Articles tagged with Ocean Waves
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Dr. Seth Zippel has made significant contributions to the understanding of air-sea interaction, surface gravity waves, and boundary-layer turbulence through innovative field experiments and novel observational techniques. He is recognized for his impact on ocean mixing, weather and climate prediction, and offshore wind energy assessments.
A new study has found that the ocean's ability to absorb CO2 is stronger than previously assumed, with air bubbles playing a key role in this process. The research suggests that the ocean absorbed around 0.3-0.4 petagrams more carbon per year, about 15% more than previous estimates.
Research shows that intense storms in the Southern Ocean enable it to absorb more heat from the atmosphere. This helps regulate Earth's climate by reducing global warming. The study found that stronger storm activity generates lower surface temperatures across the ocean.
A study published in Nature Climate Change found that mesoscale horizontal stirring intensifies considerably in the Arctic and Southern Oceans, driven by stronger ocean flow and turbulence resulting from sea ice loss. This intensification could alter heat and nutrient transport, impacting marine ecosystems.
Researchers used a fiber-optic cable to capture calving dynamics across the fjord of a South Greenland glacier, documenting a 'crazy calving multiplier effect' that accelerates glacial mass loss. The data provides a deeper look at the relationship between ice and water, shedding light on the consequences of continued mass loss.
Researchers from University at Buffalo and University of Colorado Boulder have developed novel equations to characterize two-dimensional wave patterns, including the 'matrix tide' observed in China's Qiantang River. These equations use numerical simulations to model complex wave patterns that were previously difficult to solve.
Tiny droplets of sea spray can affect hurricane intensity, but measuring their concentration and size is challenging. Researchers at the University of Texas at Dallas are using lab experiments and simulations to develop a machine learning model that incorporates these factors.
Marine heatwaves in the South China Sea are categorized into intensified and attenuated types based on sea surface temperature trends. Ocean dynamics drive nearly half of intensified MHWs, challenging the traditional view that atmospheric heating dominates.
A recent study using SWOT satellite data has revealed the existence of powerful submesoscale eddies in the ocean, which play a significant role in shaping the climate system. These smaller currents carry surprisingly large amounts of energy and influence marine food webs, weather patterns, and events like El Niño and La Niña.
A 1,200-tonne boulder in Tonga is one of the largest known wave-transported rocks, providing new insights into past tsunamis. Numerical modelling suggests tsunami heights of 50m lasting 90 seconds dislodged the boulder from its cliff-edge origin.
Researchers linked comprehensive datasets with physical ocean processes to understand the exceptional marine biodiversity around the Cape Verde Archipelago. The study identified three key mechanisms driving nutrient transport and found that physical dynamics influence not only productivity but also the type of organisms present.
A new computer modeling tool suggests that Bronze Age people may have traveled directly over the open ocean between Denmark and Norway. The simulations indicate that such trips were possible, but required a boat with specific capabilities and good weather forecasting.
When two tropical cyclones collide in the Indian Ocean, they can intensify considerably, leading to extreme interactions between the ocean and atmosphere. The study found that effects occurred that have only been observed with much stronger cyclones, including a cooling effect of three degrees Celsius and upwelling of deep water masses.
A new neural network-based tool can predict the emergence of rogue waves up to five minutes into the future with 75% accuracy. The tool has been trained on 14 million sea surface elevation measurements and was able to correctly forecast rogue waves near 172 buoys in the continental US and Pacific Islands.
Arctic sea ice is expected to lose mass in the coming decade due to dominant natural climate patterns. Exposure to extreme temperatures, particularly heat, may lead to adverse birth outcomes in China. Researchers also found that ocean warming intensifies typhoons, but moderation comes from atmospheric temperature and humidity changes.
Researchers at Pohang University of Science & Technology have developed the first wide field-of-hearing metalens, overcoming traditional acoustic lens limitations. The device achieves up to 140 degrees of field-of-hearing without sound distortion, enabling new applications in acoustic imaging and high-sensitivity sensing.
A new study reveals that ocean waves re-emit PFAS into the air at levels comparable to other sources, creating a boomerang effect. This cycle transports toxic PFAS back onto land, posing health risks in coastal regions.
A new design for a liquid–solid triboelectric nanogenerator has increased the amount of wave energy that can be harvested from ocean waves. By repositioning the electrode, researchers were able to boost the device's conversion efficiency 2.4 times, demonstrating its potential for larger-scale applications.
