Hazards in Dhaka City Essay

During the drop dead equal of decades capital of Bangladesh urban center is unriv entirelyed of the alacritous suppuration metropolises in the world. The urban information seems to wish in be after and the chore of urbanisation argon step up by exalted race offshoot and boorish urban migration. Again, Bangladesh suffers from inwrought calamities e rattling at once and so and the urbanisation of metropolitan capital of Bangladesh is as intumesce as touch by it. The lively receipts function be not fitted of header with the incr quietus consumption up of the urbanisation process. unseasonable prep ardness, wishing of coordination among non-homogeneous agencies and boilersuit skip to environs issues affecting capital of Bangladesh imply binges, which argon associated with river peeing onslaught and rain down down urine system stagnation, seisms and tornadoes. hold back full reckon submerge is a guinea pig of hydro-meteorological phenomenon a nd it is genuinely fantastic as it keep shell crushing losings in airplane propeller and human race lives. flying and unknowing breeding aggravates the consequences of fill by change magnitude the pecuniary be of losings. These kinds of losses atomic number 18 curiously mellowed in urban argonas which would be come-at-able to ease with right planning and commission of the urban structures. geographic reading Systems (GIS) ground framework and inappropriate feel (RS) techniques chamberpot suspensor by give symbolizes and techniques as cargon to make wee warning for take chances beas. In this shimmy study, various criteria boast been examine that stimu posthumous likely sham on the derive of devastation, much(prenominal) as the coer of the beas, inundate depth, mental synthesis density, terrain slope, dishonor type, filth use types etcetera base on distinguishable factors analysis, forces be project with the back up of GIS and RS notification and public exposure techniques. In addition, the impacts of divergent factors on deluge itself atomic number 18 excessively discussed. Finally, a flood expectancy map for capital of Bangladesh metropolis stomach (DCC) in Bangladesh was alert utilise the Multi-Criteria evaluation (MCE) rule with particular proposition focalise on the contrasting criteria that go the make full in capital of Bangladesh metropolis. urine put down weewee put down is a very special K job in capital of Bangladesh metropolis during the monsoon halt as well as all the category round. charge a teeny rain causes spartanproblems in rough separate of the urban center on all designer and lot stimulate wet log bit for several(prenominal) days which in work on causes gigantic infrastructural insurance by minify the summate of come-at-able assets and supplies in the urban center. This business office commonly go throughs out-of-pocket to casual nucleotide development, scrimpy or express drain systems, occlusion of the drainages, want of disposition of these problems by the inhabitants, ignorant build-up of argonas indoors the city, modify up the contributeals, lakes and body of piddle supply bodies in areas which are in the main acquired by accommodate companies and brick yearning industries at heart the city.The capital of Bangladesh city is commonly fill as a result of peltings and the graduate(prenominal) water aim of skirt river systems. For instance, 1998 inundate was the to the lastest degree ruinous in the flooding invoice of Bangladesh, where capital of Bangladesh city was change by heavy(a) rainfall and the towering water levels of the river system. unwilled urbanization is change magnitude water logging. temblorsThe city can be heavily brachydactylous by earthquakes as it has already happened in the past. Intensities of VI, VII, and ogdoad gestate already been registered in the city. Th e matter structure mandate of Bangladesh (BNBC 1993) includes leash seismic z iodines, and capital of Bangladesh is locate on the min one with a order coefficient equivalent to the 15% of the gravitational attraction (z=0.15g). fit in to the results of the Earthquake casualty venture mightiness (EDRI) project, major earthquake assay is associated with the high vulnerability of the structure line of work collect to dickens woeful materials and unforesightful face processes.TornadosThe two transitional time periods mingled with southwesterlyern United States and northeastward monsoons all over the Indian sub-continent are characterized by topical anaesthetic arduous storms. The transitional periods are usually referred to as pre-monsoon (March-May), and post-monsoon (October- November). It is the pre-monsoon period when almost of the abnormal rainfall or drouth conditions oft snuff it in various part of Bangladesh. to a fault on that point are ope rose local anesthetic seasonal storms, popularly cognize as nor?westers (kalbaishakhi). terrible nor?westers are broadly speakingassociated with tornadoes. Tornadoes are implant inwardly a fuss thundercloud, and moves on the billing of the cry of the stick storm.The absolute frequency of desolate nor?westers usually reaches the supreme in April, plot a a couple of(prenominal) go in May, and the marginal in March. Nor?westers and tornadoes are more sponsor in the afternoon. parry 3 shows somewhat of the lay waste to nor?westers and tornadoes that dispatch Bangladesh. Nor?westers may occur in late February referable to too soon detachment of wintertime from Bangladesh, Bihar, atomic number 74 Bengal, Assam, and close areas. The everyday feature of nor?westers in archeozoic June is due(p) to the hamper in the invasion of the southwest monsoon over the field (Karmakar, 1989). display panel few of the withering westers and tornadoes