Lmst

ABC News: Wave drags man into ocean at same park where a father and daughter died days earlier

A search-and-recovery operation stretched into its second day on Sunday for a man who was swept into the Pacific Ocean.

(Garrapata State Park again)

https://abcnews.go.com/US/video/wave-drags-man-ocean-same-park-father-daughter-127808998?

The #Giant #Waves #Scientists Refused to #Admit Exist by #AstrumEarth #yt #roguewaves

Riesenwellen können enorme Höhen erreichen, doch ihre Ursachen sind strittig. Jetzt liefern Daten aus der Nordsee neue, überraschende Einblicke – und widerlegen eine gängige Theorie. #Riesenwellen #Roguewaves #Nordsee #Wellen
https://www.scinexx.de/news/geowissen/entstehen-riesenwellen-anders-als-gedacht/

Many models for forecasting ocean waves simplify the physics by assuming that waves are essentially two-dimensional, like a long breaker heading toward shore. But in the open ocean, waves often come from more than one direction; crossing seas are a good example. When waves from different directions combine, a recent study shows, the resulting wave can grow far larger and steeper than expected. These monstrous rogue waves are especially dangerous for offshore infrastructure like oil rigs and wind turbines, which must be built to withstand rare but extreme waves. (Image credit: O. Мороз; research credit: M. McAllister et al.; via Gizmodo)

https://fyfluiddynamics.com/2024/10/breaking-in-rogue-seas/

#breakingWave #fluidDynamics #oceanWaves #physics #rogueWaves #science

Most theories approximate ocean waves as two-dimensional, but experiments show that three-dimensional breaking waves can grow far larger.

The most extreme rogue wave occurred in November 2020, lifting a single buoy off of Canada's British Columbia coast some 58 feet high. Since then, dozens more rogue waves have been recorded (some even in lakes). @ScienceAlert has more on this aquatic phenomenon that was once considered a myth. And if buoys could talk, the one that went for a wild ride would tell you how very real rogue waves are: https://flip.it/AILAJv
#Science #Ocean #PacificOcean #Waves #RogueWaves

Rogue waves — rare waves much larger than any surrounding waves — have long been a part of sailors’ tales, but their existence has only been confirmed relatively recently. The exact mechanisms behind them are still a matter of debate. Laboratory experiments with mechanically-produced waves have created miniature rogue waves, but we still lack real-world observations of their formation.

To that end, researchers sailed the Southern Ocean, known for its rough waves, during austral winter and observed the state of the wind and waves nearby using stereo cameras. They found that young wind-driven waves tend to be steeper, and they move slower than the wind, as they’re still drawing energy from it. Older waves, in contrast, were shorter, less steep, and less likely have white caps from breaking. Overall, they found that strong winds could more easily drive young waves into the nonlinear growth that leads to rogue waves. (Image credit: S. Baisch; research credit: A. Toffoli et al.; via APS Physics)

https://fyfluiddynamics.com/2024/04/seeking-rogue-wave-origins/

#fluidDynamics #nonlinearDynamics #oceanWaves #physics #rogueWaves #science #wind

Rogue waves are rare but monstrously large waves whose origins are still a matter of debate.

ROGUE WAVES
HOW STUFF WORKS
Mastodon Post

For some reason, rogue waves were in this morning's news at my usual news site.

Long ago, I heard a discussion on paranormal radio that touched on the search for a hundred foot wave.

These two things got me to searching the Web for the largest rogue wave ever observed.

HowStuffWorks

What Was the Largest Wave Ever Recorded?

By: Clarissa Mitton | Apr 16, 2024

https://science.howstuffworks.com/environmental/earth/oceanography/largest-wave-ever-recorded.htm

"The highest rogue wave ever recorded measured 84 feet (25.6 meters) in height and was detected by a Norwegian oil platform in the North Sea in 1995, making it the most extreme rogue wave observed in modern maritime history."

We're waxing down our surf boards
We can't wait for June .....
-- Surfin' USA

#clarissamitton #howstuffworks #oceanography #paranormalradio #roguewaves #sciencenews #surfingusa #surfinusa

:::

surf's up! #RogueWaves https://www.sci.news/othersciences/geophysics/strong-winds-colossal-rogue-waves-12859.html

A team of physical oceanographic scientists on the South Africa research #icebreaker S.A. Agulhas-II used stereo-cameras to directly measure self-amplification of wind #waves in the Southern Ocean, which can produce rogue waves.
#oceanography #RogueWaves

https://theconversation.com/rogue-waves-in-the-ocean-are-much-more-common-than-anyone-suspected-says-new-study-225352

Freak waves cause damage at US army base, shut airports in remote islands

by Giff Johnson
22 January 2024

"Powerful waves, driven by offshore storm surges, hit an important US military installation in the #MarshallIslands on Saturday night, causing damage and resulting in the evacuation of all 'non-mission personnel' from the island.

