Articles tagged with Seawater
Researchers at the University of Delaware have successfully programmed underwater robots to independently analyze data and trigger new missions based on real-time information. This technology has the potential to reveal new details about prey movement and behavior in the ocean.
Researchers discovered intense deep-ocean turbulence in the equatorial Pacific that plays a crucial role in driving global ocean circulation. The study, published online in Geophysical Research Letters, suggests that this mixing can be simulated using computer models to improve future climate forecasts.
A study published in Scientific Reports reveals that a warm ocean surface water prevailed during the last ice age, causing gradual climate changes. The Nordic seas, just south of Iceland, followed an Antarctic pattern of warming and cooling, contradicting previous 'seesaw' hypothesis.
Researchers discovered that sea snails use the same technique as flying insects to swim, beating their wings in a figure-of-eight pattern to generate lift. The team, led by David Murphy, used high-speed cameras and advanced analysis to visualize fluid movements around the animals.
Geologists have discovered evidence to explain the origin of the Wilcox Formation, one of Mexico's most productive oil plays, and support for a theory that water levels in the Gulf of Mexico dropped dramatically as it was separated from the world's oceans. The study also offers insight into extreme warming around 55.8 million years ago.
Biologists from Moscow State University found new luminescent creatures in the Red Sea, with unique fluorescent patterns that can help identify different species. The study published in PLOS ONE reveals insights into the role of glow in attracting prey and exploring symbiotic relationships.
Researchers found that the Greenland ice sheet is releasing a significant amount of phosphorus into the Arctic Ocean, with annual input equal to some of the world's largest rivers. The nutrient could stimulate growth of plankton at the base of the ocean food web, impacting birds, fish, and marine mammals higher up the chain.
New research reveals Greenland's ice sheet is releasing 400,000 metric tons of phosphorus annually, enriching Arctic Ocean waters and potentially stimulating growth of marine food chain. The nutrient could impact birds, fish, and marine mammals higher up the food chain.
Researchers at the University of Bonn used satellite data to find that ocean warming expansion contributed an average of 1.4 millimeters per year to sea level rise, more than double the previous estimate of 0.7-1.0 millimeters per year. This could lead to significantly increased risks of storm surges and coastal flooding.
A new study finds that the influx of freshwater from Greenland is 'freshening' the North Atlantic Ocean and could disrupt the Atlantic Meridional Overturning Circulation (AMOC), an important component of global ocean circulation. This could lead to changes in climate, including cooler winters and regional sea level increases.
Researchers at the University of New South Wales found that high CO2 concentrations can cause fish to become disoriented and lose their sense of direction. The study predicts that by 2100, up to half of the world's surface oceans will experience episodes of hypercapnia, with devastating effects on marine ecosystems.
Researchers predict the spread of non-native regal damselfish in southern Gulf of Mexico, threatening local ecosystems. The tiny fish's reproductive strategies and oceanic water flow patterns are key factors in its potential impact.
A study found that leopard sharks with impaired smell took longer and more tortuous paths than those with intact smell during ocean navigation. This suggests that olfaction plays a significant role in guiding these fish through the ocean.
Researchers have developed a new technique to accurately measure the surface gravity of distant stars, allowing for more precise analysis of exoplanet sizes and habitability. This breakthrough will play a crucial role in the study of planets beyond our Solar System.
New research from Florida Institute of Technology scientists suggests that moderate levels of turbidity can lower stress on corals by shading them from high light. This could be a refuge for coral species in a warmer climate.
Researchers at Oak Ridge National Laboratory have developed a new ultra-high-resolution technique to study polymer fibers trapping uranium in seawater. The findings suggest that traditional approaches to understanding the binding of uranium by polymer fibers do not accurately represent its behavior in bulk materials.
Tropical Storm Melor weakened as it moved through the Philippines, with NASA's Aqua satellite capturing an image of the storm on Dec. 16. The storm's center was difficult to pinpoint due to strong wind shear, which affected its rotation and movement.
A new study by geologist Christoph Korte elucidated a previously unknown major temperature change during the Jurassic period. The researchers found that changes in ocean currents, particularly the uplift of the North Sea Dome, led to reduced heat transport to the Arctic region and altered local fauna distribution.
Researchers developed a detailed chemical zonation model for oxygen-deficient oceans prior to 520 million years ago. The model suggests that early life was influenced by the heterogeneous and dynamic chemical conditions of these ancient oceans.
A team of international experts found that a large-scale volcanic event restricted ocean flow, leading to an extended Ice Age in the Jurassic Period. This cooling occurred despite the period's warm conditions, contradicting previous assumptions about CO2-driven climate change.
