Sentences with phrase «how ocean circulation»

Dissident - that's not how the ocean circulation works.

The dynamics of the Atlantic Meridional Overturning Circulation (AMOC) and its influence on climate is hotly debated and evidence for its behaviour during the Last Interglacial may have potential in determining how ocean circulation and related climatic effects may alter in a future warming world.

To determine how ocean circulation changed, the scientists measured three types of chemical tracers.

By incorporating these data into an M.I.T. model, the result is «realistic descriptions of how ocean circulation evolves over time,» according to the press release.

The findings could help predict how ocean circulation will affect atmospheric CO2 levels in future, says Will Howard of the University of Tasmania, Australia.

I clearly see that the change in surface temperature and TOA radiative forcing simulated by the model depends upon the model complexity, for example, how the ocean circulations are represented.

Kristian, I started by trying to help you understand how ocean circulations make things not as simple as you thought.

Not exact matches

«The Atlantic Ocean surface circulation, and however that changes, has implications for how the rainfall changes on continents.»

Greatly improved computer models began to suggest how such jumps could happen, for example through a change in the circulation of ocean currents.

Lozier (p. 1507) discusses how recent studies have challenged our view of large - scale ocean circulation as a simple conveyor belt, by revealing a more complex and nuanced system that reflects the effects of ocean eddies and surface atmospheric winds on the structure and variability of the ocean's overturning.

So understanding how they dissipate their energy gives us a more accurate picture of ocean circulation.»

«This finding is a major advance in understanding the natural carbon cycle, gained by applying a new understanding about how the «overturning circulation» of the Southern Ocean works,» said lead author Dr Andrew J Watson from the University of Exeter.

He believes that no one has thought of combining the two theories before because it's not an intuitive idea to look at how the effects of changing patterns of ocean circulation, which occur on time scales of thousands of years, would effect global silicate weathering, which in turn controls global climate on time scales of 100s of thousands of years.

Study co-author Katy Sheen, a Postdoctoral Research Fellow from Ocean and Earth Science at the University of Southampton, says: «These findings will help us to understand the processes that drive the ocean circulation and mixing so that we can better predict how our Earth system will respond to the increased levels of carbon dioxide that we have released into the atmosphere.&rOcean and Earth Science at the University of Southampton, says: «These findings will help us to understand the processes that drive the ocean circulation and mixing so that we can better predict how our Earth system will respond to the increased levels of carbon dioxide that we have released into the atmosphere.&rocean circulation and mixing so that we can better predict how our Earth system will respond to the increased levels of carbon dioxide that we have released into the atmosphere.»

And what we see is both how complex climate changes can be and how profound an effect changing patterns of ocean circulation can have on global climate states, if looked at on a geological time scale.»

Its measurements of ocean saltiness will also help scientists understand how changes in salinity affect the deep currents that drive ocean circulation.

Some of the variables controlling the models are not all that well known,» he adds, including forces such as winds, ocean circulation, and how icebergs calve.

«The weaker overturning circulation brings less naturally CO2 - rich deep waters to the surface, which limits how much of that gas in the deep ocean escapes to the atmosphere.

Those three papers explore the global ocean microbiome and plankton interaction networks, as well as how plankton communities change across a key ocean circulation choke point off South Africa.

«People who try to predict the circulation of ocean currents and the atmosphere have to know how energies mix — in this case, the heat energy and heat flux,» Hou said.

They were Jorge Sarmiento, an oceanographer at Princeton University who constructs ocean - circulation models that calculate how much atmospheric carbon dioxide eventually goes into the world's oceans; Eileen Claussen, executive director of the Pew Center for Global Climate Change in Washington, D.C.; and David Keith, a physicist with the University of Calgary in Alberta who designs technological solutions to the global warming problem.

However, Khazendar and Scheuchl said, researchers need more information on the shape of the bedrock and seafloor beneath the ice, as well as more data on ocean circulation and temperatures, to be able to better project how much ice these glaciers will contribute to the ocean in a changing climate.

«These results will have wider reaching implications, such as how we map the circulation of the world's oceans in the past, which are affected by how quickly the sea floor is moving up and down and blocking the path of water currents,» said Hoggard.

Discussion requires examination of how the freshwater injections alter the ocean circulation and internal ocean temperature.

In the paper Gray makes many extravagant claims about how supposed changes in the THC accounted for various 20th century climate changes («I judge our present global ocean circulation conditions to be similar to that of the period of the early 1940s when the globe had shown great warming since 1910, and there was concern as to whether this 1910 - 1940 global warming would continue.

The importance of heterogeneous human climate forcings does not diminish the important of added greenhouse gases, but does indicate that more attention needs to be given to these other human climate forcings, including how they can modify atmospheric and ocean circulation features.

