Articles tagged with Ocean Waves
Researchers use seismic technique to detect boundary between old and new lithosphere beneath the North American continent. The study reveals a layer cake of ancient rock on top of newer material, challenging traditional theories on continental formation.
Researchers will deploy NSF/NCAR Gulfstream V research aircraft to gather data on tropical storms that may become hurricanes. By understanding these storms' formation, scientists can help the National Hurricane Center attain five- or seven-day hurricane forecasts.
Scientists launch Waves, Aerosols and Gas Exchange Study (WAGES) to investigate air-sea gas exchange and its impact on climate. The two-year project uses the Royal Research Ship James Clark Ross to collect continuous measurements of carbon dioxide, sea-spray aerosol, heat, moisture, and momentum.
NASA satellites track Tropical Storm Omais in the Philippine Sea with maximum sustained winds near 46mph. The storm is expected to continue moving northwest and dissipate by the weekend.
Researchers at MIT have discovered a new phenomenon that causes powerful waves of energy to shoot through carbon nanotubes, enabling the production of electricity. The discovery has led to the creation of a system that produces energy about 100 times greater than an equivalent weight of lithium-ion battery.
The seventeenth tropical depression formed in the South Pacific Ocean on February 21 and strengthened into Tropical Storm 17P by February 22. TS 17P has created 15 foot-high waves in open waters and is expected to track through the region, potentially impacting some land areas with gale winds.
Scientists discover that tidal forces may have triggered the devastating Sumatra earthquake of 2004 and that rising levels of atmospheric carbon dioxide are leading to ocean-basin-wide acidification. A new catalog of terrestrial gamma ray flashes has also been created, providing insights into these mysterious bursts of energy.
Using a stacked arrangement, researchers observed single photons traveling through dielectric materials with significantly reduced transit times. This phenomenon can be explained by the wave properties of light and its behavior when interacting with specific material layers.
Researchers have observed dynamic upwelling in the underlying mantle beneath a spreading center, leading to new crust formation. This finding resolves a long-standing debate regarding the relative importance of passive and dynamic upwelling in oceanic crust creation.
Typhoon Melor is affecting southern Japan with gusty winds, heavy rains, and high waves, while Tropical Storm Parma continues to rain on Luzon in the northern Philippines. The storms are expected to bring soaking rains, dangerous surf, and gusty winds to two different locations.
Researchers at the University of Warwick have discovered a new type of turbulence in the solar wind that enables plasma particles to exchange energy without collisions. This finding has significant implications for fusion power development and could provide insights into energy dissipation in solar system-sized plasmas.
The GOES-14 satellite has provided its first visible full disk image of Earth, showcasing little activity in the Atlantic Ocean and two tropical waves in the East Pacific. The satellite's Imager instrument is taking high-resolution images at a 1 km resolution from an altitude of 36,000 km above Earth's surface.
Two areas of thunderstorms in the Caribbean are moving into the eastern Atlantic and southeastern Bahamas, but a low chance of development exists. The National Hurricane Center reports less than 30 percent chance of tropical formation within the next 48 hours.
The newly-laid MARS cable enables the use of MOBB's broadband seismometer data in real-time with other land-based stations to determine earthquake locations and mechanisms. This improvement aims to enhance understanding of the San Andreas fault system and provide early warnings for ground shaking.
Engineers at UCLA have successfully harnessed 'rogue' laser waves to produce brighter, more stable white light sources. The new technology reduces fluctuations by at least 90% and decreases energy needed by 25%. This breakthrough could pave the way for better clocks, faster cameras, and more powerful radar and communications technologies.
MIT researchers, led by Chiang Mei, have developed a numerical simulation model that predicts wave forces on devices and motion of the device. The research aims to optimize energy capture and provide data for efficient conversion to electrical energy. The pilot-scale device will be integrated into a new breakwater in Portugal.
A new method of generating high-power signals at frequencies up to 1.16 THz has been proposed, potentially replacing X-rays for medical imaging and security applications. The technique uses nonlinear constructive interference on an ordinary silicon chip.
Researchers have discovered that tiny earth tremors caused by wind-driven ocean waves can track extreme storms. Microseism signals show up as oscillations of Earth's surface and increase in amplitude with storm intensity, offering a unique way to monitor storm intensities across seasons and geographical locations.
The crew will make groundbreaking measurements to explain how huge fluxes of climate-affecting gases move between atmosphere and sea. The Southern Ocean, comprising 30% of global seas, is a source of great uncertainty in the global system.
Researchers at Duke University have successfully created a three-dimensional sound cloak in theory, allowing sound waves to travel around it undistorted. This breakthrough could lead to improved acoustics in concert halls and hidden submarines from sonar detection.
Climate researchers predict salt marshes in Venice Lagoon may not survive future climate changes due to increased sea-level rise. Meanwhile, scientists have observed high-speed streams of charged particles called sprites, which blaze at incredible brightness and brief duration. The Amazon rainforest also emits large amounts of methane,...
