India: flash floods — a phenomenon meteo-tsunami

Unusual flooding, flooding Morjim and Baga beaches, gradually recedes. Tsunami expert suggested that the flooding could be caused by the so-called meteo-tsunami, which has happened in the same West Coast in Kerala.

— There were no strange meteorological disturbances along the coastline — the source — There was no pressure drop, the wind was not abnormally strong, though blowing with gusts that could partially contribute to flooding. In all likelihood, the wave came ashore from a distant storm.

This phenomenon, which the inhabitants of Kerala is mistaken for a tsunami attacked the coast of the southern state in Punthury in May 2005, April 2007 and February 2008. Called Kerala fishermen "kallakkadal" (literally — "the sea comes unnoticed like a thief"), the flooding of coastal areas has been documented by international scientific journals.

Element reaches its greatest strength for the spring high tides. Case in Baga and Morjim was one such. But by Thursday, the sea level in Baga started lowers.

— The water level rose to seven meters on Tuesday, to the environment down to five meters, and on Thursday fell to the three above normal, — the owner of the hut Mario D'Souza. Agree with him Jenny Madeira, the landlord of Morjim, which nothing like this had never seen.

Impact and destruction caused by geophysical tsunamis afraid of people around the world. At the same time, the actions of meteo-tsunamis known much less because they offer less havoc on a smaller scale. Tsunami expert believes that in Baga and Morjim could show a new type of the phenomenon, not the same as in Kerala.

Detailed reports of flooding and meteorological tsunamis around the world were represented in the book by Anthony Joseph, a scientist at the National Institute of Oceanography. Work entitled "Tsunamis: Detection Technologies, monitoring and early warning," was published in February 2011.

Huge waves of the sea off the coast or meteorological tsunamis are caused by atmospheric gravity waves, drop in atmospheric pressure, wind waves, and other factors, but the damage from them is usually lower than the geophysical tsunamis. Other mechanisms by which meteorological tsunamis include tidal waves, merger waves, wind and atmospheric shock waves (eg, volcanic activity).

Waves generated by atmospheric factors, whose origin remains a mystery, recorded in the recent past on the Adriatic Sea, the English Channel, in Washington, and in some places the Mediterranean.

According to the expert, meteo-tsunami remind vagrant, abnormal, giant waves. Sea while encroaching on the land in the absence of any previous weather events. Nothing usually does not indicate such a development.

Translation: Vitaly Semkin
Source: THE TIMES OF INDIA

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