Sentences with phrase «ocean circulation seemed»

On the one hand, a dangerous change in ocean circulation seemed unlikely in the next century or two.

Further suggestions that D / O events in Greenland are generated by shifts in the North Atlantic ocean circulation seem highly implausible, given the weak contribution of the high latitude ocean to the meridional flux of heat.

Not exact matches

Your statement that «Thus it is natural to look at the real world and see whether there is evidence that it behaves in the same way (and it appears to, since model hindcasts of past changes match observations very well)» seems to indicate that you think there will be no changes in ocean circulation or land use trends, nor any subsequent changes in cloud responses thereto or other atmospheric circulation.

One does not have to worry about instabilities associated with ice sheets, feedback from the carbon cycle (even though this would seem to already be coming into play), or instabilities associated with ocean circulation.

For weather predictions, accuracy disappears within a few weeks — but for ocean forecasts, accuracy seems to have decadal scale accuracy — and when you go to climate forcing effects, the timescale moves toward centuries, with the big uncertainties being ice sheet dynamics, changes in ocean circulation and the biosphere response.

Your statement that «Thus it is natural to look at the real world and see whether there is evidence that it behaves in the same way (and it appears to, since model hindcasts of past changes match observations very well)» seems to indicate that you think there will be no changes in ocean circulation or land use trends, nor any subsequent changes in cloud responses thereto or other atmospheric circulation.

The weakening of the Walker circulation arises in these models from processes that are fundamentally different from those of El Nià ± o — and is present in both mixed - layer and full - ocean coupled models, so is not dependent on the models» ability to represent Kelvin waves (by the way, most of the IPCC - AR4 models have sufficient oceanic resolution to represent Kelvin waves and the physics behind them is quite simple — so of all the model deficiencies to focus on this one seems a little odd).

Solar data seems to have such a millenarian cycle that could drive a large internal variability in the ocean circulation, for example.

1) It seems to me that the key mechanism for any impact must be the changes that increased arctic ocean temperatures will impose on the atmospheric circulation feature known as the Polar Cell, and via this on the Ferrel cell which sits over the mid latitudes.

We don't need to assume any contribution at all from GHGs (unless of course, GHGs are what trigger the ocean circulation changes, which doesn't seem likely).

The interesting thing from a scientific perspective is that specifying the surface temperature in this region seems to anchor the coupled atmosphere / ocean circulations in a way that not only gives a better simulation of global average surface temperature, but also provides better simulations of the variability of key regional circulation features.

Sequestration rates, on the other hand, changing the total of CO2 in the atmosphere, and hence the ppm concentration, has another timeframe entirely (regulated primarily by ocean circulation exposing water that can absorb CO2), which you seem strangely unaware of.

Also this wondrous piece of RealClimate University Science: «'' (regulated primarily by ocean circulation exposing water that can absorb CO2), which you seem strangely unaware of.»»

There seems to be some sort of interaction between the air circulation and the ocean circulation which changes depending on whether the oceans are globally warming the air or globally cooling it.

The global warming trend or cooling trend in the air, initiated by the oceans, then leads on to all the variations in both circulations that seem to be causing so much puzzlement.

«Feb. 25, 2008 — Predictions that the 21st century is safe from major circulation changes in the North Atlantic Ocean may not be as comforting as they seem, according to a Penn State researcher.»

The pre-Holocene climate shifts seem to be well accounted for by dynamics of glacial meltoff, freshwater discharge, and the impact on the ocean circulation... all of which is less of an issue in an initially warm climate, and the AR5 generation models give no indication that the overturning circulation will be significantly impacted over the coming century.

What seems more interesting is the change in ocean and atmospheric circulation that occurred in the 1998/2001 climate shift — climate shifts are a relatively new concept but one that is central to understanding climate.

The well - coupled SWAC — SWWA rainfall relationship seems to be largely independent of the well - known effects of large - scale atmospheric circulations such as the southern annular mode (SAM), El Niño — Southern Oscillation (ENSO), Indian Ocean dipole (IOD), and ENSO Modoki (EM).

The seasonal climate may relate to changes in the ocean circulation pattern prior to 4.6 Ma that resulted in an increased temperature and atmospheric pressure gradient between the east coast of North America and the Atlantic Ocean, but this climate phase seems to be only a temporary condition, as underlying and overlying sediment are both consistent with drier conditocean circulation pattern prior to 4.6 Ma that resulted in an increased temperature and atmospheric pressure gradient between the east coast of North America and the Atlantic Ocean, but this climate phase seems to be only a temporary condition, as underlying and overlying sediment are both consistent with drier conditOcean, but this climate phase seems to be only a temporary condition, as underlying and overlying sediment are both consistent with drier conditions.

Changes in near - coastal circulation or biochemistry seem to be altering surface ocean pH more quickly than can be explained by an equilibrium response to the rising atmospheric CO2 concentration (Wootton and Pfister, 2012).

We have a lot of very good models that seem to do a very good job of modeling ocean circulation.

While on first thought this might seem undesirable because we are looking for a global number, it might make sense to separate them due to the large difference in land / ocean ratio and the fact that atmospheric circulation patterns isolate them WRT shorter term changes.

But given the ever - increasing intensity of these impacts - and the fact that the melting of Greenland only continues to speed up - it seems likely the future will bring continued dramatic global changes in ocean circulation.

I am, after all a teacher, and this seemed like a good opportunity to explain why, for example, I thought more attention should be paid to sea level rise, which is ongoing and unstoppable and carries a real threat of acceleration, than to the unsupportable claims that the ocean circulation was undergoing shutdown (Nature, December 2005).

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.

Relevant text from the AR4 Chapter 8: «Atmosphere - Ocean General Circulation Models do not seem to have difficulty in simulating IPO - like variability... [T] here has been little work evaluating the amplitude of Pacific decadal variability in AOGCMs.

This all seems to point to some major change in the ocean overturning circulation having occurred in this run, resulting in the cold ocean anomaly south of Greenland and substantial surface cooling in most areas.

Interesting for sure, vut the scientific payoff for using all this computer time doesn't seem to be too high in the absence of observations of the ocean circulation during this period with which to compare the simulations.

«The weakening and strengthening of the stratospheric circulation seems to correspond with changes in ocean circulation in the North Atlantic,» Reichler says.