Largest ever wave recorded in southern hemisphere

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The record holder for waves worldwide, according to the World Meteorological Organization, is a 19-meter (62.3 feet) significant wave height measured by a buoy in the North Atlantic on February 4, 2013.

"It's very probable that larger waves occurred while the buoy was not recording", he said. The intense storm that has lashed the Southern Ocean around New Zealand and Campbell Island will soon be giving surfing enthusiasts in California powerful waves of their own, according to Oceanographer Tom Durrant, and these should be striking sometime within the next week, as ScienceAlert report.

In this case, a deep, low-pressure system and high winds exceeding 74 miles per hour (65 knots or 120 km/h) helped to create the ideal conditions for the enormous wave.

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The buoy is solar powered and was installed by MetService in March this year. But unlike the wave heights recorded by ocean buoys, the height of this wave was decided by a matter of estimation, based on comparing it to Koxa's crouching height in photos.

The huge wave that struck close to the coast of New Zealand was so massive that it would have even crashed beyond the top of the White House and is the equivalent a building that is eight stories high. "So, this is a very important storm to capture, and it will add greatly to our understanding of the wave physics under extreme conditions in the Southern Ocean", said Durrant. More than ten times the height of an average Christmas tree.

"The persistent and energetic wind conditions here create enormous fetch for wave growth, making the Southern Ocean the engine room for generating swell waves that then propagate throughout the planet", said Durrant. And on the night of May 9th, those researchers looked at the numbers that little buoy was sending back and saw something incredible: the largest wave ever recorded in the Southern Ocean. It measured 30.5 meters (100 feet) and was caused due to a tsunami, which killed five people. The World Meteorological Organization uses something called "significant wave height" to characterize the sea state.