Page 129 - SST Class 07

area in a significant manner. A warm current the reason that ships like to sail along the ocean
raises the temperature of the coastal areas, while a currents.
cold current brings it down. For example, the Gulf The place where a cold and a warm currents meet
Stream is a warm current which makes the
is the best place for fishing because fishes breed
European coastal areas warm; while the Kurile there a plenty. But this place is also dangerous
Current makes winters in northern Japan severe
because a lot of fog is produced causing poor
and long.
visibility where a lot of accidents take place. A
The winds blowing over a warm current is fully warm current also melts an iceberg.
laden with moisture, resulting in heavy rainfall to
the nearby coastal areas; while the winds blowing Just Think!
over a cold current are not moist, so they make
the nearby coastal areas dry and cold. Is there a need to conserve water? If yes, how can
It is faster and easier to sail along an ocean you as a conscious citizen, conserve water?
current, while it is difficult to sail against it. This is
ARCTIC OCEAN ARCTIC OCEAN
Greenland
current
Labrador
Kamchatka North Atlantic
(Oyashio) current drift
current e EUROPE
k curr nt
Alas a
ASIA
NORTH AMERICA
North Pacific current NORTH ASIA
California ATLANTIC
Japan NORTH PACIFIC OCEAN current OCEAN Canary
(Kuroshio) Gulf current
current Stream North Equatorial
r
N rth Eq uator a i l cu re t n current AFRICA Monsoon
o
drift
u er cu r t
E quator a i l co nt r en Equatorial counter
current
c r
South E quator ial ur ent South Equatorial Equatorial
current counter current
SOUTH AMERICA South
Equatorial current
INDIAN OCEAN Benguela
East Brazil
AUSTRALIA Australian Peru current SOUTH current
current current ATLANTIC Mozambique
West OCEAN current
Australian SOUTH PACIFIC OCEAN
current
Falkland W est Wind drift
current
West Wind drift SOUTHERN OCEAN
SOUTHERN OCEAN Warm current
ANTARCTICA Cold current
Ocean currents
v We have only 0.70 percent of water available to us, so we should conserve it.
v The water in oceans and seas is saline due to salts, minerals and other impurities.
v The five oceans are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Arctic Ocean and the
Southern Ocean.
v A wave is caused due to wind; in it, water particles do not move, only wave movement is transported.

v A tsunami is a destructive wave which may be caused due to an underground earthquake, landslide or
eruption of a volcano.
v Tides occur due to the force of gravitation of the moon and the sun.
v An ocean current is like a river or stream in the sea.

The Hydrosphere
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