Articles tagged with Ocean Waves
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.
Mechanism modeling can improve the accuracy of air-sea fluxes, which are crucial for predicting marine atmospheric boundary layer processes. By accounting for the impact of waves, currents, and wind coupled together, models can better represent the interactions between the atmosphere and ocean.
The MIT team has created a submerged system that harnesses the vibration of 'piezoelectric' materials to generate power, transmit data, and receive signals without batteries. This technology enables long-term underwater sensing for climate change research, marine life tracking, and potential applications on other planets.
Astronomers observed blue supergiants for the first time using data from NASA space telescopes, discovering wave patterns on their surface that reveal properties of these stars. The discoveries confirm two types of waves, providing new prospects for studying massive stars.
A team of scientists at GEOMAR Helmholtz Centre of Ocean Research Kiel used simulation techniques to analyze the drift of MH370 debris and propose new strategies for tracking marine objects. The study found that Stokes drift, caused by surface waves, plays a crucial role in determining the final position of drifting objects.
Tropical Cyclone Joaninha is affecting Mauritius, with NASA tracking its movement through the Southern Indian Ocean. The storm is causing strong southerly winds and heavy swells, prompting warnings from the Mauritius Meteorological Services.
Haiying Huang, a UTA professor, has received $900k grants to monitor ship structural health and detect early material degradation. Her research focuses on using optical fibers as waveguides for lightweight, effective, and easy-to-maintain sensor networks.
Researchers achieved nearly double the previous record of 4.25 GeV by accelerating electrons to 7.8 GeV using a novel technique that combines laser heating and plasma channeling. The breakthrough enables more compact and affordable particle acceleration for high-energy machines.
Researchers at Florida State University have found that abrupt variations in the seafloor can cause massive destruction from rogue or freak waves. The study, published in Physical Review Fluids, reveals that these extreme events follow a gamma distribution, a mathematics function that defies traditional bell curve patterns.
Researchers from UC3M and Imperial College London have developed a new theory that explains the behavior of liquids and gases at the microscopic scale. The study reveals that the arrangement of atoms exhibits certain mathematical properties called resonances, which provide a consistent description of liquid-gas fluctuations.
Researchers created a graphene-based terahertz detector that detects waves, enabling faster Wi-Fi and new medical diagnostic methods. The detector uses plasmons to detect terahertz radiation, overcoming the issue of wave resonance.
Researchers at Argonne National Laboratory have created twisted electromagnetic waves using magnetic defects, allowing for precise imaging of material properties. This breakthrough could lead to the development of new devices and a deeper understanding of chiral materials.
New research suggests that rising global sea levels and high-energy wave events could actually build, rather than destroy, coral reef islands like the Maldives. This is possible if the coral reef remains healthy to provide building material, but threatens island infrastructure with devastating consequences.
A team of researchers found that land area in Hawai'i vulnerable to future sea level rise may be double previous estimates. The 'bathtub' model underestimates the full extent of potential damage due to sea level rise, particularly on Hawaii's high-energy coasts.
Researchers found that thin liquid and insoluble films on the surface of water enhance horizontal eddy currents by interacting with surface waves. This enhances vertical vortex flows near the surface, which affects surface wave amplitude. The study's results have potential applications in materials science, geophysics, and ocean analysis.
Researchers have uncovered tantalizing clues to the origins of persistent gravity waves in Antarctica, suggesting two possible sources: lower-level waves breaking and re-exciting new waves, or polar vortex winds. Studying these waves is crucial for improving climate and weather models.
Researchers have discovered a new fundamental feature of brain oscillations: they actually move rhythmically across the brain, reflecting patterns of neuronal activity that propagate across the cortex. This movement is important for memory and cognition, and may provide a new type of signal for brain-computer interfaces.
A recent study has identified certain types of bacteria and viruses that are readily ejected into the atmosphere when waves break, while others are less likely to be transported. This discovery sheds new light on the potential health risks associated with breathing in ocean microbes and other biological material.
An international team of scientists has discovered planetary waves of vorticity on and inside the Sun similar to those that significantly influence weather on Earth. These solar Rossby waves are gigantic in size and contribute half of the Sun's large-scale kinetic energy, with wavelengths comparable to the solar radius.
