Articles tagged with Oceanography
Tropical Cyclone Winston has weakened significantly due to strong vertical wind shear, with strongest storms pushed south of the center. The storm is expected to move south-southwest and weaken further, becoming sub-tropical south of New Caledonia.
A James Cook University study found that turtles are left vulnerable due to gaps in reporting of bycatch, a common cause of sea turtle deaths. The researchers recommend pooling bycatch records across fisheries and states over time to better measure the impact on turtle populations.
EPIC captures daily views of Earth's clouds, land surfaces, and aerosols, yielding insights into climate change. The satellite's data also reveals the progression of Sahara dust across the Atlantic Ocean in real-time.
Researchers at Lund University estimate that sea traffic emissions account for almost half of measured particles in coastal air, exceeding previous estimates. Nanoparticles can penetrate deeper into the lungs than larger particles, contributing to health issues.
The Andes mountain chain was formed 14 million years ago, according to new research from the University of Bristol. The study used a novel method based on cosmic rays to determine the age of large boulders in the western margin of the Andes.
Typhoon In-fa intensified into a typhoon near Micronesia, prompting warnings and advisories for the region. The storm is expected to continue intensifying as it moves west-northwest through Micronesia and the Marianas, bringing stronger winds and heavier showers.
Tropical Storm Kate forms in Atlantic Ocean near Bahamas, with NASA tracking its development and movement. The storm is expected to strengthen over the next two days, bringing potential heavy rain to the region.
RapidScat measured sustained winds of over 80 mph near the center of Hurricane Olaf, with tropical storm force winds extending up to 155 miles from the center. The hurricane is forecast to move slowly northward, bringing life-threatening surf to Hawaiian Islands
Tropical Storm Champi affects the Northwestern Pacific Ocean with strongest thunderstorms east-southeast of its low-level center. The storm is about 218 nautical miles northeast of Saipan, moving west at 16 knots, with maximum sustained winds near 50 knots.
Tropical Depression Choi-wan formed in the northwestern Pacific Ocean with maximum sustained winds near 30 knots, moving west-northwest. The Joint Typhoon Warning Center predicts intensification to typhoon strength over the next three days.
GPM measured rainfall rates at 122 mm/h, revealing intense rain showers and storm tops reaching 15 km. The tropical depression turned northwest late on September 25, with expected weakening over the next two days.
Typhoon Krovanh's strongest winds were found tightly wrapped around its center, reaching 67 mph/108 kph at 20-30 miles from the center. The storm was weakening and moving north at 13.8 mph/22.2 kph, with winds expected to curve northeast over the next few days
Tropical Storm Linda is weakening due to a turn to the west-northwest and decreasing forward speed. The storm is expected to become a remnant low later on September 10, bringing swells that will generate life-threatening surf and riptide conditions along the Pacific coasts of Baja California.
RapidScat analyzed Tropical Storm Henri's surface winds on Sept. 8, revealing tropical-storm-force winds north and east of the center. The storm's wind speed is expected to increase as it moves over warm water, potentially strengthening before weakening.
NASA's RapidScat observed hurricane-force winds extending about 30 miles from the center of Hurricane Linda. The storm is rapidly weakening due to decreasing central pressure and cloud top temperatures warming.
NASA's Global Precipitation Measurement mission has detected heavy rainfall from Tropical Depression Kilo as it approaches Johnston Island. The tropical depression is expected to strengthen into a hurricane by Tuesday, bringing strong winds and large surf to the area.
A new study published in Preventive Medicine found that individuals over 65 who have access to natural environments report better sleep quality. The research suggests that exposure to green spaces and natural amenities can improve sleep patterns, particularly for men.
Hurricane Danny is a small Category 2 hurricane with hurricane-force winds extending only 15 miles from the eye. Satellite data indicates maximum sustained winds of near 105mph and an estimated minimum central pressure of 976 millibars.
Researchers used seismometers to study Peruvian flat slab subduction, revealing its structure and evolution over time. The team found the angle of subduction is shallowest near the Nazca Ridge, where the plate sinks 90 km down before flattening out.
Tropical Depression Molave was characterized by strongest winds of near 24 meters per second (53.6 mph/86.4 kph) in its southeastern quadrant on August 8, but these have since weakened. On August 9, NASA's Terra satellite captured a visible-light image showing the depression winding down about 400 miles away from Japan.
