Cyclone and Storm Surge - Iczmpwb.org
Cyclone and Storm Surge - Iczmpwb.org Cyclone and Storm Surge - Iczmpwb.org
3.4 these merchants may have been to some extent responsible for Charnock's choice of the site. By 1696, when a rebellion broke out in the nearby district of Burdwan, the Mughal provincial administration had become friendly to the growing settlement. The servants of the company, who asked for permission to fortify their trading post, or factory, were given permission in general terms to defend themselves. The rebels were easily crushed by the Mughal government, but the settlers' defensive structure of brick and mud remained and in 1700 came to be known as Fort William. In 1698 the English obtained letters patent that granted them the privilege of purchasing the zamindari right (the right of revenue collection; in effect, the ownership) of the three villages. Although Job Charnock initiated the installation of the Kuthighat on the river, it was his son who brought the Zemindary rights of the fledgling city, six years after the death of his father. In 1757, the area was 5076 Bighas and 18 3/4 Katthas. The area was bounded by the Chitpur Creek on the north, present day Lalbazar and the Chittaranjan Avenuae on the east, the Maidan and the Fort William on the south and the Hooghly river on the west. In 1794, Lord Cornwallis first defined the boundaries of the city. However it was in 1840, when for the first time the city limits were legally determined. These were the Marhatta ditch on the north, Circular road on the east, and the Lower Circular road, Kidderpur bridge, the Tolly's Nala up to the Hooghly river, which of course formed the boundary. In 1840, the city limits were extended to include Entally, Bebiapukur, Ballyganj, Bhowanipur and northern part of Tollyganj. In this way the city went on to expand through inclusion of fresh suburban areas by stages in 1931, 1951 and 1984. Present area of the city is 187.33 sq. km. (72.33 sq miles). It may be noted that the Salt Lake area has now been brought under a separate municipality, called the Bidhan Nagar Municipality. The increase in population with time can be gauged from the Table 7: Table 3-1. Year wise Area and Population of Kolkata Year Area of the city Population Source and authorities 1698 5076 bighas and 18 3/4 cottah (1861 acres) Wilson, Early, Annals I. p 286 1746 5472 bighas and 1/2 cottah Holwell, Tracts, 3rd. Edition, p 209 1762 6057 bighas and 13 cottahs Long, selections, no. 581 1794 4997 acres/ 20.31 sq. km. A.K. Ray, A Short History of Calcutta l821 -do- 1,79,917 Assesor's estimate 1831 -do- 1,87,081 Captain Steele's estimate 1837 -do- 2,29,714 Captain Birch's estimate
3.5 1840 -do- 3,61,369 Simms's estimate 1850 -do- 4,13,182 Chief Magistrate's estimate 1866 -do- 3,77921 Dowleans's census 1872 -do- 447601 Chick's census (often considered unreliable) 1876 5037 acres/20.48 sq. km. 4,29,535 Beverley's census 1881 -do- 4,33,219 Census of 1881 1891 13,133 acres/53. 39 sq. km. 4,68,552 Census of 1891 1901 20,547 acres/83.52 sq. km. 8,47,796 Census of 1901 1911 -do- 8,96,067 Census of 1911 1951 28.34 sq. mile/73.40 sq. km. 25,48,677 Census of 1951 1961 95.62 sq. km. 29,27,289 Census of 1961 1971 98.79 sq. km. 31,48,746 Census of 1971 1981 98.79 sq. km. 33,05,006 Census of 1981 1991 187.33 sq. km. 43,99,819 Census of 1991 2001 187.33 sq. km. 45,80,544 Census of 2001 * Reduction in area is reportedly due to exclusion of Garden Reach It would be also interesting to have a look at the drainage pattern of the region from a map that approximately demarcates the regions at the beginnings of the British Colonial dominion in the Indian Subcontinent. Figure 10 shows a small portion of the map by William R. Shepherd, titled The Historical Atlas, in which it may be noticed that there are two distinct drainage channels flowing south and south east from Kolkata (Calcutta then) apart from the river Hooghly which flowed approximately towards the south west from Kolkata. In fact this provides a clue for the origin of the large tidal creeks like the Matla, Thakuran, Raimangal, etc., as mentioned in Chapter 2, but without any head water discharges. Actually, most of these creeks had been the erstwhile off-taking distributaries of the Ganga Delta, and had been quite actively conveying substantial discharges to carve out a wide channel. However, due to various reasons of which one could be human settlements, most of these channels lost their head water catchment flows. This trend has been continuing since, as has been apparent from the siltation of the river Hooghly, in he past decade. In fact, it was the reason why the Farakka Barrage was constructed to divert an assured quantity of water into river Hooghly and keeping it navigable. A further detail may also be observed from the river Hooghly channels around Sagar Island. It might be seen that the eastern channel (now almost defunct) had been quite comparable in size, though smaller, than the main channel of the river at that point of time.
