Articles tagged with Oceanography
A Florida State University scientist has discovered a 4.4 billion-year-old Martian meteorite that may be the first recognized example of ancient Martian crust. The analysis reveals information about the origin and age of Mars' crust, confirming that the planet did not experience a giant impact that melted it in its early history.
NASA's TRMM satellite tracked Tropical Storm Francisco and found a large rain-free area at its center. Rainfall rates exceeded 130mm per hour in Super-typhoon Lekima's outer eye wall, contrasting with the weakened Francisco.
NASA's Terra satellite captured visible and infrared data on Lekima, revealing its 20 nautical mile-wide eye with intense thunderstorms. The storm's powerful winds were near 140 knots, extending 55 nautical miles from the center.
Tropical Storm Lorenzo is facing wind shear and will move into cooler waters, sapping its strength. The NHC notes that despite wind shear, Lorenzo maintains deep convection with strongest thunderstorms in its eastern quadrant.
A global analysis of Kawasaki disease cases found a seasonal occurrence shared by regions across the Northern hemisphere, with peak cases in winter months. The study suggests that large-scale wind currents may play a role in transmitting the suspected infectious agent.
Typhoon Usagi intensified by 65 knots in 24 hours, reaching Category 4 strength with sustained winds of 138 mph. The storm is expected to continue intensifying and pass near Hong Kong on Sept. 22.
Residents of Mexico's eastern and western coast are experiencing double tropical trouble as two storms, TD13E and Ingrid, form in the Pacific Ocean. The storms have the potential to drop up to 20 inches of rain, causing life-threatening flash floods and mudslides.
Tropical Storm Gabrielle has weakened to a depression by Sept. 5, while three other low pressure areas struggle to develop in the Northern Atlantic Ocean. Heavy rainfall is expected in Puerto Rico and the US Virgin Islands, with isolated maximum amounts of up to 8 inches possible.
A new study by Stanford scientists found that extreme weather events, such as record-breaking heat, are more likely to occur in the US due to global warming. The researchers analyzed historical weather data and climate models to quantify the increased risk of severe heat events.
Tropical Storm Kiko formed on Sept. 1 and intensified quickly, with maximum sustained winds reaching near 70 mph. However, cooler waters and wind shear weakened the storm, leading to its dissipation by Sept. 4. Meanwhile, another low-pressure system is forming near Mexico's southwestern coast.
Tropical Depression Pewa dissipated over the Pacific Ocean on August 26, 2013. NASA satellite data revealed a significant decrease in rainfall by August 25, indicating the storm's weakening. The Joint Typhoon Warning Center forecasted this outcome, and further observations confirmed the depression's waning life.
A Pacific-wide satellite view caught Tropical Storm Pewa moving westward, with a rounded circulation, near 23.6 north latitude and 169.3 west longitude. Another developing low-pressure area, System 94E, is also visible, with high chances of becoming a tropical depression.
Tropical Storm Jebi developed on July 31 and is now filling half of the South China Sea. NASA satellite data shows strong winds and heavy rainfall in a band of thunderstorms southwest of the center.
The Env-DATA system can handle millions of data points, serving hundreds of scientists simultaneously. Researchers used the system to analyze Galapagos Albatross flight paths, revealing preferred areas foraging on the Peruvian coast.
Post-Tropical cyclone Andrea sped away from the Maine coast, passing through Atlantic Canada before entering the Northern Atlantic. The storm brought tropical-strength winds and precipitation to areas like Portland, Maine, with 0.99 inch of rain recorded.
Researchers from LMU Munich uncovered well-preserved fish fossils, shedding light on the gobioid order's evolution and classification. The discovery of perfectly preserved otoliths allowed for a genetic code-like analysis, placing a new species in the Butidae family.
Researchers at UTHealth used sea snail nerve cells to demonstrate a strategy for overcoming memory deficits. By retraining the cells with optimized training schedules, they reversed memory loss and restored connection strength.
Cyclone Victoria was torn apart by strong wind shear, with TRMM spotting limited rainfall areas. The storm dissipated due to interaction with cool waters.
A team of researchers from the University of Bristol and the University of Bern studied the investment strategies of dominant pairs in a species of cichlid fish. They found that removing large helpers for 30 days allowed dominants to reduce their territorial duties, with new helpers taking over after seven days.
Rising temperatures are expected to lead to a massive 'greening' of the Arctic, with wooded areas increasing by up to 50% over the next few decades. This dramatic change will accelerate climate warming at a rate greater than previously predicted, having significant impacts on the global ecosystem.
