Weather Hazards 1

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Tropical storms form over warm ocean waters and move towards land, gaining energy from the heat of the ocean. They are known by different names like hurricanes, cyclones, or typhoons. Hurricanes form when rising warm air causes heavy rain, thunder, lightning and intense low pressure. The low pressure sucks in surrounding air which spirals inward and causes very strong winds. Hurricanes are a hazard due to their strong winds over 200km/h, heavy rainfall that causes flooding, and storm surges that push sea water inland and flood coastal areas. Hurricane Gilbert in 1988 was one of the most intense hurricanes on record, causing over $300 billion in damage and hundreds of deaths across the Caribbean.

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Managing the Physical Environment Weather Hazards How do storms develop?

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How do hurricanes form? ,[object Object],[object Object],[object Object],[object Object],Click here for Hurricane Animation Click here for an online test

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Case Study: Hurricane Gilbert ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Case Study: Hurricane Gilbert Why is emergency relief needed after a natural disaster?

Climate-related agricultural vulnerabilities, as well as their implications for food security and farm livelihoods, have been extensively documented. Extreme weather events such as floods, droughts, heat and cold waves, hailstorms, strong winds, cyclones, and other weather events have increased the exposures of agriculture to climate risk. These processes are hampered by a lack of appropriate climatic elements, resulting in an unfavourable drop in crop productivity. Increased frequency and intensity of droughts and floods, as well as erratic precipitation patterns are predicted to increase year-to-year yield variability in crop production. Microclimate, which refers to the climatic elements in the immediate vicinity of the plants, is critical because it regulates and affects the physiological reactions of the plants as well as the energy exchange activities between the plant and its surroundings. Implementation of such microclimatic modifications in crop production are required to manage extreme weather risks and boost crop output in order to increase food security and agricultural sustainability in this changing climate. The goal of this paper is to improve crop production and land productivity by modifying microclimate as a manifestation of the efficiency and effectiveness of growth factor utilisation.

Effect of climatic factors on cropMashooq Hussain

The term “ARTIFICIAL RAINFALL” refers to producing rain or increasing precipitation through clouds by using external agents. This is also known as Rain making and artificial precipitation. The artificial Rainfall produced to diminishing Drought. Drought is a slow onset disaster and caused by lack of rainfall. Its effect on a country can be magnified by lack of planning and management of water resources or storage system. It affects the lot of damage to the agriculture and farmers. By lack of water resources the crops are not growing to maturity stage, it causes the huge loss to farmers and it is main reason to increase the cost of living. The lack of clean water causes the harmful diseases like Diarrheal, Cholera, Typhoid fever, and Guinea worm disease. Water related diseases cause more than 3.4 million deaths each year. The forest fires, wildlife destruction, death of farm animals and humans due to hunger are main disasters caused by Drought or low rainfall. To drain the above disasters the artificial Rainmaking methods concept is promoted in 1891. Then they successfully invented the Rainmaking methods in 1930 by using Mechanical components and chemicals like Silver iodide, dry ice or solid carbon dioxide after performing a lot of experiments. By implementing this methods will surely reduces the formation of Drought and creates a Healthy and Green universe. By P. Jaswanth kumar

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