Carte topographique Kolkata
Carte interactive
Cliquez sur la carte pour afficher l’altitude.
À propos de cette carte
Nom : Carte topographique Kolkata, altitude, relief.
Lieu : Kolkata, Kolkata District, West Bengal, 700073, India (22.41265 88.20390 22.73265 88.52390)
Altitude moyenne : 5 m
Altitude minimum : -2 m
Altitude maximum : 21 m
Spread roughly north–south along the east bank of the Hooghly River, Kolkata sits within the lower Ganges Delta of eastern India approximately 75 km (47 mi) west of the international border with Bangladesh; the city's elevation is 1.5–9 m (5–30 ft). Much of the city was originally a wetland that was reclaimed over the decades to accommodate a burgeoning population. The remaining undeveloped areas, known as the East Kolkata Wetlands, were designated a "wetland of international importance" by the Ramsar Convention (1975). As with most of the Indo-Gangetic Plain, the soil and water are predominantly alluvial in origin. Kolkata is located over the "Bengal basin", a pericratonic tertiary basin. Bengal basin comprises three structural units: shelf or platform in the west; central hinge or shelf/slope break; and deep basinal part in the east and southeast. Kolkata is located atop the western part of the hinge zone which is about 25 km (16 mi) wide at a depth of about 45,000 m (148,000 ft) below the surface. The shelf and hinge zones have many faults, among them some are active. Total thickness of sediment below Kolkata is nearly 7,500 m (24,600 ft) above the crystalline basement; of these the top 350–450 m (1,150–1,480 ft) is Quaternary, followed by 4,500–5,500 m (14,760–18,040 ft) of Tertiary sediments, 500–700 m (1,640–2,300 ft) trap wash of Cretaceous trap and 600–800 m (1,970–2,620 ft) Permian-Carboniferous Gondwana rocks. The quaternary sediments consist of clay, silt, and several grades of sand and gravel. These sediments are sandwiched between two clay beds: the lower one at a depth of 250–650 m (820–2,130 ft); the upper one 10–40 m (30–130 ft) in thickness. According to the Bureau of Indian Standards, on a scale ranging from I to V in order of increasing susceptibility to earthquakes, the city lies inside seismic zone III.
Autres cartes topographiques
Cliquez sur une carte pour visualiser sa topographie, son altitude et son relief.
Siliguri
India > West Bengal > Siliguri Subdivsion
Siliguri, Siliguri Subdivsion, Darjeeling District, West Bengal, India
Altitude moyenne : 121 m
Bangaon
India > West Bengal > Bongaon
Bangaon, Bongaon, North 24 Parganas District, West Bengal, 743235, India
Altitude moyenne : 7 m
Taki
India > West Bengal > Hasnabad
Taki, Hasnabad, North 24 Parganas District, West Bengal, 743429, India
Altitude moyenne : 4 m
Thakurpukur Maheshtala
Thakurpukur Maheshtala, South 24 Parganas District, West Bengal, India
Altitude moyenne : 5 m
Darjeeling district
Darjeeling district, West Bengal, India
Altitude moyenne : 728 m
Rajganj
India > West Bengal > Rajganj
Rajganj, Jalpaiguri District, West Bengal, 735134, India
Altitude moyenne : 93 m
Swabhumi
India > West Bengal > Kolkata
Swabhumi, Kolkata, Kolkata District, West Bengal, India
Altitude moyenne : 6 m
Mathurapur - I
Mathurapur - I, South 24 Parganas District, West Bengal, 743354, India
Altitude moyenne : 4 m
Bidhannagar
Bidhannagar, North 24 Parganas District, West Bengal, India
Altitude moyenne : 5 m
Bhangar - I
Bhangar - I, South 24 Parganas District, West Bengal, 743502, India
Altitude moyenne : 3 m
Bolpur
India > West Bengal > Bolpur Sriniketan
Bolpur, Bolpur Sriniketan, Birbhum District, West Bengal, India
Altitude moyenne : 50 m
