Phenomenon Monster Wave

[Freeyourmindnow Profile]

Phenomenon Monster Wave


This rare photo of a rogue wave was taken by first mate Philippe Lijour aboard the supertanker Esso Languedoc, during a storm off Durban in South Africa in 1980. The mast seen starboard in the photo stands 25 meters above mean sea level. The wave approached the ship from behind before breaking over the deck, but in this case caused only minor damage. The mean wave height at the time was between 5-10 meters.

Rogue waves are happening more than before (also known as freak waves, monster waves, killer waves, extreme waves, and abnormal waves) are relatively large and spontaneous ocean surface waves that are a threat even to large ships and ocean liners.In oceanography, they are more precisely defined as waves whose height is more than twice the significant wave height (SWH), which is itself defined as the mean of the largest third of waves in a wave record. Therefore rogue waves are not necessarily the biggest waves found at sea; they are, rather, surprisingly large waves for a given sea state. "Rogue waves are not tsunamis, which are set in motion by earthquakes [and] travel at high speed, building up as they approach the shore. Rogue waves seem to occur in deep water or where a number of physical factors such as strong winds and fast currents converge. This may have a focusing effect, which can cause a number of waves to join together.

Once thought by scientists to exist only in legends, rogue waves are now known to be a natural ocean phenomenon. Eyewitness accounts from mariners and damages inflicted on ships have long suggested they occurred; however, their scientific measurement was only positively confirmed following measurements of the "Draupner wave", a rogue wave at the Draupner platform, in the North Sea on January 1, 1995. During this event, minor damage was inflicted on the platform, confirming that the reading was valid. Satellite images have also confirmed their existence.

Freak waves have been cited in the media as a likely source of the sudden, inexplicable disappearance of many ocean-going vessels. One of the very few cases in which evidence exists that may indicate a freak wave incident is the 1978 loss of the freighter MS München, detailed below. In February 2000, a British oceanographic research vessel sailing in the Rockall Trough west of Scotland encountered the largest waves ever recorded by scientific instruments in the open ocean, with a SWH of 18.5 meters (61 ft) and individual waves up to 29.1 meters (95 ft).[3] "In 2004 scientists using three weeks of radar images from European Space Agency satellites found ten rogue waves, each 25 metres or higher."

These Monster waves are not same as the typically wave models. Many years of research have confirmed that waves of up to 35 meters exist (115 ft). for centuries maritime folklore told of the existence of vastly more massive waves — veritable monsters up to 30 meters (98 ft) in height (approximately the height of a 10-story building) — that could appear without warning in mid-ocean, against the prevailing current and wave direction, and often in perfectly clear weather. Such waves were said to consist of an almost vertical wall of water preceded by a trough so deep that it was referred to as a "hole in the sea"; a ship encountering a wave of such magnitude would be unlikely to survive the tremendous pressures of up to 980 kPa (142 psi) exerted by the weight of the breaking water, and would almost certainly be sunk in a matter of minutes.

Rogue waves also occur on the Great Lakes. Freak waves may have contributed to the infamous sinking of the SS Edmund Fitzgerald in November 1975.

In the course of Project MaxWave, researchers from the GKSS Research Centre, using data collected by ESA satellites, identified a large number of radar signatures that have been portrayed as evidence for rogue waves. Further research is under way to develop better methods of translating the radar echoes into sea surface elevation, but at present this technique is not proven.

Because the phenomenon of rogue waves is still a matter of active research, it is premature to state clearly what the most common causes are or whether they vary from place to place. The areas of highest predictable risk appear to be where a strong current runs counter to the primary direction of travel of the waves; the area near Cape Agulhas off the southern tip of Africa is one such area; the warm Agulhas current runs to the southwest, while the dominant winds are westerlies. However, since this thesis does not explain the existence of all waves that have been detected.

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http://en.wikipedia.org/wiki/Rogue_wave

[Troll2rocks Profile]

Wow is that video real ?. (edit) no its a reconstruction. "very well done though"

I saw an horizon episode years ago about this subject, via sattilite they scanned for years looking for the dips in the ocean the darker the dip the deeper the cleft and the bigger the wave, via this method they were succesful after quite a while of searching. It was called Freak Wave. it was good. I think the wave they found on satilite was over 100 metres high.

Here is the first part, click vid if you want to see the rest.

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Good post, the ocean is very unpredictable and should not be looked at with dissmisive eyes. Itl kill you for it.

[Boondox681 Profile]

Wow is that video real ?.

ditto.that shit was insane

[Beerthirty Profile]

SURFS UP

[Freeyourmindnow Profile]

Wow is that video real ?. (edit) no its a reconstruction. "very well done though"

I saw an horizon episode years ago about this subject, via sattilite they scanned for years looking for the dips in the ocean the darker the dip the deeper the cleft and the bigger the wave, via this method they were succesful after quite a while of searching. It was called Freak Wave. it was good. I think the wave they found on satilite was over 100 metres high.

Here is the first part, click vid if you want to see the rest.

Upload to Disclose.tv

Good post, the ocean is very unpredictable and should not be looked at with dissmisive eyes. Itl kill you for it.

nice pictures. 100 meter wave... wow can you imagine?

[Freeyourmindnow Profile]

Wow is that video real ?.

ditto.that shit was insane

it is insane but the really weird stuff is that freak wave can happen just like that. without warning, in nice weather. Scientists still dont know how and why this happens. It should not be possible. but it is happening

[Freeyourmindnow Profile]

check this;

breaking-now-japanes-oil-tanker-s-being-attacked-t27927.html
thanks to savwafair

[Freeyourmindnow Profile]

hey guys, this is interesting new research;
Rogue Wave Prediction Spares Ships, Sailors
Lighthouses may safeguard ships from the shore, but light waves could keep them out of harm's way in the open ocean.
* Scientists have modeled ship-destroying ocean waves using light.
* The model demonstrates that lots of little waves come together to create one giant wave.
* With the help of meteorologists, giant, ship-sinking waves could be found and tracked in the open ocean.
http://news.discovery.com/tech/rogue-wa ... light.html