Over the last two-and-a-half centuries, 17 of the 22 severe tropical cyclones—each causing loss of more than 10, human lives—took place in the North Bay of Bengal. The use of radar for the precipitation estimate is based on the principle that the amount of echo return from a volume of cloud depends on the number and size of hydrometeros in it.
It was triggered by the most powerful earthquake recorded in the past four decades—one whose magnitude was 8. Nowadays, computer-based hydrological models are being used for inflow and flood forecasting.
These cannot travel through liquids or gases. The sufferings of the flood affected people know no bound. A state-of-the-art National Tsunami Early Warning Centre, which has the capability to detect earthquakes of more than 6 magnitude in the Indian Ocean was inaugurated in in India.
It remains the most widely known and used scale for measuring the magnitude of an earthquake. A circle of appropriate radius is drawn around each station. This is because as the depth of the water decreases, the speed of the tsunami reduces.
Another approach is to estimate the probabilistic occurrence of an earthquake statistically by relating the past occurrences to weather conditions, volcanic activity and tidal forces. Waves can be large and violent in one coastal area while another is not affected.
These beams are shot from an observatory to a geostationary satellite in space. The Bureau of Indian Standards issued building codes for construction of different types of buildings in different seismic zones in India. Richter magnitude effects are confined to the vicinity of the epicentre.
Somewhat slower are the secondary, or S, waves which propagate transversely in the form of snakelike wriggles at right angle to the directions of travel. Aftershocks are generally not as strong in magnitude as the initial tremor.
So they will travel at high speeds in deep waters and travel great distances as well losing little energy. Afforestation in the catchment areas, along the river banks, helps in maintaining the effective river volume.
Quarrying, road construction, and other building activity in sensitive catchment areas add to the soil loss. It will have pressure sensors to detect the water movement.
Natural Disasters on Earth:A natural disaster is the effect of a natural hazard. Bangladesh, a country in southern Asia that is home to million people, is widely known as a land of natural disasters.
It is highly vulnerable to floods, famine, drought, earthquake, cyclones, and river erosions. Due to the effects of these disasters, the country is now permanently in distress. Cause & Effect Essay: Natural Disasters and Their Causes Natural disasters happen all over the world, and they can be utterly devastating for people’s lives and the environments in which they live.
Natural Disaster of Bangladesh The rivers of Bangladesh mark both the physiography of the nation and the life of the people. About in number, these rivers generally flow south.
The larger rivers serve as the main source of water for cultivation and as the principal arteries of commercial transportation.
Sep 13, · Check out our top Free Essays on Natural Disaster Of Bangladesh to help you write your own Essay. Natural Disasters With the tropical climate and unstable landforms, coupled with high population density, poverty, illiteracy and lack of adequate infrastructure, India is one of the most vulnerable developing countries to suffer very often from various Natural Disasters, viz.
flood, cyclone, earthquake,forest fire, drought, etc. Asia tops the list of. Cyclones Droughts Earthquakes Floods Landslides Demographic Information: Population within 1km of coast 5, Population within 2 km of coast 10, Infant Mortality Rate 32 Multi-Hazard Disaster Risk Hotspots (All Hazards combined and weighted by Mortality and Proportion of GDP Impacted) Mortality GDP We will write a custom essay sample on Bangladesh.Download