Articles tagged with Oceans
Researchers have discovered that dust infiltration into the South Pacific Ocean was 2-3 times higher during ice ages than in warm phases. This increased dust supply stimulated biological production and increased the ocean's capacity to bind carbon, leading to a cooling effect on Earth.
Tropical Cyclone Deliwe forms in the Mozambique Channel and Southern Indian Ocean after a tropical depression developed on January 16. Forecasters predict it will move southwest and then curve northwest due to high pressure system changes.
Tropical Cyclone Colin is becoming an extra-tropical system in the Southern Pacific Ocean, with NASA's Aqua satellite capturing an image of the transitioning storm. The storm had maximum sustained winds near 35 knots/40 mph/62 kph and was weakening.
Tropical Cyclone Colin is experiencing heavy rainfall, with TRMM satellite data showing rates of up to 2 inches per hour. The storm is moving south-southeast towards cooler sea surface temperatures, which will cause it to weaken.
Tropical Cyclone Bruce's eye showed distinct features on December 21, but became cloud-filled two days later. The cyclone weakened rapidly due to wind shear and was expected to turn extra-tropical by December 25.
Tropical Cyclone Amara is affecting Rodrigues Island in the Southern Indian Ocean, bringing hurricane-force winds and heavy rains. NASA's Terra satellite captured an image showing the storm's eye was more cloudless than the day before.
Tropical Cyclone Bruce maintained hurricane-force winds and a visible eye in the Southern Indian Ocean. The storm's convection strengthened around the eyewall, fueled by high clouds and thunderstorms.
NASA's Aqua satellite captured Tropical Cyclone Bruce's developing eye in a visible image, showing a consolidating low-level circulation center and improved thunderstorm banding. The cyclone strengthened to a tropical storm with maximum sustained winds of 57.5 mph, expected to intensify over the next couple of days.
The €3.6 million CACHE programme will study the effects of ocean warming and acidification on shellfish populations, crucial for the European fishing economy and biodiversity. The project will also explore biomimicry and carbon sequestration opportunities.
A new study by Thomas Frölicher suggests that the Earth's atmosphere could continue to warm for hundreds of years after a complete stop of CO2 emissions, leading to a 25% increase in global temperature. The ESM2M climate model reveals that regional ocean heat uptake is crucial in understanding the effects of climate change.
A Princeton University-led study found that carbon dioxide in the atmosphere could continue to warm the planet for hundreds of years after a sudden halt in emissions. The researchers simulated an abrupt stop in carbon emissions and found that the planet warmed by 0.37 degrees Celsius over 400 years.
Tropical Storm Melissa formed on Nov 18 and underwent rapid transformations under NOAA's GOES-East satellite imaging. After becoming post-tropical later today, the National Hurricane Center forecasts gradual weakening over the next two days.
Tropical Cyclone 04B is a rapidly intensifying storm with moderate rainfall and broken bands of thunderstorms. The cyclone is expected to track slowly westward before making landfall in southern India, where it may bring significant impacts.
Ex-tropical storm 30W has re-developed into a low-pressure area near Chennai, India, with heavy rainfall and thunderstorms expected to make landfall within the next two days. The system is moving west-southwest at 9 knots per hour, bringing up to 10 inches of rain to northern Tamil Nadu and southern Andhra Pradesh.
Ex-Tropical Depression 30W is attempting to re-form in the Indian Ocean after dissipating over Nov. 8-10. The storm's re-generation is considered medium-probability for the next few days, with slow westward movement predicted.
Former Tropical Depression 30W has re-formed in the Andaman Sea, with a medium chance of redevelopment by Nov 9-10, threatening India and surrounding nations.
The University of Houston will be part of a new Ocean Energy Safety Institute that aims to provide reliable knowledge about critical safety issues. The institute will develop programs of research, technical assistance, and education to support ultra-deep exploration and production.
Using X-ray analysis, scientists have studied molten basalt at extreme pressure conditions, revealing a stiffer and denser form of the magma. The findings support the concept of two magma oceans in the early Earth's mantle, separated by a crystalline layer.
Research led by ANU Vice-Chancellor Professor Ian Young uses satellite data to track wave decay and develop a mathematical formula for predicting swell action. The study provides comprehensive data on the rate of decay, which will increase the accuracy of wave predictions for industries such as shipping and surfing.
The first tropical cyclone of the Southern Indian Ocean season formed on October 27 and dissipated by October 28. The storm was characterized by an elongated low-level circulation center battling wind shear.
