Ocean circulation atlantic ocean. Medical search. Frequent questions

The AMOC describes a system of ocean currents that exists in the North Atlantic and can be characterized by a movement of warm water towards the north, high salt concentrations in the water present at the upper layers of the Atlantic, as well as a flow of colder water towards the south by the deepest parts of this vast ocean 2 . (azocleantech.com)
Most people are interested in what happens at the surface - the Gulf Stream and associated Atlantic currents carry warmer water north, bringing mild temperatures to Western Europe. (sonnenseite.com)
Global warming today could have similar effects on ocean currents and could accelerate climate change. (phys.org)
Warm currents, such as the Gulf Stream , transport energy from the tropics to the subpolar North Atlantic and influence regional weather and climate patterns. (phys.org)
The new study shows that the Atlantic MOC in the past was very sensitive to changes in the salt balance of Atlantic Ocean currents. (phys.org)
By combining the gravity data with information about sea surface height gathered by other satellite altimeters, scientists were able to track the direction and speed of geostrophic ocean currents. (wikipedia.org)
A better understanding of the ocean currents and heat transport. (wikipedia.org)
The maps produced from the GOCE data show ocean currents in much finer detail than had been available previously. (wikipedia.org)
In our study - together with colleagues from Princeton and the University of Madrid - we therefore compare all available measurement data sets since the late 19th century with a simulation of a climate model in which the ocean currents are computed in very high resolution. (realclimate.org)
Proxies include reconstructing water surface or subsurface temperature patterns, subsurface water mass properties and how these different water masses with different densities move over time, and physical changes to currents at the ocean bottom. (envirobites.org)
Still, studying ocean circulation during the most recent greenhouse interval in the geologic past may provide clues as to how ocean circulation might develop in the future, and how heat will be distributed over the planet by ocean currents. (ox.ac.uk)
What would the pattern of ocean surface currents look like if there were no continents on Earth? (grossmont.edu)
Over time, massive amounts of sediment (sand, soil, and mud) were peeled away from North and South America by strong ocean currents and fed through the gaps between the newly forming islands. (nasa.gov)
By shutting down the flow of water between the two oceans, the land bridge re-routed currents in both the Atlantic and Pacific Oceans. (nasa.gov)
Atlantic currents were forced northward, and eventually settled into a new current pattern that we call the Gulf Stream today. (nasa.gov)
It uses Earth science data from a variety of sensors on NASA Earth observing satellites to measure physical oceanography parameters such as ocean currents, ocean winds, sea surface height and sea surface temperature. (strategies.org)
They can do so because chemical information from ocean currents gets built into their shells during their lifetime. (lu.se)

What is Thermohaline Circulation? (azocleantech.com)
Additionally, the primary driving factor of thermohaline circulation (THC) is high-latitude cooling, which is when the oceans at the coldest regions of the world reach their highest density and cause convective mixing and subsequent circulation of the water. (azocleantech.com)
At 59 million years ago, the Atlantic Ocean truly became part of the global thermohaline circulation, the flow that connects four of the five main oceans together in a large global cycle. (ox.ac.uk)
What are the driving forces of surface and thermohaline circulation? (grossmont.edu)
Thermohaline circulation, also called the Global Ocean Conveyor, moves water between the deep and surface ocean worldwide. (windows2universe.org)
It is known as the Global Ocean Conveyor or thermohaline circulation. (windows2universe.org)
The Schwartz-Randall report pointed to the abrupt onset of a significantly colder, dryer climate in the Northern Hemisphere as the most perilous possible consequence of Global Warming up to about 2010, because such warming (the trapping of incoming solar radiation and outgoing infrared radiation from the land and oceans, by greenhouse gases in the atmosphere) might cause the thermohaline cycle to stop. (dissidentvoice.org)
Global Warming causes glaciers and ice caps to melt, and such fresh (unsalted) meltwater from Greenland floods into the North Atlantic where the thermohaline current dives to the ocean floor. (dissidentvoice.org)
The researchers hope to return in another 10 years to determine if the increase in carbon uptake continues, or if, as many fear, it will decrease as a result of slowing thermohaline circulation. (newswise.com)
If the heat transport by the Atlantic thermohaline circulation suddenly increases for some reason (we'll come to that), Greenland suddenly gets warm (an effect amplified by receding sea ice cover of the seas near Greenland) and Antarctica starts to cool. (realclimate.org)