New study reveals that ultra-slow waves are not just noise in the brain, but a fundamental process that coordinates complex brain activity. The waves enhance electrical activity in areas and persist even under anesthesia, suggesting they may be linked to consciousness.
Researchers at MIT and Australian National University found that seismic waves are essentially blind to water in the Earth's upper mantle. The team's experiments showed that even tiny amounts of water have no effect on seismic wave speeds, contradicting previous assumptions.
A KAUST team has developed a device that can tap into the constant energy emitted by Earth's surfaces and atmosphere, as well as waste heat from industrial processes. The 'rectenna' design uses quantum tunneling to convert infrared waves into useful electricity.
Researchers at FAU successfully developed a new technique to generate an optical field that can be influenced with great precision, enabling light and electrons to coincide within 'attoseconds'. This allows for high-energy acceleration of electrons, promising applications in materials science, biology, and medicine.
The MIPT Center for Molecular Electronics developed a seismic station that can reveal underground reservoir structures at great depths. The device has a wider bandwidth than existing seismic stations, allowing it to pick up low-frequency waves and detect potential hydrocarbon reserves more effectively.
Researchers used a Wave Glider to collect data on the Southern Ocean's mixing patterns, which are key to understanding climate change. The autonomous platform successfully traversed the turbulent Drake Passage, gathering insights into ocean physics and heat energy mixing.
Researchers have developed high-tech yarns that can generate electricity when stretched or twisted, opening up new possibilities for self-powered wearable devices and energy harvesting from ocean waves. The twistron yarns, constructed from carbon nanotubes, can convert mechanical energy into electrical power.
Researchers have developed a twistron harvester that harnesses energy from ocean waves, achieving a voltage of 46 mV and average output power of 1.79 mW. The device also acts as a motion sensor, demonstrating its potential for self-powered devices and natural energy harvesting.
Simulations show that a temperature gradient can displace nanoparticles on graphene membranes, with the force acting like a ballistic wave. Researchers discovered a new phenomenon called thermophoresis ballistic, where vertical thermal oscillations push objects horizontally.
Scientists have discovered evidence of a type of seismic wave in the Sun using data from NASA's SOHO. The waves, called g-modes, reveal that the solar core is rotating approximately once every week, nearly four times faster than its surface.
Researchers at NASA's Goddard Space Flight Center are analyzing the eerie sounds made by plasma waves in space, including whistler-mode waves and chorus waves. By understanding how these waves interact with particles, scientists can improve predictions of space weather and protect satellites and telecommunications signals.
Researchers in Erlangen and Jena have achieved high-precision measurement of the wave characteristics of focused, ultra-short light pulses. This will enable targeted influence on electrons and chemical reactions.
New research on Titan's lakes reveals that most waves reach only about 1 centimeter high, making it a serene environment suitable for safe landing of future probes. The study suggests that the winds are likely low, with patches of smooth and rough surfaces detected.
Scripps researcher Nick Pizzo found the exact location on a wave where a surfer gains maximum speed, enabling better forecasting of weather and climate. The study also sheds light on the energy transfer between waves and the atmosphere.
Tropical Storm Bret weakened into a tropical wave in the Caribbean Sea on June 20, with its center near 12.0 degrees north latitude and 67.3 degrees west longitude. The remnants of the storm were moving west-northwest at 22mph, associated with isolated moderate precipitation.
Researchers have discovered atmospheric gravity waves radiating from hurricanes, which could be used to monitor the storms' intensity and location from hundreds of miles away. These subtle waves can reveal processes occurring in the eyewall of a hurricane that are obscured by thick clouds, leading to better forecasts.
A team of scientists found a massive wave of hot gas in the Perseus galaxy cluster using Chandra X-ray Observatory data and computer simulations. The wave is thought to have formed billions of years ago after a small galaxy cluster grazed Perseus, causing its gas supply to slosh around an enormous volume.
