Articles tagged with Ocean Physics
Researchers at OIST and University of Turin developed a general formulation for mixing heavy particles with fluid, enabling study of fundamental physics phenomena and applied research in fluid engineering. Simulations reveal the formation of sediment plumes and the role of friction in particle interactions.
A Rutgers researcher finds bacteria accelerate calcium carbonate dissolution in shallow seas, potentially slowing carbon sequestration and influencing climate change. The discovery sheds light on the ocean's biological carbon pump and its future implications.
Researchers developed a new AI-based SLA forecasting model that outperforms existing approaches and can be widely applied to other prediction tasks. The Multistep-Earthformer model achieves high-accuracy short- and medium-range sea level anomaly forecasting by optimizing training strategies.
The FAU project will integrate high-resolution modeling, observational data, and advanced machine learning to improve understanding of regional sea-level variability in the Gulf of America. The team aims to produce decision-relevant scenario outputs and empower stakeholders with actionable information for future-oriented decisions.
New research from the University of Copenhagen suggests that volcanic eruptions during the Ice Age may have disrupted the AMOC, threatening Denmark's climate. The study shows that extreme volcanic eruptions can throw the climate system out of balance and push the AMOC into a weakened or collapsed state.
Researchers on M217/1 expedition study upwelling system and extreme events off southwest African coast, focusing on Coastal Kelvin waves and Benguela Niños. Key findings include the seasonal upwelling without wind off Angola and the causes of marine heatwaves that disrupt marine ecosystems.
A new study reveals that offshore wind farms can create complex wake structures that interact with each other, affecting surface currents and sediment transport. The research suggests that turbines spaced farther apart can reduce turbulence caused by tidal wakes, leading to optimized wind farm designs.
Researchers from The University of Osaka developed a novel device to harness wave power, achieving high energy absorption efficiency across broadband frequencies. By tuning gyroscopic parameters, the device can maximize performance, providing a roadmap for developing adaptable and efficient wave energy converters.
Researchers have developed a new method for cleaning oil spills using massive fire whirls, which can burn through crude oil nearly twice as fast as in-situ fire pools. The results show that fire whirls produce 40% less soot and consume up to 95% of the fuel, leaving fewer harmful particles behind.
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 sea surface height prediction model, GTU-Net, combines deep learning and physics-informed constraints to improve accuracy. The model outperforms existing mainstream models across multiple metrics and demonstrates higher accuracy up to 60 days.
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.
A team of scientists, led by UC Santa Barbara's David Siegel, embarked on a research expedition to the North Atlantic to study the ocean's carbon cycle. They found that tiny organic particles, known as marine snow, transport carbon from the surface to depths, and this process is critical for understanding Earth's climate.
A new global ocean data assimilation system has been developed to improve the accuracy of sea-surface temperature and sea-level anomaly forecasts. The YHGO platform integrates a fully nonlinear and non-Gaussian data assimilation method with a mass-conserving ocean model, leading to improved performance compared to existing systems.
Scientists at the University of East Anglia used an autonomous underwater vehicle to survey beneath the Dotson Ice Shelf, finding that the shape of the seabed is more important than current speed in influencing warm water circulation. This leads to melting at the underside of the ice shelf, contributing to sea level rise.
Researchers found three major vent areas aligned with active fault zones, controlled by the island's tectonic fabric. The discovery establishes Milos as a natural laboratory for studying hydrothermal activity, volcanism, and tectonics.
New method detects small microplastic concentrations up to 10,000 particles per cubic meter, with drift and sinking behaviors observed. Microplastics reach sea depths via biofouling or neutral buoyancy, affecting marine environment and necessitating urgent countermeasures.
Sixty-million-year-old rock samples have revealed how massive amounts of carbon dioxide are stored in piles of lava rubble on the seafloor. This discovery sheds light on the importance of breccia, a geological sponge for carbon in the long-term carbon cycle.
A modelling study suggests that heat stored in the Southern Ocean could be released, causing a rapid warming of the atmosphere. The ocean acts as a large heat reservoir, mitigating atmospheric warming since the Industrial Revolution.
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.