While Atlantic meridonial overturning circulation (AMOC) and THC are two terms that are often used interchangeable, the AMOC differs as it involves the total circulation in the latitude depth plane that, in its name alone, does not provide any information on the driving factors of its circulation, whereas the driving factor of THC is implied in its name as directly related to the creation and destruction of buoyancy. (azocleantech.com)
These changes have been primarily attributed to rising global temperatures, as warmer water reduces the ability of the natural circulation within oceans, particularly the AMOC, to cool. (azocleantech.com)
From this data, it was determined that around 1990 the AMOC reached a minimum until a peak value was reached in the early 2000s until it began to decline again to its current state, which is estimated to be the lowest circulation rates that have existed in over 1,000 years. (azocleantech.com)
When the AMOC is in a slow phase, the North Atlantic becomes cooler, ice melt slows, and eventually the freshwater melt source dries up and the heavier saltier water can plunge down again, which speeds up the whole circulation. (sonnenseite.com)
From about 2000 until now, the AMOC has been in its faster phase, and the increased heat plunging in the North Atlantic has been removing excess heat from the Earth's surface and storing it deep in the ocean. (sonnenseite.com)
Scientists at Yale University and the University of Southampton say the ongoing Arctic ice loss can play an active role in altering one of the planet's largest water circulation systems: the Atlantic Meridional Overturning Circulation (AMOC). (yubanet.com)
AMOC has a lower limb of dense, cold water that flows south from the north Atlantic, and an upper limb of warm, salty water that flows north from the south Atlantic as part of the Gulf Stream. (yubanet.com)
AMOC plays a major role in regional and global climate, affecting the Atlantic rim countries - particularly those in Europe - and far beyond. (yubanet.com)
There is debate about slowing of the Atlantic Meridional Overturning Circulation (AMOC), a key component of the global climate system. (nature.com)
Atlantic SST is influenced by the AMOC, especially on decadal timescales and beyond. (nature.com)
Here we show from Atlantic SST the prevalence of natural AMOC variability since 1900. (nature.com)
The Atlantic Meridional Overturning Circulation (AMOC, also known as Gulf Stream System ) is a huge, three-dimensional flow system throughout the Atlantic, which fluctuates on different time scales. (realclimate.org)
In my view, it is the ocean temperatures that are most likely to solve the mystery - because firstly, there is a lot of good data and, secondly, the AMOC has a dominant influence on sea temperatures in large parts of the North Atlantic. (realclimate.org)
This "river" is the Atlantic Meridional Overturning Circulation (AMOC), one of the planet's major ocean circulation systems. (envirobites.org)
Currently, there are efforts to directly measure AMOC by using an array of sensors throughout the Atlantic Ocean at various water depths. (envirobites.org)
In fact, changes in the Atlantic Meridional Overturning Circulation (AMOC) - the same deep-water ocean current featured in the movie "The Day After Tomorrow" - could occur quite abruptly, in geologic terms, the study says. (wattsupwiththat.com)
AMOC is responsible for carrying oceanic heat northward in the Atlantic Ocean. (wattsupwiththat.com)
A bias-corrected model predicts a future AMOC collapse with prominent cooling over the northern North Atlantic and neighboring areas. (wattsupwiththat.com)
A collapse of the AMOC system, in Liu's model, would cool the Northern Atlantic Ocean, cause a spreading of Arctic sea ice, and move tropical Atlantic rain belts farther south. (wattsupwiththat.com)
They said detailed information about water salinity, ocean temperature, and melting ice - over a period of decades - is essential to the accuracy of AMOC models. (wattsupwiththat.com)
The impacts of a hypothetical slowdown in the Atlantic Meridional Overturning Circulation (AMOC) are assessed in a state-of-the-art global climate model (HadGEM3), with particular emphasis on Europe. (springer.com)
Drijfhout S, van Oldenborgh GJ, Cimatoribus A (2012) Is a decline of AMOC causing the warming hole above the North Atlantic in observed and modeled warming patterns? (springer.com)