A team of researchers developed a time-optimal control method for autonomous ships, optimizing maneuvering performance in dynamic sea conditions. The new control system accounts for various forces affecting ship movement and can improve efficiency and safety, reducing shipping costs and carbon emissions.
Korea Maritime & Ocean University researchers have developed a new method for assessing the path-following performance of autonomous ships in adverse weather conditions. The computational fluid dynamics model can provide more accurate predictions of path-following performance and enhance safety in autonomous marine navigation.
A new study by Colorado State University reveals that seismic signals show a growing intensity in ocean waves since the late 20th century, attributed to global warming. The research indicates that storms are becoming more intense and wave energy is increasing globally, posing a serious threat to coastal ecosystems and infrastructure.
A new study published in Scientific Reports has investigated the impact of long-term changes in ocean wave and storm surge conditions on sandy coastlines over the past 30 years. The research found no clear linkages between these changes and shoreline recession, with sediment supply, human management, and other factors likely playing a ...
Scientists have discovered weak, fossilised sediments beneath the seafloor of Antarctica's eastern Ross Sea, which led to massive underwater landslides. These layers made the area susceptible to failure due to past climate change.
Acoustic artist Colin Malloy transforms ocean data into captivating percussion songs, raising awareness about the impact of oil production on oceans. His music aims to encourage listeners to reflect on the issues surrounding oceans, leveraging the power of art to digest information on an emotional level.
A team of scientists has developed an AI model that can accurately predict ocean wave sizes, reducing the need for expensive and time-consuming numerical methods. The ConvLSTM model outperforms existing methods in terms of accuracy and efficiency, paving the way for real-time ocean forecasting.
Researchers at Oregon State University found a relationship between surface gravity waves and infragravity waves that fuel sneaker waves. Longer waves with more energy can run further up the beach, but not all long waves turn into sneaker waves.
The strongest Arctic cyclone ever observed poleward of 70 degrees north latitude caused a 30% greater loss of sea ice than previous records, with waves reaching up to 100 kilometers towards the center of the ice pack. Researchers suggest that existing models underestimate the impact of big waves on ice floes in the Arctic Ocean.
Research has found that extreme ocean waves can arise from modulation instability in multi-directional wave systems, challenging previous assumptions. The study demonstrates that crossing sea waves can trigger the formation of extreme waves, posing a growing risk to marine infrastructure and coastal communities due to climate change.
A team of researchers led by Francesco Fedele investigated the extreme sea states and potential hazards for ship navigation in the eastern Mediterranean. They developed a novel theory of space-time wave extremes, indicating that rogue waves do not 'steal' energy from neighboring waves.
A team from Kyoto University has demonstrated that deep-water wave groups can propagate independently, regardless of interference. This finding challenges existing understanding of ocean waves and has implications for fields like offshore engineering and plasma physics.
Tel Aviv University researchers develop innovative model that explains wave formation, tested in complex experiments. The model takes into account all unstable harmonics and limitations of previous models, providing high reliability for describing physical situation.
New research uses surfboard samples to analyze seasonal changes in phytoplankton, a crucial component of ocean food chains. The study finds that phytoplankton levels nearshore and offshore are similar in autumn, winter and spring, but higher nearshore during summer months.
Researchers discovered a connection between earthquake characteristics and tsunami size, finding that shallow rupture can produce larger tsunamis. This study suggests reevaluating the use of earthquake magnitude in estimating tsunami threats.
Researchers have developed a flexible triboelectric nanogenerator that mimics the movement of seaweed to efficiently convert surface and underwater waves into electricity. The device has been shown to generate power even at low water pressures, making it suitable for powering marine sensors in coastal zones.
A study by University of Plymouth researchers found that seabed habitats and species recover more quickly following extreme storms than from the impacts of bottom-towed fishing. The research examined the impact of the 2013/14 winter storms on the Lyme Bay Marine Protected Area, off southern England's coast.
Researchers at RMIT University have developed a wave energy converter that doubles the power harvested from ocean waves, overcoming technical challenges and unlocking vast untapped potential. The dual-turbine design is cost-effective and requires no special syncing technology.
Researchers developed a new modeling system to enhance dynamic positioning, allowing ships to stay fixed in challenging sea conditions. The approach includes a digital observer that translates wind or wave disturbances into specific measurements, enabling the vessel to respond in a reasonable timeframe.
Researchers developed a mathematical model to predict ice accretion on ships, helping improve safety in the Arctic climate. The model simulates the freezing of water droplets moving in cold air and their interaction with ship surfaces.
The Marsquake Service has detected over 500 marsquakes, with most being high-frequency events occurring at great distances. Low-frequency events are less common and appear to decay more quickly than expected.