NASA's GOES-East satellite image captured the oval-shaped remnants of Tropical Storm Lorenzo east of a frontal system. The remnant low-pressure area is moving northeast at 10 mph and has a 20% chance to redevelop before being consumed by the approaching cold front.
Super-typhoon Lekima is shifting its trajectory from northwesterly to northeasterly due to mid-latitude westerly winds and a trough. The storm is expected to weaken as it becomes extra-tropical, with cooler sea surface temperatures and increasing wind shear.
Tropical Storm Lorenzo formed in the Atlantic Ocean on Oct. 21, strengthening into a tropical storm just six hours later. NASA's Aqua satellite captured images of the depression before it became a storm, while NOAA's GOES satellite showed its progression and expected weakening trend.
Tropical Storm Lekima developed and strengthened into a tropical storm in the Northwestern Pacific Ocean. It is forecasted to reach typhoon strength by October 24 and approach Iwo To island on the same day.
Typhoon Francisco is turning northwest, posing a threat to Guam with sustained tropical storm force winds expected, causing minor damage to poorly constructed homes and isolated power outages. The storm has maximum sustained winds near 85 knots and is located southwest of Guam.
Tropical Storm Priscilla formed and rapidly weakened over 3 days in the eastern Pacific, skipping the depression phase. Its maximum sustained winds dropped to 35 mph/55 kph within a day of formation, marking one of the shortest-lived tropical storms of the season.
Tropical Depression 22W is taking a different route than Tropical Depression 21W and heading northwest towards Koror, Palau. Favorable environmental conditions will allow the depression to strengthen into a typhoon over the next two days.
Typhoon Pabuk strengthened as it moved north through the northwestern Pacific Ocean, with NASA's Aqua satellite capturing an infrared image that showed powerful thunderstorms east of its center. The storm was expected to turn northeast and bring rain and gusty winds to eastern Japan.
Researchers analyzed Europa's cracks to determine if the moon spun around a tilted axis at some point. The analysis suggests that a small tilt of about one degree occurred in the past, which could explain the orientation of the long cracks. This finding may also affect estimates of Europa's ocean age and heat generation.
Tropical Storm Ingrid has formed in the Gulf of Mexico, bringing heavy rainfall and flash flooding to eastern Mexico. The storm is expected to move slowly along the coast, with maximum sustained winds near 45 mph and 10-15 inches of rain forecasted over a large part of eastern Mexico.
Hurricane Humberto is expected to weaken due to wind shear and cooler waters. NASA's Terra satellite captured a visible image showing the storm's well-organized structure and cloud-filled eye.
Tropical Depression Juliette weakened into a post-tropical cyclone, with its remnants producing showers over Baja California. Two low-pressure areas developed in the Eastern Pacific, one with a 20% chance of becoming a tropical depression and another with a 10% chance.
Tropical cyclones rely on hundreds of thunderstorms with coldest cloud top temperatures to produce heavy rain. Infrared imagery from NASA's Aqua satellite revealed that wind shear was pushing storm systems away from the center of Tropical Storm Kong-Rey.
A third tropical depression has formed in the Central Pacific Ocean, with Tropical Depression 03C (TD03C) moving west-northwest at 16 mpg/26 kph. The system is expected to cross the International Dateline, falling under the forecast authority of the Joint Typhoon Warning Center.
Tropical Depression 13W formed on Aug 17 and dissipated less than a day later, with NASA capturing its final image via the MODIS instrument aboard Aqua satellite. The storm's weakened state allowed nearby Tropical Storm Trami to take over, leading to the depression's demise.
Typhoon Pewa strengthened into a powerful storm after passing over NASA's Aqua satellite, revealing a small eye surrounded by strong thunderstorms. The Joint Typhoon Warning Center predicts Pewa will continue to intensify as it moves northwest, passing far to the northeast of Wake Island on Aug. 21 and 22.
A new paper by Dr Thomas Ezard uses the fossils of microscopic aquatic creatures called planktonic foraminifera to study speciation. The research highlights the importance of using fossil and molecular evidence in understanding evolution.
Tropical Depression 11W is organizing and strengthening in the western North Pacific Ocean, with NASA's Aqua satellite capturing an infrared image of the system. Cloud top temperatures indicate strong storms, suggesting heavy rainfall rates when the depression strengthens into a tropical storm.
A global meta-analysis reveals that climate change is driving changes in marine species' breeding, feeding, and migration timing, as well as shifting their geographic distribution toward the poles. The study found that warming oceans are causing marine species to move at an average of 72 kilometers per decade.
