Unit VII Web - 1 What types of winds were required in each...

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1. What types of winds were required in each level of the atmosphere? Describe the wind speed and direction at each level. Answer: The wind need to be medium or light in speed and should blow from same direction at each level of the atmosphere. The wind speed maintains the core of the storm to be aligned with the warm surface. Moreover, if wind at each level of atmosphere blow in different direction, it produce a vertical shear that causes disruption in the circulation of cyclone. 2. Why is it critical that all levels blow in the same direction to form a tropical storm? What happens when you have lower winds blowing a different direction than upper winds? Answer: The vertical wind shear is taken as the rate of change of wind velocity with altitude. The vertical wind shear between the surface and the upper troposphere must have low values (less than about 10 m/s [20 mph]) and it can only happened if the wind blows in same direction at each level. Moreover, the large values of vertical wind shear remove the rising moist air very quickly, thereby preventing the development of the tropical cyclone. Apart from that, if the cyclone has already formed, the large vertical shear can weaken or destroy it by interfering with the organization around the cyclone center. The strong vertical shear may prevent the storm to rise to its full potential and causes the spreading of energy over too large area. It prevents the storm to strengthen. 3. It seems intuitive that stronger winds would be better for forming a hurricane. Why is this not the case? Answer: If the winds increase too much with altitude, the core of the cyclone will not be vertically aligned over the warm surface that is responsible to provide the energy. As a result the
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