Sentences with phrase «at poles»

The solar wind bursts create a space charge differential in the ionosphere which causes a current flow at the poles and at the equator, with the return path being through the conductive ocean.

At the same time that record heat is occurring in the polar regions and elsewhere, snow is forecasted (scheduled) to fall as far south as Chihuahua, Mexico (2017 also saw record low ice at BOTH poles).

[6] The amount of sunlight absorbed at the surface varies strongly with latitude, being greater at the equator than at the poles, and this engenders fluid motion in both the atmosphere and ocean that acts to redistribute heat from the equator towards the poles, thereby reducing the temperature gradients that would exist in the absence of fluid motion.

Well of course the earth is not a rotating sphere; it is an oblate spheroid, that is flatter at the poles.

UV interacts with stratospheric ozone modulating atmospheric pathways and varying surface pressure at the poles.

Maybe doing this at the poles greatly improves the economics of the process.

I supposed theoretically it could happen at the poles.

Like all heat engines, it has a hot end (the equator where the energy enters) and a cold end (two of them at the poles, to which the extra energy is transferred that is not re-radiated at the equator).

The gyres spin up with negative polar annular modes — high pressure at the poles push circumpolar wind and storms into lower latitudes.

When polar ice melts the earth changes shape: mass (ice) which was concentrated at the poles, with a short arm of inertia, is spread evenly around the ocean surface, averaging something like 63 degrees latitude.

It clearly involves surface pressure at the poles — it says so — and is concerned with NH blocking patterns involving the polar annular mode in a low solar UV environment.

There have only been three coldhouse periods (i.e. with ice at the poles) in the past 550 million years (the time that multi-cell animal life has been thriving on the planet) and we are in the third one now.

When the Earth is in its «Ice House» climate mode, there is ice at the poles.

Having land at the poles must have a huge impact.

Due to the earth's spherical shape and orbital effects, annual incoming solar radiation at the poles is so low, polar regions always radiate more heat back to space than is ever absorbed locally.

The Magnetic fields would decline at the poles first allowing them to warm up.

This means that the ice volume at the poles and northern latitudes has increased and that means that albedo has increased and it means the oceans are dropping and not rising.

As I said before icecaps existed at both poles when C02 concentrations were 100 times the current levels.

Even though the average temperature stayed the same, there were still regional changes, with cooling in the tropics and warming at both poles (particularly in their respective winters):

Ocean surface heat and anomalous warmth at the poles were deciding factors for the new September record with very few regions of the global ocean surface showing cooler than average temps and with extraordinary heat at the poles, especially in Antarctica.

The variation in air temperature would mainly be at the poles and regions where the thermal mass is lower.

We know temperatures at both poles are warming in recent times.

«The potential for harm in lower latitudes may actually be worse than at the poles,» she said.

The backdrop to the renewed interest in asserting territorial claims on the Arctic and Antarctic by states such as Canada, the United States, Russia and the United Kingdom is that global warming, and in particular the warming of oceans, is leading to accelerating erosion of the ice mass at both poles.

One day, no matter what we do, this cool period we're in now will end and we'll have to contend with palm trees on the North Slope and in Siberial, and NO Ice at the poles.

For example, conditions at the poles affect how much heat is retained by the earth because of the reflective properties of ice and snow, the world's ocean circulation depends on sinking in polar regions, and melting of the Antarctic and Greenland ice sheets could have drastic effects on sea level.

Based on the cycle, it would suggest that we are heading into another Ice Age period of cooling where global temperatures will drop and ice will again form heavily at the poles.

She said ozone had been declining seriously since the 1980s, but while the banning of CFCs was leading to a recovery at the poles, this did not appear to be true for the lower latitudes.

«The decreases in ozone are less than we saw at the poles before the Montreal Protocol was enacted, but UV radiation is more intense in these regions and more people live there.»

CFCs and the other gases were banned under an international agreement, the Montreal Protocol, and since then parts of the layer have been recovering, particularly at the poles.

It talked about how cold water sank at the poles and this dragged warmer water from the equator to replace it.

At Venus distance the oceans should be heated to higher temperature, ensuring that there was no permanent ice cap at the poles.

After all, the planet is the largest at the equator and is smaller at the poles.

An international research team says the ozone, which protects humans and other species from harmful ultraviolet radiation, is continuing to recover at the poles.

«If you take that and extrapolate that into the future, warming could be larger at the poles.

In November, even CNN reported on the record - low ice extent at both poles.

4) I say that when air moves from a location with high rotational velocity (m / s following a circumference) to a location with a low angular velocity, the air will conserve angular momentum and hence be diverted at right angles to the the initial impetus, resulting (at the poles) in a vortex around the pole.

E.M. Smith: (16:23:55): From this I would assert that the hysteresis balance of the system is driven by land / ice at the poles, not by the nature of water.

Either way, this doubling would cause roughly 2 degrees Celsius of global warming on average, but it would be much more dramatic at the poles.

It stands to reason that Temperature increases will be larger at the poles than at the equator.

If something triggers a cool spell, such as an orbital variation reducing incident sunlight, then water freezes at the poles, which increases the Earth's albedo, while the cooler oceans absorb more CO2, reducing the greenhouse effect.

It is not that the polar regions are amplifying the warming «going on» at lower latitudes, it is that any warming going on AT THE POLES is amplified through inherent positive feedback processes AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc..

[2] The future toward which we now rush is unbelievable, even though the evidence of retreating glaciers, massive ice break - ups at both poles, and a melting permafrost is before our eyes.

Ice at the poles does not change the amount of radiation reflected out of Earth's system near as effectively as ice at low latitudes.

That's melting the ice at both poles, increasing sea levels.

As I pointed out yesterday the following seems to show a worrying forecast at BOTH poles over the next 8 months.

It is not that the polar regions are amplifying the warming «going on» at lower latitudes, it is that any warming going on AT THE POLES is amplified through inherent positive feedback processes AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...»

I got to spend time with Dr. Pettit when we both participated in an event called Polar - Palooza, kind of a traveling road show, sponsored by the National Science Foundation, celebrating science at the poles.

And the increasing cold at the poles seems strange.

The vast majority of scientists agree that human activities are influencing changes to the climate — especially at the poles — and believe that the situation requires serious attention.