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drainage - Coggle Diagram

- - - - area drained by single river system
- - - - head water means stream of river that makes/contributes the source(originate) of another river
      - 1.BHAGIRATHI
        
        originates from gangotri glacier
      - ALAKANANDA
        
        sotapanth glacier
        
        both rivers join at devprayag in uttarakhand and ganga origins there
      - from haridwar transition happens in floe of ganga river where it flows into plains from mountains
  - - - lenght of bramhaputra is longer than inus
      - it mostly flows outside india
    - - as greater himalayas are highest and continous range it will not allow river to flow anto india
      - from there it reaches namacha barva
        
        namacha barva is mountain range which provides path for river to enter into our country
        
        ny taking u turn at namacha barva it will enter into india in arunachal pradesh by making a gorge
        
        at aruna pra it is known a dihang
        
        dihang is joined by various tributaries such as dibang, lohit and others and forms as bramhaputra in assam
    - - tibet is cold and dry area when compared to india
        
        so in tibet is carries very less water and slit
      - when river enter india it experiences rainfall
        
        flow of water is increases and deposition of slit is also increased
        
        this is the reason a lot of riverine islands are seen in assam
        
        in assam entire length has braided channels(twists and turns)
        
        causes frequent deposition of slit
        
        in rainy season
        
        volume of water is high as well as its flow and overflows from its banks
        
        causing floods in assam and bangladesh
        
        frequent shifts in channels
        
        bramhaputra makes huge deposition on its bed(river bed)
        
        river bed is land on which river flows
        
        due to frequent deposition this river bed raises
        
        at this time river will flow from other low lying paths/ beside the raised riverbed
        
        this causes frequent shift of channels
        
        channel path where river flows
- - - - originated from glaciers and snow fed regions of himalayas
      - nature: perennial rivers
        
        have water throughout the year since it receives water from rains as well as melted snow from mountains
      - have logn courses(distance) from their source to sea
      - himalayan rivers like indus and bramhaputra originate from north mountain ranges
        
        this rivers will amke gorges b/w mountains
        
        gorges:valley or river flowing b/w mountains
      - effect of himalayan rivers
        
        upper courses
        
        intens erosional activity
        
        by moving large amount of san and slit
        
        middle and lower courses
        
        fornsox-bow lakes, large deposition at flood plains aand deltas formation
      - various himalayan rivers
        
        major himalayan rivers are indus ganga and bramhaputra
        
        this h.r are usually long and joined by varios tributaries along the way
        
        RIVER SYSTEM: river along with its tributaries
        
        INDUS RIVER SYSTEM: how indus along with its tri work
        
        ita os known as one of the longest rivers of world
        
        length is 2,900km
        
        area: only 1/3 of indua water flows in india and rest 2/3 flows in pakisthan
        
        in india ladakh, jammu and kashmir, pujab, himacahl pradesh
        
        INDUS WATER TREATY
        
        IWT is a agreement b/w india and pakisthan established in 1960 with regard to usage of indus river water
        
        it says only 20% of water as this 20% is originated in india itself
        
        this water is wused for irrigation in punjab, haryana and some western, southern parts of rajasthan
        
        origin and flow of indus river
        
        IN KASHMIR joined by tributaries zaskar, nubra, shyok and hunza
        
        now flows west and enter balochisthan(pok) and giglit and then enter into mountains of attock
        
        from there it flows westward and enters into india in ladakh
        
        PICTURESQUE GORGE: in ladakh indus makes picturesque gorge which is a narrow valley often beatiful to see
        
        as this river flows southwards various other tribu satluj, beas, ravi, chenab, jhelum joins down of attock
        
        indus is origi in tibet(china)
        
        then river flows southwards and merges into arabian sea