Sentences with phrase «for glacier models»

Not exact matches

Now, to find out how the glaciers formed in the first place, scientists created models that simulated atmospheric circulation on the dwarf planet for the last 50,000 years (a mere 200 orbits around the sun for Pluto).

Moon et al. used an innovative observational and modeling method to produce a freshwater flux budget for the Helheim - Sermilik glacier - fjord system in Greenland.

In a recent study, Mathias Trachsel (Dept. of Biology, University of Bergen) and Atle Nesje (Dept. of Earth Science, University of Bergen and Uni Research Climate) used simple statistical models to assess and quantify the relative importance of summer temperature and winter precipitation for annual mass balances of eight Scandinavian glaciers.

Lakes on the McMurdo Peninsula, the largest glacier - free swath of Antarctica, are the best available model for frozen planets.

Willenbring noted that the new date for the glacier maximum in the Mediterranean region, which is several thousands of years earlier than the date the maximum was reached in central Europe, will help provide more context for creating accurate global climate models.

The difference could point to a problem with the models, which attempt to account for effects such as the loss of glaciers and ice caps and the fact that a warming ocean takes up more space.

The glacier idea got another boost with recently developed climate models for Mars that take into account changes in the planet's axis tilt.

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.

Models of mountain (alpine) glaciers are applied to solve similar problems to those models used for polar ice sheets, but typically have a higher resolution (a smaller grid size) and need to consider the effects of steep and often variable bed slopes, and the transverse stresses found in valley glaModels of mountain (alpine) glaciers are applied to solve similar problems to those models used for polar ice sheets, but typically have a higher resolution (a smaller grid size) and need to consider the effects of steep and often variable bed slopes, and the transverse stresses found in valley glamodels used for polar ice sheets, but typically have a higher resolution (a smaller grid size) and need to consider the effects of steep and often variable bed slopes, and the transverse stresses found in valley glaciers.

Data from real glaciers are required both to parameterise a model, for which values from similar glaciers in other parts of the world may be used, e.g. glacier surface albedo (Cuffey and Paterson, 2010), and to define variables for the study glacier.

Numerical computer modelling of the glacier for these different time periods will help us understand whether this part of the ice sheet is susceptible to rising sea level, warming oceans or increased atmospheric temperatures.

«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.

Since it's a brand new SLK, Merc has decided to celebrate its arrival with an «Edition 1» special model, which comes in a special paint finish in glacier grey, and standard spec equipment for this one includes a panoramic vario - roof, the Dynamic Handling package, AMG bodystyling, two - tone designo nappa leather with contrasting top - stitching and Airscarf.

Oerlemans addresses this by using a simple linear model that relates the glacier length to temperature, with adjustments for the glacier geometry and the local annual precipitation for each glacier.

Adding such an ill - founded number into the «model - based» range degrades the much more reliable estimates for thermal expansion, mountain glaciers and mass balance.

The papers questioned everything from the relative role of natural mechanisms in changes to the climate system vis - à - vis increased CO2 concentrations, the allegedly «unprecedented» nature of modern climate phenomena such as warming, sea levels, glacier and sea ice retreat, and the efficacy and reliability of computer climate models for projecting future climate states.

But once the ongoing effect of warming shocks to the glacier front were modeled for the next 90 years, a maximum realistic sea - level rise from Greenland's ice - loss was 2 inches.

The additional processes included in the JULES model will provide a more complete picture of water resources of South Asia than previously possible, allowing quantitative analysis of the effects of changes in river flow and glaciers on water resources and the implications of these changes on water availability for irrigation and therefore crop yields.

This analytical report calls for accelerating research, monitoring and modeling of glaciers, snow and their role in water supplies.

We will continue our 3D higher - order flow modeling of the glacier, specifically to help us constrain a depth - age relationship for the core to help assess snow accumulation rates.

(2012), Ice volume and subglacial topography for western Canadian glaciers from mass balance fields, thinning rates, and a bed stress model: Journal of Climate, doi: 10.1175 / JCLI - D -12-00513.1.

After establishing sources of uncertainty and methods for code verification, the paper looks at a representative sampling of verification and validation efforts that are underway in the glacier modeling community, and establishes a context for these within an overall solution quality assessment.

