Articles tagged with Oceans
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.
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.
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.
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 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.
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.
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.
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.
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.
Scientists have discovered a long-running conflict between SAR11 bacteria and viruses that constantly kill them off. The ongoing battle affects the planet's carbon cycle and has significant implications for ocean biology.
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.
Tropical Cyclone 15S formed from System 92S on Feb. 9 and intensified into a tropical storm on Feb. 11. The storm strengthened to hurricane force within two days, but is expected to weaken due to wind shear and cooler waters.
Researchers analyzed lake sediment to reconstruct climate patterns in Nicaragua during the Medieval Climate Anomaly and Little Ice Age. The study found that factors currently producing drier climates resulted in wetter conditions a few hundred years ago.
A NASA TRMM satellite found an unusually tall storm-cell in Cyclone Evan's eyewall, extending 17 km above the ocean surface. This rare feature was previously thought to occur only over land, but continuous observations have revealed its existence over the ocean.
A new study calculates the impact of ocean iron fertilization on carbon sequestration, finding that it is unlikely to be an effective method for reducing greenhouse gas levels. The study estimates a net sequestration rate of just 10 tonnes of carbon per square kilometer, making it a costly and inefficient solution.
A new system developed by NCAR combines satellite data and computer weather models to predict potentially dangerous atmospheric conditions. The system provides pilots with critical information about storms, turbulence, and lightning, helping to improve flight safety over remote ocean regions.
A prospectus published in the Philosophical Transactions of the Royal Society A outlines key issues and research directions for UK marine science over the next two decades. The publication provides a vision for each field, addressing scientific challenges and technological advances necessary to meet them.
Typhoon Bopha re-intensified in the South China Sea after making a loop, with coldest cloud tops indicating strongest storms. The typhoon's eye was about 11 nautical miles in diameter and maximum sustained winds reached 110 knots.
The Gordon and Betty Moore Foundation is funding 16 top scientists for pioneering research in marine microbial ecology, exploring interactions between trillions of microscopic organisms and their environment. This funding aims to make new discoveries and advance our understanding of ocean ecosystems and climate change.
The NASA HS3 mission has ended its 2012 campaign with a final data-collection flight in the North Pacific Ocean. The Global Hawk aircraft tested three new hurricane-tracking instruments: HIWRAP, HIRAD, and HAMSR, which will be used in next year's campaign to study hurricanes and severe storms.
Tropical Storm Bopha intensifies in western North Pacific, developing a distinct tail-like band of strong thunderstorms. The storm is expected to become a typhoon by Thursday afternoon, Nov. 29.
A comprehensive register of marine species reveals approximately 226,000 identified species and up to 65,000 awaiting description. This comprehensive inventory provides a foundation for conservation efforts and estimates of extinction rates.
Tropical Storm Son-tinh has spread its clouds and showers over the Philippines, according to NASA satellite imagery. The storm's center was moving through the central Philippines, with strongest thunderstorms east of the center over the Philippine Sea.
Tropical Storm Tony is a small, compact storm traveling through the central Atlantic Ocean. The storm's maximum sustained winds are near 45 mph, with some strengthening expected before gradual weakening.
A team of researchers has found evidence for a dramatic rise in early oxygen levels around 2.3 billion years ago, followed by an equally impressive fall. This drop in oxygen may have ushered in low-oxygen concentrations that set the stage for the evolution of eukaryotic organisms and eventually animals.
Tropical Storm Maria is weakening due to increased wind shear and cool ocean temperatures, but will continue moving north-northeast over open waters. The storm's circulation is consolidating, with tightly curved bands of thunderstorms around the center.
Tropical Storm Prapiroon was found to have intense rain bands dropping rain at a rate of about 30-40 mm/hour in the southern quadrant. The storm is expected to move northeast on Oct. 17 and become extra-tropical thereafter.
Hurricane Paul is forecast to make landfall in Baja California, bringing heavy rainfall and hurricane-force winds. The storm's center is expected to pass near Mexico's Socorro Island, which has already been battered by the hurricane.
Tropical Storm Rafael is expected to bring heavy rainfall and flash flooding to the northern Leeward Islands, with isolated totals reaching up to 12 inches. The storm is also forecasted to impact Bermuda late on Tuesday, Oct. 16, prompting a Tropical Storm Watch for the island.
Hurricane Paul has strengthened into a hurricane with maximum sustained winds near 90 mph, posing a threat to Baja California with heavy rainfall expected between 2-4 inches. The National Hurricane Center warns of dangerous surf and tropical storm conditions along the coast by Oct 16.
The first tropical cyclone of the Southern Indian Ocean season has been spotted by NASA's TRMM satellite, with maximum sustained winds near 35 knots. The system is expected to continue intensifying over the next three days before wind shear increases.
Typhoon Prapiroon brought light-to-moderate rainfall throughout, with a small area of heavy rain near the storm's center. The satellite detected rain rates between .78 to 1.57 inches/20 to 40 mm per hour in this region.
Tropical Storm Olivia formed on Oct 6, 2012, near Baja California, but weakened due to adverse atmospheric conditions. The storm dissipated as a remnant low-pressure system on Oct 9, with maximum sustained winds of 35 mph.
Typhoon Prapiroon intensified into a typhoon with maximum sustained winds near 75 mph on Oct. 9, according to NASA satellite imagery. The storm's eye feature was spotted using microwave imagery, indicating it is expected to continue intensifying over the next several days.
A Duke University-led study predicts that high-pressure systems over oceans will intensify, contributing to droughts and extreme summer rainfall in the northern hemisphere. The North Atlantic and Pacific subtropical highs are expected to strengthen due to increasing greenhouse-gas concentrations.
The 15th Atlantic tropical depression, TD15, has formed in the central Atlantic Ocean, moving northwest at 15mph. It is expected to strengthen into Tropical Storm Oscar and move north and northeast before weakening due to hostile atmospheric conditions.