Cyclone and Storm Surge - Iczmpwb.org

More documents

Recommendations

Info

6.41 4. Rajraj Swarup & Ramnagar Abad -do- Gobadia 600 5. Purna Chandrapur -do- -do- 2000 6. Durba Ghati Kultoli Selemati 400 7. Damkal -do- Pukchara 750 8. KeoraKhali Mathurapur Sutarbag 600 9. Herambagopalpur Kultoli Kumari 200 10. Purbaja Deul Mataurapur Chhatua 650 11. Nalgola -do- Moni 750 12. radhaKantapur -do- -do- 900 13. Radhaballavpur -do- Th aku r an 700 14. Kaikhali -do- -do- Matla. 900 15. Gopalgunj Kultoli Sabipukur 600 16. Madhusudanpur Mathurapur Thakuran 600 17. Dakshin Narayantala -do- Matla 900 18. Khas Kumrakhali -do- Bidyadhari 900 19. Kumari Kultoli Kuerari 600 Total length of retired embankment (in meters) = 15,000 Kakdwip irrigation division Sl. No. Name of Mouza. Name of P.S. Name of River Length (m) 1. Kastala West Sagore Hooghly. 900 2. Kachuberia -do- Muriganga 750 3. Muriganga -do- -do- 300 4. Sikarpur -do- -do- 750 5. Sumati Nagar -do- -do- 300 6. Lakshipur Abad ( Freasergunj) Namkhana Bay of Bengal 600 7. Haripur -do- Saptamukhi & Sundarika. 600 8. Dakshin Durgapur -do- Chiner 250 9. Debnagar Narayangunj -do- Chiner 300 10. Dwarik Nagar -do- Hatania Donia & Sundarika 750 11. Namkhana -do- -do- 750 12. Sitarampur Patharprotima Jagaddal 400 13. Chhotta Rakhashkhali -do- Curzen Creek 500 14. Sibnagar -do- Jagaddal 500 15. Purba Sripatinagar -do- Thakuran 600 16. Brojoballavpur -do- -do- 600 17. Gobindapurabad -do- -do- 600 18. Ramtanu Nagar Kakdwip Hooghly 600 19. Lakshmipur -do- -do- 600 20. Sib Kabnagar -do- -do- 600 21. Budhakhali -do- -do- 600 22. Iswaripur & Narayanpur -do- Hatania Doania 850 Total length of retired embankment (in meters) = 13,000
6.42 The above recommendations of the total 55 kms of retired embankment shall require land acquisition of around 1947 hectare costing approximately Rs. 23 Crores as per 1997 price index. Though some of the acquisition has already been done by now, but considering a gradual rise in land prices, the cost of acquisition of the remaining land is about Rs. 30 Crore. Construction of these embankments would require another Rs. 10 Crore. 6.3. Riverbank protection This is the hard option of protecting a riverbank from failing under erosion. It is seen that the most critical length of the rivers that need to be protected from failure by bank erosion is the 55 kms identified in section 8.2 for retirement of the existing embankments. The bank protection has to be done in a scientific manner, and using local material as much as possible. However, it is felt that hard protections may be avoided since it may so happen that the protected bank remains safe under the protection but the other banks which are unprotected start loosing a greater amount of material as a result. Also the cost would be rather high. Instead, the region that is available as a result of retiring of embankment may be planted with mangrove saplings as mentioned in the following section. 6.4. Mangrove regeneration Mangroves have been known to help the coastal belts from the ravaging action of waves as generated by tsunamis or cyclones. As is well known, and recorded by Sanyal (2006), when Tsunami struck the Tamil Nadu during December 2004, the areas behind Pichavaram and Muthupet with dense mangroves suffered fewer human casualties and less damage compared to areas without mangroves. During October 1999, mangrove forests reduced the impact of a super cyclone that struck Orissa killing at least 10,000 people and making 7.5 million homeless. The human settlements behind mangroves did not suffer loss. During the year 1988 the devastating cyclone of Sundarban damaged most of the embankments. But after the cyclone it was noticed that the embankments that had either toe line mangrove plantations or natural mangrove buffer had hardly been damaged. The most stable portions were the embankments where a ring dyke was also constructed and mangrove regenerated in between them as in the Shikarpur forest campus and its vicinity. Mangroves are efficient silt trappers and it has been proved that the delta progradation of Sundarban largely depend on the sediment trapping by the mangroves. The presence of mangroves at the intertidal flats on foreshore of the embankments also helps in sediment accretion at the base of the embankments and strengthening it in turn. The dearth of sand in the old Digha sea beach is partially related to the mangrove clearance of Digha Mohana estuary for a large scale co-operative Fishery
