Articles tagged with Oceanography
Sub-tropical storm 11S, once a tropical cyclone, continues to swirl in the Southern Indian Ocean with asymmetric structure and baroclinic dynamic support. The disturbance is expected to further strengthen as it moves southward, transitioning into an extra-tropical system.
Scientists at Tokyo Institute of Technology have identified the key enzymes responsible for oil synthesis in microalgae. The research reveals that four lysophosphatidic acid acyltransferases (LPATs) play a crucial role in the formation and growth of lipid droplets, where TAG biosynthesis occurs.
Researchers at Harvard SEAS use kirigami cuts to create 3D structures from flat sheets by stretching and buckling material. The pop-up pattern and mechanical properties can be controlled by varying the cut orientation.
Researchers from the Smithsonian and French Muséum national d'Histoire naturelle describe a complex, flexible head joint among fishes known to science. The discovery sheds light on the evolution of barbeled dragonfishes, a group of deep-sea predatory fishes with specialized traits for hunting.
Researchers found that Lybia boxer crabs acquire sea anemones by stealing from each other and splitting them into two identical clones. The study, published in PeerJ, involved over 100 crabs observed in the wild and laboratory experiments.
Tropical Cyclone 3S formed after heavy rainfall in a tropical low pressure system consolidated and strengthened over northwestern Australia. The Joint Typhoon Warning Center confirmed the cyclone's development on January 27.
Research findings from LSU and other institutions reveal devastating effects of the oil spill on coastal habitats and wildlife. The Gulf of Mexico Research Initiative has funded numerous studies to better understand future large-scale perturbations and develop response strategies.
Tropical Storm 3B is consolidating into a defined low-level circulation center, with strong thunderstorms wrapping tightly curved banding around the storm. The Joint Typhoon Warning Center predicts the storm will strengthen and move west across the Bay of Bengal, making landfall north of Chennai, India on October 27.
Tropical Depression 14W was absorbed by System 92W, with maximum sustained winds near 23 mph, moving north-northeast at 33.3 mph. The system is located near Iwo To Island, Japan, and will track northwestward
Researchers discovered that the shape and dimensions of graphene nano-bubbles provide information on its elastic strength and interaction with substrates. The balloons can be created intentionally to make tiny pressure machines capable of withstanding enormous pressures.
Tropical Depression 6 formed in the far eastern North Atlantic Ocean on August 16, 2016, with NASA and NOAA satellites providing key data. The depression showed signs of organization, with strong rainfall bands and intense showers dropping rain at a rate of over 155 mm/h.
Researchers at Scripps Institution of Oceanography found that ominous background music in shark documentaries hinders conservation efforts by negatively rating sharks. The study suggests documentary filmmakers should consider the soundtrack's impact on viewers' interpretation of educational content.
Tropical Storm Darby brought extremely heavy rainfall to northern Oahu, with estimated totals reaching up to 480 mm. The storm's track led to flash flooding and lightning damage on the island of Oahu.
Tropical Storm Mirinae made landfall over Vietnam's northeast coast, with surface winds reaching 55.3 mph. The Joint Typhoon Warning Center reported the storm's maximum sustained winds were near 45 knots (51.7 mph/83.3 kph).
Scientists studied Tropical Cyclone Abela using satellite data, which provided insights into its rainfall rates and cloud heights. The cyclone's low-level center was exposed due to wind shear, causing convective storms to form southeast of the center.
Hurricane Celia is currently in the Eastern Pacific Ocean but will issue warnings once it passes west of 140 degrees west longitude. NASA satellites capture images showing a cloud-filled eye and powerful thunderstorms wrapping around the low-level center.
Researchers from the University of Hawaii at Manoa used a statistical technique to extract large-scale vertical motions of the local crust from GPS data. The study found nearly 125 mile-wide lobes of uplift and subsidence straddling the fault system.
A study on live-bearing sea anemones found that offspring transition from using egg yolks to pre-natal and post-natal parental feeding during development. The researchers also discovered a possible link between size variation within the clutch and parent-offspring conflicts or sibling rivalry.
A new study from Harvard predicts that regions of the US could experience up to nine additional days of unhealthy ozone levels per year by 2050. Global climate change is expected to exacerbate heat waves and increase ozone episodes.
NASA-NOAA's Suomi NPP satellite imaged the remnant low pressure area, with poorly-defined center circulation and clouds pushed southeast. The storm weakened rapidly due to strong vertical wind shear, ultimately deteriorating into a low-level trough by March 30.
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
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.
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.
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.
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.
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.
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.
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 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.
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.
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.
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.
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.