Consequently, people have switched to occupations with lesser earnings, such as daily labour, rickshaw puller, brick field worker etc. Most of the people were engaged in agriculture allied activities, but after Aila, agricultural land had been converted into aquaculture. The research findings indicate that because of the cyclone Aila, economy of the area has taken downturn. Then different softwares like SPSS have been used for analysis and graphic presentation of the collected primary data, and ERDAS IMAGINE and ArcGIS have been used for mapping analysis and presentation. Primary data have been collected through questionnaire survey and group discussion while secondary data, especially satellite images have been collected from Google Earth. For the study required data has been collected from both primary and secondary sources. This study is an effort to discuss the inhabitants’ vulnerability and their adaptation strategies to economic changes caused by Aila, such as occupation, income, expenditure capacity, savings, housing structures, general and agricultural land use etc. Among these cyclones, Aila was a severe one that tore through the area in 2009 affecting the livelihood of the inhabitants. The Southern part, especially the coastal belt of the country is the worst affected area to cyclones and their ultimate effects. Spatial distribution of natural calamities portraits northern part as prone to flood, western part to drought, eastern part (basically hilly region) to flash flood and southern part to cyclone. As a result of climate change events, an increasing trend in frequency has been observed in recent time. Due to locational disadvantages, especially being situated at the tip of the funnel-shaped Bay of Bengal on the south and at the foot of Himalayas on the north, every year it experiences a number of different types of natural calamities, such as flood, cyclone, river bank erosion, drought etc. Related Posts Tags cyclones, cyclones in India, formation of cyclones.Bangladesh is a land of natural calamities. Categories 27 Sep CA, Today Article Tags cyclones, cyclones in India, formation of cyclones., naming of cyclones What is the latent heat of condensation?ĭiscuss the factors responsible for the formation of tropical cyclones.Why are there more cyclones in Eastern coast of India?.Naming of cyclones in various regions of the world.Factors responsible for the genesis of cyclones.The World Meteorological Organisation (WMO) maintains rotating lists of names. Also, the moist air that rises up forms clouds leading to rains that accompany gusting winds during cyclones. What happens when a cyclone hits the land?Ĭyclone dissipates when it hits the land as the warm water that rises and creates space for cool water is no longer available on land. So while moving to the centre, cool air keeps getting deflected resulting in circulation of wind movement - this process continues until the cyclone hits the land. But when it reaches the warmer place, cool air starts getting attracted to the centre to fill the gap. So, wind is already blowing in a direction.Wind coming from the Arctic is deflected to the right while Antarctic wind deflects to the left side. The Earth’s rotation on its axis causes deflection of the wind (in the tropical region as the speed of spinning of Earth is higher compared to polar sides due to its spherical shape - blowing from both the polar regions. Then comes the Earth’s movement, which is west to east.So, wind blows from polar regions to tropical regions. Polar regions are high pressure areas as the amount of sunlight here is less than the tropical region. High pressure areas are created in the cold region while low is created in the warm regions. Wind always blows from high pressure to low pressure areas. Due to warming of the surface, the warm moist air over the ocean rises upwards following which cool air rushes in to fill the void, they too get warm and rise - the cycle continues. In this region, the sunlight is highest which results in warming of land and water surface. It is formed in the Bay of Bengal Region.Ĭyclones are formed over the oceanic water in the tropical region. Topics Covered: Important Geophysical phenomena such as earthquakes, Tsunami, Volcanic activity, cyclone etc.Ĭyclone ‘Gulab’ is likely to hit east coast of India.

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