Articles tagged with Geophysics
A new study from the University of Texas Institute for Geophysics suggests that Mars' molten core could explain its unusual magnetic field. Researchers used computer simulations to model a fully liquid core and found that it could produce a one-sided magnetic field, matching the imprint seen today.
A new deep learning-based workflow automatically detects and picks teleseismic phases with high efficiency and accuracy. This approach enables seismologists to extract more meaningful data and better understand the physics and dynamics deep inside the Earth.
Scientists precisely dated the formation of the Moon's largest impact crater, the South Pole-Aitken Basin, to 4.25 billion years ago using Chang'e-6 samples. The discovery provides critical insights into the early history of the Moon and the Solar System.
A recent PNAS study suggested Mars has a significant amount of liquid water in its mid-crust, but LASP Senior Research Scientist Bruce Jakosky challenges this conclusion. Using InSight mission data, the team found that the presence of water is not required by the data.
Researchers at Stanford University used machine learning to analyze high-resolution remote-sensing data of ice movements in Antarctica, gaining new insights into the fundamental physics governing the large-scale movements of the Antarctic ice sheet. The study reveals that most of the ice shelf is anisotropic, with different physical pr...
The Global Physics Summit will feature nearly 1,200 sessions and 14,000 presentations on various topics, including astrophysics, climate science, medicine, and quantum information. Registered journalists and public information officers will receive daily emails with meeting information.
A new research infrastructure called SAFAtor aims to close the gap in ocean data by collecting real-time pressure, temperature, and seismic data from deep-sea telecommunications cables. The project will deploy sensor technology along an undersea cable to monitor climate and geological hazards.
The EZIE mission will use a new measurement technique to study the electrojets, which can create large magnetic disturbances and power outages. By mapping the electrojets' structure and evolution, scientists hope to improve predictions of hazardous space weather.
Researchers will use airborne GPR and ground-based TEM to collect rich geophysical data, estimating carbon storage and gas emissions in peatlands across a latitudinal gradient. The project aims to reduce uncertainty in these predictions and provide valuable information on how to better protect carbon stocks.
Researchers used seismic noise data to track groundwater storage changes in the Greater Los Angeles region. The study found that only 25% of groundwater lost over two decades was replenished by 2023 storms, highlighting substantial long-term depletion and slow recovery of deep aquifers.
Discounted hotel rates available at select hotels near the Anaheim Convention Center. The Global Physics Summit will feature nearly 14,000 individual presentations on new research in various fields.
A global program called TIMES aims to synchronize age models for geological climate records, enabling the study of past warm climate stages and their impact on future climate pathways. The project is crucial for understanding the Earth's climate dynamics and obtaining reliable information about past climate events.
The EU-funded ForMovFluid project aims to understand the origin of critical raw materials, essential for renewable technologies and energy transition. By combining laboratory techniques and field work in four countries, researchers will increase knowledge on fluid movement in the Earth's crust.
Lauren Berger, a Texas A&M University doctoral student, has been awarded a prestigious FINESST grant from NASA to study Martian dunes. She aims to analyze the shapes and patterns of compound dunes on Mars using high-resolution images, comparing them to similar dunes on Earth.
A research team from the University of Göttingen investigated the influence of the Zagros Mountains on Earth's surface bending. They found that the Neotethys oceanic plate is breaking off horizontally, creating a depression in the region.
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.
The American Physical Society's joint March Meeting and April Meeting will convene more than 14,000 physicists from around the world to present new research in various fields. The conference will be held in person in Anaheim, California and online everywhere March 16-21.
Researchers have created the first-ever meridional profile of Mars' radiant energy budget, showing a polar energy surplus and a tropical energy deficit. This discovery provides critical insights into Martian weather patterns and climate evolution.
A recent Colorado State University study demonstrates that climate change can affect earthquake frequency, as glaciers recede and slip along faults increases. This suggests that earthquake activity could increase as glaciers melt, impacting hazard assessment and seismology.
Scientists have developed a new technique to study faults, which can improve earthquake forecasts by determining the origins and directions of past rupture events. By analyzing curved scratches left on the fault plane, researchers can pinpoint where earthquakes start and spread, providing valuable insights for modeling future scenarios.
The US Naval Research Laboratory (NRL) will present its latest advancements in Earth and space sciences at the American Geophysical Union (AGU) Conference. NRL researchers will share their work on topics such as atmospheric data assimilation, ocean sciences, and geostationary ocean color.
