Meteotsunami
Encyclopedia
| City | Country | Max Height (m) |
|---|---|---|
| Nagasaki Bay | Japan | 4.8 |
| Pohang Pohang Pohang is a city in North Gyeongsang Province, South Korea, and a main seaport in the Daegu-Gyeongbuk region. The built-up area of Pohang is located on the alluvium of the mouth of the Hyeongsan River... Harbour |
Korea | 0.8 |
| Longkou Longkou Longkou , formerly Huang County , is a port city in northeastern Shandong Province, on the eastern coast of the People's Republic of China. Longkou, a county-level city, is administered by the prefecture-level city of Yantai. The total population of Longkou is 620,000.-History:Longkou city was... Harbour |
China | 3 |
| Ciutadella Ciutadella Ciutadella de Menorca or simply Ciutadella is a town and a municipality in the western end of Minorca, one of the Balearic Islands . The name means "citadel". It is one of the two main cities in the island, along with Maó.-History:... Harbour |
Spain | 4 |
| Gulf of Trieste Trieste Trieste is a city and seaport in northeastern Italy. It is situated towards the end of a narrow strip of land lying between the Adriatic Sea and Italy's border with Slovenia, which lies almost immediately south and east of the city... |
Italy | 1.5 |
| West Sicily Sicily Sicily is a region of Italy, and is the largest island in the Mediterranean Sea. Along with the surrounding minor islands, it constitutes an autonomous region of Italy, the Regione Autonoma Siciliana Sicily has a rich and unique culture, especially with regard to the arts, music, literature,... |
Italy | 1.5 |
| Malta Malta Malta , officially known as the Republic of Malta , is a Southern European country consisting of an archipelago situated in the centre of the Mediterranean, south of Sicily, east of Tunisia and north of Libya, with Gibraltar to the west and Alexandria to the east.Malta covers just over in... |
Malta | 1 |
A meteotsunami or meteorological tsunami is a tsunami
Tsunami
A tsunami is a series of water waves caused by the displacement of a large volume of a body of water, typically an ocean or a large lake...
-like wave
Wave
In physics, a wave is a disturbance that travels through space and time, accompanied by the transfer of energy.Waves travel and the wave motion transfers energy from one point to another, often with no permanent displacement of the particles of the medium—that is, with little or no associated mass...
phenomenon
Phenomenon
A phenomenon , plural phenomena, is any observable occurrence. Phenomena are often, but not always, understood as 'appearances' or 'experiences'...
of meteorological origin. Tsunamis and meteotsunamis propagate in the water in the same way and have the same coastal dynamics. In other words, for an observer on the coast where it strikes the two types would look the same. The difference is in their source only. One definition of a meteotsunami is as an atmospherically generated large amplitude seiche
Seiche
A seiche is a standing wave in an enclosed or partially enclosed body of water. Seiches and seiche-related phenomena have been observed on lakes, reservoirs, swimming pools, bays, harbors and seas...
oscillation.
The principal source of these tsunami-like ocean waves are travelling air pressure disturbances, including those associated with atmospheric gravity waves, roll clouds, pressure jumps, frontal passages
Surface weather analysis
Surface weather analysis is a special type of weather map that provides a view of weather elements over a geographical area at a specified time based on information from ground-based weather stations...
, and squall
Squall
A squall is a sudden, sharp increase in wind speed which is usually associated with active weather, such as rain showers, thunderstorms, or heavy snow. Squalls refer to an increase in the sustained winds over a short time interval, as there may be higher gusts during a squall event...
s, which normally generate barotropic
Barotropic
In meteorology, a barotropic atmosphere is one in which the pressure depends only on the density and vice versa, so that isobaric surfaces are also isopycnic surfaces . The isobaric surfaces will also be isothermal surfaces, hence the geostrophic wind is independent of height...
ocean waves in the open ocean and amplify them near the coast through specific resonance mechanisms. In contrast to "ordinary" impulse-type tsunami sources, a travelling atmospheric disturbance normally interacts with the ocean over a limited period of time (from several minutes to several hours).
These types of waves are common all over the world and are better known by their local names: rissaga (Catalan
Catalan language
Catalan is a Romance language, the national and only official language of Andorra and a co-official language in the Spanish autonomous communities of Catalonia, the Balearic Islands and Valencian Community, where it is known as Valencian , as well as in the city of Alghero, on the Italian island...
), milghuba (Maltese
Maltese language
Maltese is the national language of Malta, and a co-official language of the country alongside English,while also serving as an official language of the European Union, the only Semitic language so distinguished. Maltese is descended from Siculo-Arabic...
), marrobbio (Italian
Italian language
Italian is a Romance language spoken mainly in Europe: Italy, Switzerland, San Marino, Vatican City, by minorities in Malta, Monaco, Croatia, Slovenia, France, Libya, Eritrea, and Somalia, and by immigrant communities in the Americas and Australia...
), abiki (Japanese
Japanese language
is a language spoken by over 130 million people in Japan and in Japanese emigrant communities. It is a member of the Japonic language family, which has a number of proposed relationships with other languages, none of which has gained wide acceptance among historical linguists .Japanese is an...
).
See also
- TsunamiTsunamiA tsunami is a series of water waves caused by the displacement of a large volume of a body of water, typically an ocean or a large lake...
- Historic tsunami
- Tsunami warning systemTsunami warning systemA Tsunami warning system is used to detect tsunamis in advance and issue warnings to prevent loss of life and damage. It consists of two equally important components: a network of sensors to detect tsunamis and a communications infrastructure to issue timely alarms to permit evacuation of coastal...
(TWS) - Deep-ocean Assessment and Reporting of TsunamisDeep-ocean Assessment and Reporting of TsunamisThe Deep-ocean Assessment and Reporting of Tsunamis system is a component of an enhanced tsunami warning system.- Stations :...
(DART) - MegatsunamiMegatsunamiMegatsunami is an informal term to describe a tsunami that has initial wave heights that are much larger than normal tsunamis...
- Rip currentRip currentA rip current, commonly referred to by the misnomer rip tide, is a strong channel of water flowing seaward from near the shore, typically through the surf line. Typical flow is at 0.5 metres per second , and can be as fast as 2.5 metres per second...
- Significant wave heightSignificant wave heightIn physical oceanography, the significant wave height is defined traditionally as the mean wave height of the highest third of the waves , but now usually defined as four times the standard deviation of the surface elevation...
- Undular boreUndular boreIn meteorology, an undular bore is a wave disturbance in the Earth's atmosphere and can be seen through unique cloud formations. They normally occur within an area of the atmosphere which is stable in the low levels after an outflow boundary or a cold front moves through.In hydraulics, an undular...