Researchers at GEOMAR found that about one third of oxygen supply in tropical oxygen minimum zones is provided by vertical turbulent mixing, surprising previous assumptions. High-precision measurements confirmed this finding, using a tracer and profiling current meters.
Tropical Depression Flossie's remnants brought strong winds to Hawaii, causing power outages on the islands of Maui and Molokai. The storm's low pressure area was centered near Honolulu, Hawaii, about 140 miles west-northwest.
Tropical Depression 4 (TD4) formed on July 24 in the Eastern Atlantic Ocean, with maximum sustained winds near 35 mph. The storm is moving west-northwest at 20 mph and has a minimum central pressure of 1008 millibars.
The global atlas, MAREDAT, provides unprecedented insights into oceanic plankton diversity and biomass across 500,000 locations worldwide. It reveals surprising findings, such as zooplankton having more biomass than phytoplankton in some regions.
Tropical Storm Chantal is expected to bring significant rainfall to the Leeward and Windward islands with isolated totals reaching up to 6 inches. The storm developed from an unseasonally strong easterly wave that moved off the African coast on July 3.
Tropical Storm Soulik has become more organized and is expected to intensify rapidly, potentially reaching typhoon strength by July 9. The storm's eastern quadrant covered the Marianas Islands in NASA's Aqua satellite images, showing a brilliant visible image of the storm's center near the northern islands.
A new study reveals that healthy Red Sea corals harbor bacterial communities deep within their tissues, including the previously unknown species Endozoicomonas. This symbiotic relationship is believed to aid the coral's nutrient recycling, contributing to its overall health and survival.
Two tropical cyclones, Tropical Depression Dalila and Tropical Storm Erick, are affecting the Eastern Pacific Ocean, with Dalila weakening due to dry air and wind shear, while Erick is strengthening and poses a threat to Mexico's southwestern coast. Residents in the warning area can expect heavy rainfall and rough surf.
A tropical depression formed in the western Caribbean Sea on June 17, with maximum sustained winds near 35 mph. The center of the depression will move inland over southern Belize before potentially emerging into the Bay of Campeche, where it could strengthen into Tropical Storm Barry.
Researchers found spindle-shaped microfossils in 3 billion-year-old rocks, indicating the presence of planktonic autotrophs. The findings suggest that oceans had life for an extended period, potentially leading to rapid evolution of diverse life forms.
The first tropical depression of the Eastern Pacific hurricane season formed on May 15, according to NASA data. Tropical Depression One-E was detected by the Aqua satellite and showed signs of strong thunderstorms with heavy rainfall potential.
Tropical Cyclone Jamala's remnants are visible in NASA satellite images. The storm broke apart due to harsh atmospheric conditions, leaving behind a weaker system.
Tropical Cyclone Mahasen is projected to track north through the Bay of Bengal and make landfall later this week. The storm's maximum sustained winds are expected to increase over the next couple of days, reaching hurricane force by May 15.
Tropical Cyclone Jamala and newborn Tropical Cyclone 01B are both intensifying in the Indian Ocean, with Jamala forecast to reach hurricane strength and make landfall on May 14 or 15 in northwestern Burma and eastern Bangladesh.
Professor Jack Barth recognized for outstanding contributions to continental shelf oceanography and community service. The Oceanography Society's TOS Fellows program honors individuals who have made significant contributions to the field.
Researchers identified a 1,500km-long fragment of an ancient continent called Mauritia beneath the Indian Ocean. The micro-continent contains rocks dated up to 2 billion years old, challenging the formation timeline of the ocean.
Researchers warn of catastrophic loss as nesting sites show 78% decline over 27 years. Conservation efforts face challenges due to feral pig predation and climate change.
Researchers found evidence of a previously unknown micro-continent, Mauritia, beneath the Indian Ocean using dating methods and plate tectonics analysis. The discovery suggests that such micro-continents may occur more frequently than previously thought and were carried by lava to their current location.
Tropical Storm Haruna formed on Feb. 19 after four days of organization, with maximum sustained winds near 35 knots. NASA satellites provided visible and infrared imagery that helped forecasters track the system's development.
Experts from Spain have discovered a new genus of crustacean, Triodonthea, and five new species within the Lauriea genus in the Pacific and Indian Oceans. These species are genetically distinct but morphologically similar, with some being endemic to specific regions.
A genetic analysis reveals that North Atlantic humpback whales once existed in numbers of over 100,000 individuals, with an estimated range of 45,000 to 235,000. The study's findings provide a more accurate estimate than previous catch data and have significant implications for determining the recovery threshold of the species.