Cyclone and Storm Surge - Iczmpwb.org

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5.8 Moyna 0.6280 0.1592 0.542286 0.497 Nandakumar 0.5394 0.0706 0.567176 0.414 Nandigram-III 0.2716 0.1707 0.347487 0.279 Haldia Sub Division Mahisadal 0.5332 0.0950 0.451286 0.383 Nandigram-I 0.2924 0.1481 0.413053 0.302 Nandigram-II 0.2317 0.0604 0.336969 0.214 Sutahata 0.1309 0.0423 0.23964 0.139 Egra Sub Division Patashpur-I 0.8649 0.2675 0.612328 0.723 Patashpur-II 1.0000 0.0832 0.572259 0.599 Bhagwanpur-I 0.4896 0.1376 0.50763 0.413 Egra-I 0.5338 0.0848 0.606545 0.436 Egra-II 0.5077 0.1440 0.564641 0.447 Contai Sub Division Khejuri -I 0.2585 0.0730 0.331388 0.227 Khejuri-II 0.1854 0.0780 0.377971 0.219 Bhagwanpur-II 0.4078 0.1121 0.561826 0.386 Ramnagar-I 0.2215 0.0291 0.327166 0.195 Ramnagar-II 0.4324 0.0641 0.357101 0.294 Contai-I 0.2065 0.1223 0.402414 0.254 Contai-II 0.2729 0.0534 0.429623 0.258 Contai-III 0.1842 0.0755 0.644642 0.310 5.4. Vulnerability Assessment of Physical and Social Infrastructure Impact of a disaster can be appropriately evaluated by the time needed to restore normalcy. And disaster of any kind invariably tends to curtail the man’s ability to restore normalcy by severely affecting its physical and social infrastructure. In this study we will primarily concentrate on threes basic types of physical infrastructure, namely a) road connectivity, b) access to safe drinking water and c) access to hygienic sanitation facilities. Apart from that, we will also focus on a) education and b) heath infrastructure and their role in dictating the vulnerability of a particular settlement. 5.4.1. Physical infrastructure Road connectivity is of paramount importance as it guides the success of evacuation during pre and post disaster stages as well as reaching of aid and relief to the affected population. Road connectivity index of a particular CD block has been derived from road length in km per sq.km area as well as per ‘000 population. Both surfaced as well as unsurfaced roads have been taken into consideration along with relative share. Higher the road connectivity lesser it is vulnerable to impediments in the evacuation as well as aid and relief distribution. Disruption in the road connectivity can be either due to temporary blockages due uprooted trees or due to damage of the culverts and bridges. Based on
5.9 the time required to restore the road connectivity, the mobility in the primary (within CD block), secondary (district level) and tertiary catchment (intra region) area will be affected. The index of road connectivity (A) along with its normalized value has been calculated as shown following. ⎛ X Ai = ⎜ ⎝ Yi where, X Y = Total area in sq. kms in ith CD block i Z i i i Aˆ = i ⎞ ⎛ X ⎞ i ⎟. ⎜ Z ⎟ ⎠ ⎝ i ⎠ = Total length of roads in kms in ith CD block = Total population in '000 persons in ith CD block A A max max − Ai − A min Access to safe drinking water source is one of the most crucial parameters which dictate the incidence of epidemics especially from water borne diseases in the aftermath of flood. Tropical cyclones, often leading to inundation and flooding contaminate the sources of the drinking water creating pathogenic condition and increasing the chances of mortality and morbidity in child and aged section of the population. Similarly, sources of defecation will guide the extent of contamination of the local water sources as well as the level of environmental degradation after the flooding. The vulnerability of water supply and sanitation facilities are estimated based on the percentage share of the households having access to sources of water with low chances of contamination (Tap and Tube well) as well as access to hygienic defecation facilities (Pit latrine and Water closet). ⎛ X i ⎞ Bi = ⎜ Z ⎟.100 ⎝ i ⎠ ⎛ Yi ⎞ Ci = ⎜ .100 Z ⎟ ⎝ i ⎠ where, X = Total no. of HH having access to safe drinking water in i th CD block Yi = Total no. of HH having access to safe sanitation facility in i th CD block Z = Total no. of HH in i th CD block i i Bˆ i = B B max max − Bi − B min ˆ C Ci = C max max − Ci − C min
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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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6.37 Figure 6 -15 Figure 6 -16
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6.39 Figure 6 -19 6.2.7. Recommenda
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6.41 4. Rajraj Swarup & Ramnagar Ab
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6.43 project. Such sediment deficit
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6.45 paludosa, Rhizophora apiculata
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6.47 15. Ceriops tagal 0.22 0.40 0.
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6.49 shelterbelt (average 100 m wid
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6.51 (assuming land acquisition cos
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6.53 location are missing reducing
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7.2 resulted in large scale waterlo
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7.4 5. No adverse effect in drainin
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7.6 15 LT Panel L.S. 2,200,000 16 I
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7.8 Bagjola, Kestopur and SWF chann
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Executive Cost Summary of Recommend
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References Kanjilal (2005) “Sunde
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“……………….Designingadis
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