climate terminology part 1 Flashcards
(30 cards)
what is adiabatic heating
as air descends it is compressed and heats up
advection
another name for wind
advection fog
air move over cold surface and condenses to form fog
agulhas current
sea current that is found along the south coast of SA
Air Mass
a parcel of air with the same characteristics as the air around it
anabatic wind
wind that blows up the side of a valley during the day
anticyclone
another name for a high pressure cell. Air that is descending
Aspect
relationship (angle) between the surface of the earth and the angle of the suns rays
Berg wind
hot dry wind that blows from the interior towards the coast
coastal low pressure
small low pressure found along coastal areas,associated with berg wings
cold benguela current
sea current that flows north along the west coast of SA
cold front
part of a mid latitude cyclone , seperates cold from warm air
convergence
air that come together at a point
convection current
vertically moving air
coriolis force
air gets deflect by the earth spinning at different speeds at different latitudes
cumulonimbus clouds
clouds associated with heavy rain ( mid latitude cyclone )
cumulus clouds
clearing showers
cyclone
is a low pressure cell
depression
another name for a low pressure or cyclone
dissipate
weakens or ends
divergence
air moves apart or away
front
line that separates 2 air masses
frost pocket
very cold parcel of air usually found at the bottom of a valley
heat island
warm parcel of air , surrounded by cooler air. Usually found near a city