A new study from Tel Aviv University uses smartphone data to predict wildfire risk, overcoming individual device errors by averaging large amounts of public data. The method provides valuable insights into wildfire evaluation, especially in remote areas lacking traditional weather stations.
Scientists have discovered birth sites of gigantic elliptical galaxies, suggesting large gas flows and galaxy collisions created these ancient systems. The research, published in Nature, may finally unravel the enigma of how these giant galaxies formed.
The study discovered significant alterations in the region's state of stress and deformation following the 1975 Kalapana earthquake. The researchers found that Kīlauea's south flank experienced greater displacement prior to the earthquake, pointing to changes in mechanical properties influencing seismic activity.
Researchers have derived a new formula to estimate the maximum occurrence rate of Earth-like habitats (EHs) in the galaxy, concluding that these habitats are relatively rare. The investigation suggests that the probability of extraterrestrial intelligence is significantly rarer still.
The Open Radar Code Architecture (ORCA) offers scientists a standardized way to build ice-penetrating radar systems, reducing costs and increasing efficiency. This enables glaciologists to collect and reuse data more effectively, advancing research into melting ice sheets and sea-level rise.
A new model developed for predicting fault line slip also accurately forecasts landslides, providing a crucial tool for disaster preparedness. Researchers used data from monitored landslide sites in Northern California to validate the model's effectiveness.
The University of Texas at Arlington has been awarded a $1.5 million grant from the National Science Foundation to train scientists in space physics and data science. The grant will also enable UTA to create a specialization in space physics for students pursuing a Bachelor of Science in physics.
Researchers from Göttingen University identified the low crystallisation temperatures and groundwater origin of amethyst geodes in northern Uruguay. The study proposes a new model explaining their formation, which could improve exploration techniques and lead to sustainable mining strategies.
Researchers confirm multi-stage lithospheric dripping as cause of basin subsidence in Central Anatolian Plateau. Laboratory experiments and satellite data reveal intricate connection between plateau uplift and basin formation events.
A new study examines the relationship between the 2024 M7.6 Noto Hanto earthquake and a preceding earthquake swarm in Japan's Noto Peninsula. The research highlights the importance of monitoring seismic swarms and understanding fluid migration patterns to enhance predictive models for future seismic events.
A massive landslide triggered by climate change melted the glacier at its base, causing a 200-meter (650-foot) tall tsunami that rocked back and forth inside a narrow fjord for nine days. The resulting seiche generated seismic waves that reverberated through Earth's crust, baffling scientists worldwide.
A massive rockslide in East Greenland triggered a towering tsunami and a rare global seismic signal that resonated for nine days. The study reveals how climate change-induced events like glacial thinning can lead to significant geophysical phenomena with widespread impacts.
A recent study by University of Washington researchers found that warmer, drier springs account for almost 70% of the discrepancy between predicted and actual streamflow in Colorado. The team's findings suggest that plants rely more on snowmelt during dry springs, leaving less water to flow into nearby streams.
Scientists have found that PKP precursors originate from ultra-low velocity zones in the Earth's mantle, which are likely generated by melting mid-ocean ridge basalts. These zones are not limited to hotspots, but rather spread across the core-mantle boundary beneath North America.
A uniquely powerful geomagnetic storm led to unprecedented changes in the upper atmosphere, including location and spread of particles, composition, and temperature. These changes may pose significant risks to satellites and GPS systems, as well as impact navigation and communication technologies.
The samples, obtained from river deposits in a dried-up lake on Mars, are crucial for understanding the Red Planet's water history. The fine-grained sediments in the rocks are believed to retain signs of past biological activity, including organic molecules, making them significant for searching for life on Mars.
A study by ETH Zurich scientists found that global warming's effects on plant recovery can last for thousands to millions of years. The research team discovered that the severity of climate shifts and the speed at which carbon is sequestered affect the duration of climate warming.
Scientists have developed a state-of-the-art computational model predicting land, ice and global sea-level interactions. The model estimates that reducing greenhouse gas emissions could slow melting Antarctic ice enough to allow Earth uplift to partially stabilize the ice sheet and prevent some future sea-level rise.
The UT Austin expedition aims to investigate how sediments control glacial melt and the future of the Greenland ice sheet. A robotic submersible will gather measurements of the glaciers' underwater walls and sediment-laden meltwater, while surveys and sediment cores will reveal past climate change impacts.
