Capt. Kang Chul-joo
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Sea fog (also known as haar or fret) is heavily influenced by the presence of sea spray and microscopic airborne salt crystals. Clouds of all types require minute hygroscopic particles upon which water vapor can condense.
Learn what sea fog or lake fog is, how it forms, and how it can affect your safety on land or water. Find out when and where fog over water is most likely to occur and how to prepare for it.
Learn how sea fog forms when warm, moist air moves over colder water and cools to its dew point temperature. Find out how to forecast sea fog events and their impact on marine operations in the northern Gulf of Mexico.
- Radiation fog. Radiation fog usually occurs in the winter, aided by clear skies and calm conditions. The cooling of land overnight by thermal radiation cools the air close to the surface.
- Valley fog. Valley fog forms where cold dense air settles into the lower parts of a valley, condensing and forming fog. It is often the result of a temperature inversion, with warmer air passing above the valley.
- Advection fog. Advection fog occurs when moist, warm air passes over a colder surface and is cooled. A common example of this is when a warm front passes over an area with snow cover.
- Upslope fog. Upslope fog or hill fog forms when winds blow air up a slope (called orographic uplift). The air cools as it rises, allowing moisture in it to condense.
Learn about coastal fog, a type of fog that forms when moist air moves over a cooler sea surface. Find out how coastal fog affects the weather, visibility and marine life.
Oct 19, 2023 · Learn about fog, a cloud that touches the ground, and its types, causes, and effects. Sea fog is formed as water vapor condenses around bits of salt near bodies of salty water.
Aug 13, 2014 · A fishing-boat crew smuggles a group of Chinese refugees to Korea, but faces tragedy and violence in the fog. Based on a true story, this film is co-written by Bong Joon-ho and directed by Sung-bo Shim.