Researchers at UC San Diego have developed a theoretical model explaining how pelicans exploit wind updrafts from breaking waves to conserve energy during flight. This discovery has potential applications in drone control and weather forecasting, highlighting the intricate dance between ocean, wind, and bird behavior.
A study using a scale model of a cylindrical fish cage found that artificially maintaining gentle currents inside the cage can suppress violent sloshing motions caused by ocean waves. This innovation aims to improve fish health and reduce environmental damage in sea-based fish farming systems.
A new theoretical model of wave formation in straits and channels accounts for nonlinear effects and improves wave prediction. The research can protect coastline infrastructure and make maritime travel safer.
A new study explores the potential of voyage optimization to reduce carbon intensity in short sea shipping. Researchers found that carbon intensity savings can reach up to 11% through route optimization, making it a viable operational measure for meeting short-term targets.
A three-year study in Del Mar, California has uncovered the relationship between wave impacts and coastal cliff erosion, with waves affecting the base of cliffs and rain impacting the upper region. The findings provide a new opportunity to improve forecasts and predict cliff retreat.
By analyzing crystal orientations from a 1959 Kilauea eruption, researchers inferred magma flow patterns prior to eruption, shedding light on past and potential future eruptions. The study's findings offer new insights into conduit dynamics, aiding in hazard prediction and monitoring.
Researchers decoded the origin of love waves, generated by ocean storms, which travel through the solid Earth. Stanford University geophysicist Lucia Gualtieri's study suggests that Love waves originate within the Earth itself, not on the seafloor.
Scientists have discovered that a tiny amount of molten rock, less than 0.7% by volume, is present in the asthenosphere under all oceanic plates, reducing the viscosity and 'decoupling' them from the underlying mantle. This research improves our understanding of plate tectonics and how it drives plate movement.
Researchers from GEOMAR found that short wind turns with strong cooling effect can explain the lower sea surface temperatures in tropical North Atlantic during summer months. Inertial waves, caused by brief variations in near-surface winds, trigger mixing between warm and cold waters.
A team of researchers developed an AI model to forecast complicated large-scale tropical instability waves in the Pacific Ocean. The model, which uses satellite data-driven deep learning, accurately predicted sea surface temperature evolution and captured TIW propagation's spatial and temporal variation.
Researchers from CNRS and University of Poitiers have explained the 'dead water' phenomenon in ships, where waves create drag, slowing down or stopping vessels. The study reveals waves act like an undulating conveyor belt, causing speed oscillations in trapped boats.
Researchers found echoes from features deep inside Earth, revealing more widespread and heterogeneous structures at the core-mantle boundary. The study provided a new perspective on the geologic processes happening deep inside Earth, shedding light on plate tectonics and planet evolution.
Researchers developed an algorithm to analyze ocean conditions and identify regions where objects are likely to converge. The technique uses data-driven ocean modeling and prediction systems to uncover hidden 'traps', providing first responders with a new perspective for search-and-rescue operations.
Researchers at MIT discovered that the waves produced on an egg's surface during fertilization are similar to those found in ocean and atmospheric circulations, as well as quantum fluids. The study reveals a universal wave pattern that helps organize cell division and formation of an organism.
Researchers used 35 years of satellite imagery to study the effects of climate change on kelp forests in Oregon, finding that warm water isn't always bad news for these near-shore seaweeds. The study also challenged previous assumptions about the impact of large winter waves on kelp populations.
A team of researchers from Harvard SEAS has designed deployable dome using bistable joints linked by rigid bars, demonstrating the potential for morphing surfaces, reconfigurable devices, and controlled energy absorption
Researchers have transformed submarine cables into a seismic network, tracking earthquakes and ocean waves. The new technology has the potential to fill blind spots in the global seismic network.
Cold waves triggered by Arctic sea ice loss are memorized in Eurasia, amplifying cooling in subsequent winters. The memory effect contributes to generating atmospheric circulation and advancing winter's arrival.
Researchers found that internal waves can reduce coral bleaching by up to 88% and prevent severe heating events. This natural cooling process may offer hope for coral reefs, but its impact is uncertain due to climate change.
The study demonstrates the creation of rewritable optical components for surface light waves using materials like GeSbTe. This enables the control and miniaturization of light at the nanoscale, with potential applications in single molecule chemical sensing.
Researchers found a connection between strong storms and intense seismic activity near the edge of continental shelves. Over 10,000 stormquakes were detected off the US and Canadian coasts from 2006 to 2019, lasting hours to days.