Sentences with phrase «ice sheet dynamics»

A full understanding of glacial - interglacial carbon dynamics requires knowledge of the complex interplay among ocean chemistry and circulation, ecology of marine and terrestrial organisms, ice sheet dynamics, and atmospheric chemistry and circulation.

The inertia of ice sheet dynamics is the third.

What is new, and newsworthy, is that the extensive system of liquid water under the ice may provide a better understanding of ice sheet dynamics:

What is alarming is that the volume of water and the extent and rapidity of its movement is suprisingly much greater than previously believed, and that a possible, perhaps likely, effect of this on ice sheet dynamics is to make the ice sheets less stable and more likely to respond more quickly to global warming than previously expected.

I would speculate that the faster rate of of rise compared to fall is due to ice sheet dynamics, ice sheets breakup faster than they form.

If sea level begins changing more rapidly, for example due to rapid changes in ice sheet dynamics, then this simple extrapolation will likely represent a conservative lower bound on future sea - level change.

WRT our current discussion of ice sheet dynamics, the latest IPCC report actually has * less * to offer in terms of icesheet change predictions precisely because there have been so many new findings and such dramatic changes in just the last few years.

The «boils» are also a dynamic effect which computer models of heated water pots might have missed — similar to ice sheet dynamics.

Many important interactions are occurring on small spatial scales that have not yet been successfully integrated into models simulating large - scale phenomena — and so the influence of various possible solar geoengineering deployments on Antarctic ice sheet dynamics remains largely unknown and unexplored.

The questions on ice sheet dynamics have still not been answered, so there is no agreed upon answer.

That is an estimate based on models that don't include the kind of rapid ice sheet dynamics that are already occurring.

Tectonic uplift and feedback mechanisms, Interaction of tectonics and ice sheet dynamics.

We need greater attention on the strength of uncertain processes and feedbacks in the physical climate system (e.g. carbon cycle feedbacks, ice sheet dynamics)(NRC 2013), as well as on institutional and behavioral feedbacks associated with energy production and consumption, to determine scientifically plausible bounds on total warming and the overall behavior of the climate system (Heal and Millner 2014).

Until now, though, most of the focus has been on ice sheet dynamics — how quickly Greenland's glaciers are flowing into the sea.

Which experts on sea level rise, ice sheet dynamics, and polar bear biology / ecology did you contact for your articles on polar bear populations and sea level rise?

Sea level varies with thermal expansion — minor — and with ice sheet dynamics — huge.

In the last 20,000 years the planetary temperature was a response to ice sheet dynamics.

Glacials and interglacials are the result largely of ice sheet dynamics.

But who's to say that if we had enough data and understanding, these spikes and dips could not be thoroughly explained by solar influences, volcanic eruptions, greenhouse gas changes, ice sheet dynamics, etc..?

Together with the University of Alaska, PIK develops the Parallel Ice Sheet Model (PISM), an innovative computer model of continental ice sheet dynamics.

With the IPCC previously «taking a pass», in its assessment of Greenland's contribution to sea - level rise - due to poor understanding of how ice sheets would respond to global warming back in 2007 - this new paper is an important first stab at pinning down the slippery mechanisms of «ice sheet dynamics».

If you're talking about acceleration to extraordinary multi-metre sea level rises, that's a different topic and we'd probably have to discuss ice sheet dynamics.

Thus, are we getting closer to modeling ice sheet dynamics in a nonlinear fashion?

Climate alarm depends on several gloomy assumptions — about how fast emissions will increase, how fast atmospheric concentrations will rise, how much global temperatures will rise, how warming will affect ice sheet dynamics and sea - level rise, how warming will affect weather patterns, how the latter will affect agriculture and other economic activities, and how all climate change impacts will affect public health and welfare.

but when you get around to looking at that interminable thread, you'll find that most of what people were arguing about wasn't in the territory of things like ice sheet dynamics where reasonable people could differ about the science.

The models we have for ice sheet dynamics are quite new, and we have no way of testing them.

The biggest change is that ice sheet dynamics look more uncertain now than at the time of the TAR, which is why this uncertainty is not included any more in the cited range but discussed separately in the text.

Then you have the ice sheet dynamics issue.

As I said, we don't have a good understanding of the ice sheet dynamics, and what you say is plausible at first sight.

Recent evidence (e.g. as reviewed by us a few months back) suggests that the demise of large parts of the major ice sheets could potentially take place far faster — on timescales of perhaps several centuries — due to the influence of ice sheet dynamics.

These processes are still far from perfectly understood, because they require a representation of the fairly complicated rheology involved in ice sheet dynamics.

There will be some clear failures where there are reasons to suspect that some of the (up to now) excluded physics is dominant (i.e. Heinrich events that rely on ice sheet dynamics), but pretty much everything else is fair game — as long of course there is a good hypothesis to test.

There could, for example, be SOC events reflected in ice sheet dynamics, as oceanic heat transfer destabilises the Antarctic circulation, leading to acelerated ice sheet destabilisation.

Further to Aaron's post in # 15, if the current generation of GCM's do not properly include ice sheet dynamics and interactions with the oceans etc, are not the pdf's and their moments compromised and if so to what extent?

Chris Mooney has filed a nice Washington Post piece on ice sheet dynamics and several ways to visualize the most common unit of what's moving to the sea — gigatons (each a billion tons): Read more...

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.

Chris Mooney has filed a nice Washington Post piece on ice sheet dynamics and several ways to visualize the most common unit of what's moving to the sea — gigatons (each a billion tons):

These parameters include global mean surface temperature, sea - level rise, ocean and ice sheet dynamics, ocean acidification, and extreme climatic events.

You should call some Floridians or Louisianans and ask them: would you care if melting ice on Greenland or West Antarctica submerges more than half of your state even if it wouldn't occur for another 100 to 1,000 years (there's a lot we don't know about ice sheet dynamics).

Among the ice sheet dynamics to fret about I see this change in the temperature of the ice from say -30 C to ice - at - 0C and the subsequent uptake of the heat to go from ice - at - 0C to water - at - 0C as the «dark matter» of the cryosphere.

I (and others) have been perplexed for years why so many in the ice sheet dynamics community have resorted to re-inventing the wheel (as a square) rather than avail themselves of this literature — it's not obscure.

And it is inspiring to see such progress being made in the detail with which models of ice sheet dynamics and other forms of change can be applied to the moderately far future.

Holocene accumulation and ice sheet dynamics in central West Antarctica.

Few AOGCMs include ice sheet dynamics; in all of the AOGCMs evaluated in this chapter and used in Chapter 10 for projecting climate change in the 21st century, the land ice cover is prescribed.

the idea of sea - level influence on ice sheet dynamics is not new, but as you indicate, references are not easily googleable.

Dan, I know virtually nothing about ice sheet dynamics but even I can understand that, even assuming no lubrification or sliding at the base, lateral ice flow is not going to be caused by the weight of the ice at the center.

Glaciology; ice sheet dynamics and sea level rise; ice — ocean interactions; geophysical field methods; satellite geodesy; spaceborne remote sensing

An underlying geologic template for ice sheet dynamics: aerogeophysics and satellite evidence from West Antarctica.

Hello, I am a graduate student from China, studying Antarctica ice flow, ice sheet dynamics and mass balance.

• Global messages from Antarctica, Dana Bergstrom • Deciphering past climate and ice sheet dynamics from sedimentary records, Carlota Escutia (Antarctic Science Lecture) • Southern Ocean Acidification, Richard Bellerby (Weyprecht Lecture) • Martha T Muse Lecture (Winner for 2014 to be announced)