Hi there ! Here's an interesting ppt on the topic - Drainage - the amazing gift of nature...which has been nurturing life on this planet for billions of years...Hope its worth your time :) Suggestions are always welcome :)♥

1. Have you ever wondered….
What is the mysterious secret behind the
beauty of the lakes ???

3. Have you ever wondered….
What is the mysterious secret behind the
beauty of the vast and unseemingly ending
oceans ???

5. Have you ever wondered….
How does the little element on Earth gives
life to over 100 billion people and is the soul
of living creatures worldwide ???

7. Have you ever wondered….
Why do we always find water closely
associated with the majestic and royal
powers of the almighty since time
immemorial ??

9. Is it some rocks and pebbles who broke their
hearts open to make way for the blue waters..???

10. Is it a mystery still locked and hidden in the
treasure of a fantasy forest??

11. So…get ready for
an adventure –
filled journey ☺☻
As we explore the topic of
…..

12. DRAINAGE
IN THIS PRESENTATION, WE SHALL LEARN
ABOUT THE GIFT OF NATURE – DRAINAGE .

13. So…what exactly is “Drainage”???
Is it the activity and
noise of the water
which keeps on
flowing from the
kitchen sink ???
Or is the activity of
the water which
keeps on flowing in
the drain near my
house ???

14. Well, while General English
might approve these terms to
be as “Drainage”, in
Geography Drainage holds a
very specific and compact
meaning.

15. DRAINAGE
• THE TERM “DRAINAGE” REFERS TO A LARGE SYSTEM OF
FLOWING WATER.
• YOU CAN IMAGINE IT AS A LARGE RIVER FLOWING BY
PASSING THROUGH YOUR HOME, WHICH LEAVES YOU
AMAZED AS IT NURTURES ALL FORMS OF LIFE.
• GENERALLY, ALL THE RIVER BODIES FINALLY END UP IN A
LONGER WATER BODY.

16. TYPES OF
UNDERLYING
ROCKS
SOIL CLIMATE RELIEF
HUMAN
ACTIVITIES
FACTORS AFFECTING DRAINAGE PATTERN

17. NATURE’S ♥BEAUTY♥ – A GORGE (A STREAM
SURROUNDED BY STEEP HILLS, LYING BETWEEN
MOUNTAINS AND HILS)

18. STREAM DRAINAGE
PATTERN
RADIAL AND
TRELLIS
PATTERN
RECTANGULAR
DRAINAGE
PATTERN
DENDRITIC
PATTERN
Lets study them in great detail…

19. • Develops when a river channel
follows the slope terrain.
DENDRITIC
PATTERN
• Develops when tributaries join a river
at right angles to each other
TRELLIS
PATTERN
• Develops when streams flow in
different directions from a central
peak – like structure.
RADIAL
PATTERN
• Develops on a strongly jointed rock
terrain.
RECTANGULAR
DRAINAGE
PATTERN
DEVELOPMENT OF THE
STREAM PATTERNS

20. • Forms a tree-like pattern when seen with
its rivers and tributaries. Thus, it is named
as “Dendritic” (branch like structure)
DENDRITIC
PATTERN
• Usually forms where hard and soft rocks
occur alternatively or nearly parallel to
each other.
TRELLIS
PATTERN
• Forms a volcano – like structure and is
the most beautiful and unique of all the
patterns.
RADIAL
PATTERN
• Consists of a combination of several
patterns in the same drainage basin.
RECTANGULAR
DRAINAGE
PATTERN
CHARACTERISTICS OF THE
STREAM PATTERNS

21. • The Ganga Basin
DENDRITIC
PATTERN
• The Narmada River System
TRELLIS
PATTERN
• Although beautiful, are found on a
small scale in the Aravalis or at the
hilly terrains of Central India.
RADIAL
PATTERN
• The Narmada River System
RECTANGULAR
DRAINAGE
PATTERN
EXAMPLESOF THE STREAM
PATTERNS

22. Hey…But what
happened???

23. As we can see, the river forms both the
patterns as it flows.
(River Narmada )
RECTANGULAR DRAINAGE SYSTEM IS A BROAD CATEGORY THAT
COVERS A COMBINATION OF SEVERAL PATTERNS.