Researchers at Rice University's Laboratory for Nanophotonics have created nanoeggs, asymmetric particles that focus light on small regions of space. These nanoeggs can be tuned to interact with more wavelengths of light than their nanoshell cousins, making them suitable for applications in molecular imaging and medical diagnostics.
Researchers at Rice University have made an unexpected plasmonic discovery, finding that terahertz waves slow down as they pass through smaller metal wires. This phenomenon has significant implications for the development of new chemical sensors and endoscopes.
Researchers have discovered a new property of the very deep Earth, which challenges the prevailing thought that ultralow velocity zones contain liquid. The study found that iron-rich post-perosvkite can explain these zones' properties, suggesting an alternative explanation to partial melting.
A new system can predict the total magnitude of an earthquake within seconds, allowing for tens of seconds of warning. This allows for critical actions such as shutting down power grids and evacuating buildings, potentially saving lives and reducing damage.
Researchers used reflected seismic waves to image the structure of the lower crust, finding evidence of multiple magma sills forming at different levels. The study suggests that the base of the oceanic crust is formed from several smaller sources of magma rather than a single large pool.
Researchers studied the La Jolla submarine canyon's effect on ocean waves, finding that up to 60% of wave energy was reflected back into the open ocean. Another study tracked sulfur hexafluoride through the Denmark Strait to understand its role in driving global climate.
Researchers successfully amplify a phenomenon predicted by computer simulations, challenging the idea that equilibrium states are impossible in nonlinear systems. The discovery also sheds new light on the Young's modulus of materials.
A study published in the Royal Society journal found that chimpanzees' tolerance for inequity increases with their social closeness, mirroring human responses based on relationship quality. This suggests a link between social connections and the sense of fairness in non-human primates.
The study combined three computer models to investigate the effect of surface waves and wind on hurricane dynamics. The team found a new characterization of the effect of surface waves on air-sea momentum under hurricane wind forcing, which is necessary for accurate predictions of track and intensity.
Researchers use joint ESA/NASA satellite data to form two rival theories on 'coronal heating'. The strong magnetic field is believed to be the culprit behind this phenomenon. Sophisticated computer simulations and observations from SOHO provide crucial evidence for these explanations.
Researchers develop a new Coupled Wave-Wind model to estimate hurricane speed and intensity, incorporating surface breaking waves. The improved model aims to enhance forecast skills and mitigate natural hazards caused by hurricanes.
The African monsoon has two distinct seasons: a late spring season strongly influenced by sea surface temperatures near the Gulf of Guinea, and a later summer season driven by African Easterly Waves. The waves play a major role in this summer season monsoon rainfall.
Researchers investigate how La Jolla and Scripps Canyons near San Diego impact waves, currents, and beaches. The study uses a multidisciplinary approach with sensors, aircraft, and autonomous underwater vehicles to gather data on the dynamic nearshore environment.
A team of UC Berkeley scientists resolves a long-standing puzzle in earth science by clarifying the depth of the continental lithosphere. By re-examining earthquake-generated seismic waves, they determine that the boundary between the lithosphere and asthenosphere lies at 200-250 kilometers.
Scientists discovered a freshening trend in the Labrador Sea and found that mixing of warm and cool waters may prevent El Nino. Additionally, researchers speculated about the cause of high Arctic ozone loss and suggested Martian methane could be an indicator of subsurface life.
Scientists analyzed 40 years of daily weather data to understand the NAO's two-week cycle and its effects on European winters. They found that positive NAO events lead to milder winters, while negative events bring colder temperatures and more precipitation.
Large planetary waves in the atmosphere led to a smaller Antarctic ozone hole in 2002. However, scientists emphasize that these weather patterns do not indicate the ozone layer is recovering and may return to previous sizes next year.
The MIT model provides predictive capabilities for understanding defect nucleation and growth, crucial for nanotechnology. It explains how defects like cracks or dislocations develop from waves in four stages, providing a key finding for materials science.
Researchers Deane and Stokes developed a new depiction of bubble sizes and creation processes using acoustical and optical observations. They found that bubble size distribution follows two distinct mechanisms, one for small and large bubbles.
Yuri Lvov, a Rensselaer Polytechnic Institute faculty member, has been honored with two prestigious awards for his outstanding research in weak turbulence theory and deep internal ocean waves. His work aims to improve weather prediction accuracy and semiconductor laser efficiency.
Electrons accelerated by supernova shock waves can achieve speeds approaching light speed, according to a new study. The research uses computer simulations to investigate the behavior of electrons in magnetic fields and oscillating electric fields, suggesting a novel method for producing high-energy charged particles.
Scientists analyzed the physical response of the Sea of Galilee to external forcing and found intense mixing occurred closest to shores, which could improve ocean forecasts. This understanding is crucial for predicting currents, temperatures, and other oceanic issues like fish development.
The SHOWEX experiment aims to better predict wave formation and severity, improving navigation safety at sea and weather forecasting. Researchers will use a range of instruments, including aircraft, craft, buoys, and subsurface sensors, to study wave components and their interactions.