Page 2 and 3:
HAZARD ASSESSMENT AND DISASTER MITI
Page 4 and 5:
Project Team Though the outcome of
Page 6 and 7:
Preamble The State of West Bengal,
Page 8 and 9:
1.2 IMD, in its website (http://www
Page 10 and 11:
1.4 5. Proposals for location of cy
Page 12 and 13:
2.2 region is that which struck the
Page 14 and 15:
2.4 Figure 2-2. Track of the 1970 B
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 66 and 67:
3.4 these merchants may have been t
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
Page 116 and 117:
4.16 Mean Low water 1.51 1.39 1.34
Page 118 and 119:
4.18 τx,τy : x and y components o
Page 120 and 121:
4.20 formulation. However, the rete
Page 122 and 123:
4.22 ∂u ~ ∂ ~ ~ ∂ ~ ~ ∂ζ 1
Page 124 and 125:
4.24 Δ p p(r) = p( ∞) − [1+ (r
Page 126 and 127:
4.26 maximum surge for this event w
Page 128 and 129:
4.28 U-Component of Velocity (Surfa
Page 130 and 131:
4.30 ## ## ## #### ### ## ########
Page 132 and 133:
4.32 V-component of Velocity (Surfa
Page 134 and 135:
4.34 U-component of Velocity (Surfa
Page 136 and 137:
## ################################
Page 138 and 139:
4.38 V-Component of velocity (Surfa
Page 140 and 141:
5.2 particular human settlement to
Page 142 and 143:
5.4 The Composite Vulnerability Ind
Page 144 and 145:
5.6 (2004 prices) prevalent in dist
Page 146 and 147:
5.8 Moyna 0.6280 0.1592 0.542286 0.
Page 148 and 149:
5.10 5.4.2. Social infrastructure H
Page 150 and 151: 5.12 Budge-Budge(Part-II) 0.0000 0.
Page 152 and 153: 5.14 secondary and tertiary activit
Page 154 and 155: 5.16 F i Fˆ i ⎛ Total no. of =
Page 156 and 157: 5.18 Table 5-4: Composite Index of
Page 158 and 159: 5.20 M ′ = H M ′′ = I . S whe
Page 160 and 161: Chapter Six Mitigation Strategies a
Page 162 and 163: 6.3 Beside these differences in lev
Page 164 and 165: 6.5 • to reduce the destructive f
Page 166 and 167: 6.7 6.2.4. Methods of Construction
Page 168 and 169: 6.9 is attached to the structure. T
Page 170 and 171: 6.11 (b) Medium rivers to armour th
Page 172 and 173: 6.13 Likewise, in all the embankmen
Page 174 and 175: 6.15 Figure 6 -5 Figure 6 -6 Figure
Page 176 and 177: 6.17 Benefit cost ratio Area benefi
Page 178 and 179: 6.19 Location and cost of proposed
Page 180 and 181: 6.21 Swaraupnagar Swaraupnagar 100
Page 182 and 183: 6.23 Gobadia Kakdwip Dk Kasiabad &
Page 184 and 185: 6.25 Location and cost of proposed
Page 186 and 187: 6.27 " Jagaddal " 800 6400000 " Jag
Page 188 and 189: 6.29
Page 190 and 191: 6.31
Page 192 and 193: 6.33
Page 194 and 195: 6.35 Figure 6 -11 Figure 6 -12
Page 196 and 197: 6.37 Figure 6 -15 Figure 6 -16
Page 198 and 199: 6.39 Figure 6 -19 6.2.7. Recommenda
Page 202 and 203: 6.43 project. Such sediment deficit
Page 204 and 205: 6.45 paludosa, Rhizophora apiculata
Page 206 and 207: 6.47 15. Ceriops tagal 0.22 0.40 0.
Page 208 and 209: 6.49 shelterbelt (average 100 m wid
Page 210 and 211: 6.51 (assuming land acquisition cos
Page 212 and 213: 6.53 location are missing reducing
Page 214 and 215: 7.2 resulted in large scale waterlo
Page 216 and 217: 7.4 5. No adverse effect in drainin
Page 218 and 219: 7.6 15 LT Panel L.S. 2,200,000 16 I
Page 220 and 221: 7.8 Bagjola, Kestopur and SWF chann
Page 222 and 223: Executive Cost Summary of Recommend
Page 224 and 225: References Kanjilal (2005) “Sunde
Page 239: “……………….Designingadis
show all

Cyclone and Storm Surge - Iczmpwb.org

Create successful ePaper yourself

Delete template?

Save as template?