Cyclone and Storm Surge - Iczmpwb.org

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6.17 Benefit cost ratio Area benefited due to prevention of saline inundation: 362.75 Sq.km under Joynagar Irrigation Division 286.50 Sq.km under Kakdwip Irrigation Division 180.00 Sq.km under Basirhat Irrigation Division Total (A) = 829.25 Sq.krn = 829.25 x 100 Ha = 82,925 Ha Benefit due to Crop production Culturable or Cropped Area = 80% of 82925 Ha = 66,340 Ha Average Crop production as per Census Report = 25 Quintal per Ha per year Paddy Crop = 66,340 Ha x 25 = 16,58,500 Quintal Straw = 1.5 times of 16,58,500 Quintal = 24,87,750 Quintal Cost of Paddy = 16,58,500 Qtl x Rs.600.00 per Qtl = Rs. 99,51,00,000.00 Cost of Straw = 24,87,750 Qtl x Rs.175.00 per Qtl = Rs. 43,53,56,250.00 Total Cost of Production = Rs. 99,51,00,000.00 + Rs. 43,53,56,250.00 = Rs. 143,04,56,250.00 = Rs.14,304.56 Lakh per year (B) Value of damages to embankments due to Breach, Wave Wash etc. In the year 2001-02 = Rs. 952.57 Lakh 2002-03 = Rs. 790.32 Lakh 2003-04 = Rs. 755.94 Lakh 2004-05 = Rs. 1025.00 Lakh 2005-06 = Rs. 858.00 Lakh
6.18 Total = Rs. 4381.83 Lakh in 5 years So average value of damages to embankments per year = Rs. 4381.83 Lakh ÷ 5 = Rs. 876.37 Lakh Loss due to damage of private homes, cattle, livestock, relief measures Etc. being not readily available has not been considered in this statement. Total Benefit per year = (A) + (B) = Rs. 14,304.56 Lakh + Rs. 876.37 Lakh = Rs. 15,180.93 Lakh (C) Annual Expenditure Capital outlay of the scheme = Rs. 54,000.00 Lakh Considering annual operation <strong>and</strong> maintenance cost @ 17% of the Capital Outlay, yearly expenditure comes to Rs. 9,180.00 Lakh (D) Benefit Cost Ratio comes to = Rs. 15,180.93 Lakh ÷ Rs. 9,180.00 Lakh = 1.65 : 1
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HAZARD ASSESSMENT AND DISASTER MITI
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Project Team Though the outcome of
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Preamble The State of West Bengal,
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1.2 IMD, in its website (http://www
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1.4 5. Proposals for location of cy
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2.2 region is that which struck the
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2.4 Figure 2-2. Track of the 1970 B
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2.6 The most destructive element as
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2.8 the two regions is rather diffe
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2.10 2.4. The eastern coastal zone
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2.12 velocity is first checked. As
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2.14 Strong winds known as cyclones
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2.16 2.4.6. Soil characteristics Th
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2.18 All rivers have in general sou
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2.20 Another interesting feature of
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2.22 formed does not pose so much o
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2.24 2.4.11. Forest composition The
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2.26 Canning (Bidyadhari Outfall in
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2.28 Administrative information Pop
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2.30 Mangrove plantation beyond the
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2.32 A retired embankment of river
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2.34 The beaches are flattened by s
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2.36 of a doiminant tidalbasin of t
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2.38 primary mode is centered on th
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2.40 Aquaculture ponds located betw
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2.42 All the islands are situated w
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2.44 • Transport the water to the
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2.46 The other type of failure may
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2.48 channel floor, some of the riv
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2.50 embankments. Crops and propert
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2.52 2. To reduce the average dista
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3.2 a storm surge caused by a tropi
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3.4 these merchants may have been t
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3.6 Figure 3-1. Map of India during
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3.8 larger volume of sewage and dra
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3.10 receive, at least during the r
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3.12 3.9. Drainage scheme of Dr. B.
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3.14 3.10. CMPO and KMDA (originall
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3.16 Flows are diverted to the loca
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3.18 the Bhangar region through the
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3.20 the ocean level as a result of
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3.22 Table 3-6. Major pumping stati
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3.24 Table 3-9. Drainage basin area
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3.26 will lead to significant impro
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3.28 locks, one at Chitpur and anot
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3.30 Respectively. The discharge of
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3.32 Figure 3-6. The downstream of
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3.34 Figure 3-10 shows the tail end
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3.36
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3.38
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4.2 In US, there is a steady decrea
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4.4 This shows that Orissa (with 10
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4.6 30 25 20 15 10 Severe Cyclone C
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4.8 Table 3: Return periods of cycl
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4.10 Table 5: The number and return
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4.12 work station (the Automated Tr
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4.14 through this trough into the d
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4.16 Mean Low water 1.51 1.39 1.34
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4.18 τx,τy : x and y components o
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4.20 formulation. However, the rete
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4.22 ∂u ~ ∂ ~ ~ ∂ ~ ~ ∂ζ 1
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4.24 Δ p p(r) = p( ∞) − [1+ (r
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Page 128 and 129: 4.28 U-Component of Velocity (Surfa
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Page 132 and 133: 4.32 V-component of Velocity (Surfa
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Page 138 and 139: 4.38 V-Component of velocity (Surfa
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Page 174 and 175: 6.15 Figure 6 -5 Figure 6 -6 Figure
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Page 180 and 181: 6.21 Swaraupnagar Swaraupnagar 100
Page 182 and 183: 6.23 Gobadia Kakdwip Dk Kasiabad &
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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
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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
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“……………….Designingadis
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