For example, ice sheets and glaciers that are present in Greenland and other Arctic areas are melting, which is pouring excessive amounts of water into nearby oceans thereby decreasing the salinity and density of these bodies of water 3 . (azocleantech.com)
The researchers based their findings on a combination of comprehensive climate model simulations and novel computations of the sensitivity of ocean circulation to fluctuations in temperature and salinity at the ocean's surface over time. (yubanet.com)
The chemical isotopes and types of elements these organisms contain change depending on their environmental conditions like water temperature or salinity, capturing information on the ocean conditions of when they were growing or alive. (envirobites.org)
By contrast, the use of this form of surface forcing, but with direct freshwater forcing and transport instead of the more commonly used salt flux, reproduces the low salinity in these regions and gives a circulation in good agreement with that obtained using the robust diagnostic mode. (uea.ac.uk)
Salinity is key to studying the water cycle and ocean circulation, both of which are related to climate. (strategies.org)
Salinity decreases when freshwater enters the ocean from rivers, melting ice, rain and snow. (strategies.org)
Processes that cause freshwater to exit the ocean such as evaporation and formation of sea ice raise salinity. (strategies.org)
In this study, the relationship between the surplus Greenland freshwater flux and this freshening is tested by analyzing the propagation of the Greenland freshwater anomaly and its impact on salinity in the subpolar North Atlantic based on observational data and numerical experiments with and without the Greenland runoff. (fsu.edu)

My research focus is reconstructing temperature and hydroclimatic variability in the Gulf of Mexico/Subtropical Atlantic Ocean using a broad range of different paleoclimate archives. (usgs.gov)
A study published in Geophysical Research Letters shows that observed sea surface temperature could help study variability of the South Atlantic Meridional Overturning Circulation and its impacts on climate and extreme weather. (noaa.gov)
This study was supported by the CPO Climate Variability and Predictability program and the CPO Ocean Observing and Monitoring Division . (noaa.gov)
Here we present sedimentary geochemical proxy data from the Gulf of Cadiz to reconstruct the variability of Mediterranean Outflow Water, an important heat source to the North Atlantic. (uni-koeln.de)
The data were collected during two National Science Foundation-funded international ship-based studies, CLIVAR (Climate Variability CO2 Repeat Hydrography) and GO-SHIP (Global Ocean Ship-Based Hydrographic Investigations Program). (newswise.com)

The Atlantic Ocean circulation (termed meridional overturning circulation, MOC) is an important component of the climate system. (phys.org)
This study reconstructs a century-long South Atlantic Meridional Overturning Circulation (SAMOC) index. (noaa.gov)
Caesar receives the 5,000 Euro prize for her outstanding, socially relevant work on the Atlantic Meridional Overturning Circulation. (uni-potsdam.de)
Molly's research expertise includes measuring the strength of the Western Boundary Current in the North Atlantic, monitoring the meridional overturning circulation in the North Atlantic as part of the RAPID/MOCH program, managing high-density XBT observations in the Atlantic, and leading repeat hydrography and coastal carbon dioxide surveys. (noaa.gov)
Human-induced changes in the global meridional overturning circulation are emerging from the Southern Ocean. (noaa.gov)
de Vries P, Weber SL (2005) The Atlantic freshwater budget as a diagnostic for the existence of a stable shut down of the meridional overturning circulation. (springer.com)

Some focus is on the sea surface temperature (SST) slightly cooling in parts of the subpolar North Atlantic despite widespread ocean warming. (nature.com)
In the North Atlantic, the measured values differ markedly from the average global warming: the subpolar Atlantic (an area about half the size of the USA, south of Greenland) has hardly warmed up and in some cases even cooled down, contrary to the global warming trend. (realclimate.org)
Tracer budget analysis shows that 44% of the volume of the Greenland freshwater anomaly is retained in the subpolar North Atlantic by the end of the simulation. (fsu.edu)

Their work has contributed to the 2019 Special Report on the Ocean and Cryosphere in a Changing Climate of the Intergovernmental Panel on Climate Change, which concluded for the first time that the Atlantic circulation is weakening. (uni-potsdam.de)

and Rik Wanninkhof of NOAA's Atlantic Oceanographic and Meteorological Laboratory. (newswise.com)

