Summary Cambridge International AS and A Level Geography second edition - Global interdependence Trade flows and patterns
Summary Cambridge International AS and A Level Geography second edition - Economic transition Globilisation
Summary Cambridge International AS and A Level Geography second edition - Economic transition Employment structures
All for this textbook (17)
Written for
A/AS Level
CIE
Geography
Arid environments
All documents for this subject (4)
Seller
Follow
emilyalexandrarussell
Content preview
A R 1 D l T Y IN DE ✗
WAGONER BABBAGE
qq.IE?:: : : : : :. . . .
ratio of average precipitation (D) to
a
potential evapotranspiration (Etp )
water losses due to evaporation i☒%*eµµ :
into account 0.03 Etp
and arid ✗
transpiration Pless than
→
hyper
⑧µ⑧&/④fÉ⑧☒
P between 0.03 and 0.2 ✗
Etp
avid →
0.20 and as ✗ Etp
semiarid -
op between
Ñ⑤§¥gg
could depends the amount of water
¥
occur on " ""
explanation
available soil moisture
-1
which receives less EVAPOTRANSPIRATION ( PE)
yearµjµy
/i. till > E
an area
rainfall per
= POTENTIAL
'
f deficit
extreme -
than zsovum of
6 Im GOD
-1020,8
-
p=o aridity , 12 p E through
'
P greatly exceeds E
-
-
consecutive
between measures the
amount Among hout out the
ye.at/
an area receiving this year throughout the year
51=-1%1 E rainfall annually that soi , PE
the months ago :p
of evapotranspiration
zso -500mm of moisture
← potential
would take place with a limitless
surplus evapotranspiration
less than
1:41 Eli lil :( 1
'
, :
izsmm per year SUPPLY of water
←
ARID SEMI ARID SUB - HUMID HUMID
.
WHEN p =
PE throughout year
↳ index is 0
. When P = 0 throughout year
↳ index is -60 Index -60 -56 -40 -20 0 +100
PE
WHEN greatly exceeds
P
4% 15% 14% percentage of total world land mass
throughout the year
v0 index is 100
so :
⑧-⑥0⑥PAfÑ⑧f⑧W semiarid
Arid is -56
is -40s Im
< I'M s -
< -20
40
arid is
located between 20 -30° Nes Hyper c- SGIM
µgµµÑ§dµµµ¥☒ѵIµ=µ✓Ñ
µ µ ÑJfH
ARID environment are
of the equator )
semiarid are between 's -
• ones
→ west of continents
→ middle / centre of continents ⑧ AID GORAM ⑧ pimentos
→
bring cool dense air that displaces
↳µg
warmer air over the land
their is rain
BAA.AM BAHAMA
→ whilst no .
there
coastal which brings
is fog
some moisture high pressure
µdMy
" "" " "9 air condensation
cooling ,
warms and dries and rainon the
%\ Windward slopes
µµ>µ
B☒BµAfbIMµq µdµpg§
÷÷:µf¥*☒_B¥*¥☒ ÷,←÷i*j
on snore
µ
⑧ÑÑT
mab1et0MJgpemaFB@TTfgfAR1.D
"" "" "" "
yimnds
are
areas prevailing
no
in not arid
many
•
,
land to
*÷*m*☒←¥☒☒¥j÷*
winds are
blowing from
\ trade winds
MM
gea .
carry ante
semi *.
moisture
-
•
. -
COLD NE trade wind from N Africa to . .
Sahara
OCEAN
CURRENT
Atlantic influencing .
Rain shadow prevents moist air
↳
winds
called the Harmattan
µq• from arriving
the air is forced
to rise over mountains
☒k%⑥B¥µ☒AB②F④B§§§
.
CANARIES
( ↳ air cools and condenses forming
current ciouase rain
EG : ATACAMA DESERT ( Andes acts as a
zggµg§hMh&eµtina
barrier stopping SE trade winds
Hf
CALIFORNIAN
current
and Atlantic
arid semiarid
not and
found in the
⑧BABYAK BORKEN BAHMANI
.
FB
deserts are
and subtropics MP ☒ ADA : →
/£t£ CR BUT NBMfTAf BOTH
tropics
BEN " " "
that control
low pressure
€ yaon
?÷%I¥jgµfµJgµ
west cells
CURRENT due to Hadley
Mdgµ
PERUVIAN AUSTRALIAN between the
current the air circulating "
""
deserts are in the middle
many
current
equator and the tropics descending
limbo.
from rain
of continents far away
-
they are on the descending
limb
""
( winds
high pressure 30N
bearing
÷÷!YI¥fyÉ÷¥¥€¥ÉEqg
in
of the Hadley cell high
Desert in Australia
III. t.sk#-----*o
isw
eg simpson
:
Zones .
pressure compression o
WHY IS CAIRO DRY ? no rain
→ locatedaround 30N of the equator
→
descending limb of Hadley cell
-
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller emilyalexandrarussell. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $8.48. You're not tied to anything after your purchase.