"#Flooding caused by the waves also hit two airports at #AilinglaplapAtoll, leaving rocks, coral and debris in their wake, keeping those airports closed for weeks. Other islands reported flooding and moderate damage.

"The US Army in a statement on Sunday afternoon that at approximately 9pm on January 20, 'a series of #weather-induced waves hit #RoiNamur which caused significant flooding in the northern portions of the island".

"A video circulating from Roi-Namur, an island at the northern end of Kwajalein Atoll, shows an approximately one-metre wave hitting the Army's dining hall, breaking down doors, knocking people down and washing them from outside into the facility."

#ClimateChange #RogueWaves #ClimateCatastrophe #NuclearWaste #NuclearWasteDome #WasterIsLife

Eight people taken to hospital as waves up to 30ft high pound California coast

Six million people under high surf warning as powerful storms sweep through #California and #Oregon

by Maanvi Singh in Oakland, California, and Erum Salam
Fri 29 Dec 2023

"#GiantWaves as tall as 30ft crashing on to California’s coast have caused injuries and property damage, prompting evacuation warnings.

"At least eight people needed hospital treatment after towering waves crashed over seawalls in southern California on Thursday, engulfing seaside neighborhoods. On Friday, more than 6 million people remained under a high surf warning across California and Oregon. The National Weather Service (NWS) has predicted waves up to 40ft, warning: 'Stay away from rocks, jetties, piers, and other waterside infrastructure. Never turn your back to the ocean!'

"The season’s first huge swell, propelled by #GaleForceWinds across the Pacific Ocean, and a swath of low pressure off the west coast, combined with strong rains along parts of California, have created treacherous conditions. Evacuation orders were issued for Stinson beach in Marin county, north of San Francisco, and for parts of Santa Cruz along the central coast.

"The Los Angeles-area weather office wrote that powerful cyclones over northern Pacific waters were sending 12-17ft (3.6-5-meter) swells, creating 'tremendous wave energy across coastal waters'.

"At some points along California, breaking waves were predicted to reach 25ft (7.6 meters). Astronomical high tides were adding to a significant risk of more coastal flooding, forecasters said.

"'Overall, this is expected to be an exceptional high-surf and coastal #flooding event that has not occurred in many years,' the weather service said. 'Take caution and heed the direction of local authorities and lifeguards. Never ever turn your back to the water as damaging and life-threatening sneaker waves are likely to occur.'

"In the #BayArea region, there is a chance of thunderstorms into Saturday morning, according to the NWS. The weather service office in Medford, Oregon, also expected hazardous beach conditions and gusty winds of 30-50mph on Friday, warning of possible infrastructure damage.

"Surfers and beachgoers in Los Angeles and much of southern California are being warned that the risk of drowning is high, and several beaches and state parks across the state have been closed due to the weather.

"High surf is often a hazard of California winters. During the winter of 2020-2021, several people, including young children, died in the Bay Area after being swept out to sea by unexpectedly strong waves. Officials worry that risks are heightened this holiday weekend, when families often flock to the beach.

"A study this year found that California’s winter waves have gotten taller, and big waves have become more frequent since the 1970s, due to #ClimateChange."

#CaliforniaWx #OregonWx #RogueWaves #WeatherExtremes

A new way to predict #ship-killing #roguewaves
#AI models can find patterns and make predictions, but their reasoning is often inscrutable. "Black box" issue makes AI less reliable and less scientifically useful. A team led by Dion Hafner (Univ Copenhagen) devised a #neuralnetwork to predict rogue waves. By restricting inputs to meaningful #wave measurements and tracing how flows through network, team extracted a simple five-part equation encapsulating the AI's logic.
https://www.economist.com/science-and-technology/2023/11/22/a-new-way-to-predict-ship-killing-rogue-waves

KI findet Formel für Riesenwellen. Künstliche Intelligenz identifiziert Ursachen von Rogue Waves und erstellt Vorhersage-Gleichung. #Riesenwellen #RogueWaves #Ozean #Meereswellen #Monsterwellen #KI #KuenstlicheIntelligenz
https://www.scinexx.de/news/geowissen/ki-findet-formel-fuer-riesenwellen/

#RogueWaves sounds like a great background for an #SFF or horror story
https://www.stuff.co.nz/science/300895478/scientists-thought-these-monster-waves-were-myth-now-theyre-racing-to-understand-them

The Bermuda Triangle, a notorious area in the Atlantic Ocean where many ships and planes have disappeared, may have a natural explanation. Scientists have found that the region is prone to rogue waves, which are massive and unpredictable waves that can reach up to 30 meters high. These waves could easily overwhelm and sink vessels without a trace.

#BermudaTriangle #RogueWaves #Mystery

https://www.unilad.com/community/bermuda-triangle-mystery-solved-464047-20230430