Sentences with phrase «also poleward»

We have analyzed the data (and also the dat poleward of 49N / S with particular interest in the land surface temperatures through the 1930 - 1970 period.
Note that there is also poleward transport in the shallow currents at the western edge of each subtropical ocean gyre - known as western boundary currents.
There are also poleward shifts in the vast atmospheric patterns that control where rain falls.

Not exact matches

«We think, but have not yet been able to establish, that this is connected to independently observed poleward expansion of the Hadley circulation,» Emanuel says, referring to a large - scale pattern of global winds, which in recent years has also moved further poleward.
Widening of the tropics would also probably be associated with poleward movement of major extratropical climate zones due to changes in the position of jet streams, storm tracks, mean position of high and low pressure systems, and associated precipitation regimes.
The results of the study, published today in the journal Nature, show that over the last 30 years, tropical cyclones — also known as hurricanes or typhoons — are moving poleward at a rate of about 33 miles per decade in the Northern Hemisphere and 38 miles per decade in the Southern Hemisphere.
They move westward with the trade winds and also drift slowly poleward.
Furthermore, even if the net meridional overturning circulation, which is broader than just the Gulf Stream, slows, that doesn't mean that the poleward heat transport will be reduced, as a warmer wetter atmosphere can also transport a great deal of heat (latent heat) to poleward regions, which seems to be what has been happening.
Also, the overall number of ozone molecules destroyed in a vertical column of air was pretty much the same as the number of molecules transported into this column by the average poleward and downward transport of air in the stratosphere.
«If a poleward displacement of the mid-latitude storm tracks also occurs, this will shift mid-latitude precipitation poleward, impacting regional agriculture, economy, and society.»
An important one is additional poleward energy transport, but contributions from local high - latitude water vapour, cloud and temperature feedbacks have also been found.
However, there is also the expansion of the Hadley Cells where water vapor from tropical ocean evaporation rises, water in the form of rain falls out as the air cools with increased altitude, then dry air descends at poleward edge of the cells in the dry subtropics.
Also large amount of ocean heat travels poleward [such as with gulf stream heating Europe].
Models also show that a change in poleward ocean heat transport can create large changes in the climate.
Challenges also remain for altimeter measurements poleward of the 66 ° turning latitude of the reference missions and in regions covered by sea ice.»
12: Indigenous Peoples).91, 101 Warming also releases human - caused pollutants, such as poleward - transported mercury and organic pesticides, from thawing permafrost and brings new diseases to Arctic plants and animals, including subsistence food species, posing new health challenges, especially to rural communities.165, 166 Positive health effects of warming include a longer growing season for gardening and agriculture.5, 167
We found that the two quantities that correlate significantly and consistently in all ocean basins and seasons are the Hadley cell extent and the high cloud field: when the Hadley cell edge moves poleward, the high cloud field also shifts towards the poles, and vice versa.
Their radiation data also excludes areas poleward of 60 degrees, which may also underestimate sensitivity.
As you may recall I say that the ocean phases also have an effect so if you have a weak ocean phase when there are a lot of sunspots the lack of poleward pressure from the weak oceanic influence fails to take full advantage and allows the AO to remain stronger than it otherwise would be on the basis of solar activity levels alone.
Additionally, the intensified winds of the mid-latitude westerlies, and a poleward shift of the strongest winds toward the Antarctic Circumpolar Current will also lead to stronger convergence of surface currents, and stronger downward heat transport.
However, it must be borne in mind that the MOC can also include shallower, wind - driven overturning cells such as occur in the upper ocean in the tropics and subtropics, in which warm (light) waters moving poleward are transformed to slightly denser waters and subducted equatorward at deeper levels.
Due to climate change the Hadley Cell intensifies: More air moves up in the tropics (so more energy and rain in the Intertropical Convergance Zon (ITCZ — monsoon) and more air moves down in the subtropics, that also expand in poleward direction.
Furthermore, even if the net meridional overturning circulation, which is broader than just the Gulf Stream, slows, that doesn't mean that the poleward heat transport will be reduced, as a warmer wetter atmosphere can also transport a great deal of heat (latent heat) to poleward regions, which seems to be what has been happening.
There is also an increasing poleward transport of water vapour from lower latitudes.
Additionally, there will also be changes in the poleward energy transport, which is simulated to increase with rising temperature [15].
There may also be additive effects, i.e. natural variability imposed on polewards heat transfer and sea ice (the Artic Oscillation, say).
In another recent study, NCAR researcher Jeffrey Yin used computer climate simulations to show that large - scale rain and snow storms known as frontal storms are moving polewards, driven also by global warming.
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