Rice University physicists have created a model system for studying rogue ocean waves by precisely controlling the quantum behavior of an ultracold atomic gas. They found that under certain conditions, the number of solitons remains unchanged, suggesting that the soliton train is born with stable characteristics.
A recent study found that a specific wave pattern in the upper atmosphere, called wavenumber-5, is associated with California's droughts and floods. The wave pattern emerges during the northern winter and can lead to persistent extreme events like heat waves, droughts, and floods. Scientists hope that this new understanding of wavenumb...
Researchers found that the Atlantic Multidecadal Oscillation significantly modulates the Pacific SST-EAWM relationship, leading to warmer winters over East Asia when ENSO-like mode and AMO are in phase. The study suggests considering AMO phase in predicting EAWM-related climate based on ENSO variability.
A team of scientists has discovered large-scale planetary waves on the Sun, which may influence space weather and offer a new source of predictability. The discovery uses data from multiple satellites to identify and track coronal bright points, revealing bands of magnetized activity that propagate slowly across the Sun.
A new study in Paleoceanography reveals that the last time Earth was as warm as it is today, a melting Greenland Ice Sheet circulated cold freshwater in the Atlantic Ocean as far south as Bermuda. This circulation elevated sea levels and altered ocean climate and ecosystems.
A new study led by Colorado State University suggests that a shift in the Southern Annular Mode, similar to El Nino, can lead to stronger ocean waves and the collapse of ice shelves. The research found that reduced sea ice cover allows ocean waves to directly impact ice shelves, enhancing surface melting and weakening ice shelves.
Researchers discovered that breaking waves across a rip channel can close the channel and stop currents from traveling far offshore. However, when waves cease to break, rip currents flow far offshore, posing a greater hazard to swimmers.
A researcher from Aalto University has created a controlled rogue wave in realistic oceanic conditions, shedding light on the phenomenon of extreme ocean waves. This breakthrough enables the design of safer ships and offshore rigs by simulating realistic rogue waves in laboratory environments.
Post-Tropical Storm Hermine's center shifts east-southeast of Cape Cod, MA, as it moves into open North Atlantic waters. The storm's maximum sustained winds decrease to near 50 mph with higher gusts.
Researchers detected S wave microseisms, a rare phenomenon, triggered by a distant North Atlantic storm. The discovery provides new insights into the Earth's internal structure and may contribute to more accurate detection of earthquakes and oceanic storms.
Researchers from OIST Graduate University have developed a classical model to describe the phenomenon of strong coupling, challenging previous thoughts that it was a quantum effect. Strong coupling occurs when light and matter interact strongly, affecting both parties equally.
Researchers developed a new technique using ocean waves and seismic vibrations to monitor ice sheet volume changes, which may help scientists identify vulnerable regions. The technique has been shown to have high precision and can be used continuously, unlike traditional methods that only gather data several times a year.
Scientists have found that pieces of the underside of the North American Plate are peeling off, sinking into the mantle, and causing earthquakes in the southeastern US. This process is likely to produce more earthquakes in the future due to unbalanced stresses in the plate.
A new computer model has been developed to design safer versions of fast ships used in search and rescue operations. The model produces accurate animations and simulations that can show how sea waves affect these craft, highlighting the importance of accurate predictions of pressure forces.
Researchers at Berkeley Lab will develop compact free electron lasers for affordable x-ray sources, overcoming current limitations of miles-long facilities costing hundreds of millions of dollars. The project aims to produce portable and high-contrast x-ray imaging with a smaller footprint and lower cost.
Researchers at RMIT University have created a new class of sound wave that can be used to manipulate fragile stem cells without causing damage. The 'surface reflected bulk waves' are gentle enough for biomedical devices and open up new possibilities in stem cell treatment.
Lin has published 26 papers on using ambient seismic noise to reconstruct internal structures of the Earth and map out structures in the crust and upper mantle with unprecedented accuracy. His method has been used to create detailed images of the Earth's inner core and a vast magma plumbing system below Yellowstone National Park.
Scientists have observed unusual seismic wave speeds that suggest the frozen olivine structure within the flat-slab slab has vanished and been replaced by a new unexpected structure. This implies that slabs are weak enough to deform internally in the upper mantle over time.