advection fog的意思|示意

Advection fog, also called sea fog, is a special type of fog which forms when warm air passes over a cold water source. Unlike other more common types of fog, advection fog results due to the pushing of warmer air over a body of cold water. This fog typically occurs in coastal areas where two different temperatures meet, and it is a very common type of fog found along the California coast.

Advection fog is composed of tiny, microscopic water droplets dispersed in the air and is typically not visible until it reaches about 1,000 feet in altitude. This type of fog is often associated with light to moderate wind, as well as generally wet conditions.

Advection fog is most commonly encountered during the winter months and can last for several days. It is often mistaken for stratus clouds or a low-lying fog due to its dense, low lying appearance. Advection fog can create extremely hazardous driving conditions and can cause visibility to drop significantly in a very short period of time. It is not uncommon for advection fog to interfere with flight schedules and cause delays.

In order to combat the effects of advection fog, the National Weather Service issues warnings to the public to alert them to the dangerous driving conditions. Motorists should be wary of driving through fog-filled areas and should travel at reduced speeds. Additionally, light reflecting materials such as reflective tape can be attached to vehicles to increase visibility.