Other research is looking into questions about how seamount populations change in response to climate - induced shifts in ocean circulation and whether habitats disturbed by human activity can recover.

That matters because the trickiest part of global climate models appears to be how they handle ocean - atmosphere interactions, and I really have no idea how well they link changes in local wind - driven upwelling to the net thermohaline circulation.

If somehow and I can't possibly imagine how, there was a huge increase in circulation between the surface and the deeper layers of the ocean, that would be disastrous for global temperatures but not upwards but downwards!

There is so little understanding about how the ocean parses its response to forcings by 1) suppressing (local convective scale) deep water formation where excessive warming patterns are changed, 2) enhancing (local convective scale) deep water formation where the changed excessive warming patterns are co-located with increased evaporation and increased salinity, and 3) shifting favored deep water formation locations as a result of a) shifted patterns of enhanced warming, b) shifted patterns of enhanced salinity and c) shifted patterns of circulation which transport these enhanced ocean features to critically altered destinations.

I understand that ocean circulation is complicated but I have been trying to find out how much is known about the flows of underground rivers and where they enter the ocean.

The improved computer models also began to suggest how such jumps could happen, for example through a change in the circulation of ocean currents.

And how much of the hiatus is cloud caused in step changes in ocean and atmospheric circulation.

For example, conditions at the poles affect how much heat is retained by the earth because of the reflective properties of ice and snow, the world's ocean circulation depends on sinking in polar regions, and melting of the Antarctic and Greenland ice sheets could have drastic effects on sea level.

But this opens a whole other can of worms re how ocean dynamics would be affected and what a globally shallow ocean would do to circulation as well.

Francis, who wasn't involved with either study, is one of the main proponents of an idea that by altering how much heat the ocean lets out, sea ice melt and Arctic warming can also change atmospheric circulation patterns, in particular by making the jet stream form larger peaks, or highs, and troughs, or lows.

The aim of the C - SIDE working group is to reconstruct changes in sea - ice extent in the Southern Ocean for the past 130,000 years, reconstruct how sea - ice cover responded to global cooling as the Earth entered a glacial cycle, and to better understand how sea - ice cover may have influenced nutrient cycling, ocean productivity, air - sea gas exchange, and circulation dynaOcean for the past 130,000 years, reconstruct how sea - ice cover responded to global cooling as the Earth entered a glacial cycle, and to better understand how sea - ice cover may have influenced nutrient cycling, ocean productivity, air - sea gas exchange, and circulation dynaocean productivity, air - sea gas exchange, and circulation dynamics.

A new study helps clarify how past and future coastal sea level changes are related to local winds and large - scale ocean circulation.

The 17 scientists analyzed how an influx of cold freshwater from the planet's melting ice sheets will disrupt the ocean's circulation — a factor the authors say has not been fully explored in the scientific literature to date.

A new study, published in Journal of Geophysical Research - Oceans, helps clarify how past and future coastal sea level changes are related to local winds and large - scale ocean circulation.

As for strong subsurface ocean storage giving more time for humans their act together, that really depends how much longer this (cool surface) phase of the circulation lasts.

The issue is that differences in mineral content, salinity, density, and temperature all affect how the ocean reacts to, and drives, changes in weather patterns, climate variations over years or decades, ocean current circulation, etc..

I was based in the Meteorology Department, but my work focused on understanding the large - scale circulation of the ocean and how it responds to change.

To test how well a climate model predicts possible changes in ocean circulation due to climate change, GISS scientists have simulated the effects of a massive flood of fresh water some 8000 years ago.

Investigate how surface exchanges of buoyancy and momentum between the ocean and the atmosphere / cryosphere drive the AMOC circulation across a broad range of timescales from monthly to millennial (i.e., quasi-steady-state).

The role of the time accurate models is to describe, what happens to atmospheric and ocean circulation and how clouds change.

«The results demonstrate how rapidly rising temperatures in the atmosphere can affect ocean circulation, cutting off oxygen to lower depths and extinguishing most life,» says NCAR scientist Jeffrey Kiehl, the lead author.

Those numerous posts document, illustrate and discuss how ENSO causes variations in atmospheric circulation, ocean currents, Downward Shortwave Radiation, cloud cover, precipitation, trade wind strength in the Pacific and Atlantic, etc..

There is a similar theory for how African climate was affected by New Guinea moving northward to close off the easy circulation between Pacific and Indian Oceans: Mark A. Cane, Peter Molnar, «Closing of the Indonesian seaway as a precursor to east African aridification around 3 — 4 million years ago,» Nature 411:157 - 162 (10 May 2001).

Lamont's Ryan Abernathey and Richard Seager are studying how changes in the ocean cause sea surface temperature to vary, and how these anomalies drive changes in atmospheric circulation to create extreme weather events.