Sentences with phrase «changes in circulation patterns»

Besides, I am currently at the WCRP conference in Denver, where the question of changes in circulation patterns due to anthropogenic climate change as an issue for attribution of events has been put up (but not answered...) just this morning...

Even modest changes in circulation patterns could significantly alter air temperature trends

He has detected 13 UHI - affected stations and a number for which data were confused by site changes or changes in circulation patterns.

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.

«The Greenland ice sheet as a whole is shrinking, melting and reducing in size as the result of globally changing air and ocean temperatures and associated changes in circulation patterns in both the ocean and atmosphere,» Muenchow said.

Although the rising average global surface temperature is an indicator of the degree of disruption that we have imposed on the global climate system, what's actually happening involves changes in circulation patterns, changes in precipitation patterns, and changes in extremes.

Many previous publications noted the rather sudden and decisive change in the circulation patterns and upwelling characteristics in the Pacific that began around 1976 and continued to 1998.

This seems to be caused primarily by a change in the circulation patterns in the Pacific Ocean, although solar cooling is also contributing to an extent that is uncertain.

Not exact matches

«These changes in large - scale circulation patterns during summer are especially pronounced over the Arctic and the North Atlantic.

Co-author Professor Jonathan Bamber, based at the University of Bristol, and President of the European Geoscience Union (EGU), added: «We are seeing changes in the large - scale circulation patterns, which leads to more frequent sunshine and higher amounts of solar energy reaching the surface of the ice sheet.

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

Alternatively, the loss of ice may have changed air circulation patterns above the Arctic in ways that have similarly «locked in» the change.

Lyon thinks this change in temperatures has altered atmospheric circulation patterns, cutting off the supply of moisture to east Africa (Geophysical Research Letters, DOI: 10.1029 / 2011GL050337).

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.

World weather patterns will also start to change, as a frigid Antarctic continent and the icy ocean currents that surround it play an important role in global atmospheric and oceanic circulation.

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.

The second theory focuses on dramatic changes in the patterns of ocean circulation.

The deepening of the Drake Passage resulted in a change in ocean circulation that resulted in warm waters being directed northwards in circulation patterns like those found in the Gulf Stream that currently warms northwestern Europe.

The researchers warn, however, that the future evolution of the AMO remains uncertain, with many factors potentially affecting how it interacts with atmospheric circulation patterns, such as Arctic sea ice loss, changes in solar radiation, volcanic eruptions and concentrations of greenhouse gases in the atmosphere.

This new information can be incorporated into current climate models to predict future changes in the magnitude and pattern of the Walker Circulation due to increased greenhouse gas emissions.

They will look for evidence of temperature changes caused by ocean circulation patterns in both the North Atlantic and tropical Pacific Oceans, which drive precipitation in Tibet as well as the Indian monsoons.

Previously, scientists proposed that changes in the circulation of molten material in Earth's mantle — the slow - flowing material that lies between our planet's core and its crust — pushed the terrain east of the Andes upward, thereby changing drainage patterns.

«When water's unusually warm off our coast, it's because the circulation and patterns in the atmosphere has changed, bringing warm water from elsewhere — and this is happening at the same time that we also see high domoic acid in shellfish.

They showed that temperatures warmed in both the North Pacific and Greenland, likely due to changes in ocean circulation patterns.

«Unabated climate change will probably further weaken summer circulation patterns which could thus aggravate the risk of heat waves,» says co-author Jascha Lehmann «Remarkably, climate simulations for the next decades, the CMIP5, show the same link that we found in observations.

[Response: Well, something like a circulation changed forced by the NAO pattern (which may in turn be affected by greenhouse gases) might cause an increase in European air temperatures, which in turn would allow low level moisture to increase if there is enough moisture supply, which would then constitute an amplification of a signal driven remotely.

As discussed in the Climate chapter, large - scale atmospheric circulation patterns connected to changes in sea - surface temperatures strongly influence natural variations in precipitation and temperature (e.g., Cayan et al. 1999; Mantua and Hare 2002).

