Definition of the Day
Atmospheric Instability
A condition in the atmosphere where air parcels are heated and therefore are warmer than the surrounding atmosphere resulting in unstable weather conditions such as heavy rains and hailstorms. See Atmospheric Stability & Instability

Forest and Lake Climates

Forest Climates

Forest climates often exhibit gentle cool temperatures.This is particularly because most insolation is trapped and reflected on top of the canopy layer reducing the ammount of heat reaching the forest floor.In addition to cool temperatures more evapotranspiration from trees means more moisture around forest areas,and the heat used for evaporation also implies low temperature.

Precipitation in forested air is often high.This is due to high ammounts of moisture released by evapotranspiration from trees.

This can be seen in tropical rainforests such as the Amazon and Congo Rainforests.

Windspeed and direction is often reduced by friction and deflected by trees respectively.

Small Water Body Climates

Small water bodies such as lakes,rivers and dams also have their own climates.Small water bodies have high albedo values than adjacent land areas,this means small ammounts of heat are absorbeb.In addition,during the day water bodies absorb heat more slowly(high specific heat capacity than adjacent land areas.This sets up breezes from the water body(cool) to the land(warm) and during the night land(cold) to sea(warm)(See Land-Sea Breezes

Moisture along water bodies is high due to evaporation during the day.Consequently precipitation tends to be high if parcels of air are forced to rised.

Because of water smoothness wind speeds are high and direction is also unhindered

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