Articles tagged with Tides
Researchers developed a new technique to estimate tides at the scale of individual beaches, revealing significant variations between beaches. This approach uses satellite images of shorelines to measure tidal patterns, enabling more accurate predictions of tide levels and coastal flooding risk.
Researchers challenged the double water bulge model by analyzing tidal data from satellite observations. They found that only 56.84% of locations experienced low tides and 43.16% experienced high tides, contradicting the physical existence of two water bulges.
New analysis reveals Shanghai and China's coastal waters are highly susceptible to sea level rise, exacerbated by local land subsidence, river water discharge, and shifting marine currents. The study's findings highlight the urgent need for adaptive measures to mitigate these impacts.
Researchers from the University of Surrey found that combining wind turbines with wave, solar, and tidal devices on shared platforms generates more reliable power and reduces construction costs. The study identified hybrid offshore renewable energy harvest systems as crucial for meeting ambitious climate targets.
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 USTC research team monitored seismic wave speeds in the Anninghe fault zone, finding distinct diurnal and semi-diurnal cycles that correlated with tidal forces. These periodic changes reflect the impact of tidal forces on the internal stress field of the fault zone, offering a new method for detecting earthquake precursors.
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 by MIT scientists finds that extreme storm tides will increase tenfold for Bangladesh, with what was once a 100-year event now striking every 10 years by the end of the century. The country's densely populated coastal regions are expected to experience more frequent and severe flooding events as a result.
This study reveals clear periodic patterns in seismic velocity changes on daily, semi-daily, and monthly timescales, driven by tidal forces. The research provides new insights into how tidal forces impact fault systems, offering valuable information for understanding fault dynamics and seismic hazards.
Scientists at UMass Amherst accurately quantify coastal carbon storage using satellites, revealing 10 million cars' worth of carbon stored in top meter of soil and an additional 15,000-worth each year. The results are crucial for a resilient, low-carbon future, highlighting the potential for salt marshes to mitigate climate change.
A new study reveals that glacier speed varies on a daily basis due to changes in air temperature, rainfall, and tides. The research found acceleration events coinciding with high temperatures or heavy rainfall, highlighting the complex interactions between environmental factors and glacial dynamics.
The Atlantic Marine Energy Center (AMEC) will develop new research projects, infrastructure, and educational programs using the funding. Lehigh University will lead two research projects focused on tidal turbine blades and real-time stable marine energy microgrid power management.
Astronomers at Cornell University studied Io's volcanoes to understand tidal heating and its role in planetary formation. They found active volcanoes at the poles, which may regulate tidal heating and provide insight into the moon's internal structure.
Research shows that methane fluxes in the North Sea vary with tidal pressure, with emissions potentially three times higher or lower depending on the tide. This affects climate science's understanding of methane emission from the seafloor.
A new model developed by researchers at the University of São Paulo combines physical parameters and machine learning to predict storm tides. The model uses physics-informed machine learning, which harmonizes physical models with measured data to produce more precise forecasts.
A new study found that magnesium levels in sandhoppers increase during cold weather, slowing their activity. In deeper sleep, magnesium levels can more than double, putting the sandhopper into a torpid state and allowing it to conserve energy.
Researchers at the University of Bonn improved 3D ocean circulation models using supercomputing resources to analyze ocean tide changes and their impact on coastal regions. The study found that a warming ocean surface enhances baroclinic tides, leading to significant energy transfer.
A research team from the University of Science and Technology of China studied a rare tidal disruption event (TDE) with an unprecedented early optical bump. The 'bump' lasted nearly a month and was separated by two months from the main peak, deviating from traditional TDE light curves.
Researchers found that sunny day flooding in coastal areas can lead to elevated levels of fecal bacteria in waterways. The study suggests policymakers and public health officials should be aware of potential risks associated with tidal flooding.
A study by researchers from the University of Gothenburg found that shy sea anemones can outlast bold ones during extreme heatwaves due to their slower metabolism. This survival strategy may be beneficial for other cold-blooded marine species exposed to rapid temperature changes.
Scientists highlight tidal wetlands beyond mangroves, saltmarshes and seagrass as Blue Carbon ecosystems, offering biodiversity conservation and carbon sequestration benefits.
A perfect storm of calm weather and limited tidal movement trapped coral eggs in Bills Bay, leading to a massive die-off. However, research by Curtin University shows that some corals were able to survive and that the area has a history of recovering from similar events.
