Articles tagged with Ocean Surface Temperature
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The Atlantic Ocean near Bermuda has warmed by 1°C over the past 40 years, with surface temperatures increasing by 0.24°C per decade since the 1980s. The ocean's salinity and oxygen levels have also decreased, leading to increased acidity, which can affect marine life.
A recent study by University of Queensland scientist Professor Ove Hoegh-Guldberg warns that record-breaking marine heatwaves will cause catastrophic mass coral bleaching worldwide. The research suggests that current marine heatwaves will likely lead to a global mass coral bleaching event over the next 12-24 months.
Researchers found that a rise in South Atlantic temperature caused a release of trapped CO2 into the atmosphere, affecting climate regulation. This process has implications for current climate change and potential collapse of the AMOC.
A study published in Science presents records from North Atlantic sediments that agree with recent surface and deep ocean warming and freshening. The research shows a connection between the surface and deep ocean throughout the last 1,200 years.
Researchers found a cooling of about 1°C in the southern Caribbean during the Little Ice Age, coinciding with droughts and lower rainfall in the Yucatan Peninsula. The study suggests that salt movement from the Caribbean to high northern latitudes plays a crucial role in regulating global climate.
Researchers have reconstructed a global history of water over the past 2,000 years, showing that the global water cycle has changed during periods of higher and lower temperatures. The study found that when global temperature is higher, rain and other environmental waters become more isotopically heavy.
A team of researchers at MIT has discovered a process where light can directly cause evaporation without heat, exceeding the thermal limit. This phenomenon could explain natural phenomena like fog and clouds, and enable new approaches to desalination.
A new study by Colorado State University reveals that seismic signals show a growing intensity in ocean waves since the late 20th century, attributed to global warming. The research indicates that storms are becoming more intense and wave energy is increasing globally, posing a serious threat to coastal ecosystems and infrastructure.
Algae have adapted to cope with nutrient starvation by evolving a new cellular machinery that allows them to use sunlight for growth without iron. This discovery holds promises for biotechnology developments that could enhance crop productivity and support marine ecosystems.
A new study confirms the presence of deadly Vibrio bacteria in Florida's coastal waters following Hurricane Ian. The research, led by University of Maryland senior author Rita Colwell, found high levels of pathogenic Vibrio parahaemolyticus and Vibrio vulnificus, particularly in oyster samples from Lee County.
Global temperatures are projected to reach unprecedented highs in 2023 due to factors such as El Niño and widespread wildfires. The China Global Merged Surface Temperature dataset 2.0 reveals that the year is expected to be the hottest on record, with global mean sea surface temperatures and land air temperatures reaching all-time highs.
A research study has unveiled a previously unknown mechanism that significantly influenced Earth's climate during the Cretaceous period. The movement of continents during this time caused a slowdown in large ocean currents, disrupting their ability to transport warm water from the equator to the poles.
The State of the Climate report confirms record highs in greenhouse gas concentrations, global sea levels, and ocean heat content. Scientists from over 60 countries contributed to the annual review, providing a comprehensive update on Earth's climate indicators and notable weather events.
A study published in Nature Geoscience found that blowing snow produces fine sea salt aerosols, increasing particle concentration and cloud formation in the central Arctic. These aerosols contribute to Arctic warming by trapping surface long-wave radiation, boosting temperatures.
A new study reveals that volcanic eruptions can temporarily weaken the Pacific Walker Circulation, a major driver of global precipitation. The recent strengthening of this circulation suggests that aerosols from human activity may have an opposite effect on its behavior.
A new study found that the Pacific Ocean's western boundary current significantly strengthened due to global warming, contributing to intensified equatorial undercurrents and increased sea surface temperatures in the eastern Pacific. This change has been linked to enhanced El Niño events.
A recent study by GEOMAR researchers found that fluctuations in the Labrador Sea can significantly influence the strength of sinking processes east of Greenland. This phenomenon affects the Atlantic Meridional Overturning Circulation (AMOC), a crucial climate system that brings warm water from the Gulf of Mexico to Europe.
A new study finds changes in atmospheric circulation may play a significant role in the formation of the 'cold blob' in the North Atlantic. The North Atlantic Oscillation influences wind patterns, which can cool ocean surface temperatures, and may have contributed to the region's unusual cooling trend.
Researchers predict a significant increase in projected frequency of multiyear La Niña events under global warming. This is due to enhanced tropical-subtropical interaction and Pacific mean-state warming patterns.