Researchers predict a massive 'greening' of the Arctic due to rising temperatures, which could lead to an acceleration of climate warming. The models suggest that tree cover could increase by up to 50% over the next few decades, resulting in significant impacts on the global ecosystem.
Cyclone Sandra is intensifying in the Southern Pacific Ocean, with NASA's Aqua satellite capturing infrared data showing cloud top temperatures growing colder and thunderstorms strengthening around its center.
Heavy rainfall rates of 2 inches/50 mm per hour were observed around the center of circulation, with powerful thunderstorms reaching heights of 9.3 miles (15 kilometers). The tropical storm strengthened and moved east-northeast at 11 knots (12.6 mph/20.3 kph), affecting New Caledonia by March 11.
A new climate model developed at NOAA's GFDL predicts an increase in snowfall for Earth's polar regions and highest altitudes, but a decline globally due to rising CO2 levels. This could spell trouble for regions relying on snowmelt as a source of fresh water.
Scientists have isolated oldest biomolecules directly from 350-million-year-old crinoid fossils in Ohio and surrounding areas. The findings suggest that complex organic molecules can survive fossilization, providing new insights into ancient life.
The Woods Hole Research Center has awarded the Lawrence S. Huntington Environmental Prize to Dr. Gro Harlem Brundtland, a renowned leader in sustainability and climate change. Dr. Brundtland's vision of sustainability has inspired generations of scientists and policymakers.
A new kind of pterosaur, Eurazhdarcho langendorfensis, has been identified by scientists from the Transylvanian Museum Society, University of Southampton, and Museau Nacional. The fossilized bones are approximately 68 million years old and belong to the azhdarchids group.
Tropical Depression Wukong is struggling to survive in the South China Sea, with NASA satellite data showing moderate rainfall near its center. The storm is moving west-southwest and is expected to dissipate over the next day or two, according to forecasters at the Joint Typhoon Warning Center.
Researchers analyzed chromosome changes in sea cradles, revealing a karyotype of 2n=24 chromosomes with biarmed elements. The study proposes that fusion among uniarmed elements drove this change in the Acanthochitonina suborder.
A team of international scientists has developed a more consistent definition of climate sensitivity in prehistoric times, which helps improve comparison with IPCC estimates. The study found that the likely range of climate sensitivity consistently has been of the order of 2.2 to 4.8 degrees C per doubling of CO2.
The North China Craton's thin lithosphere and signs of thermo-tectonic reactivation challenge the traditional view of a stable cratonic lithosphere. The concept of 'craton destruction' has been widely accepted, influencing understanding of intraplate magmatism and continental evolution.
Tropical Storm Son-tinh is moving into the South China Sea after affecting the Philippines. The storm is expected to cross the sea and make landfall in northern Vietnam on October 27.
The Antarctic ozone hole reached its maximum size this year, covering an area of 8.2 million square miles, but was smaller than expected due to warmer temperatures. The average size of the ozone hole was 6.9 million square miles, with scientists attributing the change to natural fluctuations in weather patterns.
Scientists have discovered a complete geomagnetic field reversal 41,000 years ago in Black Sea sediments, which was associated with rapid climate changes and a massive volcanic eruption. The reversal lasted only 440 years and led to a significant increase in radiation exposure due to a weaker magnetic field.
Scientists have used satellite data to reveal a geological oddity in the Altiplano-Puna plateau, where magma is forming a large blob that pushes up the earth's surface across an area 100km wide. This 'sombrero uplift' could provide insights into massive magmatic events leading to super volcano formation.
Tropical Storm Nadine's center maintains a visible eye in infrared imagery, indicating its ability to withstand weakening winds. The system is expected to approach the Azores by Oct. 3, while System 96L shows potential for development into a tropical depression.
NASA's TRMM satellite observed intense rainfall and towering thunderstorms in Hurricane Michael, indicating a potential intensification. Over the next 24 hours, Michael's maximum sustained winds more than doubled from 50 mph to 115 mph.
Typhoons Tembin and Bolaven continue to churn in the Philippine Sea, with Tembin showing a wide area of very high cloud top temperatures and Bolaven strengthening into a typhoon. Bolaven is expected to intensify further, moving northwest and posing a significant threat to the region.
The Lab in the Wild project aims to gather data on how people think, perceive information, and use technology from around the world. Researchers will analyze thousands of users' responses to tests designed to elicit information about their online culture, including preferences for website design and functionality.
A new study found that people living near the coast tend to have better health than those living inland. The analysis showed that the link between living near the coast and good health was strongest in economically deprived communities.
Two projects investigating the use of robot submarines to map and monitor the UK seas have received £720,000 in funding. The projects aim to inform future government policy on protecting the marine environment by generating data that will guide the use of autonomous underwater vehicles (AUVs) and sea gliders.
