Sentences with phrase «major circulation of this ocean»

Not exact matches

The pattern the water circulation forms in that region is called the Indian Ocean Gyre, one of five of the major ocean gyres of the world that scientists have identified soOcean Gyre, one of five of the major ocean gyres of the world that scientists have identified soocean gyres of the world that scientists have identified so far.

Primarily there is relatively little known about the dynamics of major ocean currents and circulation and the role of the Southern Oocean currents and circulation and the role of the Southern OceanOcean.

Ongoing changes in ocean circulation patterns, which are helping to drive warm water from other parts of the sea closer to the Antarctic continent, are also believed to be a major factor.

«We argue that it was the establishment of the modern deep ocean circulation — the ocean conveyor — about 2.7 million years ago, and not a major change in carbon dioxide concentration in the atmosphere that triggered an expansion of the ice sheets in the northern hemisphere,» says Stella Woodard, lead author and a post-doctoral researcher in the Department of Marine and Coastal Sciences.

The Malaspina Expedition, led by the Spanish National Research Council, has demonstrated that there are five large accumulations of plastic debris in the open ocean that match with the five major twists of oceanic surface water 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.

A new analysis using changes in cloud cover over the tropical Indo - Pacific Ocean showed that a weakening of a major atmospheric circulation system over the last century is due, in part, to increased greenhouse gas emissions.

We know, however, that rapid warming of the planet increases the risk of crossing climatic points of no return, possibly setting in motion large - scale ocean circulation changes, the loss of major ice sheets, and species extinctions.

Climate change is playing a major role in the slowing down of the circulation of the Atlantic Ocean.

There may be reason to strongly suspect that in any sufficiently complicated dynamical system model (such as climate) with stochastic parameters (e.g., exactly when and where a lightning strike starts a major wildfire or a major submarine earthquake perturbs ocean circulation in a region or a major volcanic eruption introduces stratospheric aerosols), it is almost certain that any given run of the model will have periods of significant deviation from the mean of multiple runs.

After I read the Hatun et al paper I thought the major point of the paper was that ocean circulation and the subpolar gyre is an important but little understood factor in the THC and more research in the area was needed.

There are continuing major questions about the future of the great ice sheets of Greenland and West Antarctica; the thawing of vast deposits of frozen methane; changes in the circulation patterns of the North Atlantic; the potential for runaway warming; and the impacts of ocean carbonization and acidification.

A major ocean circulation change can be viewed as a possible «accident» of climate change — comparable, say, to a nuclear power accident.

Oceanographically, the Southern Ocean is a major driver of global ocean circulation and plays a vital role in interacting with the deep water circulation in each of the Pacific, Atlantic, and Indian ocOcean is a major driver of global ocean circulation and plays a vital role in interacting with the deep water circulation in each of the Pacific, Atlantic, and Indian ococean circulation and plays a vital role in interacting with the deep water circulation in each of the Pacific, Atlantic, and Indian oceans.

Primarily, these variations reflect the influence of major ocean circulation systems that redistribute heat and mass through the oceans.

Imagine if Waxman - Markey had passed within the envelope of both major ocean circulations going negative...... Grand recession / solar minima / end extreme eccentricity minima interglacial or not, we could be sitting around now, swilling non-carbonated champagne, patting each other on the back, celebrating the FACT that we had quelled the heathen devil promulgated sea level rising to the AR4 worst case scenario of 0.59 meters, only to watch it go +6 M etc,.

«The authors write that «the notorious tropical bias problem in climate simulations of global coupled general circulation models manifests itself particularly strongly in the tropical Atlantic,»... they state that «the climate bias problem is still so severe that one of the most basic features of the equatorial Atlantic Ocean — the eastward shoaling thermocline — can not be reproduced by most of the IPCC assessment report models,... as they describe it, «show that the bias in the eastern equatorial Atlantic has a major effect on sea - surface temperature (SST) response to a rapid change in the Atlantic Meridional Overturning Circulation (AMcirculation models manifests itself particularly strongly in the tropical Atlantic,»... they state that «the climate bias problem is still so severe that one of the most basic features of the equatorial Atlantic Ocean — the eastward shoaling thermocline — can not be reproduced by most of the IPCC assessment report models,... as they describe it, «show that the bias in the eastern equatorial Atlantic has a major effect on sea - surface temperature (SST) response to a rapid change in the Atlantic Meridional Overturning Circulation (AMCirculation (AMOC).»

