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 large
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 large
by 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.