The ocean microbiome is a vast biological network that regulates global systems, including energy consumption and respiration. Microbes are responsible for virtually all photosynthesis in the ocean and cycle essential nutrients and trace elements.
Scientists at Woods Hole Oceanographic Institution report detecting increased radiation off the US West Coast due to Fukushima, with levels 50% higher than previous samples and still within safe drinking water limits. The study provides valuable insights into ocean currents and mixing, using radioactive isotopes as markers.
A study found that coccolithophore abundance has increased by an order of magnitude since the 1960s in the North Atlantic, contrary to predictions. This unexpected finding highlights the complex response of marine ecosystems to climate change.
Tropical Cyclone Annabelle was characterized by strong winds and high sea surface temperatures, but adverse conditions led to its demise. The storm's maximum sustained winds decreased to 35 knots on Nov. 24, indicating a lack of lift in the system.
Researchers have found distinctive rocks formed when the Pacific plate changed direction and plunged under the Philippine Sea Plate 50 million years ago. The discovery sheds new light on the formation of copper and gold deposits, as well as the mechanism behind massive earthquakes and volcanoes.
Researchers at the Alfred Wegener Institute found that a 15-year observation series reveals how sensitive arctic marine ecosystems are to change. The study indicates that even a short-term influx of warm water can fundamentally impact local symbiotic communities, leading to changes in deep-sea life.
The Arctic Ocean is a significant source of atmospheric methane due to interactions between the atmosphere, sea ice, and ocean. The study found that sea ice can be a source of methane, releasing it into the atmosphere during melting and freezing processes.
A glacier in northeast Greenland is losing mass at a rate of 5 billion tons per year and breaking up into the North Atlantic Ocean. The glacier's rapid retreat is attributed to ocean warming and decades of increasing air temperatures, which are substantially raising global sea levels.
A team of University of Illinois engineers has created a new, energy-efficient material for desalination by exploiting the unique properties of molybdenum disulfide (MoS2) nanopores. The material can filter through up to 70% more water than graphene membranes, making it a promising solution to the global water crisis.
A team of researchers led by Dr. Christian Ohneiser found that a growing Antarctic ice sheet caused the Mediterranean Sea to evaporate and dry up around 5.6 million years ago. The study revealed an uneven effect on global sea levels, with the continent's ice growth resulting in complex interplay between gravitational and rotational eff...
Scientists at WashU Medicine have discovered an enzyme that enables some fish and amphibians to supercharge their vision to detect red and infrared light, aiding navigation in murky waters. This discovery could lead to advances in biomedical research, particularly optogenetics, where light is used to control brain activity.
A new study predicts that parts of the Arctic Ocean will see at least 60 days a year of open water by the 2050s. Researchers used climate simulations to investigate local impacts of open water expansion patterns in the Arctic, finding that many sites will have more than 100 additional days of open water by then.
A historian examines how Saudi Arabia's quest for fresh drinking water led to the discovery of oil and highlights the country's precarious relationship between oil and water. The expert argues that the U.S. must consider the environmental impact of desalination, a technology used to produce drinking water.
A new report by the National Science Foundation links rapid warming of ocean waters to the collapse of New England's cod fishery. The study found that increasing water temperatures reduced cod production and increased mortality of young fish, leading to a decline in sustainable stock levels.
The Nordic Seas started cooling towards modern temperatures in the early Pliocene, 5.3 to 2.6 million years ago. This occurred half a million years before the global oceans cooled, according to a new study published in Nature Communications.
Typhoon Champi's maximum sustained winds dropped to 80 knots from 90 knots as it weakened, with rough seas and wave heights reaching 9.1 meters.
Researchers found that coastal sea ice formation in the North Pacific plays a key role in driving deep ocean circulation, influencing regional and global climate patterns. The study's findings could improve global climate models by capturing small-scale processes that are currently missing.
A small freshwater algae has evolved to live in harsh seawater, adapting to high salt levels through genetic and epigenetic changes. Researchers tracked the transition of successive generations in a lab setting, discovering two stages of adaptation that enabled the plant to thrive in seawater.
Ocean acidification is affecting global marine ecosystems, with the Arctic and Antarctic oceans being particularly vulnerable. The study reveals that waters with lower aragonite saturation state are more corrosive to shellfish and coral species.
Tropical Cyclone 03A formed on October 10 and weakened to a remnant low pressure area by October 12. NASA's Terra satellite captured visible images of the storm as it developed.
