Articles tagged with Oceans
Tropical Cyclone Aletta has degenerated into a remnant low-pressure area, with maximum sustained winds near 35 mph. The post-tropical cyclone is forecast to dissipate by the end of the week, moving toward the west at 7 mph.
Hurricane Bud has formed in the Eastern Pacific Ocean, bringing heavy rain and strong winds to southwestern Mexico. The storm is predicted to produce life-threatening flash floods and mudslides, as well as life-threatening surf and rip current conditions.
Tropical Storm Sagar brought heavy rainfall to Somalia, while Cyclone Mekunu caused widespread flooding in Oman and Yemen. The Integrated Multi-satellitE Retrievals for the Global Precipitation Measurement mission estimated heavy rainfall in various regions, with some areas receiving over 3 times their annual average.
Tropical Cyclone 05W formed near Vietnam on June 2, moving northwest and intensifying into a tropical depression. NASA's satellite imagery shows the storm's center south of Hainan Island, with forecasters predicting landfall in southeastern Hainan by June 5.
Tropical Cyclone 02A formed approximately 655 nautical miles south of Masirah Island, Oman. The storm was observed by NASA's Aqua satellite and is forecast to strengthen as it moves over warm waters before making landfall in Oman.
Tropical Cyclone 01A quickly formed in the northern Indian Ocean and strengthened into a tropical storm. The joint typhoon warning center noted maximum sustained winds near 46 miles per hour on May 16, indicating a potential for heavy rainfall.
A new underwater wireless optical communication system has been developed, allowing for high-quality live video transmission and real-time feedback. The system uses a bidirectional design to adapt to changing underwater environments, ensuring optimized power and transmission rates.
A study by Université de Montréal researchers found that 38% of countries' populations are exposed to methylmercury levels higher than safe for foetal development, with high-risk areas including the Maldives and South Korea. Industrial fishing has increased mercury exposure, especially in coastal and island nations.
Tropical Cyclone Flamboyan has been weakened by strong vertical wind shear, with precipitation pushed southeast of its center. The storm's elongated low-level circulation center is due to the presence of high winds, leading to a gradual decay over the next couple of days.
NASA's Aqua satellite captured images of Tropical Cyclone Flamboyan, revealing northwesterly wind shear pushing the storm southeast. The coldest cloud tops were highest in the atmosphere, indicating strong storms capable of producing heavy rainfall.
Researchers estimate oil spill thickness/volume using satellite observations, enabling more accurate monitoring and response efforts. The study provides critical insights for assessing the impact of oil spills on marine and coastal resources.
Tropical Cyclone Fakir is experiencing severe vertical wind shear, causing it to deteriorate rapidly. The system is expected to dissipate by April 26 due to unfavorable environmental conditions.
Researchers discovered that ocean anoxia, a decrease in dissolved oxygen, played a key role in the Permian-Triassic mass extinction. The team's new technique allowed them to analyze uranium isotopes in carbonates, providing insights into global anoxia and its link to climate change.
The project, led by Pacific Northwest National Lab, aims to develop a new method for producing and harvesting seaweed for biofuels. The team plans to deploy a three-mile-long recycled carbon fiber cable adrift in the open ocean to cultivate macroalgae.
A study on US newspaper articles about ocean health issues found that journalists use more than twice as much optimistic language as 'doom and gloom' language. Nearly half of the examined stories cited potential solutions to problems described in the sample's articles.
Researchers at UEA are using silent marine robots to record underwater sounds, providing valuable information on sea-surface wind speed and monitoring storms. The robots can also eavesdrop on marine life, such as whales and dolphins, and detect human activities like marine traffic and seismic surveys.
Tropical Cyclone Hola was torn apart by wind shear in the South Pacific Ocean. The satellite image showed the center of the storm fully exposed and almost devoid of precipitation except for the southern quadrant.
A new experiment by Iowa State University's Elizabeth Swanner simulated prehistoric oceans and found that much of the iron was reduced again into its dissolved form despite oxygenation by cyanobacteria. This unexpected result challenges traditional assumptions about how iron-rich sedimentary rocks are formed from ancient oceans.
Tropical Cyclone Hola was located southwest of the Pacific island nation of Vanuatu, with powerful thunderstorms wrapping into its center. The storm's maximum sustained winds were near 109mph, moving to the south-southwest at 4.6mph.
Marine animals such as seals, whales, sharks, turtles, seabirds, and others exhibit similar movement patterns globally, despite differences in geography, phylogeny, or travel mode. In coastal areas, tracking data show complex search behavior, while open ocean movements are more predictable.