The study found that between 30-47% of Balearic shearwater colonies are exposed to high levels of light pollution, posing a significant threat to the species. The researchers recommend establishing rescue campaigns specifically for emancipation periods to reduce mortality rates among these endangered seabirds.
A new study finds that climate change will lead to overall declines in plant growing days by 2100 due to warming, drought, and limited solar radiation. The study reveals that tropical regions will face significant reductions in suitable climates for plant growth, with some areas facing up to a 200-day reduction per year.
The accumulation of perfluoroalkyl substances in Canadian birds' eggs is a complex issue with varying trends among species. Some toxins are decreasing due to manufacturing phase-outs, while others continue to rise in the oceanic environment.
The GPM satellite captured the effects of wind shear on Tropical Cyclone Joalane as it weakened in the Southern Indian Ocean. Cloud tops were tilted southward, indicating strong vertical shear affecting the storm.
Tropical Cyclone 05W formed in the Northwestern Pacific Ocean on April 3, with NASA's GPM satellite analyzing rainfall rates and creating a 3-D image of high thunderstorms. The storm was moving west-northwest through Micronesia at 11 knots per hour.
The Global Precipitation Measurement (GPM) satellite provided data on rain rates throughout Cyclone Pam, revealing a well-defined inner eyewall with intense precipitation features. The cyclone's maximum sustained winds were estimated at 135 knots (~155 mph), indicating a near category 4 storm.
Tropical Cyclone 15S forms in Mozambique Channel, bringing heavy precipitation rates of over 30mm/hour. The storm is expected to meander and dissipate near Madagascar's coast.
A new instrument can rapidly analyze samples to determine how methane was formed, differentiating between microbial and thermogenic origins. The technique uses isotope ratios to identify clumpiness in methane molecules, revealing slower rates of production for cow-gut methane.
Research reveals spatial clusters of personality traits within cities, states, and countries, with associations between life satisfaction, terrain preference, and self-esteem. Studies also explore the role of geography in shaping individual behavior and well-being.
Tropical Cyclone 14S formed on February 21 in the Southern Indian Ocean, slowly organizing and consolidating. The storm intensified to 35 knots with strong thunderstorms circling its center, forecasters predict it will intensify further over the next three days
A new study predicts that the Western US will face persistent drought worse than any seen in the past 1,000 years, driven by human-induced global warming. The region's larger population and increased resource use will exacerbate the devastating impacts of such a drying period.
The FASEB MARC Program has awarded 7 travel grants totaling $12,950 to students and post-docs from underrepresented groups attending the 2015 IHCM Short Course. The program aims to increase diversity in biomedical research by promoting participation of young scientists.
Diamondra has moved south-southeastward at 5 kph and is downgraded to a subtropical cyclone. The Joint Typhoon Warning Center will continue to monitor the storm for signs of regeneration.
Researchers at MIT have developed software that assesses risk in planning algorithms, suggesting low-risk alternatives when a solution is not possible. The system uses probabilistic models to determine the feasibility of a plan and can offer modifications to relax constraints or add resources to mitigate risks.
NASA captured a visible image of Tropical Cyclone Bakung's elongated remnants on Dec. 5, showing low-level circulation and poorly defined storm system. The remnants were weakening due to unfavorable conditions with strong vertical wind shear, making redeveloping unlikely.
Heavy rainfall amounts of over 450 mm were found in eastern Philippines near where Typhoon Hagupit came ashore. The typhoon's slow movement resulted in frequent flooding along its track.
The new journal ASCMO addresses the need for an outlet to publish statistical methodology work in climate change and atmospheric/oceanic applications. It will feature accessible articles on scientific advances and statistical methods for interdisciplinary researchers.
A new study reveals that nearly 20% of tropical forests across Amazonia are at risk from human activities such as logging, mining, and agriculture. Protecting these carbon-rich ecosystems is crucial for global climate stability and the cultural identity of indigenous peoples.
Tropical Depression 21W made landfall in southern Philippines on Nov 26, with heavy rainfall warnings issued for several provinces. The storm is forecast to track westward along a high-pressure ridge before strengthening in the Sulu Sea.
Hurricane Vance's tropical-storm force winds stretched over northwestern Mexico, producing rainfall totals of 4-8 inches with isolated amounts up to 12 inches. The storm is expected to rapidly weaken due to increasing vertical wind shear.
The 21st Eastern Pacific tropical depression, TD 21E, formed far south of Acapulco, Mexico. Maximum sustained winds near 35 mph are expected to slowly strengthen over the next 48 hours.
