Fog

Light fog in Bangladesh

Fog is a visible aerosol consisting of tiny water droplets or ice crystals suspended in the air at or near the Earth's surface.[1][2] Fog can be considered a type of low-lying cloud usually resembling stratus, and is heavily influenced by nearby bodies of water, topography, and wind conditions. In turn, fog affects many human activities, such as shipping, travel, and warfare.

Fog appears when water vapor (water in its gaseous form) condenses. During condensation, molecules of water vapor combine to make tiny water droplets that hang in the air. Sea fog, which shows up near bodies of saline water, is formed as water vapor condenses on bits of salt. Fog is similar to, but less transparent than, mist.

  1. ^ Gultepe, Ismail, ed. (2 January 2008). "Fog Visibility and Forecasting". Fog and Boundary Layer Clouds. Springer. p. 1126. ISBN 978-3-7643-8418-0. Archived from the original on 3 September 2016. The international definition of fog consists of a suspended collection of water droplets or ice crystal near the Earth's surface... Reprint from Pure and Applied Geophysics. 164 (6–7). 2007.{{cite journal}}: CS1 maint: untitled periodical (link)
  2. ^ "What's the Difference Between Fog and Clouds?". NOAA. 2022.