A collaborative research project, 'Ecosystem on the Edge,' aims to understand how coastal marsh plants and microbes interact in a constantly pulsating environment. The four-year study at Plum Island Ecosystems Long Term Ecological Research site will investigate controls and impacts of iron and sulfur cycling.
A new study estimates that climate change and coastal land usage will result in significant shrinkage of coral habitats, tidal marshes, and mangroves. In contrast, macroalgal beds are expected to remain stable, while seagrass meadows may expand due to increased sunlight penetration.
Researchers investigate geologic features on icy moons, revealing mechanisms behind strike-slip faults. Studies on Titan and Ganymede provide insights into potential environments conducive for life emergence.
Research reveals the grounding line of the Ronne Ice Shelf can shift up to 15 km with changing tides, controlling ice stability and potentially accelerating ice melt. This finding highlights the need for improved observations and modeling of tidal processes to predict Antarctica's response to climate change.
A new study finds that most coastal communities will experience 100-year floods annually by the end of the century, even under a moderate carbon emission scenario. Rising sea levels will lead to an increase in extreme flood events worldwide.
For over a billion years, the sun's atmospheric tide countered the moon's gravitational pull, keeping Earth's rotational rate steady and day length at 19.5 hours. This balance was disrupted by climate change, resulting in our current 24-hour day stretching to over 60 hours if not for the pause.
A new study reveals that Earth's day length may have stalled at 19 hours between 2-1 billion years ago due to tidal resonance caused by the Moon and Sun's opposing forces. This flatlined period could have allowed for a stable atmosphere, enabling photosynthetic bacteria to produce more oxygen each day.
Researchers at UMass Chan Medical School identified the Bmal1 gene as a crucial regulator of circatidal behavior in P. hawaiensis, establishing a molecular link between circadian and circatidal clocks. The study provides new insights into the genetics underlying circatidal rhythms.
Faults in Ridgecrest, California were sensitive to solid earth tidal stresses before the July 2019 earthquake sequence. Researchers found a strong signal of tidal modulation after 2018, but it's unclear if it triggered the earthquake. The study suggests that tidal stresses may be an indicator of upcoming earthquakes.
A team of researchers from South Africa has discovered exceptional trace fossils that provide insight into the locomotion of ancient giant amphibians. The fossils, found on a rock surface once part of a tidal flat or lagoon, suggest these animals propelled themselves through water with continuous side-to-side tail motions.
A new study predicts devastating socioeconomic impacts of future extreme coastal flooding on developing nations caused by climate change. Without adaptation measures, the number of people affected could increase from 34 million in 2015 to 246 million by 2100, with expected annual damage costing over five percent of national GDP.
The prevalence of methamphetamine-associated heart failure is rising worldwide, affecting a wide range of socio-economic and racial groups. Meth users are more likely to develop severe disease, with longer hospital stays and readmissions, compared to non-users.
A team led by University of Maryland astronomer Igor Andreoni discovered a bright optical flare caused by a dying star's encounter with a supermassive black hole. The event, AT2022cmc, is extremely rare and was found using a novel data pipeline that analyzed the Zwicky Transient Facility survey.
A team of researchers has identified three new turtle nesting sites in the central Red Sea, which could inform efforts to protect endangered sea turtles. The discovery was made using drone surveillance and sediment samples to identify optimal nesting conditions.
Researchers from the University of Bonn found that dwarf galaxies in one of Earth's nearest galaxy clusters show signs of disturbance without dark matter halos. The study's results contradict previous models, suggesting an alternative gravity theory might be more accurate.
Researchers recover data from sensors swept away by massive underwater avalanche in Congo Canyon, providing new insights into sediment flow and seabed cable breakages. The study reveals the hazards of powerful turbidity currents and their impact on global communications.
A new study found that the 2021 heat wave caused widespread death among shellfish due to a combination of low tides, high air temperatures, and location. The research team analyzed hundreds of field observations and found that some species fared better than others in terms of survival.
A new study reveals that tidal flats in the southeastern US are under pressure from urbanization, leading to erosion and loss of these critical ecosystem guardians. The research highlights the need for sustainable management plans to mitigate the impacts of urban expansion on coastal environments.
Researchers tracked 60 stingrays for a year, finding they prefer shallow waters but move into deeper lagoons during extreme tides and temperatures. Climate change may alter their preferred habitat, putting them at risk from sharks.