Researchers from the University of Copenhagen predict the Atlantic Meridional Overturning Circulation (AMOC) will collapse between 2025 and 2095, with major consequences for Earth's climate. The study contradicts the latest IPCC report and highlights the importance of reducing global greenhouse gas emissions.
Sediments from the Camp Century ice core show northwestern Greenland was ice-free during MIS 11 interglacial period. This finding indicates the Greenland Ice Sheet contributed to 1.4 meters of sea-level equivalent to global sea level during this time.
Research found that warmer ocean temperatures and marine heatwaves lead to increased overlap between Chinook salmon and Pacific hake, raising the risk of salmon bycatch. The study used 20 years of data and modeled behavioral changes to show how salmon move lower into the water column during higher temperatures.
Researchers developed a novel method for underwater geolocalization using deep neural networks trained on 10 million polarization-sensitive images. The technology enables tethered-free navigation and has the potential to improve location accuracy, enabling in situ autonomous sampling robots to monitor water properties.
Researchers used coastal surveys from 1993-2021 to find a dramatic delayed effect of warmer oceans on seabird mortality. Massive die-offs occurred roughly once per decade, with five events exceeding a quarter million birds between 2014 and 2019.
A study by Florida Atlantic University's Harbor Branch Oceanographic Institute found domoic acid toxin in 87% of samples from the southern Indian River Lagoon, which can harm shellfish, finfish, birds, and humans. The toxin is more prevalent in cool temperatures and high salinity waters, suggesting it may be a resident population.
Researchers have identified a phenomenon that could help coral reef managers plan and act for the future. Ocean processes during El Niño strengthened the North Equatorial Counter Current, driving cooler plankton-rich waters to Palmyra's coral reefs and enabling them to better manage heat stress.
Researchers have investigated the impact of eddies on the Indonesian Throughflow, a vital current that transports warm waters between the Pacific and Indian Oceans. The study found large flow fluctuations in certain areas, leading to significant changes in seawater temperature and circulation patterns.
A new study by UMD criminologist Gary LaFree and former graduate student Bo Jiang found a link between rising sea surface temps and piracy. Rising temps caused an increase in piracy attacks in East Africa, while decreasing temps led to decreases in piracy attacks in the South China Sea due to changes in fish production.
Oceanographers warn of limitations in carbon dioxide removal, emphasizing the need for rapid emission cuts to limit global warming. Clear definitions of marine heatwaves are also crucial for coastal communities to adapt and resource managers to prioritize mitigation strategies.
Researchers at Curtin University found a catastrophic decline in biodiversity at the west end of Rottnest Island, with some species experiencing declines of up to 90% between 2007 and 2021. The study highlights the impact of global climate change on marine ecosystems even in protected areas.
Researchers applied machine learning tools to study how climate impacts connectivity and biodiversity in the Pacific Ocean's Coral Triangle. They found that climate dynamics have contributed to biodiversity due to variability introduced by El Niño and La Niña events.
A study found that a northward position of North Pacific sea surface temperature anomalies weakens the Arctic stratospheric polar vortex. This weakening can lead to Eurasian cooling and negative surface temperature anomalies.
Researchers found that larvae of the Atlantic mangrove fiddler crab survived less in warmer water and underwent physiological changes due to higher acidity. Marine heatwaves will be harmful to species and those that feed on them, with potential economic losses to fisheries. Further research is needed to understand the effects.
Researchers analyzed 550 million-year-old cherts to uncover the secrets of early Earth's cooling. The study found that oxygen isotope ratios in ancient cherts are driven by the Earth's thermal evolution, not seawater temperatures, sparking new insights into the planet's history.
Researchers have found that corals in the northern Red Sea have not experienced mass bleaching despite high heat stress due to their acquired temperature tolerance around 7,000 years ago. The region's reefs are expected to be among the last standing by the end of the century under projected warming scenarios.
Researchers found that using coupled atmosphere-ocean-sea ice circulation models with observation-based datasets, they can predict Antarctic sea ice variability over decadal time scales. The initialization of subsurface ocean temperature and salinity fields significantly improves prediction skills, especially in the west Antarctic region.
A new study by the University of Gothenburg reveals that the salinity of surface water is crucial for sea ice formation at low temperatures. The study finds that warm water is prevented from rising to the surface due to its lower salinity, creating a 'lid' that allows cold polar temperatures to freeze continuously moving warmer water.
A research team at UNIST has identified subtropical low cloud feedback as a key mechanism driving teleconnections between the Southern Ocean and tropical precipitation. Their findings suggest that this impact is stronger than previously thought, with implications for mid-latitude climate predictions.