New Haven, Conn. - One of the world's largest ocean circulation systems may not be as stable as today's weather models predict, according to a new study. (wattsupwiththat.com)
The findings show the impact that the burning of fossil fuels have had on the world's oceans in just 10 years. (newswise.com)

By transporting heated water from the Southern Hemisphere, this ocean circulation system absorbs a substantial amount of heat from these areas and transports it to higher latitudes for release into the atmosphere. (azocleantech.com)
Conventional thinking has been that if ocean circulation weakens, reducing the transport of heat from low to high latitudes, then it should lead to sea ice growth. (yubanet.com)
We suggest that Arctic changes on a multi-decadal timescale, such as the decline in sea ice cover that we are currently experiencing, is the most efficient way to weaken the large-scale ocean circulation of the North Atlantic, which is responsible for the oceanic transport of heat from the equator to high latitudes," Sévellec said. (yubanet.com)
Evidence of more widespread changes in the circulation at mid-high latitudes was also found but we have not yet established whether they are directly linked to the anomalous Greenland Sea forcing. (nerc.ac.uk)
Without these ocean circulation systems, the equator would be much hotter, and the high latitudes much colder. (envirobites.org)
Because of this redistribution of heat through water circulation, European cities like Barcelona enjoy moderate temperatures, while North American cities at similar latitudes, like Boston, experience harsh winters. (envirobites.org)
The Gulf Stream transports huge amounts of warm water from the Southern Ocean and the tropical Atlantic to higher latitudes, contributing among other things to the mild winter climate in Western Europe. (uni-potsdam.de)
Subsurface heat transfer from the subtropical Atlantic Ocean to high latitudes during the mid-to-late Pliocene may have been responsible for a delay in the intensification of Northern Hemisphere glaciations, according to sedimentary proxy records and numerical modelling. (uni-koeln.de)
Water heated near the equator travels at the surface of the ocean north into high latitudes where it loses some heat to the atmosphere (keeping temperatures in Northern Europe and North America relatively mild). (windows2universe.org)
This current distributes solar heat collected by ocean waters in tropical latitudes to higher latitudes (closer to the poles). (dissidentvoice.org)

The young investigator Cesar Negre studied the natural abundance of these isotopes in the seafloor sediments 2.5 km deep in the South Atlantic and achieved a PhD degree in the Environmental Science and Technology doctoral programme at ICTA. (phys.org)
At that time the balance of seawater density between the North and South Atlantic was shifted in such a way that deep water convection was stronger in the South Polar Ocean. (phys.org)
An Integrated Nowcast/Forecast Modeling System covering the South Atlantic Bight and Gulf of Mexico (SABGOM) is in operation utilizing sophisticated model coupling and MPI parallel computing technique. (lsu.edu)
A team of scientists, led by Dr Sietske Batenburg at the University of Oxford's Department of Earth Sciences, in close collaboration with German and UK institutions, have discovered that the exchange of water between the North and South Atlantic became significantly larger fifty-nine million years ago. (ox.ac.uk)
The Atlantic Ocean was still young, and the North and South Atlantic basins were shallower and narrower than today. (ox.ac.uk)
In the South Atlantic, the Walvis Ridge barrier formed above an active volcanic hotspot. (ox.ac.uk)
From 59 million years ago onwards, Nd-isotope signatures from the North and South Atlantic fell in a narrow range. (ox.ac.uk)
The transfer of Indian Ocean thermocline and intermediate waters into the South Atlantic via the Agulhas leakage is generally believed to be primarily accomplished through mesoscale eddy processes, essentially anticyclones known as Agulhas Rings. (fsu.edu)
During the second phase, the eddy subsided below the upper warmer layer of the South Atlantic subtropical gyre while propagating west. (fsu.edu)

To extend the observational record and our understanding of the ocean-cryosphere link, we used a multi-proxy approach that combines new data from proglacial lake sediments, C-14-dated in situ moss that recently emerged from beneath cold-based ice caps, and Be-10 ages to reconstruct centennial-scale records of mountain glacier activity for the past similar to 10 k. y. in West Greenland. (whoi.edu)
The similarity between glacier change on West Greenland and multiple marine and terrestrial records across the North Atlantic suggests that glaciers are strongly influenced by changes in ocean circulation and consequently implies that the ocean-cryosphere teleconnection is a persistent feature of the Arctic system. (whoi.edu)

