Sentences with phrase «moves poleward»

A low pressure zone at 60 ° latitude that moves toward the equator, or a high pressure zone at 30 ° latitude that moves poleward, will accelerate the Westerlies of the Ferrel cell.

As the air moves poleward, it cools, becomes more dense, and descends at about the 30th parallel, creating a high - pressure area.

At the 60th parallel, the air rises to the tropopause (about 8 km at this latitude) and moves poleward.

At present they are limited to guesses about ENSO but have nothing adequate about any other oceanic cycles and nothing about air circulation shifts apart from seasonal changes and a simple observation that warming moves them poleward.

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.

I would presume that if the tropics warm, it will evaporate more water, which as it moves poleward has to rain out.

Some air moves poleward, while the remainder moves equatorward.

Extratropical cyclones have three stages of expansion: the developing stage, in which an undulating wave develops along the front; the mature stage, in which sinking cold air sweeps equatorward west of the surface low - pressure centre and ascending warm air moves poleward east of the cyclone; and the occluded stage, in which the warm air is entrained within and moved above the polar air and becomes separated from the source region of the tropical air.

A parcel of air picking up water vapor at (near) the ITCZ moves poleward as well as rising.

As the air rises and moves poleward, it dries, cools, sinks, and returns back to the surface completing this atmospheric cycle both north and south of the equator.

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.

Heat might be expected to harm a crop (or force farms to move poleward), but added carbon dioxide, which all plants use to make organic matter, might act as a fertilizer.

Some of the storms that begin in the Gulf of Mexico may move poleward and eastward right from their inception.

«Fish moving poleward at rate of 26 kilometers per decade.»

«The jet streams mark the edge of the tropics, so if they are moving poleward that means the tropics are getting wider,» explains John Wallace, Fus colleague at the University of Washington and coauthor of the report.

Despite large year - to - year variability of temperature, decadal averages reveal isotherms (lines of a given average temperature) moving poleward at a typical rate of the order of 100 km / decade in the past three decades [101], although the range shifts for specific species follow more complex patterns [102].

Forests and woodlands buffer heating, give the small scurrying creatures and the sessile plants time to try an move poleward.

So for AGW theory to have been correct we would have to have seen that hot spot at the top of the troposphere and the presence of that hotspot would have prevented the jets moving poleward, indeed it should have sent them equatorward instead because it would have had the same effect as a reduction of the height of the tropopause and an enhancement of the intensity of the tropopause.

For falsification we would need to observe events such as the mid latitude jets moving poleward during a cooling oceanic phase and a period of quiet sun or the ITCZ moving northward whilst the two jets moved equatorward or the stratosphere, troposphere and upper atmosphere all warming or cooling in tandem or perhaps an unusually negative Arctic Oscillation throughout a period of high solar activity and a warming ocean phase.

But the broad long - term changes in the climate projected by models are for trade winds to weaken while mid-latitude westerly winds strengthen and move poleward.

Satellite temperature measurements show similar warming; most glaciers are shrinking; lakes and rivers are freezing later and thawing sooner; oceans are expanding; plant and animal communities are mostly moving poleward.

f) plant and animal communities are mostly moving poleward.

I have seen no «plants moving poleward».

However the jets certainly moved poleward during the late 20th century warming spell as per this:

Then for the next ten years until the late 90s albedo gradually declined as the jets moved poleward and the troposphere warmed.

Since warm air is being moved poleward at low altitudes, the wind flow is no longer associated with the direct heat engine of the Hadley cell.

The tropopause normally rises when the troposphere is warming and the jets are moving poleward.

One way this might work is the Jet Streams move poleward temporarily.

Despite large year - to - year variability of temperature, decadal averages reveal isotherms (lines of a given average temperature) moving poleward at a typical rate of the order of 100 km / decade in the past three decades [101], although the range shifts for specific species follow more complex patterns [102].

In 1982, HH Lamb wrote about how the ranges of birds and fishes had moved poleward in the first half of the 20thC.

This unusual flow pattern allowed cold air to spill southwards and be replaced by warm air moving poleward.»

These zones can move poleward or equatorward, in response to changes in the Earth's energy budget.

A similar air mass rising on the other side of the equator forces those rising air masses to move poleward.

In the sea, marine ecosystems will move poleward.

A strong high, moving polewards may bring westerly winds for days.

Marine species have been moving poleward at about 7.2 km / yr (reported as 72 + 13.5 km / decade)(Poloczanska et al., 2013).

Recent meta - analyses indicate that on average, examined terrestrial species have been moving poleward about 1.76 km / yr (reported as 17.6 + 2.9 km / decade), apparently keeping pace with regional temperature change, although species range shifts to higher elevations have on average lagged behind climate (Chen et al., 2011).

Northern - latitude countries and high - altitude regions may become increasingly important for biodiversity and species conservation as the ranges of species distributions move poleward and upward in response to climate change (Berry et al., 2006).

That makes sense because a cooler stratosphere weakens the inversion at the tropopause so as to provide reduced resistance to upward energy transport which would allow the jets to move poleward.

We have seen the jet streams move poleward when the AO is positive so in the Mediaeval Warm Period we must have had a positive AO despite the more active sun because the jets seem to have been even more poleward then than at the peak of the Modern Warm Period (so far).

For true falsification we would need to observe events such as the mid latitude jets moving poleward during a cooling oceanic phase and a period of quiet sun or the ITCZ moving northward whilst the two jets moved equatorward or the stratosphere, troposphere and upper atmosphere all warming or cooling in tandem or perhaps an unusually powerful Arctic Oscillation throughout a period of high solar turbulence and a warming ocean phase.

The air circulation systems in both hemispheres move poleward and the ITCZ moves further north of the equator as the speed of the hydrological cycle increases due to the cooler stratosphere increasing the temperature differential between stratosphere and surface.

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.

The stratosphere cooled, the polar oscillations weakened (positive) and the jets moved poleward throughout the active solar spell.

Stephen Wilde says: We have seen the jet streams move poleward when the AO is positive so in the Mediaeval Warm Period we must have had a positive AO despite the more active sun All you are saying is that clearly [«despite»] the AO has little if anything to do with the Sun.

During the recnt warming spell the jets moved poleward.

The reef will «just» move poleward, This is about like not worrying how farming will be able to move to the wonderful glacial till, shield rock, and muskeg «soils» as more southerly areas become too warm to grow certain crops effectively.

Additionally reflectance decreases as the clouds move poleward.

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.

Cloudiness and albedo actually decline when the system warms up because as part of the process the jets behave in a more zonal fashion and move poleward.