24. A FINAL LOOK – IN BEFORE WE PROCEED ☺☻

25. LOWER
COURSE
MIDDLE
COURSE
UPPER
COURSE
COURS
ES OF
RIVERS

26. LETS MOVE
FURTHER…

27. THE HIMALAYAN RIVERS
• INDUS RIVER SYSTEM
• GANGA RIVER SYSTEM
• BRAHMAPUTRA RIVER
SYSTEM
THE PENINSULAR
RIVERS
• THE NARMADA RIVER
SYSTEM
• THE TAPI RIVER
SYSTEM
• THE GODAVARI RIVER
SYSTEM
• THE MAHANADI RIVER
SYSTEM
• THE KRISHNA RIVER
SYSTEM
• THE KAVERI RIVER
SYSTEM
INDIAN RIVERS

28. Click here for an interesting video
that will seriously make you wonder
about the
Under-sea mysteries that are
hidden from us , till date and how
the simple phenomenon
Of drainage gives birth to a FORM
OF LIFE – WATER..

29. INDUS RIVER SYSTEM
• RISES FROM TIBET, NEAR LAKE MANSAROVAR AND ENTERS
INDIA FROM THE LADAKH REGION OF J&K.
• FORMS A PICTURESQUE (VISUALLY ATTRACTIVE) GORGE IN
THIS PART.
• VARIOUS TRIBUTARIES = THE ZASKAR , NUBRA , SHYOK AND
THE HUNZA.
• THE FIVE RIVERS – SATLUJ , BEAS , RAVI , CHENAB, JHELUM
JOIN TO ENTER INDUS NEAR MITHANKOT IN PAKISTAN .
• TOTAL RIVER LENGTH = 2900 KMS.
• SPREAD IN THE STATES OF J&K , HP , PUNJAB , AND THE REST
IN PAKISTAN.
The HIMALAYAN RIVERS OR THE PERENNIAL RIVERS

30. Meet at
Mithankot in
Pakistan

31. THE GANGA RIVER SYSTEM
• THE HQ’S OF GANGA, CALLED THE BHAGIRATHI, IS FED BY THE
GANGOTRI GLACIER AND JOINED BY THE ALAKANDA AT
DEVPRAYAG IN UTTARAKHAND.
• ENTERS PLAINS AT THE HARIDWAR.
• TRIBUTARIES = THE YAMUNA, GHANGARA, GANDAK , KOSI.
• THE RIVER YAMUNA MEETS GANGA AT ALLAHABAD.
• THE MIGHTY RIVERS OF GANGA FLOW OUT IN THE BAY OF BENGAL.
• DELTA FORMED BY IT IS KNOWN AS THE “SUNDERBANS DELTA”.
• LENGTH OF GANGA : 2500KMS.

32. THE GANGES – A FEATHER IN INDIA’S CAP ♥

33. THE BRAHMAPUTRA RIVER
SYSTEM
• RISES FROM THE TIBET EAST OF MANSAROVAR LAKE
VERY CLOSE TO THE SOURCE OF INDUS AND SATLUJ.
• SLIGHTLY LONGER THAN THE INDUS, WITH MOST OF ITS
COURSE OUTSIDE INDIA.
• FLOWS EASTWARDS PARALLEL TO THE HIMALAYAS.
• THE RIVER CARRIES A LARGE VOLUME OF WATER AND
CONSIDERABLE AMOUNT OF SILT.

34. As Visible, most of the river’s course lies outside

35. SUNDARBAN DELTA / GANGA –
BRAHMAPUTRA DELTA : AN
INSIGHT
• NAME IS DERIVED FROM THE SUNDARI TREES.
• LARGEST DELTA IN THE WORLD.
• VERY FERTILE IN NATURE.
• HOME OF THE ROYAL BENGAL TIGER.
• WORLD’S LARGEST AND FASTEST GROWING DELTA.

