Sentences with phrase «then poleward»

The ocean currents carry this sunlight - warmed water to the west and then poleward.

Not exact matches

Then there is the increased poleward flow of the ocean currents — partly driven by Hurricanes, I understand.

Whereas the Walker Circulation (or «Walker Cell») refers to an air flow parallel with the equator — all in the tropics — the Hadley Cell involves air rising in the tropics (follows the solar equator and gives rise to the Inter-Tropical Convergence Zone (ITCZ) which then flows polewards before sinking in the subtropics.

Indeed that poleward shift was supposed to be accompanied by a tropospheric hot spot as the enhanced upward energy flux was then constrained by extra GHGs so that the «surplus» energy was retained in the troposphere and thereby denied to the stratosphere which then cooled as per observations and despite the «normal» warming of the stratosphere that would otherwise have been expected from the highly active sun at the time.

The cooler Arctic then promoted formation of North Atlantic Deep Water (NADW in the upper frame of Figure 13) as salty Atlantic waters transported poleward cooled and brine rejection increased as more Arctic sea ice formed.

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.

If you have faith in the climate models and have any knowledge of what they do with reduced poleward ocean heat transport, then you are expecting cooling unless the AMOC should speed back up.

Conversely, during low solar activity during the Little Ice Age, transport of warm water was reduced by 10 % and Arctic sea ice increased.17 Although it is not a situation I would ever hope for, if history repeats itself, then natural climate dynamics of the past suggest, the current drop in the sun's output will produce a similar cooler climate, and it will likely be detected first as a slow down in the poleward transport of ocean heat.22 Should we prepare for this possibility?

The post 1995 AMO and Arctic warming is the natural response to the decline in solar wind pressure since then, by it increasing negative NAO / AO conditions, and thereby increasing the poleward heat transports.

The average temperatures poleward of 60Lats then are still going to be cool and the rest of the world is not going to warm by much.

The Oceans store up heat near the equator, then pumps it poleward where the heat is radiated to space.

and the area of the earth poleward from the 60 latitudes constitutes ~; 13.5 % of the globe, then this area is responsible for 0.135 x 3.0 = 0.4 C degrees contributed to global temperature anomaly.

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

23) A returning warm pulse will try to expand the tropical air masses as more energy is released and will try to push the air circulation systems poleward against whatever resistance is being supplied at the time by the then level of solar surface activity.

If the surface pressure distribution begins to shift to a more meridional / equatorward pattern as it did around 2000 then if previously it was in a poleward / zonal mode it is clear that warming will have ceased and cooling has begun due to more global cloudiness and less solar energy getting into the oceans.

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).

A returning warm pulse will try to expand the tropical air masses as more energy is released and will try to push the air circulation systems poleward against whatever resistance is being supplied at the time by the then level of solar surface turbulence.

In fact, the opposite could turn out to be true (i.e. that due to higher insolation / energy, more heat is redistributed poleward more efficiently, and HADCRUT would then demonstrate a negative bias).

I presume the answer lies in admitting more of the complexity of real case into the computations: if not the spinning, irregularly surfaced sphere, then at least the huge differential in solar heating «twixt the equatorial and the polar regions, the great daily poleward energy transfers which compensate thanks in large part to massive convective systems.

back to the horizontal gradient, if the upper tropospheric thermal wind shear increase is greater than the decrease of the lower layer, then maybe the overall baroclinic instability would be stronger — but currently the upper level eddy circulations do not transport much heat poleward, so would the structure of cyclones change so that a deeper layer of air is involved in the thermal advection, compensating for a weaker temperature gradient?