For larger sill depths a bi-directional flow regime across the ridge develops, providing a baseline for the final step towards the establishment of a modern prototype North Atlantic-Arctic water exchange. (awi.de)
Cancet, M., Lyard, F., and Fouchet, E. Impact of the sea ice friction on ocean tides in the Arctic Ocean, modelling insights at various time and space scales, manuscript in preparation. (crossref.org)

As the Atlantic Ocean continued to open, the oceanic crust cooled and subsided. (ox.ac.uk)
Integration of terrestrial and marine multi-proxy records allows reconstructions of key climatic parameters, such as temperature, moisture regime, and atmospheric/oceanic circulation patterns. (lu.se)

Her research portfolio is strongly rooted in the Atlantic Ocean, linking ocean circulation patterns and changes to global and regional climate patterns. (noaa.gov)
In short, the Isthmus of Panama directly and indirectly influenced ocean and atmospheric circulation patterns, which regulated patterns of rainfall, which in turn sculpted landscapes. (nasa.gov)
The focus on Europe, aided by the increase in resolution, has revealed previously undiscussed impacts, particularly those associated with changing atmospheric circulation patterns. (springer.com)
The study contributes to the field by discovering three key points analysed based on available data and literature on recorded global temperature, including: differences between north and south hemispheres, specific patterns due to ocean surface temperature increase, and recent impacts on particular regions. (scirp.org)
In the past, he argued, melting ice sheets released huge pulses of water into the North Atlantic, turning the water fresher and halting circulation patterns that rely on salty water. (sciencenews.org)

Some of the global warming impacts, however, unfold slowly in the ocean due to its large thermal and dynamical inertia. (nature.com)
Synthesis of observed regional hazards and impacts in ocean (top) and high mountain and polar land regions (bottom) assessed in SROCC. (ipcc.ch)
The 'upper water column' category refers to epipelagic zone for all ocean regions except Polar Regions, where the impacts on some pelagic organisms in open water deeper than the upper 200 m were included. (ipcc.ch)
The uptake of CO2 has many impacts on ocean-dwelling organisms by decreasing the pH. (newswise.com)
Much of Earth's population lives near the coast, but the ocean impacts everyone, no matter where they live. (strategies.org)

To determine the total uptake and storage of carbon dioxide in the North Atlantic over the last several decades, researchers analyzed data collected from the same locations, but 10 years apart, to identify changes caused by man-made CO2. (newswise.com)
The North Atlantic is an area of high uptake and storage due to large-scale ocean circulations. (newswise.com)

the melting ice sheets in Greenland release significant amounts of freshwater into the ocean, changing the temperature and densities of these waters, and consequently affecting the movement of this conveyor belt system. (envirobites.org)
Since coupled climate models currently use an artificial salt flux form for the freshwater fluxes between ocean and atmosphere, the poor performance of this surface forcing reported here has significant implications for climate prediction. (uea.ac.uk)
Blue colors represent lower salinities, resulting from freshwater inputs into the ocean. (strategies.org)

The impact of surface flux anomalies on the mid-high latitude Atlantic Ocean Circulation in HADCM3. (nerc.ac.uk)
High latitude ocean gateway changes are thought to play a key role in Cenozoic climate evolution. (awi.de)
Despite global cooling, sea surface temperatures in the high latitude North Atlantic Ocean rose between 2.9-2.7 million years ago. (uni-koeln.de)
We find evidence for enhanced production of Mediterranean Outflow from the mid-Pliocene to the late Pliocene which we infer could have driven a sub-surface heat channel into the high-latitude North Atlantic. (uni-koeln.de)
In accord with the proxy data, the numerical model results support the formation of a sub-surface channel that pumped heat from the subtropics into the high latitude North Atlantic. (uni-koeln.de)

The global climate models can project what's going to happen long-term if carbon dioxide increases by a certain amount, but they currently lack the capability to predict surface warming in the next few decades, which requires a knowledge of how much the excess heat trapped by greenhouse gases is being absorbed by the oceans," Tung said. (sonnenseite.com)