The first collection of papers establishes that (a) decadal and multi-decadal ocean circulation patterns (AMO, PDO, NAO, ENSO) have significantly modulated precipitation and temperature changes in recent decades, and the second collection of papers confirm that (b) natural ocean oscillations are, in turn, modulated by solar activity.

Natural factors contributing to past climate change are well documented and include changes in atmospheric chemistry, ocean circulation patterns, solar radiation intensity, snow and ice cover, Earth's orbital cycle around the sun, continental position, and volcanic eruptions.

Resulting changes in the atmospheric temperature structure, including from surface dimming, in turn affect regional circulation and precipitation patterns.

However, no change in the nature or terms of the scheme, known as fundamental attributes of the scheme e.g. structure, investment pattern, etc., can be carried out unless a written communication is sent to each unit holder and an advertisement is given in one English daily newspaper having nationwide circulation and in a newspaper published in the language of the region where the head office of the mutual fund is situated.

This can only result in major changes to the earth's climate, oceanic circulation patterns, etc..

The assessment considered the impacts of several key drivers of climate change: sea level change; alterations in precipitation patterns and subsequent delivery of freshwater, nutrients, and sediment; increased ocean temperature; alterations in circulation patterns; changes in frequency and intensity of coastal storms; and increased levels of atmospheric CO2.

Would somebody here, like to explain to me how we can lose Arctic Sea ice (in part or in whole) without changing the atmospheric circulation patterns?

There has been an ongoing debate, both in and outside the scientific community, whether rapid climate change in the Arctic might affect circulation patterns in the mid-latitudes, and thereby possibly the frequency or intensity of extreme weather events.

However, if the loss of Arctic Sea ice has significantly changed global atmospheric circulation patterns, then we are dealing with a different system that has only been in existence since 2007, and we do not know how often to expect crop failures.

How do the complex feedbacks change atmospheric circulation patterns, and the interaction of these patterns to changes in ice cap topography (e.g. at the LGM)?

And given the fact that land warms more quickly than ocean, resulting in areas of low pressure over land, changing patterns of atmospheric and oceanic circulation are bringing them to the coasts — where so much life's diversity is found.

I'm still inclined to think that subtle changes in ocean circulation patterns, with resulting local effects on climate, are more likley to be responsible.

The effects of circulation change in the North Atlantic are different to (potentially solar - driven) rainfall variability in the sub-tropics and are different again from the impacts of changing frequency and intensity in El Nino patterns.

These shape the 4 - dimensional pattern of temperature and other changes — the patterns of circulation, latent heating, and precipitation will shift, as can the cycles driven the imposed diurnal and seasonal cycles in incident solar radiation; the texture of internal variability can also shift.

All climate models tell us that it is the Arctic sea ice cover that declines first, and that Antarctic ice extent falls only later, and may even (as observed) temporarily increase in response to changing patterns of atmospheric circulation.

The jet stream off the East Coast of the United States controls an important climate pattern in the Atlantic... «The North Atlantic Oscillation is really driving these changes in ocean circulation,» said Gerald McCarthy, lead study author and an oceanographer at the University of Southampton in the United Kingdom....

There is also a natural variability of the climate system (about a zero reference point) that produces El Nino and La Nina effects arising from changes in ocean circulation patterns that can make the global temperature increase or decrease, over and above the global warming due to CO2.

Its findings suggest that changing storm patterns and the ensuing droughts are due to a southern shift in the Hadley cell, the large - scale pattern of atmospheric circulation that transports heat from the tropics to the subtropics.

Abstract: «The patterns of time / space changes in near - surface temperature due to the separate forcing components are simulated with a coupled atmosphere — ocean general circulation model»

That, combined with the change in location of the convection, cause drastic changes in global atmospheric circulation patterns.

Diminishing Arctic sea ice can cause changes in atmospheric circulation that lead to a circulation pattern that is different than the «negative phase» of the Arctic Oscillation.

I will now analyse how the system could work and show that composition changes not involving changes in mass only affect atmospheric volume and circulation patterns and not surface temperature.

Shifting currents, increased freshwater input from melting sea ice and glaciers, and changes in upper and lower sea - level circulation patterns are already occurring, and they'll progress rapidly if anthropogenic greenhouse gas emission continues under a business - as - usual scenario.