New research suggests that ocean turbulence and horizontal stirring will dramatically increase in the Arctic and Southern Oceans due to human-induced Global Warming. The study uses ultra-high-resolution simulations to investigate how mesoscale horizontal stirring (MHS) responds to warming, revealing a pronounced future intensification ...
A new study has found that the Southern Ocean releases substantially more carbon dioxide during the dark austral winter than previously thought. The findings suggest that the region plays a more complex and dynamic role in the global carbon cycle, with implications for climate models.
The University of Gothenburg will acquire a new AUV, named Ran II, with improved navigation and emergency response systems. The new vessel will enable researchers to gather unique data on glacier melting and ice dynamics in the Baltic Sea and Antarctica.
The Blue Whale, an 11-meter submersible unmanned vessel, can collect comprehensive water column parameter data while eliminating risks to human life. It is designed to operate in extreme sea states and enhance disaster preparedness through accurate typhoon intensity forecasts and marine condition warnings.
A new study found that land and ocean weathering processes are linked, influencing the amount of carbon stored or released into the atmosphere. The research proposes a continuum approach to studying weathering reactions on both land and in the ocean.
The MiningImpact project is investigating the environmental impacts of deep-sea mining on ocean ecosystems. Scientists are studying biodiversity, genetic connectivity, and ecosystem health to develop indicators and threshold values for harm.
The 2026 Ocean Sciences Meeting will be held in Glasgow, Scotland from February 22-27, 2025. The event will bring together 6,000 scientists, students, and educators to discuss breaking research on the ocean sciences and critical issues affecting a sustainable future for our oceans.
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.
Researchers found that ocean anomalies traveling northward affect the Atlantic Meridional Overturning Circulation in the Nordic Seas, controlling its strength. The study suggests that these anomalies can be monitored using satellite data, providing a cost-effective way to track climate changes.
Researchers led by Francesco Fedele analyzed 27,500 wave records to debunk the conventional explanation of rogue wave formation. Instead, they found that linear focusing and second-order bound nonlinearities are the primary drivers behind these massive waves.
Researchers developed a customized parametric insurance system using Probabilistic Tsunami Risk Assessment (PTRA) to quantify tsunami losses and payouts. The proposed framework reduces overpayment by 60.9% while maintaining risk reduction, potentially saving lives and money.
Researchers will study how ocean currents and nutrients from land influence the health and productivity of MCEs, which support diverse marine life and important fisheries. The project aims to fill critical knowledge gaps and provide science-based solutions for environmental protection and sustainable growth in the gulf region.
Researchers have discovered a sudden rise in surface salinity south of 50° latitude, coinciding with a dramatic loss of sea ice around Antarctica. The findings suggest a dangerous feedback loop where less ice leads to more heat, which leads to even less ice.
A study by University of California, Riverside researchers finds that the Atlantic Meridional Overturning Circulation's slowdown is responsible for the persistent cold water anomaly south of Greenland. This weakening circulation leads to cooler surface waters and fresher salinity, impacting weather patterns across Europe.
Longer winter sea ice duration is associated with a 20% increase in atmospheric CO2 absorption by the Southern Ocean. Sea ice protects the ocean from strong winds, allowing it to absorb more CO2 during winter.
Researchers uncover valuable insights into past climate scenarios and marine ecosystems through ancient sediment cores. The study highlights the need for more data to improve future climate models and transform our understanding of Earth's complex life systems.
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 new study from Caltech finds that the Atlantic meridional overturning circulation, commonly referred to as the AMOC, will weaken by around 18 to 43 percent at the end of the 21st century. This represents a limited decline, rather than substantial weakening as previously predicted, addressing a long-standing uncertainty in climate sci...
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 study reveals that the negative effects of the ozone hole on the Southern Ocean's carbon uptake are reversible, but only if greenhouse gas emissions rapidly decrease. The study found that as the ozone hole heals, its influence on the ocean's carbon sink diminishes, while the influence of greenhouse gas emissions rises.
A new study on natural oil seeps in the deep sea has found that hydrothermal processes mobilize dissolved organic matter, influencing local ecosystems and the global marine carbon cycle. The composition of released water-soluble organic molecules is strongly influenced by temperature and petroleum composition.