The study provides a high-resolution view of fishing activity, showing that industrial fishing covers over 55% of the ocean's surface and involves over 70,000 vessels. The dataset reveals cultural patterns and ties fishing to politics and culture rather than natural cycles.
A team of scientists from UCSB and Global Fishing Watch analyzed satellite data to track the movements and activities of over 70,000 commercial fishing vessels worldwide. Their findings reveal that cultural patterns and politics play a significant role in shaping fishing practices, while natural cycles such as fish migrations are less ...
Tropical Cyclone Gita remained a Category 3 hurricane with maximum sustained winds of 115 mph, tracked by NASA-NOAA's Suomi NPP satellite. The storm showed symmetrical circulation and weakening cloud tops, indicating reduced uplift.
New research confirms maritime winds displace seal pups by hundreds of kilometers during their first winter migration. The study found that strong winds can increase pup displacement, but the impact on survival is unclear.
Scientists recorded over 4,500 sounds from tagged blue whales to analyze their calling patterns and behaviors. The study found that male whales were chattier at night, producing more calls than females, which may aid in reproduction.
NASA's Terra satellite captured images of Tropical Depression 02W on Feb. 9, showing a developing low level circulation center with minimal convection. The National Weather Service has issued a Tropical Storm Watch for Guam and Yap State due to hazardous surf and rip currents.
Wind shear significantly impacted Tropical Cyclone Cebile, with the bulk of clouds and thunderstorms being sheared to the southeast of the center. The storm is weakening due to dropping sea surface temperatures and high vertical wind shear, according to NASA's Aqua satellite observations.
Tropical Cyclone Cebile is being severely impacted by strong northwesterly vertical wind shear, causing clouds and thunderstorms to be sheared to the southeast of the center. The Joint Typhoon Warning Center predicts further weakening due to decreasing sea surface temperatures and persistent high wind shear.
Tropical Cyclone Cebile maintained its status as a major hurricane with sustained winds of 126.6 mph and an estimated eye visible through NASA's MODIS instrument. The storm is expected to weaken and turn southeast under adverse conditions.
Tropical Cyclone Cebile was a powerful hurricane in the Southern Indian Ocean when NASA-NOAA's Suomi NPP satellite captured an image of its well-rounded circulation center. The storm had maximum sustained winds of 132 mph, centered near 16.1 degrees south latitude and 76.1 degrees east longitude.
A new study by Cornell University reveals that oceanic plastic trash can convey disease to coral reefs, leading to devastating consequences. The research found that the presence of plastic debris on reefs increases the likelihood of disease from 4 to 89 percent.
Researchers estimate Eocene sea surface temperatures to be 30-36 °C, significantly warmer than present. The study provides insight into possible future climate change due to higher atmospheric CO2 levels during the Eocene epoch.
Financial aid to fisheries in developing countries has declined significantly, impacting food security and livelihoods. Sustainable fishing practices are crucial for climate change resilience, nutritional value, and employment opportunities.
Tropical Cyclone Berguitta is moving southwest towards Mauritius with sustained winds of 85 knots. The storm's strength is expected to be maintained over the next day and a half due to warm sea surface temperatures.
A study of ocean flotsam dispersion reveals that floating objects form submesoscale clusters before spreading apart. The findings could help estimate the impacts of ocean flotsam and aid the recovery of lost objects.
Tropical Storm Irving is experiencing severe wind shear, causing clouds to gather on one side and exposing the storm's center. The Moderate Resolution Imaging Spectroradiometer instrument on board NASA's Aqua satellite provided a visible image of this phenomenon.
Tropical Cyclone Ava is weakening and moving southward off the coast of Madagascar, according to NASA. The cyclone's maximum sustained winds are near 35 knots (40 mph/62 kph), expected to dissipate later in the day on January 9.
Tropical Storm Tembin was spotted by NASA's Terra satellite on Dec. 20 near the Philippine Sea, with maximum sustained winds of 40 mph and a westward trajectory. The storm is forecasted to move through the southern Philippine islands, potentially strengthening in the South China Sea.
Long-lasting compounds still dominate the outlook for ozone recovery, despite regulations by the Montreal Protocol. Short-lived compounds from human sources are expected to have minimal impact on ozone recovery due to their short lifetimes.
The oldest plesiosaur, Rhaeticosaurus mertensi, was a strong swimmer with modified limbs and a short tail. It had a streamlined neck and powerful muscles to propel itself through the water.