Researchers at Hokkaido University have discovered the importance of Frazil ice in producing dense cold water, which is a key component of global ocean circulation. This finding has significant implications for understanding the impact of global warming on this process.
A study published in Nature suggests that ocean heating in the western tropical Pacific will make the East Asian monsoon season wetter. The researchers found a correlation between increases in monsoonal rain in eastern China and the heat content of the Indo-Pacific Warm Pool over the past 360,000 years.
A comprehensive review of ocean warming reveals that global ocean heat content has increased by over 90% since the 1950s. The study predicts that if greenhouse gas emissions are not reduced, ocean warming will continue to accelerate, leading to more intense storms, droughts, and sea-level rise.
Researchers found that subsurface warming in the North Atlantic precedes the release of massive icebergs from Canada and the US, leading to a reduction in surface salinity and AMOC collapse. This finding sheds light on the sequence of events responsible for the collapse of the Atlantic meridional overturning circulation system.
Researchers warn that half of the world's coral reefs may become unsuitable by 2035 due to a combination of climate change stressors. This finding has significant implications for local biodiversity, culture, fisheries, and tourism in Hawaii and beyond.
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 found that coral symbiont community structure responds to environmental conditions in Kaneohe Bay, which can help predict how corals will respond to future heat stress. Corals in areas with less light and temperature variability hosted less of the stress resilient symbiont.
Researchers used largest temperature reconstruction database to find no globally synchronous warm period during the Holocene. Regional variability in temperature suggests high latitude insolation played a major role in driving climate changes.
A new study suggests that climate change is favoring La Niña events in the Pacific Ocean. The researchers found that temperature patterns at the ocean's surface have changed, with the Pacific off South America cooling and the western Pacific warming more than elsewhere. This has led to a strengthened temperature difference between the ...
A recent study by the University of Plymouth and international partners reveals that rapid sea temperature drops of up to 10 degrees were a primary cause of a devastating coral die-off event in Costa Rica's Eastern Tropical Pacific. The research highlights the importance of considering upwellings when managing reef systems, and propose...
Researchers have created the first charts of Antarctic ocean temperatures over the past 45 million years using molecular fossils and machine learning. The study suggests that the planet is nearing a 'tipping point' where ocean warming caused by CO2 will lead to catastrophic sea level rises.
Physicists at Ural Federal University developed a mathematical model to predict El Niño's behavior, accounting for wind, humidity, temperature, and ocean currents. They found that stronger winds can cause unpredictable weather phenomena.
A study led by ICM-CSIC finds that mass mortality events caused by marine heatwaves affected all Mediterranean regions between 2015 and 2019, resulting in recurrent mass mortalities throughout the period. The research highlights the significant positive relationship between the duration of heat waves and the incidence of mortality events.
Scientists analyzed nearly two decades of underwater recordings to find that the distinctive songs of Chagos pygmy blue whales have increased in frequency over time. This suggests that stocks of the sub-species may be on the rebound after being hunted to near-extinction in the 20th century.
Research suggests climate-driven changes in seawater density may disrupt mangrove dispersal patterns worldwide, particularly in the Indo-West Pacific region. The study, published in Nature Climate Change, highlights the importance of considering oceanic factors in understanding mangrove response to climate change.
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 reveals the Gulf of Maine is being increasingly influenced by warm water from the North Atlantic, leading to significant changes in its food web. The warming is driven by an influx of North Atlantic water, which has raised temperatures and salinity levels, impacting marine life.
New research suggests that 62% of warming in the subtropical North Atlantic is stored in the deep ocean below 700m. The study estimates a further 0.2°C warming in the next 50 years due to climate change.
Researchers at the University of Göttingen discovered an unknown group of marine eustigmatophyte algae that produces distinctive lipids, allowing for the reconstruction of summer sea surface temperatures. The Long chain Diol Index provides a novel climate proxy based on these lipids.
A recent analysis reveals a unprecedented increase in Atlantic tropical cyclones and a decrease in Western North Pacific storms, with greenhouse gas-induced global warming potentially playing a role. The study suggests that climate models need to be evaluated to predict future changes in tropical cyclone numbers between the two basins.
The study highlights a significant difference in warm sea surface temperature (SST) anomalies between the 1997/98 and 2015/16 extreme El Niño seasons. During the 2015/16 event, SST anomalies were modest compared to the 1997/98 event, which saw twice the magnitude of anomalies.