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13 meter high tsunami waves created by the destruction. (Picture from: http://www.allvoices.com/) |
Mysteries high tsunami waves swept inland when the tsunami uncovered by researchers from University College Dublin, Ireland. From the data two major tsunami in Indonesia, they concluded that the tsunami caused by an unusual altitude wave resonance.
Tsunamis are generally composed of many waves that come alternately. In some cases, the first wave is not the highest waves and cause the greatest damage. The biggest wave occurred after the first wave subsided.
Tsunami researchers have modeled the standard equation in a big wave. However, such simulations always result in increased wave lower than the actual event.
Tsunami researchers from University College Dublin, Frederic Dias, exemplifies the Pangandaran tsunami on July 17, 2006. At that time, an earthquake of 6.8 on the Richter Scale generate tsunami waves as high as 6 meters, larger than the modeling results.
Initially researchers suspect the wave height is reinforced by submarine landslides. But this is also not enough to explain the whole incident. "Investigators puzzled by a problem of tsunami wave height due to only think about the tsunami as the wave up the beach, then recede," said Dias.
Dias suspect the tsunami could be higher when the first wave interaction with the wave that followed later. After reaching the mainland, the wave will recede lower than sea level, thereby storing energy to return to the mainland.
This gives a boost of energy in the second wave. The combination of these two waves create a second wave that tossed the mainland is higher than the first wave.
Laboratory simulations show that using a miniature beach strengthen resonance wave heights up to 60 times greater than the calculation on paper. Simulations with a miniature beach and mountain valleys below the sea floor ensures a high wave resonance is still happening.*** [PHYSICAL REVIEW | ANTON WILLIAM | KORAN TEMPO 3652]
Tsunamis are generally composed of many waves that come alternately. In some cases, the first wave is not the highest waves and cause the greatest damage. The biggest wave occurred after the first wave subsided.
Tsunami researchers have modeled the standard equation in a big wave. However, such simulations always result in increased wave lower than the actual event.
Tsunami researchers from University College Dublin, Frederic Dias, exemplifies the Pangandaran tsunami on July 17, 2006. At that time, an earthquake of 6.8 on the Richter Scale generate tsunami waves as high as 6 meters, larger than the modeling results.
Initially researchers suspect the wave height is reinforced by submarine landslides. But this is also not enough to explain the whole incident. "Investigators puzzled by a problem of tsunami wave height due to only think about the tsunami as the wave up the beach, then recede," said Dias.
Dias suspect the tsunami could be higher when the first wave interaction with the wave that followed later. After reaching the mainland, the wave will recede lower than sea level, thereby storing energy to return to the mainland.
This gives a boost of energy in the second wave. The combination of these two waves create a second wave that tossed the mainland is higher than the first wave.
Laboratory simulations show that using a miniature beach strengthen resonance wave heights up to 60 times greater than the calculation on paper. Simulations with a miniature beach and mountain valleys below the sea floor ensures a high wave resonance is still happening.*** [PHYSICAL REVIEW | ANTON WILLIAM | KORAN TEMPO 3652]