Summer precipitation decreases (increases) in northern (southern) Europe and is associated with a negative summer North Atlantic Oscillation signal. (springer.com)

Moreover, the oceans have taken up about one third of the total anthropogenic CO 2 emissions since the start of industrialization, causing ocean acidification 5 . (nature.com)

What is Making the Atlantic Ocean Circulation System Weaker? (azocleantech.com)
The general cooling and atmospheric circulation changes result in weaker peak river flows and vegetation productivity, which may raise issues of water availability and crop production. (springer.com)

Four cases of PWMV have been recorded in pilot whales of the Northern Hemisphere, on the Atlantic coast of the United States and in the Canary Islands, Spain ( 4 , 5 ). (cdc.gov)

New research from the University of Washington and the Ocean University of China finds the slowdown is not caused by global warming but is part of regular, decades-long cycle that will affect temperatures in coming decades. (sonnenseite.com)
Climate scientists have expected the Atlantic overturning circulation to decline long-term under global warming, but we only have direct measurements of its strength since April 2004. (sonnenseite.com)
This 3-Dimensional high resolution modeling system is driven by realistic meteorological forcing, tides, rivers, and deep ocean boundary conditions provided by a data assimilative global ocean model. (lsu.edu)
The Global Ocean Monitoring and Observing (GOMO) Program is the U.S. Federal source and international leader for sustained, in situ global ocean observations and information in support of research, monitoring, and prediction. (noaa.gov)
How does ocean ventilation change under global warming? (ametsoc.org)
Each of these changes helped establish the global ocean circulation pattern we see today. (nasa.gov)
With global warming, ocean circulation in the Atlantic Ocean is generally thought to weaken. (uib.no)
In: Siedler G, Church J, Gould J (eds) Ocean circulation and climate: observing and modelling the global ocean. (springer.com)
World Ocean Circulation Experiment, Global Data, Version 3.0. (pangaea.de)
They are all connected in one global ocean. (windows2universe.org)
The Global Ocean Conveyor moves water slowly, 10 cm per second at most, but it moves a lot of water. (windows2universe.org)
This may stop the global ocean conveyor and change the climate of the European and North American continents. (windows2universe.org)
The study, titled "Rapid Anthropogenic Changes in CO2 and pH in the Atlantic Ocean: 2003-2014" was published in the journal Global Biogeochemical Cycles . (newswise.com)
My thesis titled"High-resolution, quantitative siliceous phytoplankton assemblage variations across the Eocene-Oligocene Transition in 748B site (Kerguelen Plateau, Indian Ocean)" was focused on biogenic opal accumulation rates and changes in diatom assemblages in response to a global cooling event coinciding with the Eocene-Oligocene transition. (lu.se)
This approach will lead to increased understanding of how climate change is expressed through global-scale teleconnections of the atmosphere and the ocean, and how climate dynamics are related to changes in the carbon cycle. (lu.se)

from there, the heavier salty water sinks and returns at depth from the Labrador and Nordic seas, near the North Pole, all the way south to the Southern Ocean. (sonnenseite.com)
The dense highly salted descending water then runs as a cold deep ocean current south along the east coast of South America, and continues in a complicated path along the ocean floor into the Pacific Ocean, where it warms and eventually rises to become a surface current of more buoyant less salty water. (dissidentvoice.org)

In her doctoral thesis, Levke Caesar could show evidence that the major Atlantic overturning current (also called Gulf Stream) has weakened by about 15 percent since the middle of the 20th century. (uni-potsdam.de)

Upon receiving his Ph.D. degree in Marine Sciences in 2010, Dr. Xue joined the Ocean Observing and Modeling Group as a postdoctoral research associate and has been exposed to a number of interdisciplinary oceanographic studies including coupled ocean-wave- sediment transport modeling, operational Nowcast/Forecast system development, tracer simulation for oil spill, storm surges assessment, and ocean glider deployment. (lsu.edu)

However, the underlying ocean dynamics are poorly understood. (awi.de)
This model simulation took six months on 11,000 processors (9,000 of them for the ocean alone) of the high-performance computer at NOAA's Geophysical Fluid Dynamics Laboratory in Princeton. (realclimate.org)

