Articles tagged with Oceans
Researchers found that 35% of organic particles sink to depths due to fragmentation, regulating the oceans' capacity to sequester CO2. The discovery helps explain what happens to half of the particle flux that sinks to depths, previously unknown.
Tropical Cyclone 12P formed on January 25 with peak winds at 35 knots and dissipated by January 27 under adverse conditions. NASA's Aqua satellite observed the storm's demise, revealing areas of heavy rainfall that were quickly dissipating.
Tropical Cyclone Esami formed on January 24 and dissipated three days later due to weakening winds. NASA's Aqua satellite imagery confirmed the storm's dissipation on January 27.
The Blue Acceleration refers to the rapid increase in human pressure on the world's ocean since the start of the 21st century. Scientists analyzed 50 years of data from various industries and found that the oil and gas sector is the largest contributor, responsible for one-third of the ocean economy.
The AutoNaut is a specially-adapted sea-going robot that can deploy an underwater Seaglider, carrying sensors for climate research. The vessel has been tested off the coast of Barbados and will be used to track cloud formation and its role in the climate system.
Tropical Cyclone Calvinia formed on Dec 29 and covered the island of Mauritius with bands of thunderstorms by Dec 30. The storm's organized shape indicated a high level of organization.
Tropical Storm Sarai has formed near Fiji, with maximum sustained winds near 35 knots (40 mph/65 kph) and a band of thunderstorms wrapping into its low-level center. The cyclone is expected to intensify as it passes southwest of Fiji, with the Joint Typhoon Warning Center predicting steady intensification to 65 knots.
A floating array of sensors in the Pacific Ocean will provide a comprehensive view of Earth's interior, offering insights into buoyancy, viscosity, density, and temperature of the deep mantel plume. The array will help scientists understand the plate-tectonic cycle that gives us energy and reveals the potential barriers for material fl...
A team led by the University of Exeter suggests that animals carrying sensors can fill gaps in ocean monitoring, particularly in areas near poles and shallow coastal regions. The study highlights the potential for animal-borne sensors to enhance our understanding of climate variability and weather patterns.
NASA's Aqua satellite captured an image of newly formed Tropical Storm Sebastien northeast of the Leeward Islands in the Atlantic Ocean. The storm is moving northwest at 8mph and may strengthen slightly over the next day.
Matmo strengthened from a tropical storm to a storm with hurricane-force in the overnight hours of Nov. 7, according to NASA-NOAA's Suomi NPP satellite imagery. The Joint Typhoon Warning Center predicts Matmo to make landfall near the border of India and Bangladesh on Saturday, Nov. 9.
Research reveals oceanic black carbon differs significantly from riverine dissolved black carbon, raising fundamental questions about its origin and fate. The new technique uses stable carbon isotope analysis to track terrestrial sources of black carbon in the ocean.
Researchers found that a pathogenic fungus alters the metabolism of its host algae, producing carbolines that benefit the fungus while harming the algae. The study sheds light on the complex interactions between microorganisms and their hosts in oceanic ecosystems.
A $1.2 million NSF-funded study led by Texas A&M University is exploring the use of virtual reality training simulators to train workers for extreme environments. The researchers aim to create a framework for scenario-based simulations and games that utilize virtual reality, eye tracking, and brain wave data.
Scientists report that over one-third of ocean areas under protected status result from the annual Our Ocean Conference. The conference has driven meaningful action and elevated ocean issues on the international stage, with 4.8% of the global ocean area now protected.
A new study has confirmed that a massive asteroid impact led to the extinction of dinosaurs and much of life on Earth. The impact caused rapid ocean acidification, which lasted for tens of thousands of years before life forms recovered and the carbon cycle reached a new equilibrium.
The Suomi NPP satellite provided a composite visible image of Super Typhoon Hagibis, revealing its impressive structure with an eye surrounded by powerful thunderstorms. The storm maintained its intensity as it moved north-northwest towards Japan.
Researchers have developed a novel statistical analysis to determine the global picture of how the ocean helps predict the low-level atmosphere and vice versa. The study reveals that the ocean influences the atmosphere almost everywhere in the extratropics, shedding light on regional climate prediction.
An interdisciplinary team from Northwestern University has developed a non-invasive imaging platform to study coral nanoscale structures and quantify pigment absorption in live corals. This tool could help researchers develop strategies to prevent coral reef death due to climate change.
The study's findings indicate that global tuna catches have increased by 1,000% in six decades, driven by industrial fisheries operating beyond capacity. The Pacific Ocean accounts for 67% of total catches, with many species, including bluefin and sharks, facing significant threats.