By example, this Integrated Science Exploration Environment is proposed for exploring and managing sources of uncertainty in glacier modeling codes and methods, and for supporting scientific numerical exploration and verification.

This paper is a presentation of some of those methods, and how they might be applied to uncertainty management supporting code verification and model validation for glacier dynamics.

A method of dealing with the lack of mass balance measurements is to estimate the changes in mass balance as a function of climate, using mass balance sensitivities (see Box 11.2 for definition) and observed or modelled climate change for glacier covered regions.

Mass - balance modelling of all glaciers individually is not practical because no detailed description exists for the great majority of them, and because local climate data are not available; even regional climate models do not have sufficient resolution, while downscaling methods can not generally be used because local climate measurements have not been made (see Section 10.7).

The model simulated each glacier from 1980 to 2100, using observed weather conditions for the past and a number of climate models for the future.

The «The model simulated each glacier from 1980 to 2100, using observed weather conditions for the past and a number of climate models for the future.»

Like Fernando said about refining model node density around rapidly changing features in the Himalayan glacier article, the same is true for ocean models.

The sediments do not provide a unique sedimentary facies model for high - latitude subpolar glaciers and are indistinguishable from temperate examples.

In project syndicate's article by Bjørn Lomborg we find: «For sea - level rise, the IPCC now includes modeling of glacier responses of 3 - 20 centimeters, leading to a higher total estimate of 40 - 62 cm by century's end — much lower than the exaggerated and scary figure of 1 - 2 meters of sea - level rise that many environmental activists, and even some media outlets, bandy about.»

For calculating melting at the base of ice shelves and the fronts of tidewater glaciers, we need better estimates of ice roughness represented in models by a «drag coefficient.»

On the Guardian's forums, you'll find endless claims that the hockey stick graph of global temperatures has been debunked; that sunspots are largely responsible for current temperature changes; that the world's glaciers are advancing; that global warming theory depends entirely on computer models; that most climate scientists in the 1970s were predicting a new ice age.

The laser altimeter data were extracted for different types of glacier surfaces derived from the Landsat data and compared with the digital elevation model to obtain elevation differences over time.

He acknowledges that the findings may yield more questions than answers in the study of Arctic glaciers, but he hopes that the search for answers will help scientists build better computer models of glacial dynamics.

On the Guardian's forums, you'll find endless claims that thehockeystick graph of global temperatures has been debunked; that sunspots are largely responsible for current temperature changes; that the world's glaciers are advancing; that global warming theory depends entirely on computer models; that most climate scientists in the 1970s were predicting a new ice age.

Winter accumulation and summer ablation balance maps are constructed annually for each glacier using large scale digital elevation models for each glacier.

(1) The mountain glacier model is driven by observed rather than modelled climate, so that two different climate histories go into producing the dashed black line: observed climate for glacier melt and modelled climate for ocean thermal expansion.

Nothing seems to be working out for them, since the sea level is leveling off, the glaciers are not really melting everywhere, the temperature is not going up for the last 10 - 15 years, no «hot spot,» as predicted by models, etc., etc..

Knowing the thickness and total volume of glaciers worldwide is essential for modeling the response of glaciers to climate change, said Valentina Radic, a glaciologist at the University of British Columbia who was not involved in the study.

Indeed, working with predictions for future temperature increases and glacier melt rates generated by ten separate global climate models — all of which are also used by the Intergovernmental Panel of Climate Change - the team have concluded that these smaller ice sources will contribute around 12 centimetres to world sea - level increases over the remainder of the century, with this likely to have catastrophic consequences for numerous natural habitats as well as for hundreds of thousands of people.

From the SOCIETY FOR GENERAL MICROBIOLOGY and the «department of robusted models» comes this Today, at the Microbiology Society's Annual Conference in Liverpool, scientists will reveal how Arctic microbes are increasing the rate at which glaciers melt, in a process not accounted for in current climate change modeFOR GENERAL MICROBIOLOGY and the «department of robusted models» comes this Today, at the Microbiology Society's Annual Conference in Liverpool, scientists will reveal how Arctic microbes are increasing the rate at which glaciers melt, in a process not accounted for in current climate change modefor in current climate change models.