PET-based glitter microplastics promote calcium carbonate crystallisation in seawater, altering natural biomineralisation processes in marine organisms. The study's findings suggest that glitter microplastics can degrade rapidly, releasing smaller fragments that are easily ingested by marine life.
Researchers at North Carolina State University have developed a system that actively removes microplastics from water in a single cycle. The microcleaners, made from biodegradable materials, use the Marangoni effect to self-disperse and capture microplastics, which are then collected by skimming.
Researchers have discovered a protein called MdfA that enables bacteria to shut down into dormant spores under extreme conditions. This process allows bacteria to survive in uninhabitable places and evade hospital cleaning, making them potentially deadly superbugs.
Researchers discovered that tetrahedral Co²⁺ is preferentially incorporated into the lattice in early stages of Co(OH)₂ formation. The retention of tetrahedral Co²⁺ is linked to effective OH⁻ concentration, paving the way for optimized synthesis methods and enhanced material properties.
Researchers found a synchronization between geological climate archives and large-scale volcanic eruptions in the Deccan Traps, which may have caused mass extinctions. The study suggests that changes in Earth's orbit around the sun regulate the amount of incoming solar radiation, affecting global climate patterns.
Scientists are studying how microplastics affect microbial communities in ponds, with potential implications for carbon cycling and the global biosphere. Microbes have adapted to plastic surfaces, which could impact aquatic environments.
Researchers on the SONNE310 expedition investigate canyons on active and passive continental slopes in the southwest Pacific. The study aims to identify factors that determine landslide frequency, size, and location, enhancing global risk assessment and protecting coastal areas.
A £4.25m project will investigate 'tipping points' in marine ecosystems, which could have devastating consequences for the UK's fishing industry and global biodiversity. The TiMBER project, led by the University of East Anglia, aims to develop tools to assess risks and predict changes in marine biogeochemistry.
Research team finds that heavy Mg isotopic signatures in volcanic rocks can be explained by partial melting of serpentinite-dominated mélanges. The study proposes a novel model involving diapiric rise and melting of these mélanges, which aligns with geochemical characteristics of arc magmas.
A new study on Enceladus reveals its ocean forms distinct layers that slow material movement, potentially erasing biological signatures of life. This finding has significant implications for the search for life beyond Earth.
The University of Texas at Arlington (UTA) has donated thousands of natural history books and journals to Ecuador's National Biodiversity Institute, expanding its research and education programs. The donation, valued at over 8,570 books, 2,000 journals, and 500 articles, will support the work of biodiversity specialists, students, and ...
A new study by scientists at the University of Rochester suggests that atmospheric wind has a surprising impact on ocean eddies, which are circular currents of water about 100 kilometers wide. The research reveals that wind can both energize and dampen eddies, depending on their spin direction.
A team of researchers from Universidad Carlos III de Madrid created an innovative technique to produce regular oil lenses of uniform size on water surfaces. This discovery can help study the behavior of oily substances on water surfaces, with applications in oil spill mitigation and food industries.
A new study from DTU National Food Institute finds that temperature and light intensity play a crucial role in the yield of various nutrients produced by the microalga Nannochloropsis oceanica. The research suggests a two-stage cultivation process to optimize nutrient production, paving the way for sustainable food production.
A recent University of Washington study found that a slower increase in atmospheric carbon dioxide levels has less impact on the Atlantic Ocean's circulation. The research, published in PNAS, suggests that this slowdown allows the ocean system more time to adapt to rising CO2 levels and mitigates its effects.
Researchers used Re–Os dating to uncover the timing of Japan's geological history, revealing key insights into the region's evolution. The study focused on Besshi-type VMS deposits, which provided precise markers for the timing of subduction and ridge subduction beneath Japanese Islands.
Researchers discovered a diversity of novel hydrothermal vent styles on the Arctic Ocean floor, including metal-poor hydrogen- and methane-enriched fluids. This expansion has significant implications for understanding the origin of these vents and assessing their global-scale impact on the ocean and Earth system.
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.