Tropical storm Choi-Wan is intensifying with heavy rainmaking storms and cold cloud tops reaching -63F/-53C. The storm is forecast to strengthen into a typhoon before turning north.
Scientists have discovered a previously unknown process of warm Gulf Stream water and continental shelf exchange. Researchers also explored the effects of Saturn's magnetospheric dynamics on Titan's ionosphere.
Scientists have discovered a previously unknown process where warm Gulf Stream water and colder waters of the continental shelf exchange, influencing shelf circulation, biogeochemistry, and fisheries. The discovery provides new insights into the complex interactions between these two water masses.
Typhoon Dujuan brought extreme rainfall to Taiwan, with heaviest totals over 275 mm along the coast south of landfall. The typhoon caused hundreds of injuries and at least three deaths in Taiwan.
A new study from the University of Exeter solves a long-standing climate science mystery by explaining how changes in ocean circulation affect carbon storage. The researchers found that warmer water upwelling in the Southern Ocean helps store more CO2, contributing to glacial cycles.
Researchers used radiocarbon in deep-sea fossil corals to reconstruct CO2 levels and ocean circulation during the last deglaciation. The study found two massive transient events that flushed out respired carbon, causing rapid CO2 rise and abrupt warming in the North Atlantic region.
NOAA has awarded grants to three companies to develop ocean acidification-resistant abalone strains, genetics-based selective breeding protocols for mussels, and sustainable multi-species marine algal aquaculture in Maine. These projects aim to tackle significant obstacles in US aquaculture and explore novel solutions.
Scientists have found that local structures in liquid water persist for longer than a picosecond, contradicting the general perception of water as a solvent. This discovery was made using ultrafast vibrational spectroscopies and has significant implications for understanding chemical and biological reactions on Earth.
Research from the University of East Anglia reveals that the Southern Ocean's carbon sink has reinvigorated after a decade of stagnant absorption. The team attributes this change to shifts in wind patterns and temperature, which have led to increased upwelling of deep waters containing higher concentrations of dissolved CO2.
The Southern Ocean's carbon sink has revived after 'saturating' since 2005 due to changes in weather patterns. The reinvigoration is attributed to variations in wind and temperature, enabling the ocean to absorb more CO2 from the atmosphere.
A recent study by the Pew Research Center reveals significant differences in Americans' understanding of various science topics, with educational level being a major factor. Adults with higher education tend to perform better on science-related questions, while gender also plays a role, with men generally outperforming women.
Researchers found that elephant seals shed significant amounts of mercury during molting, resulting in high concentrations of the toxic metal in coastal waters. The study reveals a previously unrecognized source of mercury contamination in coastal waters, highlighting the need for further monitoring and mitigation efforts.
Tropical Storm Ignacio is weakening as it moves over colder Pacific waters, with the Global Precipitation Measurement mission analyzing its precipitation patterns. The storm has decreased in intensity from a category four hurricane to a strong tropical storm, with maximum sustained winds near 75 mph.
Typhoon Goni is weakening due to increasing vertical wind shear and interaction with southern Japan's land. Forecasters predict the storm will make landfall in Kyushu, Japan on August 25 before moving north through the Sea of Japan.
Typhoon Atsani intensified with heavy rainfall rates exceeding 90 mm/h, reaching 16.8 km in height. NASA's GPM analysis predicts it will become a super-typhoon by August 20, posing a threat to the Pacific Ocean.
A study by University College London found that warm, stagnant water from the deep Arctic Ocean and Nordic Seas contributed to the end of the last Ice Age. The researchers used proxy data to reconstruct past ocean circulation changes, which showed a warmer deep Arctic Mediterranean during glacial times.
Researchers at The University of Texas at Austin pioneered a new technique to track subglacial discharge in tidewater glaciers. This method is essential for understanding how glaciers are melting and changing due to climate shifts.
A UGA researcher is urging the academic community, federal responders, and the oil and gas industry to collect more baseline data in the world's oceans to establish critical environmental baselines. This data is essential for documenting anthropogenic perturbations, such as oil spills, and preparing for future disaster response.
The Galápagos penguin population has doubled over the past 30 years due to changes in wind currents and ocean temperatures. This expansion of the cold pool, where sea surface temperatures are below 22 degrees Celsius, has bolstered algae and fish numbers, supporting the penguin population.
A study found that simulated seawater flooding significantly reduced growth of sensitive vegetable seedlings. Salt-tolerant varieties like spinach, eggplant, and tomato showed less damage, with some experiencing a 43-67% reduction in photosynthetic rate after two weeks.