A new study reveals the geological footprint of persistent bottom currents within East Antarctic submarine canyons, carrying ocean heat to the continent. The discovery highlights the key role of these canyons in the melting of glaciers, contributing to sea level rise.
A new imaging technique allows scientists to visualize the Earth's rocky interior using GPS data, revealing details about the planet's crust and mantle. This method has the potential to improve earthquake predictions by combining it with other techniques.
Researchers estimate that between 280 to 360 meteorites strike Mars each year, forming impact craters greater than 8 meters across. The study uses seismic data from the NASA InSight Mission to make this estimate, which is five times higher than previously thought.
New modeling study reveals ephemeral streams contribute up to 55% of US river flow, playing a crucial role in transporting pollutants and nutrients. The findings highlight the importance of including these temporary streams under federal clean water regulations.
Researchers used pyrite to study the relationship between sediment mixing and oxygen levels in ancient oceans. They found that small amounts of sediment mixing can expose buried minerals to enough oxygen to start oxygen buildup. This challenges conventional wisdom about the role of oxygen in oxygen accumulation.
Daily tracking of ice melt has been made possible with a new method developed by researchers at DTU using 61 national GPS stations in Greenland. The study provides significant advancement in monitoring ice mass loss and understanding the processes behind the ice melting.
A recent analysis of cloud measurements and satellite data suggests that even tiny aerosol particles may play a significant role in cloud formation. This finding challenges current models and could have significant implications for predicting future climate change.
The study found that elevated nutrient levels impacted reef growth, leading to the establishment of slower-growing and more sediment-tolerant coral communities in deeper water. This provides evidence on early Holocene water quality and demonstrates the capacity of the reef to grow under conditions typically considered unsuitable.
A new study using atmospheric isotopes suggests Io has been volcanically active for its entire 4.57 billion-year history, driven by tidal heating. The findings indicate that Io has lost most of its sulfur through volcanic outgassing and recycling, supporting a long-lived volcanic history.
A third of China's urban population is at risk of city sinking, with 45% of 82 cities showing signs of subsidence, threatening roadways, runways and building foundations. Groundwater withdrawal and human activities are main drivers of land sinking, which can be mitigated by recharging aquifers and reducing pumping.
A nationwide study found that 45% of China's urban land is subsiding at a rate of 3 mm/year or faster, affecting nearly one-third of the nation's urban population. The study warns that 22-26% of China's coastal land will be below sea level by the next century, posing significant flooding risks.
Researchers have found evidence of a multifault network at subduction interfaces, contradicting the long-held concept of a single main fault. This discovery has significant implications for modeling earthquakes and predicting risks, which could lead to improved forecasts and mitigation strategies.
Researchers analyzed the last ice age to better understand the relationship between CO2 and global temperature. The study finds that the absolute worst-case scenario is unlikely, reducing the estimated warming from doubling CO2 by a full degree.
New study dates the Solar System's giant planet migration to between 60 and 100 million years after formation, based on analysis of chondrite meteorites. The findings may also shed light on the conditions that led to Earth's moon formation.
Researchers from USP produced maps showing areas of highest air pollution concentration and peak emissions periods; bus drivers have higher exposure levels than car or subway users. The study also found that green spaces have the best air quality, while high-rise buildings negatively affect dispersion.
Recent advancements in AI and IoT have improved earthquake prediction by identifying patterns in historical seismic data. However, limitations such as computational complexity, data quality, and interpretability remain, requiring a comprehensive approach to integrate diverse datasets.
A new study reveals that the Ross Ice Shelf, the largest ice shelf in Antarctica, moves 6-8 centimeters once or twice a day due to slip events triggered by the Whillans Ice Stream. This movement has significant implications for understanding the stability of Antarctica's ice shelves and potential icequakes.
The Lunar Environment Monitoring System, developed by UMD researchers, will track seismic activity on the moon's surface during the upcoming Artemis III mission. The system's data will help prepare NASA for a long-term presence on other planetary bodies.
Researchers used computer simulations to demonstrate that a subduction zone originating in the Western Mediterranean will propagate into the Atlantic under the Strait of Gibraltar. This will create a new Atlantic subduction zone, which will then move down into the Earth's mantle.
A recent study integrates domain knowledge into data-driven machine learning models for well logging reservoir parameter prediction. The model, PINN, uses petrophysics constraints to guide training and improve accuracy, especially in cases with small sample sizes.