Tuesday, February 4, 2014

Storm

Posted by Atsumori. Category:

Hurricane winds is a vortex with wind speeds of 120 km / h or more are common in tropical regions between the Tropic of Cancer and south, except in areas very close to the equator. Hurricanes are caused by pressure differences in a weather system. The most strong winds that occur in the tropics is generally whirls with a radius of hundreds of kilometers around the area of extreme low pressure system with a speed of about 20 km / hour.

In short it can be explained that the wind is moving air. According to Buys Ballot, weather scientist from France, the wind is moving air mass from the maximum pressure area pressure area to a minimum. The movement of air masses is known as the horizontal direction of the wind. Cup anemometer is a device used to measure wind speed. The units used in determining the wind speed is km / h or knots (1 knot = 0.5148 m / s = 1.854 km / h). Sisteman naming winds usually associated with the direction of the air mass.


Miscellaneous wind storm in the world : 
  1. Hurricane
    is a large-scale storm that has a range of 100-1000 mile area. resulting from low pressure that occurs in warm temperate seas. If the wind is blowing in the sea, and with no regard to other factors that hurricanes tend to happen. hurricanes occur in the Atlantic and eastern Pacific oceans.
    Hurricanes produce rain and wind speeds between 74-160 miles per hour. Large floods are usually associated with this type of wind. hurricanes have spin counter-clockwise (cyclonic) in the northern hemisphere and vice versa in the southern hemisphere.
  2. Typhoon
    Hurricanes have a sense similar to the hurricane, the wind just happened in the western Pacific Ocean and thus tend to be larger than the intensity of hurricanes given the western part of the Pacific Ocean has a broader sea of the Atlantic.
  3. Tornado
    a storm tornadoes local areas having diameters between 50 m to more than 1.5 miles. Often appeared in the USA at the time of cold air from Canada meets warm air from Mexico. wind can blow at speeds of 60 to over 320 miles per hour, causing more damage than hurricanes. Tornado is usually followed by hail and lightning. This type of storm is very difficult to predict because of the short duration.
  4. Hurricanes, typhoons, tornadoes and heavy rain also long can we combine them all in one word STORM.
    Beaufort scale (a scale used to classify the types of wind), storms into the beaufort scale 11 with winds between 64-75 miles per hour, while the hurricane is on level 12 on a scale Beufort at speeds above 75 miles per hour
Symptoms and Early Warning
Tropical hurricanes can happen suddenly, but most of these storms are formed through a process of several hours or days that can be monitored by weather satellites. Monitoring by satellite can be to determine the direction of hurricanes so enough time to provide early warning. Despite this change in the weather is very complex systems that are difficult to make predictions quickly and accurately.


Mitigation Strategy for Disaster Reduction Efforts :
  1. Creating a structure that meets the technical requirements to be able to withstand the force of the wind
  2. The necessity of the application of standard rules that take into account building wind loads, especially in areas prone to hurricanes
  3. Placement is an important facility construction site in areas sheltered from typhoons.
  4. Greening at the top of the wind direction to dampen the force of the wind.
  5. Making public buildings are spacious enough to be used as temporary shelters for people and goods in the event of a hurricane strike.
  6. Security / retrofitting the parts easily by the wind which can be dangerous to themselves or others around them.
  7. Hurricane preparedness in the face, knowing how to rescue themselves
  8. Securing items around the house that are bound / built strong that the wind       
 
 

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