Sentences with phrase «ice sheet changes»

The resulting information will help improve computer models that predict how ice sheets change over time.
They are essentially best case scenarios, because the entirely the impact of dynamic ice sheet changes.
Also ice sheets models, as they become more realistic and are tested against observed ice sheet changes, may aid our understanding.
In December 2014, for example, she and colleagues published a study that used NASA satellite and aerial data to reconstruct how the height of the Greenland Ice Sheet changed at nearly 100,000 locations from 1993 to 2012.
The project was a massive undertaking, using satellite and aerial data from NASA's ICESat spacecraft and Operation IceBridge field campaign to reconstruct how the height of the Greenland Ice Sheet changed at nearly 100,000 locations from 1993 to 2012.
Interactions between the ocean and ice sheets are particularly important in determining ice sheet changes, as a warming ocean can melt the ice shelves, the tongues of ice that extend from the ice sheets into the ocean and buttress the large land - based ice sheets [92], [202]--[203].
Since we are talking about the models that are being used today to model the next 50 or so years and that those models don't generally include ice sheet models, it is correct to describe ice sheet changes as forcings in this case.
Sea ice sheets change suddenly because of their even relief, thinness, and the forcing of the ice albedo effect.
Some studies have attempted to manually tune the parameters of physical models that relate ice sheet changes to sea - level changes; the best recent example of this was the study of Lambeck et al. (2014), which covered the last 20,000 years.
Rocks exposed by retreating or thinning glaciers provide evidence of past ice sheet change, which helps scientists to predict possible future change.
Climate models are not yet able to include full models of the Greenland and Antarctic ice sheets and to dynamically simulate how ice sheet changes influence sea level.
Combining POLENET measurements of gravity, sea level, and the atmosphere will link ice sheet change to the global earth system.
It matters whether the forcing agent is GHG or tectonic activity or orbit - driven ice sheet changes.
Antarctica's vulnerability to climate change has also become increasingly clear, said Robin Bell of Columbia University's Lamont - Doherty Earth Observatory, who studies how ice sheets change.
The project used satellite and aerial data from NASA to reconstruct how the height of the Greenland Ice Sheet changed at nearly 100,000 locations from 1993 to 2012.
Interactions between the ocean and ice sheets are particularly important in determining ice sheet changes, as a warming ocean can melt the ice shelves, the tongues of ice that extend from the ice sheets into the ocean and buttress the large land - based ice sheets [92], [202]--[203].
«New method relates Greenland ice sheet changes to sea - level rise.»
To understand how an ice sheet changes through time, a continuous historical record of those changes is needed, according to Licht.
Similarly, the different timescales for land biospheric changes and ice sheet changes will almost certainly give a complex transient scenario.
Antarctic climate and ice sheet changes and their relationship to global scale climate change over the last 2000 years.
Re «Estimates of the drivers of global temperature change in the ice ages show that the changes in greenhouse gases (CO2, methane and nitrous oxide) made up about a third of the effect, amplifying the ice sheet changes by about 50 % (Köhler et al, 2010).»
for article Abrupt glacial climate shifts controlled by ice sheet changes.
We see these ice sheets changing literally overnight.»
The study is part of the British Antarctic Survey's Icesheets Programme that investigates how ice sheets change and what effect they have on the rest of the earth, including rises in sea levels.
Here, using a modelling approach and a novel factorisation method, we assess the relative contributions to mid-Pliocene warmth from: elevated CO2, lowered orography, and vegetation and ice sheet changes.
a b c d e f g h i j k l m n o p q r s t u v w x y z