A farmer in central Queensland have recorded what looked like a big ball of water that falls from the storm clouds. The phenomenon occurred on January 27, 2015 at 80 kilometers (50 miles) northeast of Rome, or 500 kilometers (311 miles) northwest of Brisbane. This phenomenon is known by meteorologists as Microbursts.
Microburst is a downdraft (wind crashing down) on a small scale and very intense which fell to the ground which causes the differences / deviations strong wind. A microburst downdraft originally developed when started to slide down from the rain clouds. Area taken by it is usually less than 4 kilometers. Microbursts are capable of producing more than 100 mph winds causing significant damage. Span of the occurrence of a microburst is approximately 5-15 minutes.
When it rains or mixed with dry air, it begins to evaporate and this evaporation process cools the air. The cool air down and accelerates as it approaches land. When the cool air before approaching the ground, it will spread in all directions and the wind direction deviation is called a microburst. In humid climates, microburst can also be produced from high rainfall.
Peter Thompson, who recorded microburst phenomenon with his cell phone camera described the event as like a "ball of water falls" and "looks like the bottom of the cloud fall." Said Thompson, "I think of when I first started seeing the ball was formed until he touches the ground , only about two minutes. "
Microbursts speed to throw anything that "bypassed" it really is very dangerous for the flight. During phase explosion on or near the clouds, the wind "curly" as cold air from the microburst moving away from the impact point on the ground. (Also called cushion stage). During the stage bearings, wind curly had continued to move quickly in a horizontal plane butted very threatening. The illustration above can be a little describe the process of microburst.
Microburst is classified as dry or wet microbursts, depending on how much rainfall accompanying microburst when it reaches the ground.
Australian Bureau of Meteorology's website notes that microbursts can also occur without heavy rain, creating a sudden downdraft of air that proved deadly for the pilot. In this case, most of the rain has evaporated before reaching the ground.
Microburst less socialized among our flight operator, so it is rarely heard microburst phenomenon involved in each case of aircraft accident investigation, although he may often coming as it does in other countries. As the results of research in the US, it is known that the microburst is one cause of the crash around the runway.
Thompson's microburst occurred on 27 January, when the temperature in the area has reached 39°C.
Written By : Arbha ~ Public-DYK
You Are Reading Article About Microburst - Dangerous Wind for Aircraft. You Can Follow Arbha At Facebook And Twitter For More Information About Public-DYK. You Can Share This Article, But You Must Insert The Source Of This Article ! *protected by DMCA
0 comments:
Post a Comment