 in) wide. [ 1 ] [ 2 ] It is used to indicate the formation of ice , frost or the presence of freezing rain or freezing drizzle .
The warning covers Waterloo and Cedar Rapids for as much as 0.2-0.3 inches of ice accretion. A Winter Weather Advisory that spans several Midwest states has also been issued.
In astrophysics, accretion is the accumulation of particles into a massive object by gravitationally attracting more matter, ... (sublimation) of buried ice.
An ice storm warning is a hazardous weather statement issued by the Weather Forecast Offices of the National Weather Service in the United States which indicates that freezing rain produces a significant and possibly damaging accumulation of ice on surfaces.
Any ice accretion is dangerous for motorists and pedestrians. The ice may be so thin as to appear wet, and various textures of the ice may provide traction in one spot but be extremely slippery in ...
The Wegener–Bergeron–Findeisen process (after Alfred Wegener, Tor Bergeron and Walter Findeisen []), (or "cold-rain process") is a process of ice crystal growth that occurs in mixed phase clouds (containing a mixture of supercooled water and ice) in regions where the ambient vapor pressure falls between the saturation vapor pressure over water and the lower saturation vapor pressure over ice.
In glaciology and civil engineering, Stefan's equation (or Stefan's formula) describes the dependence of ice-cover thickness on the temperature history. It says in particular that the expected ice accretion is proportional to the square root of the number of degree days below freezing. It is named for Slovenian physicist Josef Stefan.