Download Generalized Pattern of Global Winds

Survey
yes no Was this document useful for you?
   Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Document related concepts
no text concepts found
Transcript 
Generalized Pattern of Global Winds
The general pattern of atmospheric circulation has 7 components, which are
replicated north & south of the equator:
1) polar high pressure - bet. 80° & 90° N & S latitude; zone of high pressure with
variable
winds and cold & dry air
2) polar easterlies - bet. 65° & 80° N & S latitude; northeast in N.H. & southeast in S.H.
3) subpolar low pressure - bet. 60° & 65° N & S latitude; contains the polar front; zone of
low pressure with rising air, widespread cloudiness, precipitation, stormy weather
and cool & moist air
4) westerlies - bet. 35° & 60° N & S latitude; southwest in N.H. & northwest in S.H.
5) subtropical high pressure - bet. 30° & 35° N & S latitude; zone of high pressure with
an
absence of wind (horse latitudes) and hot & dry air
6) trade winds - bet. 5° & 30° N & S latitude; northeast in N.H. & southeast in S.H.; blow
most of the time in the same direction & speed, day & night, summer & winter
7) intertropical convergence zone (ITCZ) - bet. 5° N & S of the equator; zone of low
pressure with weak horizontal air flow (the doldrums) and warm & wet air
Related documents