Sentences with phrase «coupled ice sheet models»

The results provide insights to guide ongoing development of fully dynamic coupled ice sheet models.

Not exact matches

In the study, researchers analyzed a series of transient Coupled General Circulation Model simulations forced by changes in greenhouse gases, orbital forcing, meltwater discharge and the ice - sheet history throughout the past 21,000 years.

To get the big picture right, however, we need models that physically couple ice sheets / shelves with the ocean.

A new numerical model of coupled inland, ice stream, and ice shelf flow and its application to the West Antarctic ice sheet, JGR.

Calov, R., et al., 2002: Large - scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate - system model.

Gallée, H., et al., 1991: Simulation of the last glacial cycle by a coupled, sectorally averaged climate — ice sheet model.

But it leaves a large uncertainty in the timing; more complex coupled ice - sheet and climate models are needed to model this more thoroughly in the future.

Proposed explanations for the discrepancy include ocean — atmosphere coupling that is too weak in models, insufficient energy cascades from smaller to larger spatial and temporal scales, or that global climate models do not consider slow climate feedbacks related to the carbon cycle or interactions between ice sheets and climate.

Along with David Schilling, I had developed a model to reconstruct former ice sheets with ice elevations based on the strength of ice - bed coupling determined by glacial geology.

We need fully coupled ice sheet / ocean / sea ice / atmosphere models and we do not have them now.

In addition we have coupled the ice model Sicopolis to our Earth System model CLIMBER - 2 to study the stability of the Greenland ice sheet in past and future climate changes.

We quantify sea - level commitment in the baseline case by building on Levermann et al. (10), who used physical simulations to model the SLR within a 2,000 - y envelope as the sum of the contributions of (i) ocean thermal expansion, based on six coupled climate models; (ii) mountain glacier and ice cap melting, based on surface mass balance and simplified ice dynamic models; (iii) Greenland ice sheet decay, based on a coupled regional climate model and ice sheet dynamic model; and (iv) Antarctic ice sheet decay, based on a continental - scale model parameterizing grounding line ice flux in relation to temperature.

A new international study is the first to use a high - resolution, large - scale computer model to estimate how much ice the West Antarctic Ice Sheet could lose over the next couple of centuries, and how much that could add to sea - level riice the West Antarctic Ice Sheet could lose over the next couple of centuries, and how much that could add to sea - level riIce Sheet could lose over the next couple of centuries, and how much that could add to sea - level rise.

Thomas Crowley and William Hyde ran a coupled energy - balance / ice - sheet model to test... Read more

The strong coupling of ice sheets and surrounding oceans (Joughin et al., 2012a) was not fully anticipated in early modeling efforts, and is not now fully represented in comprehensive Earth - system models.

DOI: 10.5194 / cp -12-1829-2016 The effect of greenhouse gas concentrations and ice sheets on the glacial AMOC in a coupled climate model

Much process - based research coupling field work, remote sensing, and modeling is required to advance assessment of the likelihood of a threshold - crossing leading to abrupt sea - level rise from the ice sheets, as well as to improve projections of moregradual sea - level rise that could lead to threshold - crossing events in other systems.

To get the big picture right, however, we need models that physically couple ice sheets / shelves with the ocean.

The same group of authors looked at this in two ways, using NCAR's Community Climate System model (CCSM) coupled to a state - of - the - art 3 - D ice sheet model.

But a reminder, you are doing V&V on the dynamic core, the bottom boundary conditions (like orography), each individual parameterization (e.g. radiative transfer, convection, boundary layer, clouds, etc), and in the case of coupled models the ocean module, the sea ice module, the land process module, the aerosol module (and in future the ice sheet module), in stand alone mode as well as when coupled in the climate model.