Typhoon Phanfone formed a large eye with intensifying winds reaching 110 knots (126.6 mph). The typhoon is predicted to peak at 125 knots and then weaken, passing near Tokyo, Japan.
New research suggests the Moon's 'ocean of storms,' Oceanus Procellarum, was formed by ancient rifts in the crust that provided a magma plumbing system. This theory argues against the long-held impact basin hypothesis and provides a new alternative for understanding the region's unique shape and composition.
NASA's Aqua satellite detected powerful thunderstorms around Tropical Storm Polo's center, indicating strengthening conditions. Rainfall totals of 5-10 inches expected over coastal areas in Michoacan, Colima, and Jalisco states, with life-threatening flash-floods and mudslides possible.
Tropical Storm Fausto has degenerated into a remnant area of low pressure, with forecasters attributing its weakening to vertical wind shear and mid-level dry air. The remnants are expected to dissipate as they move through an area of increasing wind shear.
A new study suggests that using multiple perspectives in ads can have negative effects on consumer processing, leading to difficulty in forming a story and negative evaluations. Brands should use care when placing both pictures and imagery instructions in the same ad.
Researchers found that elephant seals have 10% carboxyhemoglobin, similar to someone smoking 40 cigarettes a day, and more than healthy humans. The study suggests carbon monoxide may be beneficial at low levels, preventing inflammatory responses and inhibiting cell death.
A new research by Florida State University scientists provides a detailed look at global land surface warming trends over the last 100 years. The study reveals that not all areas have warmed at the same rate, with some experiencing cooling and others remaining unchanged.
A team of researchers analyzed 25 Kīlauea eruptions over the past 600 years to determine that the variability in deep magma composition strongly influences eruption styles. The study found that more gas-rich magmas produce explosive eruptions.
A recent study reveals that persons captured in medieval raids into present-day Finland, Russian Karelia, and the Baltic Countries were sold on remote trade routes extending to Central Asia. The demand for blonde girls and boys as exotic luxury items drove this trade, with only a few hundred of thousands reaching southern markets.
Researchers have discovered a magnetic anomaly deep within the Earth's crust that suggests a significant portion of what is now Africa was left behind in the American southeast when Pangea broke up. This finding challenges existing theories on continental rifting and the break-up of supercontinents.
NASA's TRMM satellite gathered data on rainfall rates in the South China Sea as Tropical Depression TD04W weakened. The storm's remnants dissipated near Vietnam, marking the end of a potential regeneration threat.
Scientists successfully reassemble two halves of a giant sea turtle bone, one dating back to the Cretaceous Period and the other from the 19th century. The discovery reveals that some exposed fossils can survive longer than previously thought, with calculated estimates suggesting the turtle's size was around 10 feet long.
Climate scientists analyzed tree rings to find that Genghis Khan took power during a severe drought, but his empire expanded during the wettest period in the region. The study suggests human-caused warming may be exacerbating current droughts in Mongolia and Inner Asia.
NASA's Aqua satellite captured a visible image of Tropical Cyclone Hadi's remnants on March 12, showing the strongest thunderstorms south of the center. The Joint Typhoon Warning Center downgraded the potential for significant tropical cyclone development to low due to marginal environment and weak model development.
Researchers found relatively low iron amounts and minimal sulphur compounds in the Ghost wreck, suggesting it might not face the same preservation issues as the Vasa. Three studied ships, including the Crown, display more aggressive sulphur compounds and higher iron concentrations.
A study by UC Irvine and other researchers found that Chinese air pollution affects the American West Coast, particularly Los Angeles. The pollution is caused by the manufacturing of goods for export, leading to an extra day of smog exceeding federal limits each year.
NASA's Aqua satellite detected powerful thunderstorms and cloud top temperatures exceeding -63F/-52C, indicating strong uplift in the low pressure area. The storm consolidated and organized into Tropical Cyclone 09S, expected to strengthen and bring gusty winds and rainfall to Mozambique.
System 90L's chances of tropical development dismissed after hostile upper-level winds and diminished showers; no longer considered a threat by NASA. Upper-level conditions made it difficult to identify the low-pressure system, leading to its fizzling out.
System 90L has developed in the eastern Atlantic Ocean and NASA's Aqua satellite captured infrared data on the clouds, revealing strongest thunderstorms northeast of the center. The non-tropical low is generating tropical-storm-force winds but is expected to be affected by strong upper-level winds shear, likely preventing organization.