Articles tagged with Ocean Temperature
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A new study using satellite images found that glaciers on the Antarctic Peninsula are flowing up to 22% faster during summer months due to warmer ocean waters and melting snow. This speed-up, driven by reduced friction between ice sheets and underlying rock, poses a significant threat to global sea levels.
A new study found that some coral reefs in the Eastern Pacific could maintain high coral cover into the 2060s by shuffling symbiotic algae communities. The reefs predominantly built by corals in the genus Pocillopora and hosting heat-tolerant alga Durusdinium glynnii are better equipped to survive and maintain high levels of coral cover.
Researchers at Oregon State University found a relationship between surface gravity waves and infragravity waves that fuel sneaker waves. Longer waves with more energy can run further up the beach, but not all long waves turn into sneaker waves.
Scientists have recorded another year of record-breaking ocean temperatures, indicating a perpetually heating climate. The added heat content has serious consequences, including ocean deoxygenation, altering the exchange of heat, carbon, and oxygen between the ocean and atmosphere.
A new study reveals that changing ocean circulation strengthens precipitation patterns in the Indian Ocean, leading to more intense flood events and droughts. The research suggests a mutual amplification of these effects due to global warming and weakened ocean circulation.
A study by Brown researchers reveals how climate change can impact the Indian Ocean dipole, leading to extreme weather events like megadroughts in East Africa and flooding in Indonesia. The analysis compares long-term climate data with simulations from an advanced climate model.
Researchers have found that a weak ocean gyre near the Thwaites Ice Shelf allows more warm water to access its base, causing it to melt. This process is driven by waters from nearby melting ice shelves and can impact the stability of adjacent ice shelves, contributing to global sea-level rise.
A University of Otago study found that rising ocean temperatures stunt spore settlement and germination in giant kelp. Temperatures above 23.8°C significantly decline germ-tube length, highlighting the vulnerability of early life stages in this valuable ecosystem engineer.
Researchers at the University of Bern have developed a new method to determine necessary emission reductions on a continuous basis. The AERA algorithm adjusts CO2 emissions according to latest temperature data, enabling more precise calculations.
A new model reveals that warmer Arctic Ocean evaporation transports moisture south, leading to increased snowfall in northern Eurasia. The study sheds light on the mechanism of this phenomenon and its impact on severe weather events.
A regime shift in the Southeast Greenland marine ecosystem has led to a permanent change from an ice-infested to a more temperate system, with large numbers of fin and humpback whales migrating to the area. This tipping point may be irreversible, having cascading effects throughout the ecosystem.
A distinct population of oceanic manta rays was identified off the coast of Ecuador, with an estimated total population of over 22,000 individuals, making it more than 10 times larger than any other known subpopulation. The population is large and potentially healthy due to favorable conditions in the region.
A recent study by researchers at MARUM and ICBM found that plankton communities have migrated to higher latitudes since the last ice age, leading to the formation of new species assemblages. These changes occurred even after ocean temperatures stabilized, suggesting a non-uniform response to global warming.
A new study reveals that global warming has doubled the probability of extreme ocean warming events in Japan's marginal seas since the 2000s. The increased occurrence frequency is attributed to human-induced climate changes, with most events linked to global warming.
New research simulates climate warming and ocean acidification in the Gulf of Mexico and Caribbean, finding that high emissions could lead to critically warm temperatures as early as 2050. Reducing emissions may delay this onset, giving coral conservation programs more time to adapt.
Researchers have discovered that small eddies, swirling at the edges of massive ocean currents, are a key source of nutrients for phytoplankton. These nutrient-rich eddies help maintain healthy populations of phytoplankton, which are essential for carbon sequestration and mitigating climate change effects.
Stronger hurricanes are more likely to reach Europe, with those encountering strong jet stream winds often reintensifying and moving further east. This study investigates the link between hurricane strength and European impact.
A recent study found that ocean cooling over the past 100 million years led to increased body size in tetraodontiform fishes, adhering to Cope's and Bergmann's rules. The researchers combined genomic and fossil data to support this finding, which was previously less well understood for ectothermic species.
Researchers at IISc identified a way to estimate ancient seawater temperature by analyzing otoliths from fish ears, which hold clues to water type and age. By correlating calcium isotope ratios with seawater temperatures, they found a powerful tracer of water temperature that can be applied to fossilized samples.
Researchers found that adult sea urchins can pass on heatwave resistance to their offspring, but this effect may not last throughout juvenile development. The study suggests that different life stages have varying abilities to cope with thermal stress, and that parental conditioning can help juveniles survive in extreme temperatures.