A study has shown that wind variations over the southern Red Sea are the main drivers of sea-level extremes, driving levels up and down depending on wind direction. This understanding is crucial for coastal planning and management to mitigate the impact of storm surges and coastal erosion.
Researchers at KAUST used drones to track dye plumes in coastal waters, providing insights into the dispersion of materials in the water column and along the coast. The study demonstrated the potential of unmanned aerial vehicles for monitoring time-sensitive events and capturing rapidly developing processes.
Astrophysicists have calculated the original mass and size of a dwarf galaxy torn apart in a collision with the Milky Way billions of years ago. The reconstructed galaxy's stars now stream through the Milky Way, carrying information about its gravitational field.
Researchers found that local gravitational tides modulate the cyclical behavior of organisms, even in the absence of other rhythmic influences. The study questions the validity of free-run experiments and highlights the importance of considering gravitational oscillations in biological research.
Researchers found that tides play a crucial role in modulating groundwater discharge and coastal salinity, especially during low rainfall periods. Heavy rains and tropical cyclones also impact submarine groundwater discharge, with significant effects on coastal ecosystems and aquaculture.
A 1.5°C temperature increase affects algae and animal species living on UK coastlines, with significant changes in species abundance and breeding patterns. The study highlights the importance of considering local temperature variations when predicting climate change impacts.
Numerical study investigates dynamics of internal solitary waves (ISWs) in southern Andaman Sea, revealing their generation via oscillating semi-diurnal tidal flow. Sensitivity runs show semidiurnal tides generate stronger ISWs than diurnal tides, with mixed forcing having little effect
A recent study suggests that strike-slip faulting is an active deformation mechanism on Titan's surface, driven by diurnal tidal stresses and pore fluid pressures. The researchers found that shallow faults near the equator are optimally oriented for potential failure, which could facilitate material transport and affect habitability.
A new study predicts extreme sea levels will become 100 times more frequent worldwide, with an annual occurrence by the end of the century. The research, led by Claudia Tebaldi, suggests rising temperatures will have a significant impact on coastal regions, particularly in the tropics and lower latitudes.
Lauren Ross aims to better understand the mixing process in complex estuaries like the Penobscot River Estuary, which affects ecosystems and aquaculture. She will use on-site data and numerical model simulations to quantify the mixing processes.
A team of astronomers has made detailed observations of a large tidal flow around the Sombrero galaxy, revealing its strange morphology and shedding light on its possible merger history. The study's findings suggest that the galaxy's unusual shape may be due to cannibalism by a satellite dwarf galaxy.
A study led by the University of Hawaii at Manoa found that US Pacific and Gulf of Mexico coastlines will experience rapid increases in high-tide flooding days, with extreme months also emerging
Researchers found that coastal overtopping is set to increase exponentially by 2050, with a 50-fold increase possible under high emission scenarios. Global warming will exacerbate flooding risks in tropical areas and other hotspots, necessitating adaptation measures.
A massive flock of over 20,000 whimbrel has been discovered on Deveaux Bank in South Carolina, marking the world's largest known night roost for the declining shorebird species. The discovery provides critical hope for protecting this rare bird and highlights the importance of coastal habitat conservation.
Researchers observed a supermassive black hole's accretion cycle, finding properties similar to stellar-mass black holes. The study suggests that accretion is independent of size, allowing for the capture of short timescale events like tidal disruption events.
Hilary Martens receives $443,000 grant to investigate the structure of the Earth's interior using GPS observations of ocean tides. The project aims to improve understanding of plate tectonics and surface hazards like earthquakes and volcanoes.
Researchers have isolated multidrug-resistant Candida auris from a sandy beach and tidal swamp, revealing the fungus thrives in natural environments. Whole genome sequencing shows close relation to pathogenic strains in Southeast Asia, suggesting a possible connection between human activity and its emergence.
A new study found that increased tidal ranges due to human alterations cause more nuisance flooding days in many coastal locations. Coastal nuisance flooding causes problems such as flooded roads and overloaded stormwater systems, and researchers urge caution in altering sensitive estuarine systems.
Researchers linked a high-energy neutrino to an object outside our galaxy, tracing it back to a black hole tearing apart a star in a rare cataclysmic occurrence called a tidal disruption event. The findings provide insights into how these phenomena work and challenge previous expectations about when and how neutrinos are produced.