The article discusses new research on dynamic earth processes, including the link between wildfires and sediment transport in coastal watersheds, as well as high-pressure metamorphism in northwest China. Additionally, studies on the Gold Hill shear zone and magma-filled fractures in the Appalachian mountain belt are also presented.
A new study reveals that West Antarctica's floating ice shelves are fracturing and retreating inland, potentially accelerating ice loss to the sea. The research found that the margins of these ice shelves are heavily rifted, resembling a cracked mirror in satellite imagery.
The University of Texas at Dallas and Virginia Tech have created an undersea vehicle inspired by the common jellyfish, which runs on renewable energy. The robotic jellyfish, dubbed Robojelly, feeds off hydrogen and oxygen gases found in water, producing only water as waste.
A Loyola bioethicist calls Jon Stewart 'our greatest public intellectual' due to his promotion of serious ideas and discourse. Kayhan Parsi argues that Stewart, through 'The Daily Show,' creates a space for writers and intellectuals to discuss their work, making him a catalyst for independent thought.
Cyclone Jasmine was classified as a powerful category 4 cyclone with wind speeds of 132 mph, but was weakening due to cooler waters and drier air. A 3D image created from TRMM data revealed the eye's funnel-shaped surface and intense thunderstorms dropping rain at over 2 inches/hr.
A low-pressure area in the Gulf called System 90L is being watched for possible development into a subtropical depression, although chances are now considered slim. The system is expected to bring widespread heavy rainfall and gusty winds to northern Cuba, the Florida Keys, and south Florida.
New studies reveal mantle-driven uplift in the Rocky Mountains and Colorado Plateau, while also documenting extensional fault systems in the Aegean Sea. Additionally, researchers examine the impact of fault-enhanced irregularities on groundwater flow paths, with implications for nuclear waste repositories.
A new study reveals that a simple circuit in the sea slug's brain links hunger and pursuit, allowing it to make decisions based on how information makes it feel. The researchers found that hungry animals turn towards stimuli that smell like food, while satiated animals turn away or do nothing.
A new model suggests that Siberian mantle plume contained recycled oceanic crust, leading to exceptional magmatic eruptions and mass extinction. The team's study provides new insights into the origin of the Siberian Traps and their relation to the Permo-Triassic mass extinction event.
A team led by Mercyhurst College archaeologists is on the verge of uncovering cultural evidence of early human occupation in the submerged continental shelf of the eastern Gulf of Mexico. Using advanced technology, they aim to excavate archaeological materials from previously identified high-potential locations.
Tropical Storm Nock-ten has been a big rainmaker across the Philippines for two days, with NASA tracking its heavy rainfall using TRMM satellite data. The storm's 3-D image revealed towering convective storms near the center of circulation, extending to heights above 15km, associated with future strengthening.
Frigid cloud top temperatures in Hurricane Dora's thunderstorms indicate their strength and power. The storm's strong convection and rapid rising air formed a large area of very cold and powerful thunderstorms around the center.
A low pressure area north-northeast of Puerto Rico has been detected by the GOES-13 satellite, located about 460 miles northeast of San Juan, Puerto Rico. The National Hurricane Center gives this system a 20% chance of development into a tropical storm over the next two days before it hits wind shear.
Researchers found people on ships are steadier when focusing on the horizon, unlike on land where they sway more when gazing far away. This phenomenon may help differentiate between body movement and ship movement, potentially predicting motion sickness.
Researchers from eight nations are analyzing sedimentary deposits from a 460-meter deep borehole to reconstruct the climate history of the region. The drilling project aims to provide information on past environmental changes in the Bethlehem area, including those related to early human migration.
Tropical Storm Georgette formed rapidly south of Cabo San Lucas, Mexico, with the GOES-11 satellite capturing its clouds extending over extreme southern Baja California. The storm is forecast to make landfall in western Mexico, bringing heavy rainfall and tropical storm-force winds.
Researchers have developed a new nanotube technology that can generate sound waves for submarine sonar while also canceling out noise. This breakthrough could enhance underwater detection and stealth capabilities for military submarines.
Tropical Depression 6E has been downgraded to a remnant low pressure system in the Eastern Pacific Ocean. It's now being stretched by strong vertical wind shear and moving into cooler waters, making strengthening back into a tropical storm unlikely.
Tropical Depression 6-E has formed in the Eastern Pacific Ocean and is struggling to organize due to moderate to strong wind shear. The storm's maximum sustained winds are near 35 knots (38 mph), and it is expected to continue moving west-northwestward over the weekend.