There was a gap between the continents of North and South America through which the waters of the Atlantic and Pacific Oceans flowed freely. (nasa.gov)
The narrow strip of land connects continents and divides oceans, while making clouds sprout daily. (nasa.gov)

The sensitivity of the circulation and surface properties of the North Atlantic to different forms of surface forcing is investigated using a Bryan and Cox type model. (uea.ac.uk)

We then use Earth System Models to constrain the impact of enhanced Mediterranean Outflow production on the northward heat transport in the North Atlantic. (uni-koeln.de)
It is (at least in the model) a result of a big change in northward heat transport in the Atlantic. (realclimate.org)

Over the past 2.6 million years, changes in the circulation of the Atlantic Ocean have resulted in some of the most rapid climate shifts, which have affected not only the North Atlantic regions and surrounding areas, but also areas around the globe. (azocleantech.com)

The carbon system in the eastern tropical Atlantic remains poorly known. (ifremer.fr)
Additional carbon dioxide, for example, warms the cold water of the North Atlantic. (wattsupwiththat.com)
Newswise - MIAMI--A University of Miami (UM) Rosenstiel School of Marine and Atmospheric Science-led study shows that the North Atlantic absorbed 50 percent more man-made carbon dioxide over the last decade, compared to the previous decade. (newswise.com)
The oceans help to slow the growth of human produced CO2 in the atmosphere by absorbing and storing about a quarter of the total carbon dioxide emissions. (newswise.com)
The proportion of carbon isotopes in the shells tells us about changes in ocean circulation, but also of local changes in upwelling areas. (lu.se)

Here we use a fully coupled atmosphere-ocean model to investigate the effect of ocean gateway formation that is associated with the subsidence of the Greenland-Scotland Ridge. (awi.de)

The forams have existed for 500 million years and are still abundant in all seas and oceans. (lu.se)

This study shows the large impact all of us are having on the environment and that our use of fossil fuels isn't only causing the climate to change, but also affects the oceans by decreasing the pH," said Ryan Woosley, a researcher in the UM Rosenstiel School, Department of Ocean Sciences. (newswise.com)
A geochemist who studied the oceans, Broecker proposed that the shutdown of a major ocean circulation pattern, which he named the great ocean conveyor, could cause the North Atlantic climate to change abruptly. (sciencenews.org)

The current's speed determines how much surface heat gets transferred to the deeper ocean, and a quicker circulation would send more heat to the deep Atlantic. (sonnenseite.com)
A composite analysis of the ocean circulation was carried out for years with anomalously strong and weak heat loss over the Greenland Sea. (nerc.ac.uk)
The oceans have stored more than 90% of the heat trapped in the climate system caused by the accumulation of GHGs in the atmosphere, thereby contributing to sea-level rise and leading to more frequent and longer lasting marine heat waves 4 . (nature.com)
This ocean circulation helps distribute heat and moderate climate. (envirobites.org)
The pressure and heat caused by this collision led to the formation of underwater volcanoes, some of which grew tall enough to break the surface of the ocean and form islands as early as 15 million years ago. (nasa.gov)
Bryden HL, Imawaki S (2001) Ocean heat transport. (springer.com)
Changes in Antarctica are much smaller and more gradual, as it is far from the centre of action and the vast reservoir of ocean around it acts as a heat store. (realclimate.org)
There is still debate over what kind of ocean circulation change causes the change in heat transport. (realclimate.org)
These results confirm that Agulhas Rings play a very important role in the Indo‐Atlantic interocean exchange of heat and salt. (fsu.edu)

They used data obtained since 2004 from instruments measuring the development of the Gulf Stream system in the Atlantic Ocean as part of the RAPID project. (uni-potsdam.de)
resulting in a gulf stream, no matter which of the 57 approved water genders the oceans grab onto. (wattsupwiththat.com)

As a deep-water mass flows through the ocean and mixes with other water masses, its Nd-isotope signature is incorporated into sediments. (ox.ac.uk)

These include Amazon River outflow that appears as a ribbon-like feature in the tropical Atlantic, a zone of persistent rainfall that spans the tropical Pacific, and melting ice near Earth's poles. (strategies.org)
It shows that the center of circulation was still well defined and Irene was dropping intense rainfall over Cape Hatteras east of the hurricane's center. (cdc.gov)

