Transcript malinii-climate-of-india

Subject: Geography
For Class : VI
Variations In Climate
Varied land forms features
Vast Latitudinal extent
The Tropic of
Cancer passes
through India
dividing it into two
halves .
. Northern half lies in
The
the Temperate Zone
The Southern half lies in the
Tropical zone.
High range
of Temp
High Temp
Low range
EQUATORIAL REGION
ALTITUDE
Temperature decreased
from low to high altitude
HIGH ALTITUDE
AGRA
160C in Jan
LOW ALTITUDE
Some places like Agra
and Darjeeling lie on the
same latitude but as
Darjeeling is situated at a
higher altitude are colder
than places in the plains.
Darjeeling
40C in January
FACTORS AFFECTING INDIAN CLIMATE
•The Himalayan Mt.
•Surrounding Seas
•Relief Features
•Distance from Sea
Factors Affecting Climate of India
The Himalayas
• In winters act as a
barrier against the
bitterly cold winds
from the Arctic .
• In summer they trap
the monsoon winds
and bring rain to
India.
THE HIMALAYAS- CLIMATIC BARRIER
RELIEF
Receives high
rainfall
Western slopes of
the Western Ghats
get very heavy
rain fall.
Receives low
rainfall
Places to the East
receive low rain
fall.
DISTANCE FROM SEA
SIMLA
DELHI
KOLKOTA
MUMBAI
CHENNAI
Coastal areas have moderate climate where as
Interior parts have extreme climate.
RHYTHM OF SEASONS
HOT WEATHER
COLD WEATHER
RETREATING MONSOON
SOUTH WEST MONSOON
Winter Season
► It extends from December to
February.
► Average temperature in the
Northern Plains is between 10° C
and 15°C
► North India experiences intense
cold.
► .There is light rainfall during
winter.
► This is caused by Cyclonic
storms which originate from the
Mediterranean sea and Travel
towards India These winds are
WESTERN DISTURBANCE
► Occasional tropical cyclone visit
eastern coast in this season.
•
They cause heavy snowfall in
the Himalayas and rain in the
plains.
WIND DIRECTION- WINTER
Tropical cyclone
WINTER RAINFALL
RAINFALL DUE
TO WESTERN
DISTURBANCES
RAINFALL DUE
TO NORTH EAST
WIND
The Summer Season
 Summmer starts from April and
lasts till June.
Northern Plains record highest
temperature.
Deccan is comparatively cooler
The hot dry wind LOO blows
over Northern Plains.
Kalbaisakhi Occurs in West
Bengal and Assam.
Mango showers occur in
Karnataka and Kerala
SOUTH WEST MONSOON
SEASON
► It extends from June
to September.
► Intense heating in
north
west
India
creates low pressure
region.
► Low pressure attract
the wind from the
surrounding region.
► After having rains for
a few days sometime
monsoon
fails
to
occur for one or more
weeks is known as
break in the monsoon.
HIGH
LOW
TEMPERATURE
PRESSURE
MONSOON WIND
Arabian sea
Branch
Bay of Bengal
Branch
EQUATOR
ONSET OF SW MONSOON
RETREATING MONSOON SEASON
► It
extends
from
October to November.
► In
October
the
temperature
starts
dropping there is LOW
PRESSURE ZONE in
Northern India and
cannot
attract
monsoon winds.
► The south -west winds
retreat gradually.
► They blow from land to
sea.
► They do not cause any
rain
except
in
Tamilnadu.
LOW PRESSURE
DISTRIBUTION OF RAINFALL
► Broadly
,India
can be divided
into Four rainfall
regions
► Very
rainfall
►
►
►
heavy
heavy rainfall
moderate
rainfall
scanty rainfall
> 200cm
100-200cm
50-100 cm
< 50cm
Very heavy rainfall
regions:more than 200cm
Of rain in a year.
• the Western Coastal
Plains
• The western slopes of
theWestern Ghats.
• Most of the northeastern
states.
Heavy rainfall regions
:between 100to 200cm
of rain in a year.
• The Ganga plains in
Bihar and West Bengal.
• The Himalayan region.
• The Northwestern part of
the Peninsular Plateau
• Parts of the Western
Ghats.
• The east coast and the
north east India
Moderate rainfall region:
Annual rainfall between 50—
100cm
Scanty rainfall region
lessthan 50 cm
• The upper Ganga plain
• Eastern Rajasthan
Punjab Haryana and
Soutern Kashmir
• Parts of the Deccan
Plateau –Karnataka,
Andhra Pradesh&
Tamilnadu.
• Western Rajasthan
Southern Punjab and
Northern Gujarat.
• Eastern slopes of the
Western Ghats.
• Northern Parts of
Kashmir.
HOT WEATHER SEASON
May 480C
April 380C
March 300C
TEMPERATURE- JULY
250C
300C
Let’sEvaluate
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Mention the Three factors which affect India’s climate.
Why are the Himalayas important in determinig India’s climate
Give the four Major seaons of India.
What are western disturbances in which area do they cause rain?
Which months are known for the retreating monsoon?
Which is the rain shadow area?
Name the four rainfall regions.
Which region receives the the least amount of rainfall.
CLIMATE CHANGE & INDIA
► India has long coast line
and rise of sea level will
submerge large area.
► A population of 7.1
million living in coastal
areas will be affected.
► Production of crops like
wheat, rice etc will
decrease.
► The natural disasters
like cyclone, floods and
drought will increase in
frequency as well as
intensity.
KOLKOTA
MUMBAI
CHENNAI
Prepare a power point presentation: showing the
distribution of rainfall .
how life is affected with excess rain or draught.
 Read and record the rainfall and temperature
data of your city for 15days and make a
graph.
► Study this years rainfall and compare it with
Last year.
Prepare a ppt. answering the following:
► Explain Monsoons its advantages
► www.climateofindia.pbwiki.com
► Prepare for a group discussion .Change in Climate
in India.
► Prepare an analysis of yearly temperature and
rainfall data by using different graphs and upload it
to www.climateofindia.pbwiki.com.
► Collect photographs of monsoon and upload to or
www.climateofindia.pbwiki.com.