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Ch 9: Physiography of India (9.3: The Physical Divisions of India Terrain …
Ch 9: Physiography of India
9.1: Location
Latitude
Longitude
Angular Distance
Indian Geography
8°4' N - 37°6' N (3214 km)
68°7' E - 97°25 E (2933 km)
82°30' E- Standard Meridian
23°30' N - Tropic of Cancer
9.2: States and Union Territory
1) 15,200 km of land boundary
2) 6,100 - Coast Line
3) 3.28 million square km of area
4) 28 states and 7 union territories
9.3: The Physical Divisions of India
Terrain
Topography
Weathering
Erosion
9.3.1: The Northern Mountains
(i) The Himalayas
(a) Greater Himalayas or Himadari
4500 m, average of 6,000 m; Width is 120-190km
Many of the world's tallest peaks
(b) Lesser Himalayas or Himacha
1000-4500m height; 50km width
Pir Panjal, Dhaula Dhar, Dhalousie, Shimla etc
(c) Outer Himalayas or Siwaliks.
Height 900-1100 m; 10-50 km width
(ii) The Trans Himalayas
Karakoram, Hindu Kush etc
(iii) The Puranchal hills
9.3.2: The Northern Plains (Indo-Gangetic Plain)
The Western Plains
Ganges-Brahmaputra Plains
9.3.3: The peninsular Plateau
Central Highlands
Aravallis (Mt. Abu)
The Deccan Plateau
The Western Ghats
1600 km Length
Average Elevation: 1000m
Highest Peak: Anaimudi (2695m)
The Eastern Ghats
Average Elevation : 600m
Highest Peak: Mahendragiri (1501 m)
9.3..4: The Indian Desert
< 150mm of rain; 11,872 mm of rainfall in Mawsynram (Max 26,000 mm in 1985)
Agumbe (10000 mm); Bangalore 900 mm ; Chennai 1400 mm
650mm Indian Average
9.3.5: The Coastal Plains
The Western Coastal Plain (10-15 km Wide)
Rann of Kutch - Kanya Kumari
Karnataka Coast (Goa to Mangalore)
Malabar Coast (Mangalore to Kkumari)
Konkan Coast (Mumbai to Goa)
The Eastern Coastal Plain (120km wide)
Mahanadi, Krishna, Godavari, Cauvery
The Northern Circar and Coramandel Cost
9.3.6: The Islands
Andaman (204 Islands) & Nicobar (43 islands)
Lakshwadeep (32 sq km)
9.4 and 9.5: The Drainage Systems of India
The Himalayan Drainage
Peninsular Drainage
9.6: Keeping Rivers Clean