- Page 16 and 17: 2.6 The most destructive element as
- Page 18 and 19: 2.8 the two regions is rather diffe
- Page 20 and 21: 2.10 2.4. The eastern coastal zone
- Page 22 and 23: 2.12 velocity is first checked. As
- Page 24 and 25: 2.14 Strong winds known as cyclones
- Page 26 and 27: 2.16 2.4.6. Soil characteristics Th
- Page 28 and 29: 2.18 All rivers have in general sou
- Page 30 and 31: 2.20 Another interesting feature of
- Page 32 and 33: 2.22 formed does not pose so much o
- Page 34 and 35: 2.24 2.4.11. Forest composition The
- Page 36 and 37: 2.26 Canning (Bidyadhari Outfall in
- Page 38 and 39: 2.28 Administrative information Pop
- Page 40 and 41: 2.30 Mangrove plantation beyond the
- Page 42 and 43: 2.32 A retired embankment of river
- Page 44 and 45: 2.34 The beaches are flattened by s
- Page 46 and 47: 2.36 of a doiminant tidalbasin of t
- Page 48 and 49: 2.38 primary mode is centered on th
- Page 50 and 51: 2.40 Aquaculture ponds located betw
- Page 52 and 53: 2.42 All the islands are situated w
- Page 54 and 55: 2.44 • Transport the water to the
- Page 56 and 57: 2.46 The other type of failure may
- Page 58 and 59: 2.48 channel floor, some of the riv
- Page 60 and 61: 2.50 embankments. Crops and propert
- Page 62 and 63: 2.52 2. To reduce the average dista
- Page 64 and 65: 3.2 a storm surge caused by a tropi
- Page 68 and 69: 3.6 Figure 3-1. Map of India during
- Page 70 and 71: 3.8 larger volume of sewage and dra
- Page 72 and 73: 3.10 receive, at least during the r
- Page 74 and 75: 3.12 3.9. Drainage scheme of Dr. B.
- Page 76 and 77: 3.14 3.10. CMPO and KMDA (originall
- Page 78 and 79: 3.16 Flows are diverted to the loca
- Page 80 and 81: 3.18 the Bhangar region through the
- Page 82 and 83: 3.20 the ocean level as a result of
- Page 84 and 85: 3.22 Table 3-6. Major pumping stati
- Page 86 and 87: 3.24 Table 3-9. Drainage basin area
- Page 88 and 89: 3.26 will lead to significant impro
- Page 90 and 91: 3.28 locks, one at Chitpur and anot
- Page 92 and 93: 3.30 Respectively. The discharge of
- Page 94 and 95: 3.32 Figure 3-6. The downstream of
- Page 96 and 97: 3.34 Figure 3-10 shows the tail end
- Page 98 and 99: 3.36
- Page 100 and 101: 3.38
- Page 102 and 103: 4.2 In US, there is a steady decrea
- Page 104 and 105: 4.4 This shows that Orissa (with 10
- Page 106 and 107: 4.6 30 25 20 15 10 Severe Cyclone C
- Page 108 and 109: 4.8 Table 3: Return periods of cycl
- Page 110 and 111: 4.10 Table 5: The number and return
- Page 112 and 113: 4.12 work station (the Automated Tr
- Page 114 and 115: 4.14 through this trough into the d
3.5<br />
1840 -do- 3,61,369 Simms's estimate<br />
1850 -do- 4,13,182 Chief Magistrate's estimate<br />
1866 -do- 3,77921 Dowleans's census<br />
1872 -do- 447601 Chick's census (often considered unreliable)<br />
1876 5037 acres/20.48 sq. km. 4,29,535 Beverley's census<br />
1881 -do- 4,33,219 Census of 1881<br />
1891 13,133 acres/53. 39 sq. km. 4,68,552 Census of 1891<br />
1901 20,547 acres/83.52 sq. km. 8,47,796 Census of 1901<br />
1911 -do- 8,96,067 Census of 1911<br />
1951 28.34 sq. mile/73.40 sq. km. 25,48,677 Census of 1951<br />
1961 95.62 sq. km. 29,27,289 Census of 1961<br />
1971 98.79 sq. km. 31,48,746 Census of 1971<br />
1981 98.79 sq. km. 33,05,006 Census of 1981<br />
1991 187.33 sq. km. 43,99,819 Census of 1991<br />
2001 187.33 sq. km. 45,80,544 Census of 2001<br />
* Reduction in area is reportedly due to exclusion of Garden Reach<br />
It would be also interesting to have a look at the drainage pattern of the region from a map that<br />
approximately demarcates the regions at the beginnings of the British Colonial dominion in the Indian<br />
Subcontinent. Figure 10 shows a small portion of the map by William R. Shepherd, titled The<br />
Historical Atlas, in which it may be noticed that there are two distinct drainage channels flowing south<br />
<strong>and</strong> south east from Kolkata (Calcutta then) apart from the river Hooghly which flowed approximately<br />
towards the south west from Kolkata. In fact this provides a clue for the origin of the large tidal creeks<br />
like the Matla, Thakuran, Raimangal, etc., as mentioned in Chapter 2, but without any head water<br />
discharges. Actually, most of these creeks had been the erstwhile off-taking distributaries of the<br />
Ganga Delta, <strong>and</strong> had been quite actively conveying substantial discharges to carve out a wide<br />
channel. However, due to various reasons of which one could be human settlements, most of these<br />
channels lost their head water catchment flows. This trend has been continuing since, as has been<br />
apparent from the siltation of the river Hooghly, in he past decade. In fact, it was the reason why the<br />
Farakka Barrage was constructed to divert an assured quantity of water into river Hooghly <strong>and</strong><br />
keeping it navigable.<br />
A further detail may also be observed from the river Hooghly channels around Sagar Isl<strong>and</strong>. It might<br />
be seen that the eastern channel (now almost defunct) had been quite comparable in size, though<br />
smaller, than the main channel of the river at that point of time.