Please enable JavaScript.
Coggle requires JavaScript to display documents.
MAIN IDEA FROM LAB 15 ARTICLE (AIR MASSES ((A source region tends to be an…
MAIN IDEA FROM LAB 15 ARTICLE
AIR MASSES
An air mass is a large body of air that has relatively uniform temperature and moisture conditions at any given altitude.
An air mass forms when a portion of the air in the lower atmosphere stays over a
relatively uniform region of Earth’s surface.
According to the article, air above a warm ocean will be warm and humid, but above a cold ocean the air will be cold and humid. Air at higher latitude is cold and dry.
The area where an air mass forms is called its source region.
A source region tends to be an area of high atmospheric pressure, which is the force exerted by the weight of a column of air above a given point, and light winds.
FRONTS
A front is where 2 air masses meet.
THREE TYPES OF FRONTS
stationary front: is found
in an area where a warm air mass and a cold air mass move past each other.
cold front: when a cold air mass moves into an area that was
previously occupied by a warm air mass
warm front: occurs when a warm air mass
moves into an area that was occupied by a cold air mass
Weather changes when there is a front coming to a certain location.
CLOUDS AND FRONTS
SIGNS OF WARM FRONTS
wind can shift
Cirrostratus clouds appear as the warm front moves closer, which then blend into denser sheets of altostratus clouds.
cirrus clouds.
thicker
stratus and nimbostratus clouds appear and it begins to rain or snow.