Sentences with phrase «ice model by»

Two groups: Washington and Meehl (1989) and Stouffer, Manabe and Bryan (1989); the latter included the sea - ice model by Bryan (1969).

Not exact matches

Howat and his team were able to figure this out by creating high - resolution topographic models of the glaciers and their boundaries, as well as a numerical model of exactly how much water was flowing off these coastal glaciers and ice caps — technology that wasn't available back in 1996.
The Trump brand, as developed by The Donald, spans a wide variety of industries including real estate, hospitality, entertainment, mortgages, restaurants and catering, ice cream, online travel, menswear, fragrance, golf, home furnishings, transportation, model management, vodka and more.
If we use the logically odd phrase «Word of God» to describe the Bible, with «Word» as the model and «of God» as the qualifier, so that we speak of «hearing» God's Word, we mean that if we follow the verbal pattern formed by the words of scripture, we may find ourselves in a situation in which a disclosure occurs; the «light dawns» or the «ice breaks.»
Learn the proper care and use for your CC model Frozen Custard and Italian Ice machine by watching our operational videos.
British model Anara Atanes did the ALS Ice Bucket Challenge on Saturday after being nominated by her boyfriend, Manchester City midfielder Samir Nasri.
Huss plans to clarify the future of the earth's land ice by extending his model.
They also analyzed data from a climate model developed by the Max - Planck Institute for Meteorology in Germany to predict what the correlation between the current and rainfall would be expected to be during the Little Ice Age.
One group will use the data to improve a climate prediction model by incorporating extreme ice events.
«The widespread loss of Antarctic ice shelves, driven by a warming ocean or warming atmosphere, could spell disaster for our coastlines — and there is sound geological evidence that supports what the models are telling us,» said Robert M. DeConto of the University of Massachusetts Amherst, a co-author of the study and one of the developers of the ice - sheet model used.
We are now also able to model ice topped by melt water or rain water.»
The thermodynamic model developed by VTT Technical Research Centre of Finland research scientists shows that under certain conditions ice warms and melts when an item of material slides across its surface.
Michiel van den Broeke of Utrecht University in the Netherlands and colleagues began by modelling the difference in annual snowfall and snowmelt in Greenland between 2003 and 2008 to reveal the net ice loss for each year.
By using theoretical simulations, the researchers were able to model states of superionic ice that would be difficult to study experimentally.
Computer model simulations have suggested that ice - sheet melting through warm water incursions could initiate a collapse of the WAIS within the next few centuries, raising global sea - level by up to 3.5 metres.»
Ice friction was modelled by VTT's Principal Scientist Lasse Makkonen and Research Scientist Maria Tikanmäki.
Over the past forty years, the ice cover in summer has shrunk by more than half, with climate model simulations predicting that the remaining half might be gone by mid-century unless greenhouse gas emissions are reduced rapidly.
Recent modelling by researchers from the Potsdam Institute for Climate Impact Research in Germany, as well as studies of past climate, suggest that the planet will soon have warmed enough to melt Greenland's ice sheet entirely — if it hasn't already become warm enough.
Over the current century, the model projects that the average albedo for the entire ice sheet will fall by as much as 8 percent, and by as much 10 percent on the western edge, where the ice is darkest today.
The paper also describes an atmosphere - ocean modeling study of feedback loops caused by ice sheet melting under 2 °C conditions.
But new modeling studies by Marchant and his team have shown that sublimation of deeply buried ice is extremely slow, less than a tenth of a millimeter per year.
Untersee is a good model for Mars, he says, because it is supplied by subglacial melt — water that accumulates at the bottom of an ice pile — rather than from surface melting, which does not occur on Mars.
New research by UM bioclimatology Assistant Professor Ashley Ballantyne models the influence of Arctic sea ice on Arctic temperatures during the Pliocene era.
Research by the UK Centre for Polar Observation and Modelling (CPOM) at the University of Leeds has produced the first complete map of how the ice sheet's submarine edge, or «grounding line,» is shifting.
The researchers may have slightly different numbers regarding the exact amount of ice remaining, but both agree that nature is outpacing projections from computer models and that summer sea ice in the Arctic could vanish by 2030.
The international team of co-authors, led by Peter Clark of Oregon State University, generated new scenarios for temperature rise, glacial melting, sea - level rise and coastal flooding based on state - of - the - art climate and ice sheet models.
He pointed to computer models he and his colleagues studied that project a 30 percent decline in sea ice by 2050.
