Nate Smithers Perio d 8 Examinin g th e Ea rth Syst em MP2

Nate Smithers Perio d 8

Examinin g th e Ea rth Syst em MP2 .2

We Will Write a Custom Essay Specifically
For You For Only $13.90/page!


order now

The image of Africa in F ig ure 1 .8 B on p age 1 3 ma y ju st lo ok like a co ntin ent o n th e e arth

from a satellite in space. Bu t if yo u lo ok close r, yo u ca n ma ke ma ny co ncl usi ons about th e

weather and regions of Af rica . I ca n te ll w hich re gio n is domi nate d b y th e e quato ria l lo w a nd

which is controlled by the su b-t ro pica l h ig h b y lo oki ng a t ma ny clues. S om e o f th ese in cl ude

rainfall, which is dropped fro m clouds mo ving o ve rhead, ve geta tio n a nd w et a re as, a nd d ry and

hot areas.
The region of equato ria l lo w s in th is fig ure a re th e g re en a re as wit h a lo t o f ve geta tio n

and rainforests. These ar eas are p ounded w it h co nst ant ra in a nd p re ci pit a tio n th at a llo w s th ese

forests to thrive. It is very conve nie nt a nd e asy to fin d o n p ict ure s like th is exa mple b eca use th e

color allows us to see the se re gio ns. Al so , w it h p re cipit a tio n co mes lo ts of cl ouds and st orm s

which can be detected ea sily fro m a sa te llit e p ict ure . T he st orms and cl ouds sh ow e xa ctly where

the equatorial low is and h ow it fu nct io ns. C ontra st to id entif yi ng th e e quato ria l lo w , th e

subtropical high shows d if fe re nt ch ara cterist ics th at a llo w u s to se e it . In th is re gio n, d esce ndin g

air warms and dries as it desce nds, w hich ma kes th e cl ima te h ave ve ry clear ski es and d ry

weather. This region often time s has dese rts and ve ry dry are as th at co me fr o m th e w arm a ir

compressing. On figure 1. 8B, I ca n se e th e su btro pica l h ig h b eca use th ere is not m uch cl ouds

and it is represented by a d ese rt th at is ve ry dry.

The differences in th e b io sp here th at a re d omi nate d b y hig h p re ssu re a nd lo w p re ssu re

can also be seen from th is dia gra m. T he e quato ria l lo w h as a lo t o f st orm s and cl ouds which

represent low pressure b eca use th e a ir is tryi ng to cre ate e quilib riu m a t a re as of lo w p re ssu re .

The sub-tropical high is a re gio n o f h ig h p re ssu re. I ca n se e th is beca use in th e fig ure th is are a

has clear skies and is ver y dry. In a re as of h ig h p re ssu re th ere is clear ski es and d ry air .

This diagram not only sh ow s where co ntin ents are lo ca te d, b ut th ey allo w u s to se e w hat

climate these regions hav e a nd w hat e ffe ct s th ey have . T he e quato ria l lo w a nd su b-tr o pica l h ig h

have different levels of ai r pre ssu res, w hich in tu rn is why th ey have d if fe re nce s in th e

appearance in Figure 1.8 B.