A global survey found that 91% of entangled marine turtles were dead, with serious wounds from entanglement and maiming. The study highlights the risk of plastic pollution to marine turtles, particularly young hatchlings and juveniles.
Researchers have discovered a long-sought source of ocean methane, a potent greenhouse gas contributing to global warming. The enzyme methylphosphonate synthase (MPnS) is found in abundant marine microbes and may produce the compound that is converted to methane.
A new tool advances understanding of ocean chemistry and suggests that microbial metabolisms shape the ocean's balance. The model simulates impact on North Atlantic chemistry and predicts genes and transcription throughout the ocean.
Tropical Cyclone Ockhi formed in the Northern Indian Ocean after powerful thunderstorms wrapped into its center from the north. The storm was predicted to move northwest and eventually make landfall near Mumbai on Dec. 5.
Tropical Storm Rina strengthened to tropical storm status on Nov. 6 with increased cloud coverage and deep convection near its center. The storm is forecasted to accelerate toward the north-northeast by Wednesday night.
Tropical Depression Nineteen formed in the Central Atlantic Ocean despite wind shear conditions, according to NASA's Terra satellite imagery. The National Hurricane Center expects it to strengthen and potentially become a tropical storm later on Monday.
Tropical Storm Philippe developed from Tropical Depression 18, moving northeast through the Gulf of Mexico to Florida's east coast before merging with a frontal system. The remnants of Philippe dissipated over the western Atlantic Ocean, losing tropical characteristics.
Extra-Tropical Storm Saola transitioned from a tropical storm and tracked southeast of Japan, moving north of Hokkaido on October 30. The storm was east of Japan's northern island of Hokkaido, with clouds stretching into the Sea of Okhotsk and northwest Pacific Ocean.
Tropical Depression 27W continues to struggle south of Guam, with vertical wind shear pushing clouds and thunderstorms away from its center. The depression is expected to consolidate and strengthen as it moves into warmer waters.
The Suomi NPP satellite captured an image of Typhoon Lan with a well-formed, circular eye surrounded by powerful thunderstorms. The storm had maximum sustained winds near 100 knots and is forecast to make landfall south of Tokyo as a typhoon on Oct. 22.
A new tropical depression has formed in the Northwestern Pacific Ocean, hours after a neighboring system dissipated. The storm is currently disorganized and moving northwest towards Guam, with maximum sustained winds near 35 knots.
Researchers found over 100 air samples from tropical and subtropical regions revealing an average of 67,000 prokaryotes per cubic meter of sampled air over the oceans compared to 190,000 bacteria per cubic meter of air over land.
Tropical Storm Ophelia was observed as a comma-like shape in NASA's infrared imagery, with cold cloud tops reaching -63°C. The storm is moving eastward at 3 mph and is expected to strengthen into a hurricane within the next 12 hours.
Tropical Storm Ophelia developed on Oct. 9, strengthening into a tropical storm with strong thunderstorms and an eye-like feature. NASA forecasts gradual strengthening over the next 48 hours, with Ophelia expected to become a hurricane by Thursday.
W. Stanley Wilson, founder of NASA's Oceanography from Space Program and organizer of the international coalition supporting the Argo observing system, is recognized for his key role in these initiatives. He will be formally recognized on February 13, 2018, during a ceremony at the Ocean Sciences Meeting.
Scientists discovered that plastic marine debris was transporting non-native species from Japan to North America and Hawaii after the 2011 tsunami. This phenomenon suggests a significant increase in the role of marine debris as a vector for invasive species due to climate change and coastal urbanization.
A study by MIT professor Daniel Rothman suggests that a sixth mass extinction may occur if the world's oceans hold enough carbon to destabilize the system. By 2100, human activities are estimated to add about 310 gigatons of carbon to the oceans, potentially tipping the planet into unknown territory.
Researchers found that changes in the Earth's crust led to the accumulation of oxygen in the atmosphere around 2.4 billion years ago. This period, known as the Great Oxidation Event, paved the way for the evolution of complex life on Earth.
Tropical Depression 15E is experiencing vertical wind shear due to the GOES-West satellite's observations. The National Hurricane Center expects no change in strength, but a chance for it to become a tropical storm in the coming days.
Typhoon Talim's satellite imagery revealed a large tail-like structure extending from its center to the southeast. The storm was moving west-northwest with maximum sustained winds near 65 knots, intensification expected as it approaches Taiwan.