Researchers at Radboud University found that larger fish and those with large cells are more sensitive to oxygen stress in warm water. Freshwater fish appear to be more tolerant of oxygen-depleted water than marine fish, likely due to different selection pressures during their evolutionary history.
Research suggests that restoring areas with corals adapted to warmer temperatures is ineffective at helping corals survive climate change. Selectively breeding corals to be more heat tolerant only benefits large-scale efforts over centuries.
A study by Dr. Armineh Barkhordarian confirms a systematic warming pool in the Pacific caused by human activities, leading to increased frequency and intensity of local marine heatwaves. The region has experienced 31 marine heatwaves over the past 20 years, compared to just nine between 1982 and 1999.
A new study finds that cold-water corals thrive when food supply and oxygen content are available, but decline in response to changes. The research, led by MARUM, analyzed sediments from six locations and found that these factors have been critical to coral survival over the past 20,000 years.
A study of historical tiger shark jaws reveals a local southeastern Australian population has been extirpated due to shark control programs, emphasizing the need for regional management and conservation. Genetic diversity drives future evolution, and its loss can lead to reduced adaptability to environmental changes.
Researchers tracked 60 stingrays for a year, finding they prefer shallow waters but move into deeper lagoons during extreme tides and temperatures. Climate change may alter their preferred habitat, putting them at risk from sharks.
A new study has shown that increased levels of turbulence and mixing occurred every night in a coastal bay, similar to those caused by storms. The researchers attribute the signal to shoals of fish spawning anchovies, which mix water layers and impact temperature distribution, nutrients, and oxygen.
A recent study reveals that Megalodon's body size was influenced by water temperature, with individuals growing larger in cooler waters. The research suggests that Bergmann's rule may have played a role in the shark's gigantism.
Researchers found that glaciers in the Northern Hemisphere lost a total area of 390 km² per year, with 60% attributed to the Greenland Ice Sheet. Only 3% of glaciers advanced during this period. The study highlights the impact of climate change on marine-terminating glaciers.
A study at the University of Helsinki identified a link between early sexual maturation and improved aerobic performance in juvenile salmon. Genetic variations associated with early maturity were found to enhance basal metabolism and energy production, leading to better overall performance.
The English Channel prevents many rockpool species from reaching the UK due to unfavorable ocean currents. This could lead to a decrease in intertidal wildlife richness in the UK as warmer-water species fail to replace threatened ones. As climate change causes sea temperatures to rise, this barrier may prevent species from adapting.
Researchers found that climate change is causing a compound effect of extreme events in the oceans, including heatwaves, acidity, and low oxygen levels. This combination can be fatal to marine species, especially those already living at the upper end of their optimal temperature range.
The study found that climate change impacts are apparent in nearly all aspects of climate variability, including temperature extremes, precipitation patterns, and ecosystem changes. These changes have important implications for sustainable resource management and future adaptation strategies.
Researchers investigate glacial ice melting that releases acoustically distinct pressurized underwater bubbles, providing a potential tool for monitoring climate change's impact on glaciers. The team's experiments will permit the long-term monitoring of ice loss and its link to water temperature.
A team of researchers at the University of Rhode Island found that different types of phytoplankton respond differently to warming ocean temperatures. The study suggests that their growth rates and distribution patterns will be dissimilar, resulting in significant implications for future marine communities.
A new CIRES-led study reveals that ocean temperatures, not ice sheets, are responsible for the dramatic shift in atmospheric circulation and precipitation patterns on the West Coast. The research uses a climate model to evaluate the impact of Northern Hemisphere ice sheets on West Coast dynamics during the Last Glacial Maximum.
Researchers found polar bears can be used as indicators of environmental shifts, highlighting how changes affect marine mammal prey populations. They also discovered that polar bears are flexible eaters and will consume available prey, making them an ideal monitoring tool for tracking environmental changes.
Researchers found that warmer seawater temperatures decreased the nutritional content of giant kelp, a vital food source for many marine species. This decline could lead to population declines among consumers of kelp, including fish, invertebrates, and shorebirds, with far-reaching effects on entire ecosystems.
A new study suggests that waters off the French coast can be a deadly trap for small, foraging turtles in winter. Satellite tracking data reveals that younger individuals are at risk of being trapped in the region due to their inability to regulate body temperature and get lethargic with decreasing sea temperatures.
