Wednesday, August 29, 2007

Infrastructure and landforms

Are rainfall and landform important for school infrastructure ? I am searching this issue.

RAINFALL

LANDFORMS

There are 8 types of landforms in WB.

  1. Darjeeling Himalayan region
    Darjeeling Himalayan hill region is situated on the North-Western side of the state. This region belongs to the Eastern Himalaya range. The whole of the Darjeeling district except the Siliguri division and a narrow part in the Northern part of Jalpaiguri district constitutes the region.

  2. Terai region
    The Terai and Dooars region politically constitute the plains of Darjeeling District, whole of Jalpaiguri District and upper region of Cooch Behar District in West Bengal.


  3. North Bengal Plains
    North Bengal plain start from the south of Terai region and continues up to the left bank of the Ganges. The southern parts of the district Jalpaiguri, North Dinajpur baring some extreme northern regions, South Dinajpur, Malda and southern part of Cooch Behar districts constitute this geographical region. The narrow land mass in the North Dinajpur district is known as Mahananda Corridor. This corridor runs noth to south joining Malda with the plains of Jalpaiguri and Cooch Behar. The entire part of North and South Dinajpur is silt laden plain.


  4. Rarh region
    Rarh is the region that intervenes between the Western plateau and high lands and the Ganges Delta. Parts of the districts Murshidabad, Birbhum, Bankura, Bardhaman and Medinipur constitute this region.


  5. Coastal plain
    Shankarpur beach near Digha is apart of this coastal plain. A small coastal region is on the extreme south of the state. A part of the district of Purba Medinipur along the Bay of Bengal constitutes the coastal plain. This emergent coastal plain is made up of sand and mud deposited by rivers and by wind. Parallel to the coast are colonies of sand dunes and marshy areas. The Digha dune lies nearest to the Bay of Bengal while the Kanthi dune is the farthest from it. In some areas dunes occur at a distance of 15-16 km from the coast and are 11-12 m high.

  6. Sundarbans
    The Sundarbans delta is the largest mangrove forest in the world situated in the South 24 Parganas district. It lies at the mouth of the Ganges and is spread across areas of Bangladesh and West Bengal, India.


  7. Western plateau and high lands
    The western part of Purulia, Bankura, Birbhum, Bardhaman and Paschim Medinipur district constitutes this area. Because of long and continuous erosion, the whole region has been transformed into an undulating peneplain.



  8. Gangetic delta
    Ganges River Delta, Bangladesh and IndiaThe Ganges delta consists of the whole of Murshidabad district, Nadia, Kolkata, Hooghly, and Howrah and the northern part of North and South 24 Parganas. River Ganga passes through this vast area and divides into three distinct parts – the old delta, the mature delta and the active delta.

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