The Atlantic Ocean thermohaline circulation multi-decadal variability is suggested as a major cause of Arctic temperature variation.»

Ongoing changes in ocean circulation patterns, which are helping to drive warm water from other parts of the sea closer to the Antarctic continent, are also believed to be a major factor.

This major change in ocean circulation, along with a climate that had already been slowly cooling for millions of years, may be what led to ice accumulation most of the time — but also to climatic instability, with flips every few thousand years or so between warm - and - wet and cool - and - dry.

The major climate system indices that are operationally used at ICPAC include evolution of monsoons, medium and upper level winds, Madden - Julian Oscillation (MJO), Quasi Biennial Oscillation (QBO), El Niño Southern Oscillation, Indian Ocean dipole (IOD), tropical cyclones, sea surface temperature gradients among many others that have been derived from general circulation.

The most natural type of long term variability is in my view based on slowly varying changes in ocean circulation, which doesn't necessarily involve major transfer of heat from one place to another but influences cloudiness and other large scale weather patterns and through that the net energy flux of the Earth system.

Atlantic Meridional Overturning Circulation A major current in the Atlantic Ocean, characterized by a northward flow of warm, salty water in the upper layers of the Atlantic, and a southward flow of colder water in the deep Atlantic.

Scientists have recently observed major changes in these glaciers: several have broken up at the ocean end (the terminus), and many have doubled the speed at which they are retreating.2, 5 This has meant a major increase in the amount of ice and water they discharge into the ocean, contributing to sea - level rise, which threatens low - lying populations.2, 3,5 Accelerated melting also adds freshwater to the oceans, altering ecosystems and changing ocean circulation and regional weather patterns.7 (See Greenland ice sheet hotspot for more information.)

She and colleagues at the Massachusetts Institute of Technology in Cambridge, Massachusetts used the NASA GISS ocean model and the MIT General Circulation Model to simulate one of the Atlantic's major current systems that delivers absorbed heat and gases to the depths.

The wave pattern undulations of the circulation which The major causes of climate (geography — mountains and oceans, and astronomy — rotations, orbits, and sunshine) are relatively constant.

However, it remains a major scientific challenge to model and project the changes of the magnitude and intensity of subsurface oxygen depletion because it depends on changes in ocean circulation, rates of de-nitrification, and nutrient runoff from land, and because global data coverage for chemical and biological parameters remains poor.

However, the upwelling of cold water off of the east coast of South American is also part of the meridional overturning of the ocean that begins with the sinking of cold salty water near the poles (thermohaline circulation) that forms the characteristic deep water found at the bottom of the major oceans.

«Within the Antarctic Convergence zone, the cold, dense surface waters of the circumpolar ocean sink and flow northward, thus creating a major meridional circulation system.»

This lack of agreement is due to the fact that their models ignore major forcings — both from variations of solar activity and from changes in ocean circulation.

The study argues that ice sheets in contact with the ocean, including the many West Antarctic glaciers that end in floating ice shelves, «are vulnerable to non-linear disintegration» due to a combination of atmospheric warming and major shifts in ocean circulation that would result from a surge in freshwater flowing into the ocean in the North Atlantic (from Greenland), and Southern Ocean (from Antarctocean, including the many West Antarctic glaciers that end in floating ice shelves, «are vulnerable to non-linear disintegration» due to a combination of atmospheric warming and major shifts in ocean circulation that would result from a surge in freshwater flowing into the ocean in the North Atlantic (from Greenland), and Southern Ocean (from Antarctocean circulation that would result from a surge in freshwater flowing into the ocean in the North Atlantic (from Greenland), and Southern Ocean (from Antarctocean in the North Atlantic (from Greenland), and Southern Ocean (from AntarctOcean (from Antarctica).

This all seems to point to some major change in the ocean overturning circulation having occurred in this run, resulting in the cold ocean anomaly south of Greenland and substantial surface cooling in most areas.

Scientists from the Lamont Doherty Earth Observatory (LDEO) have provided new evidence that ocean circulation changes lagged behind, and were not the cause of, major climate changes at the beginning and end of the last ice age (short intervals known as glacial boundaries), according to a study published in the March 2005 issue of Science magazine.