Hurricane Lorenzo has strengthened, becoming more organized with a rounded shape indicating intensification. The storm's eye is rapidly appearing in conventional satellite imagery, surrounded by very cold cloud tops.
Acting on ocean-focused emissions activities can significantly contribute to reducing greenhouse gas emissions. The implementation of changes in research, technology, and policy development could lead to a substantial reduction in global emissions by nearly 11 billion tons in 2050.
QUT researchers have created a new, safe way to clean up oil spills using a nontoxic, low-cost foam. The foam can be sprayed onto the surface of an oil spill and easily scraped away for safe disposal, offering a more efficient solution than current methods.
Tropical Storm Tapah exhibits a large thunderstorm band resembling a tail on NASA satellite imagery, suggesting better organization. The storm is also showing signs of strengthening, with forecasters predicting it will move north-northeast through the Sea of Japan.
Researchers found that as the Indian Ocean warms, it generates additional precipitation, drawing air from other parts of the world to dilute its salinity. This results in saltier water in the Atlantic Ocean, which accelerates its circulation, providing a potential 'jump-start' for the AMOC.
Tropical Depression Peipah weakened to a swirl of clouds on Sept. 16, with wind shear pushing strong thunderstorms southwest of the center. The storm was centered near 24.8 degrees north latitude and 142.8 degrees east longitude, about 82 miles east of Iwo To Island, Japan.
Tropical Storm Kiko strengthened into a tropical storm on Sept. 11, with NASA-NOAA's Suomi NPP satellite capturing its nighttime image on Sept. 12. The storm is forecast to approach hurricane strength later this weekend and is expected to continue moving west-northwest.
Tropical Storm Faxai has transitioned to an extra-tropical storm in the Pacific Ocean, characterized by a strong gale-force cold core low-pressure area. The system is expected to continue tracking through the Northern Pacific Ocean over the next several days with weakening winds.
Tropical Storm Gabrielle's strongest side was identified by NASA's Aqua satellite on September 8, 2019. The MODIS image showed strongest thunderstorms northeast of the center with fragmented bands south and southwest of the center.
NASA's Terra satellite used infrared light to analyze the strength of storms in Tropical Storm Faxai, finding strongest thunderstorms had cloud top temperatures as cold as minus 70 degrees Fahrenheit. The storm was predicted to make landfall near Tokyo on Sunday, Sept. 8.
Francesca Verones aims to create a comprehensive life-cycle assessment tool to evaluate the environmental impacts of ocean-related activities. Her research will consider everything from shipping routes and pollutants to tourism and trash management.
Typhoon Lingling strengthens in the Northwestern Pacific Ocean with powerful thunderstorms circling its 15 nautical-mile wide eye. The Joint Typhoon Warning Center reports that the storm is expected to intensify to 105 knots upon passing between Taiwan and Japan.
Hurricane Juliette has grown into a major hurricane, with its eye now visible in NASA satellite imagery. The storm's maximum sustained winds have reached near 125 mph (205 kph), and it is moving northwest at 8 mph (13 kph).
Tropical Depression Bailu forms in Northwestern Pacific Ocean, located about 674 nautical miles south-southwest of Kadena Air Base, Okinawa, Japan. The storm is moving northwest with maximum sustained winds near 30 knots (34.5 mph/55.5 kph) and expected to make landfall in Taiwan and then southeastern China.
NASA's Aqua satellite detected a weakened Tropical Storm Chantal, now classified as a depression, with strongest storms shifted to the northeast of the center. The storm is moving eastward at 17 mph and is forecast to slow down and make a clockwise loop through the weekend.
Tropical Storm Chantal formed despite strong winds, with eastward storms exhibiting vertical wind shear and cold cloud top temperatures. The storm is forecast to slow and turn southward, potentially weakening into a tropical depression.
Tropical Depression 10E has formed in the Eastern Pacific Ocean, with NASA's GOES-West satellite capturing its formation near latitude 15.4 degrees north and longitude 107.3 degrees west. The depression is expected to strengthen over the next couple of days, potentially becoming a tropical storm by tonight and a hurricane by Friday.
A new study finds that human impacts on oceans have nearly doubled over the past decade and could increase by another 50% if left unchecked. Climate change, commercial fishing, and land-based pollution are major drivers of these changes.
NASA-NOAA's Suomi NPP satellite captured a visible image of Tropical Storm Krosa, revealing a massive storm with fragmented thunderstorms. The storm is expected to make landfall over western Shikoku, Japan in two and a half days with maximum sustained winds near 55 knots.
A landmark study on coral reefs has collected data on over 2.5 million individual corals across 44 countries, revealing alarming rates of bleaching due to climate change, with researchers urging immediate action to protect reefs in the Indo-Pacific region.