With collaborators at the universities of Seville, Oxford and Cardiff (UK) they investigated the distribution of isotopes in the Atlantic Ocean that are generated from the natural decay of uranium in seawater and are distributed with the flow of deep waters across the Atlantic basin. (phys.org)
Similar changes in seawater salt concentration are expected to occur in the North Atlantic in the course of climate warming over the next 100 years. (phys.org)
There is a large-scale pattern to the way that seawater moves around the world ocean. (windows2universe.org)
In the Atlantic, the circulation of seawater is driven mainly by temperature differences right now. (windows2universe.org)

large changes in precipitation in the tropics and a strengthening of the North Atlantic storm track. (springer.com)
Winter precipitation is also affected by the changing atmospheric circulation, with localised increases in precipitation associated with more winter storms and a strengthened winter storm track. (springer.com)

In the Atlantic Ocean there is a giant "river" that affects many aspects of life for us terrestrial dwellers, from the regional climates we enjoy to the sea level at our shore. (envirobites.org)
It affects water at the ocean surface and all the way to the deep ocean. (windows2universe.org)

With warm Caribbean waters flowing toward the northeast Atlantic, the climate of northwestern Europe grew warmer. (nasa.gov)

Their paper - 'Major intensification of Atlantic overturning circulation at the onset of Paleogene greenhouse warmth' - published today in Nature Communications, reveals that the more vigorous circulation together with an increase in atmospheric CO2 led to a climatic tipping point. (ox.ac.uk)

This happened when the climate of the North Atlantic region was substantially colder and deep convection was weakened. (phys.org)

Aug. 1, 2023 A patch of ocean in the North Atlantic is stubbornly cooling while much of the planet warms. (sciencedaily.com)

Water is able to move freely between oceans. (windows2universe.org)

The Gravity Field and Steady-State Ocean Circulation Explorer (GOCE) was the first of ESA's Living Planet Programme heavy satellites intended to map in unprecedented detail the Earth's gravity field. (wikipedia.org)
Later results from the GOCE data exposed details in the Earth's mantle including mantle plumes, ancient subduction zones, and remnants of the Tethys Ocean. (wikipedia.org)
Most of Earth's water is stored in the ocean. (strategies.org)

This study shows that to understand the role of ocean circulation in past greenhouse climates, it is important to disentangle geographic controls and climatic driving mechanisms. (ox.ac.uk)

In the North Atlantic, the saltier water from the tropics sinks almost a mile (1,500 meters). (sonnenseite.com)
The cooled water sinks to the deep ocean and travels the world ocean, possibly not surfacing for hundreds or even as much as a thousand years. (windows2universe.org)
What controls the atmospheric CO 2 and CH 4 variations and the partitioning of emissions between the atmosphere, the ocean and sinks in the biosphere? (lu.se)

This may indicate that one deep-water mass, likely originating from the south, made its way through the Atlantic Ocean and filled the basin from deep to intermediate to depths. (ox.ac.uk)

Organisms17

Diseases1

Chemicals and Drugs3

Analytical, Diagnostic and Therapeutic Techniques and Equipment2

Psychiatry and Psychology1

Phenomena and Processes18

Disciplines and Occupations5

Anthropology, Education, Sociology and Social Phenomena1

Information Science1

Health Care12

Geographicals9

Currents17

Thermohaline10

AMOC22

Salinity8

Variability5

Meridional6

Subpolar3

20191

NOAA's Atlantic Oceanograp1

World's2

Latitudes10

South Atlantic9

Cryosphere2

Arctic2

Oceanic2

Patterns5

Impacts5

Uptake2

Freshwater3

Latitude5

Greenhouse gases1

North Atlantic Os1

Causing ocean acidification1

Weaker2

Hemisphere1

Global15

Salty water2

Levke Caesar1

Oceanographic1

Dynamics2

Continents2

Sensitivity1

Northward heat transport2

Changes in the circulation1

Carbon5

Atmosphere-ocean1

Seas1

Climate to change2

Heat9

Gulf2

Water masses1

Rainfall2

Seawater4

Precipitation2

Affects2

Warmer1

Intensification1

Colder1

20231

Freely1

Earth's3

Climatic1

Sinks3

Basin1