New research from the University of Arizona suggests that a slowdown in the Atlantic Meridional Overturning Circulation (AMOC) will intensify extreme cold weather in the US. The study found that without the AMOC, extremely cold winter weather would become more frequent and severe.
A study found that climate change will alter functioning of marine microbial communities, with plankton at the poles being particularly badly damaged by rising temperatures. In temperate zones, they'll suffer from reduced nutrient flows, while in the tropics, increased salinity will affect them.
Five innovative research projects tackle fundamental questions of environmental and earth science, including the origins of Earth and life on Mars. The studies aim to advance our understanding and lead to important scientific breakthroughs.
Researchers found that a probiotic cocktail of beneficial bacteria increases coral survival after a bleaching event. The approach could be administered in advance to help corals recover from high sea temperatures. Probiotic treatment improved coral response and recovery, boosting survival from 60% to 100%.
A new study on coral reefs in Kiribati found that more polluted and high-traffic waters can handle extreme heat events better than remote reefs. The research raises questions about the effectiveness of marine protected areas in conserving coral reefs.
Sea otters have a higher basal metabolic rate than predicted for their size, with skeletal muscle being the primary source of this hypermetabolism. This process, known as thermogenic mitochondrial leak, allows them to maintain a normal body temperature in cold water environments.
Scientists have discovered a new mineral, allabogdanite, at the Dead Sea that was previously only found in meteorites. The discovery has implications for our understanding of Earth's surface conditions and geological processes.
Researchers found that warm Atlantic water masses are responsible for slowed or prevented ice growth in the Barents and Kara Seas. Long-term data and simulations revealed that this phenomenon can lead to thinner and more fragile Arctic sea ice, potentially affecting regions further east.
A new University at Buffalo study uses ocean-bottom sediments to learn about ancient summer temperatures in southern Greenland, revealing that prolonged warmth may be disastrous for the Greenland Ice Sheet. The findings hold a message of caution as the world warms again today, with potential long-lasting effects on Earth's temperature.
Researchers at UNH discovered that climate change impacts deep-sea corals and sponges variably, with temperature and dissolved oxygen affecting sponge distribution and coral growth. High-resolution video analysis identified specific environmental ranges influencing species sensitivity.
Researchers have reconstructed ocean temperatures over the past 700,000 years using ice core samples from Antarctica, finding that mean ocean temperatures have fluctuated by up to 3°C between ice ages and warm periods.
Researchers found that the Kuroshio Current's large meander is responsible for increased humidity and temperature in Tokyo, leading to 160% more discomfort days. The study uses satellite data to examine the impact of ocean currents on regional climate.
A team of scientists led by NYU's Laure Zanna will leverage AI and machine learning to improve climate simulations, capturing vital atmospheric and oceanic processes like turbulence and clouds. The project aims to deliver more reliable climate projections, informing policymakers and scientists.
Researchers have obtained full-depth glacial meltwater observations in winter using instruments attached to tagged seals near the Pine Island Glacier. The study found a highly variable meltwater distribution with two meltwater-rich layers connected by scattered columns, which may change the melting rate of fragile ice shelves.
Researchers found that prolonged algal blooms lead to larger fish catches, particularly for sardines and squid, in the Red Sea. The study used satellite images to analyze phytoplankton bloom timings and their effect on marine food webs.
Gills can't keep up with fish bodies as they grow, leading to oxygen limitation. This constraint affects fish reproduction and fisheries, particularly in warm waters with low oxygen levels.
Researchers found that sea urchins are more affected by low oxygen levels than ocean acidification when exposed to high temperatures. The study revealed that severe heat, hypoxia, and acidity do not have a synergistic effect on the urchins' performance.
A study by Alfred Wegener Institute reveals that warm and dry Aprils in Central Europe increase the risk of summer droughts. The team found that a blocking high-pressure system over the North Sea and parts of Germany is to blame for these conditions.
At a depth of 1,180 meters, temperatures of up to 120 degrees Celsius were reached, but microbial populations collapsed at around 45 degrees. Endospores, dormant cells of certain bacteria, increased rapidly and persisted in hot zones.
Research by KAUST reveals that sand temperatures at Red Sea nesting sites have exceeded the pivotal temperature threshold of 29.2 degrees Celsius, leading to feminization of hatchlings and potential mass mortality.
Researchers at RIKEN develop a material that can change from soft to hard and back again in response to temperature changes, mimicking the properties of sea cucumbers. The material's structure is manipulated using electrostatic repulsion and gold nanoparticles, enabling rapid and reversible shape shifts.