Evaporation fog formed when water vapor is added to air which is much colder than the vapor's source; most commonly, when very cold air drifts across relatively warm water; also called steam fog.
Evaporation fog produced above a surface of open water when the air is stable and relatively cold (for example, air which has moved over stretches of ice). syn. antarctic sea smoke, arctic sea smoke
A fog that forms when an outbreak of cold air settles over an expanse of open, relatively warmer water, reducing visibility to less than 1 kilometre. Also known as steam fog. (See also arctic sea smok
e, and advection fog or sea fog)
The cumulative number of degree-days below 0˚C, calculated as the arithmetic sum of all the negative and positive mean daily air temperatures (˚C) for a specific station during the time period between
the highest point in the fall and the lowest point the next spring on the cumulative degree-day time curve
The cumulative number of degree-days below 0 degrees Celsius, calculated as the arithmetic sum of all the negative and positive mean daily air temperatures (degrees Celsius) for a specific station dur
ing the time period between the highest point in the fall and the lowest point the next spring on the cumulative degree-day time curve.