West Dinājpur
West Dinājpur, Dakshin Dinajpur District, West Bengal, India
Altitude moyenne : 34 m
Medinipur
India > West Bengal > Midnapore
Medinipur, Midnapore, Paschim Medinipur District, West Bengal, 721101, India
Altitude moyenne : 39 m
Rampurhat
India > West Bengal > Rampurhat - I
Rampurhat, Rampurhat - I, Birbhum District, West Bengal, 731224, India
Altitude moyenne : 38 m
Gangapur
India > West Bengal > Barasat - I
Gangapur, Barasat - I, North 24 Parganas District, West Bengal, 743248, India
Altitude moyenne : 7 m
Baranagar
India > West Bengal > Barrackpore
Baranagar, Barrackpore, North 24 Parganas District, West Bengal, 700035, India
Altitude moyenne : 6 m
Kolkata
Kolkata, Kolkata District, West Bengal, India, Adi Ganga
Altitude moyenne : 8 m
Asansol Kulti Township
Asansol Kulti Township, Paschim Bardhaman District, West Bengal, India
Altitude moyenne : 125 m
Raiganj
Raiganj, Uttar Dinajpur District, West Bengal, India
Altitude moyenne : 35 m
B-13
India > West Bengal > Kalyani
B-13, Kalyani, Nadia District, West Bengal, India
Altitude moyenne : 10 m
North Dumdum
India > West Bengal > Barrackpore
North Dumdum, Barrackpore, North 24 Parganas District, West Bengal, 700051, India
Altitude moyenne : 7 m
Garbeta-III
Garbeta-III, Paschim Medinipur District, West Bengal, 721253, India
Altitude moyenne : 42 m
Kangsabati Reservoir
India > West Bengal > Ranibundh
Kangsabati Reservoir, Ranibundh, Bankura District, West Bengal, India
Altitude moyenne : 136 m
Ghatal
Ghatal, Paschim Medinipur District, West Bengal, India
Altitude moyenne : 11 m
Kharagpur
India > West Bengal > Kharagpur-I
Kharagpur, Kharagpur-I, Paschim Medinipur District, West Bengal, 721301, India
Altitude moyenne : 39 m
Tufanganj - I
Tufanganj - I, Cooch Behar District, West Bengal, India
Altitude moyenne : 37 m
Dum Dum
India > West Bengal > Barrackpore
Dum Dum, Barrackpore, North 24 Parganas District, West Bengal, 700081, India
Altitude moyenne : 6 m
Darjeeling Pulbazar
Darjeeling Pulbazar, Darjeeling District, West Bengal, India
Altitude moyenne : 1.779 m
Malda
India > West Bengal > English Bazar
Malda, English Bazar, Maldah, West Bengal, 732101, India
Altitude moyenne : 26 m
Chandipur
Chandipur, Purba Medinipur District, West Bengal, 721659, India
Altitude moyenne : 4 m
Shiulibari
India > West Bengal > Contai-III
Shiulibari, Contai-III, Purba Medinipur District, West Bengal, 721449, India
Altitude moyenne : 4 m
Digha
India > West Bengal > Digha
Digha, Ramnagar-I, Purba Medinipur, West Bengal, 721428, India
Altitude moyenne : 4 m
Bikna
India > West Bengal > Bankura - II
Bikna, Bankura - II, Bankura District, West Bengal, 722180, India
Altitude moyenne : 85 m
Bishnupur - II
Bishnupur - II, South 24 Parganas District, West Bengal, 743377, India
Altitude moyenne : 4 m
Bhangar - II
Bhangar - II, South 24 Parganas, West Bengal, India
Altitude moyenne : 4 m
Diamond Harbour - II
Diamond Harbour - II, South 24 Parganas, West Bengal, 743368, India
Altitude moyenne : 3 m
Sevoke
India > West Bengal > Sevoke
Sevoke, Darjiling, Darjeeling, West Bengal, India
Altitude moyenne : 254 m
Krishnanagar
India > West Bengal > Krishnagar-I > Krishnanagar
Krishnanagar, Krishnagar-I, Nadia, West Bengal, 741101, India
Altitude moyenne : 11 m
Cooch Behar
India > West Bengal > Cooch Behar
Cooch Behar, Koch Bihār, Kochbihar, West Bengal, 736101, India
Altitude moyenne : 43 m
Sagar Island
Sagar Island, Sagar, South 24 Parganas, West Bengal, 743606, India
Altitude moyenne : 2 m
Damdim
India > West Bengal > Mal
Damdim, Mal, Jalpaiguri District, West Bengal, 735209, India
Altitude moyenne : 161 m