Sentences with phrase «change in ocean circulation»

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.

On the one hand, a dangerous change in ocean circulation seemed unlikely in the next century or two.

Are changes in ocean circulation about to turn our lives upside down, or is this something only our grandchildren will have to cope with?

Another contributor is changes in ocean circulation which cause less heat is transported upwards from the deeper, warmer layer.

It appears more than likely that climate change is controlled by variations in solar magnetic activity and by periodic changes in ocean circulation.

They range from changes in ocean circulation patterns caused by glacial meltwater entering the ocean to the cosmic - impact theory.

«The weakening and strengthening of the stratospheric circulation seems to correspond with changes in ocean circulation in the North Atlantic,» Reichler says.

Partly this has to do with changes in ocean circulation taking warmer water deeper and partly as the result of the southern hemisphere having less land mass and more ocean — where the ocean has a higher thermal inertia, meaning that it takes longer for those waters to warm.

Looking at shifts in Manley's winter temperatures from year to year, he says, gives a good reading of important natural cycles that influence climate, such as changes in ocean circulation like the North Atlantic Oscillation.

Dr. Thomas Delworth, a research scientist at the National Oceanic and Atmospheric Administration's Geophysical Fluid Dynamics Laboratory, notes the direct effect of changes in ocean circulation on weather.

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.

That cooling period has been well documented by other studies and has been connected with large changes in ocean circulation.

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.

4 Natural Processes that Change Climate Ocean Circulations Changes in ocean circulation also can result in short - term climate fluctuation EX: El Niño

explore changes in ocean circulation caused by the growth of extensive fast ice and its impact on life in Commonwealth Bay

Using global climate model simulations that replicated the ocean basins and landmasses of this period, it appears that changes in ocean circulation due to warming played a key role.

1 Impact of Global Warming Sea level rising Altered precipitation pattern Change in soil moisture content Increase in some extreme weather More flood more drought Alteration of natural climate cycles like El Nino Changes in the species ranges Changes in the ocean circulation Melting of Arctic permafrost

Changes in ocean circulation triggered by climate change are also washing tropical currents further north along the East Coast, resulting in more rapid regional warming.

One new study shows how the warmth may have triggered huge changes in ocean circulation, setting up an enormous overturning current in the Pacific Ocean, similar to the «conveyor belt» in today's Atlantic that drives weather and climate.

Recent evidence from ice - core drilling in Greenland indicates that similar fluctuations also occurred during the previous interglacial period, possibly due to rapid changes in ocean circulation.

The closest analogies are with climatic shifts associated with abrupt changes in ocean circulation, or the sudden global cooling at the end of the dinosaur era that may have been caused by a large asteroid colliding with the earth.

This leaves all other feedbacks including changes in ocean circulation, water vapour, clouds, and snow as the undetermined factors in past climate changes.

In addition, many scientists suggest that the proximate cause of regional climate change is driven more by natural changes in ocean circulation.

In its discussion of specific examples, such as a catastrophic change in ocean circulation patterns, the report emphasizes predicted risks that the FAR concluded were minimal through the rest of the century.

The report finds no proof to back up IPCC hysteria that blames CO2 for melting polar ice caps, rising sea levels, disastrous changes in ocean circulation, or calamitous differences in precipitation patterns and river flows.

The scientists stress that more work is needed to determine whether changes in ocean circulation initiated the abrupt climate changes or were an intermediary effect initially triggered by something else.

Sensitivity experiments show that atmospheric CO2 closely follows decadal - mean temperature changes when changes in ocean circulation and ocean - sediment interactions are not important.

However, we still lack a quantitative understanding of the physical mechanisms leading to the suggested changes in ocean circulation, which inevitably challenges our interpretation of past and present climates and shakes our confidence in future projections.

Simulated changes in the ocean circulation have strong seasonal features with an amplification of the sea surface temperature (SST) seasonal cycle of 1 °C to 2 °C in most places within the tropics (Zhao et al., 2005), influencing the Indian and African monsoons.

But given the ever - increasing intensity of these impacts - and the fact that the melting of Greenland only continues to speed up - it seems likely the future will bring continued dramatic global changes in ocean circulation.

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This in turn helps explain how factors such as fresh water from melting ice or changes in global wind patterns might lead to large - scale changes in ocean circulation or climate in the future.

These experiments provide new insight into mechanisms of past climate changes on Earth, which have been driven in part by tectonic changes in ocean basins and consequent changes in ocean circulation and heat transport.

25: Coasts), due primarily to land subsidence, 5 although recent research suggests that changes in ocean circulation in the North Atlantic — specifically, a weakening of the Gulf Stream — may also play a role.6

Ocean warming is occurring in concert with the acidification of ocean waters (e.g. Doney et al. 2009), as well as changes in ocean circulation (e.g. Bakun et al. 2009).

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.

That cooling period has been well documented by other studies and has been connected with large changes in ocean circulation.