Data collected by ship and model simulations suggest that increased Pacific Winter Water (PWW), driven by circulation patterns and retreating sea ice in the summer season, is primarily responsible for this OA expansion, according to Di Qi, the paper's lead author and a doctoral student of Liqi Chen, the lead PI in China.
Computer models previously forecast that the Arctic would be free of ice in the summer by 2050.
By 2100, the choice of driving climate model conditions dominates the uncertainty, but by 2200, the uncertainty in the ice sheet model and the elevation scheme are largeBy 2100, the choice of driving climate model conditions dominates the uncertainty, but by 2200, the uncertainty in the ice sheet model and the elevation scheme are largeby 2200, the uncertainty in the ice sheet model and the elevation scheme are larger.
With coordinated experiments with six atmospheric general circulation models, forced by observed daily sea - ice concentration and sea surface temperatures.
This past spring the Coast Guard, which has not built a heavy polar vessel in four decades, took a preliminary but crucial step toward expanding its fleet by testing ship models at one of the world's largest ice - tank facilities, located in Canada.
By combining satellite images of the ice sheet and wind stress data from observations and computer modeling, Greene and his collaborators were able to study the chain of events that brings the warm water to Totten.
Long - term predictions of summer Arctic extent made by global climate models (GCMs) suggest that the downward trend will likely lead to an ice - free Arctic summer in the middle of the century.
The international research initiative IceGeoHeat led by the GFZ German Research Centre for Geosciences establishes in the current online issue of Nature Geoscience that this effect can not be neglected when modeling the ice sheet as part of a climate study.
He says previous predictive models of Greenland's ice loss did not adequately take into account the faster movement of its southern glaciers, which is accelerating the amount of ice entering the ocean: «Greenland is probably going to contribute more to sea level rise, and faster than predicted by these models
The model correctly predicted the extent of the resulting Arctic ice melt, enough to raise sea levels by roughly nine feet.
Climate change models predict that the Arctic sea ice will continue to shrink in a warming world (as much as 40 % of the ice is expected to be gone by midcentury), and the resulting changes — including later formation of ice in the autumn, rain falling on the snow, and decreasing snow depths — will make it increasingly difficult for the seals to construct their snow caves, NOAA says.
«If you haven't had proximity to these glaciers, if you haven't thought about where water comes from, it would be easy to understate or underestimate the implications of glacial ice loss in a state that has predominantly a semi-desert climate and certainly by contemporary climate models is going to be pretty significantly impacted by climate change,» said Jacki Klancher, a professor of environmental science at Central Wyoming College.
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.
The consequences of global sea level rise could be even scarier than the worst - case scenarios predicted by the dominant climate models, which don't fully account for the fast breakup of ice sheets and glaciers, NASA scientists said today (Aug. 26) at a press briefing.
The authors modeled the icy shells of Enceladus and Dione as global icebergs immersed in water, where each surface ice peak is supported by a large underwater keel.
From at least Lorius et al (1991)-- when we first had reasonable estimates of the greenhouse gases from the ice cores, to an upcoming paper by Schneider von Deimling et al, where they test a multi-model ensemble (1000 members) against LGM data to conclude that models with sensitivities greater than about 4.3 ºC can't match the data.
Hoose, C. et al. (2010): A classical - theory - based parameterization of heterogeneous ice nucleation by mineral dust, soot, and biological particles in a global climate model, J. Atmos.
Led by PNNL, the cross-functional research team, working under a measurements - to - modeling paradigm, investigated the ice nucleating properties for different dust samples affected by another kind of pollution.
From 1966 to 2003 the modeled mean world ocean temperature in the upper 700 m increased 0.097 Â °C and by 0.137 Â °C according to observations (Levitus et al., 2005); the modeled mean temperature adjusted for sea ice in the corresponding layer of the Arctic Ocean increased 0.203 Â °C.
Summer surface meltwater will expand vertical fractures in the ice sheet and lubricate the ice sheet bed, so leading to mechanical breakup by mechanisms that we currently can not model by computer and so can not forecast.
The heights of the rectangular bars denote best estimate values guided by published values of the climate change agents and conversion to radiative perturbations using simplified expressions for the greenhouse gas concentrations and model calculations for the ice sheets, vegetation and mineral dust.
We also note that the modeled response of atmospheric pressure to the cooling effect of ice melt is large scale, tending to be of a meridional nature that should be handled by our model resolution.
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.
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