36. “THE DELTA WHICH IS THE CROWN OF MOTHER INDIA”

37. THE NARMADA BASIN
• RISES FROM THE AMARKANATAK HILLS IN MADHYA
PRADESH.
• ON ITS WAY TOWARDS THE SEA, IT CREATES MANY
PICTURESQUE LOCATIONS.
• ALL THE TRIBUTARIES OF THE RIVER ARE SHORT AND
JOIN THE MAIN STREAM AT RIGHT ANGLES.
• DRAINS INTO THE ARABIAN SEA.
THE PENINSULAR RIVERS OR THE SEASONAL RIVERS

38. THE TAPI BASIN
• RISES FROM THE SATPURA RANGAS IN THE BETUL
DISTRICT OF MADHYA PRADESH.
• COVERS PARTS OF MADHYA PRADESH , GUJARAT AND
MAHARASHTRA.
• DRAINS INTO THE ARABIAN SEA.

39. The holy
waters of Tapi

40. THE GODAVARI BASIN
• LARGEST PENINSULAR RIVER.
• RISES FROM THE SLOPES OF THE WESTERN GHATS IN
NASIK DISTRICT OF MAHARASHTRA.
• LENGTH IS ABOUT 1500 KM.
• DRAINS INTO THE BAY OF BENGAL. IT IS ALSO THE
LARGEST AMONG THE PENINSULAR RIVERS.
• ALSO KNOWN AS “DAKSHIN GANGA”.

41. THE MAHANADI BASIN
• RISES FROM THE HIGHLANDS OF CHATTISGARH.
• FLOWS THROUGH ODISHA TO REACH THE BAY OF
BENGAL.
• PRESENT IN MAHARASHTRA, CHATTISGARH ,
JHARKHAND AND ODISHA.
• LENGTH OF THE RIVER IS ABOUT 860 KMS.

42. THE KRISHNA BASIN
• RISES FROM A SPRING NEAR MAHABALESHWAR.
• FLOWS FOR ABOUT 1400 KMS. AND REACHES THE BAY OF
BENGAL.
• TRIBUTARIES = TUNGABHADRA, KOYANA, GHATPRABHA,
MUSI AND THE BHIMA.
• PRESENT IN MAHARASHTRA, KARNATAKA AND THE
ANDHRA PRADESH.

43. One of The biggest gas reserve of India was discovered here a
Krishna Basin.

44. THE KAVERI BASIN
• RISES FROM THE BRAHMAGIRI RANGE OF THE WESTERN
GHATS.
• REACHES THE BAY OF BENGAL IN THE SOUTH OF
CUDDALORE IN TAMIL NADU.
• TOTAL LENGTH OF THE RIVER IS 760 KMS.
• TRIBUTARIES ARE AMRAVATI, BHAVANI, HEMAVATI AND
KABINI.
• BASIN COVERS DRAINS PART OF KARNATAKA, KERALA
AND TAMIL NADU.

45. THIS RIVER MAKES THE
SECOND BIGGEST WATERFALL
OF INDIA – SIVASAMUDRAM.

46. • SOOO…ARE YOU READY TO NOW EXPLORE THE BEST
PART OF THE CHAPTER ???

47. Fresh Water Lakes
• Found in the Himalayan Region
• Are of glacier origin
• Examples = Dal Lake
Wular Lake
• Wular Lake in J&K is a result of tectonic activity.
• Largest fresh water lake in India.
Ox bow Lakes
• U – shaped waterbody
• Formed when a wide meander from the river mainstream is cut off to create
a lake.
Lagoons
• Spits and bars from lagoons in the coastal area.
• Examples = Chilika Lake (Odisha)
Lakes in the Region of Inland Drainage
• Water is used for producing salt.
• Example = Sambhar Lake in Rajasthan.
NATURAL
LAKES

48. MAN-MADE LAKES
• FORMED DUE TO DAMMING OF RIVERS.
• EXAMPLE- GURU GOBIND SAGAR LAKE (BHAKRA –
NANGAL PROJECT, PUNJAB)

49. IMPORTANCE
OF LAKES
MAINTAIN A
FLOW OF
WATER
DURING DRY
SEASONS
USED FOR
DEVELOPING
HYDEL
POWER
MODERATES
CLIMATE
MANTAINS
THE
AQUATIC
ECO –
SYSTEM
ENHANCES
NATURAL
BEAUTY
DEVELOPS
TOURISM

51. -Devanshi , Batch – 9W01 (AAKASH LIVE)