NASA's GPM satellite detected heavy rainfall around Tropical Storm Henriette's center, with rates reaching 25 mm/hour. The storm is moving west-northwest towards Mexico, expected to weaken and degenerate into a remnant low pressure area.
The University of Bath's Naturbeads technology uses cellulose to create biodegradable microbeads that can replace plastic microbeads in personal care products, reducing ocean pollution. The company will receive funding to commercialize the technology and test its use in cosmetic and personal care industries.
NASA's Aqua satellite captured a clear image of Typhoon Lekima, showing a tight band of powerful thunderstorms surrounding its central eye. The storm is expected to strengthen into a Category 4 hurricane, making landfall near Shanghai around August 12.
Tropical Storm Krosa developed a 'comma shape' signature from thunderstorms feeding into the low-level center. The storm's maximum sustained winds reached near 60 knots, strengthening as it moved north-northwest towards Japan.
NASA's Aqua satellite images show a ring of strong thunderstorms around Lekima's center, with maximum sustained winds near 50 knots. The storm is expected to strengthen into a typhoon and pass over Taiwan before dissipating off China's east coast.
Tropical Storm Gil formed on August 3 and strengthened to 40mph before weakening and degenerating into a remnant low pressure area. NASA's Terra satellite detected small areas of strong storms with cloud top temperatures as cold as -50F in the Eastern Pacific.
Tropical Storm Francisco formed in the Northwestern Pacific Ocean and was observed by NASA's Terra satellite using infrared light. The storm showed coldest cloud top temperatures as low as -80 degrees Fahrenheit, indicating strong thunderstorms with potential for heavy rainfall.
Tropical Storm Flossie is expected to cross into the Central Pacific basin later today, carrying maximum sustained winds of near 70 mph and a minimum central pressure of 993 millibars. Gradual weakening is anticipated over the weekend, with further decline in forward speed expected through early next week.
African biomass burning is a substantial source of phosphorus deposition to the Amazon Basin, Tropical Atlantic Ocean, and Southern Ocean. The study reveals that biomass burning may supply up to half of the annual phosphorus delivered to these regions.
Research found that African biomass burning is a substantial source of phosphorus deposition to the Amazon, Tropical Atlantic Ocean, and Southern Ocean. This discovery has significant implications for understanding Earth's climate and may impact primary productivity and carbon dioxide drawdown in both ecosystems.
Tropical Storm Erick is strengthening in the Eastern Pacific Ocean, with powerful thunderstorms and cold cloud tops indicating potential for heavy rainfall. The National Hurricane Center forecasts Erick to become a hurricane by Tuesday, with a turn towards the west-northwest expected.
Tropical Depression Dalila is weakening due to cooler sea surface temperatures and dry air. The system is expected to dissipate within a few days, with Dalila becoming a post-tropical remnant low tonight.
Tropical Depression 3 formed on July 22 and dissipated by July 24, with NASA's Terra satellite capturing an image of its remnant clouds. The depression was centered about 60 miles east-southeast of Daytona Beach, Florida, with maximum sustained winds near 35 mph.
Tropical Storm Danas is being affected by vertical wind shear, which is pushing against it and affecting the storm's shape. The Joint Typhoon Warning Center predicts that Danas will veer to the north-northeast and run parallel to the east coast of China.
Tropical Depression Danas has formed northeast of the Northern Philippines, affecting the country with its powerful storms and strong winds. The depression is currently moving west-northwest at a speed of about 25 knots, causing widespread disruption in the region.
A mathematical model explains relationship between oceans' carbon storage and environmental disruptions during mass extinctions. The study suggests that Earth's carbon cycle determines the magnitude of disruption, with external inputs influencing surges resulting from mass extinctions.
A record-breaking South American drought and marine heatwave in 2013/14 were caused by strong atmospheric convection over the Indian Ocean. The event displaced normal atmospheric circulation over South America, leading to extreme weather conditions and severe impacts on agriculture, public health, and fisheries.
Researchers at Shinshu University have discovered acid hydrolysis of vinyl polymer breaking down into salicylic acid and acetic acid, forming the basis for aspirin production. This innovative process has the potential to recycle vinyl on an industrial scale, reducing plastic waste and its environmental impact.
Tropical Cyclone 04W was torn apart by strong windshear in the Northwestern Pacific. The storm's remnants continue to move northwest and dissipate.
Walter Munk, a renowned oceanographer, has been honored with the establishment of the Walter Munk Scholar Award by the Marine Technology Society and the Walter Munk Foundation for the Oceans. The award recognizes outstanding achievements in ocean science, technology, exploration, or conservation.