Sentences with phrase «most ice sheet models»

Hansen [49,50] argues that real ice sheets are more responsive to climate change than is found in most ice sheet models.

Hansen [49,50] argues that real ice sheets are more responsive to warming than in most ice sheet models, which suggests that large ice sheets are relatively stable.

For example, some exciting work being done by David Pollard and Rob DeConto suggests that processes such as ice - cliff collapse and ice - shelf hydrofracturing may play important roles in future ice sheet behavior that have not been well incorporated into most ice sheet models.

Not exact matches

But most of all, she wanted to know whether Pappalardo's model of Europa's ice sheet jibed with all he had learned from almost 30 years of studying ice on Earth.

Most modelling studies of this period do not treat ice sheet extent and elevation or CO2 concentration prognostically, but specify them as boundary conditions.

«These are two of the largest and most rapidly changing glaciers in Antarctica, so the potential for their evolution to influence each other is important to consider in modeling ice sheet behavior and projecting future sea level rise,» Dustin Schroeder, a Stanford geophysicist who led the study, told Earther.

Experiments of this type are however challenging as ice sheets evolve over multi-millennial timescales, which is beyond the practical integration limit of most Earth system models.

But what the GSL now says is that geological evidence from palaeoclimatology (studies of past climate change) suggests that if longer - term factors are taken into account, such as the decay of large ice sheets, the Earth's sensitivity to a doubling of CO2 could itself be double that predicted by most climate models.

[Response: Indeed it is the latter; most global climate models do not (yet) include continental ice sheet models.

Most previous models have focused how warming air melts ice - sheets and glaciers from the top - down.

From this small set, they applied the resulting model to the wider Greenland Ice Sheet, in order to work out the expected sea - level rise just from the most recent observed changes - and so figure out a «committed level of sea - rise».

Paleontological records indicate that global mean sea level is highly sensitive to temperature (7) and that ice sheets, the most important contributors to large - magnitude sea - level change, can respond to warming on century time scales (8), while models suggest ice sheets require millennia to approach equilibrium (9).

One of the most feared of all model - based projections of CO2 - induced global warming is that temperatures will rise to such a degree as to cause a disastrous melting / destabilization of the Greenland Ice Sheet (GrIS), which melting is subsequently projected to raise global sea level by several meters.

Our estimated sea levels have reached +5 to 10 m above the present sea level during recent interglacial periods that were barely warmer than the Holocene, whereas the ice sheet model yields maxima at most approximately 1 m above the current sea level.

Geological evidence from studies of past climate change now suggests that if longer term factors are taken into account, such as the decay of large ice sheets and the operation of the full carbon cycle, the sensitivity of the Earth to a doubling of CO2 could be double that predicted by most climate models.

Most modelling studies of this period do not treat ice sheet extent and elevation or CO2 concentration prognostically, but specify them as boundary conditions.

Some of the most recent ice sheet modelling efforts that I have seen discussed at conferences — the kind of results that came too late for inclusion in the IPCC report — point to the possibility of larger sea - level rise in future.

From the linked table by # 3 Aslak Grindsted, it seems like the FAR gave the most realistic estimate of the sea level rise, even better than AR5, according to the «ice sheet experts» as well as taking into the account the bias in leaving the semi-empirical models out.

But one modeling study put the threshold level for the eventual near - complete loss of Greenland's ice sheet at a local warming of just 2.7 C — which, due to Arctic amplification, means a global warming of only 1.2 C. Total melting of Greenland — luckily, something that would likely take centuries — would raise sea levels by 7 meters, submerging Miami and most of Manhattan, as well as large chunks of London, Shanghai, Bangkok and Mumbai.