Meteorology 7

Dew and Fog Dew and Fog are both formed by the condensation of water out of the air due to temperatures dropping below the dew point. Dew is the condensation of small water droplets on an object or surface as it cools to below the dew point. Fog is suspended tiny water droplets in a layer of air near the earth's surface that has cooled below the dew point.

Radiation Fog Ground Level fog caused by night-time radiation cooling forming on clear nights over swamps or wet land. Usually only a few meters thick lasting only a couple of hours after nightfall

Radiation Fog Ground Level fog caused by night-time radiation cooling forming on clear nights over swamps or wet land. Usually only a few meters thick lasting only a couple of hours after nightfall

Steam Fog Colder air being warmed as it passes over a warmer surface of water. Usually not very thick but can block some sunlight. Mostly occurring in the fall when lakes haven't cooled yet

Upslope Fog Fog caused by wind pushing moist air up a slope and therefore cooling below the dew point. It can persist for many days over a wide area

Upslope Fog Fog caused by wind pushing moist air up a slope and therefore cooling below the dew point. It can persist for many days over a wide area

Evaporation Fog Fog caused by additional moisture entering an air mass that is already very close to saturation

Advection Fog Ground level fog caused by advective cooling, warmer air being cooled as it passes over a cooler surface. Usually thicker and lasting longer than radiation fog

Advection Fog Ground level fog caused by advective cooling, warmer air being cooled as it passes over a cooler surface. Usually thicker and lasting longer than radiation fog

Impacts of Fog on RPAS Operations Fog is the formation of water droplets on the surfaces and its biggest impact is: moisture on electronic components very poor visibility Avoidance: be aware of the location in which you're flying be especially vigilant at dusk when temperatures drop and near bodies of water