Sentences with phrase «ocean climate modeling»

A new atmosphere - ocean climate modeling study shows that the planet's temperature depends, ultimately, on the atmospheric level of carbon dioxide.

Los Alamos researchers designed the SOMA model to investigate equilibrium mesoscale activity in a setting similar to the way that ocean climate models are deployed.

«Right now a lot of our ocean climate models don't include the effect of animals or if they do, it's as passive participants in the process,» Dabiri says.

The findings could also help scientists understand how the ocean sequesters carbon dioxide from the atmosphere and lead to updates in ocean climate models.

This climate modeling experiment was performed using the GISS ModelE general circulation coupled atmosphere - ocean climate model by zeroing out all of the non-condensing greenhouse gases.

Bjornsson, H., L.A. Mysak, and G.A. Schmidt, 1997: Mixed boundary conditions versus coupling with an energy - moisture balance model for a zonally averaged ocean climate model.

Coupled atmosphere - ocean climate models can be used to simulate the thermal response of the ocean water column to climate change with a moderate degree of uncertainty and the subsequent penetration of heat into the sediment column.

Not exact matches

The new proposed model could allow a better quantification of the impacts that will likely occur under changing climate and could be considered in future ocean resources and land use management.

Some climate models suggest that summer blocking activity and ocean temperatures around Greenland might decline in the next several decades, but it remains uncertain.

When ocean cycle shifts, globe is likely to warm up When climate models were run that included the stronger winds, they were able to reproduce the slowdown in surface temperatures.

«Antarctica: Return of the Weddell polynya supports Kiel climate model: After 40 years, a large ice - free area appears again in the Southern Ocean in mid-winter.»

A step that could improve climate models A better understanding of how the atmosphere and the oceans communicate and exchange things like CO2 can also help improve climate models and predictions of the future.

Finally, all the climate models assume different amounts of energy stored on Earth that is transferred to the ocean depths, which act as an enormous heat sink.

The researchers were able to test their hypothesis that stronger winds were driving the ocean heat uptake by putting the observations of wind behavior into climate models.

Professor Dan Lunt, from the School of Geographical Sciences and Cabot Institute at the University of Bristol said: «Because climate models are based on fundamental scientific processes, they are able not only to simulate the climate of the modern Earth, but can also be easily adapted to simulate any planet, real or imagined, so long as the underlying continental positions and heights, and ocean depths are known.»

«Using a numerical climate model we found that sulfate reductions over Europe between 1980 and 2005 could explain a significant fraction of the amplified warming in the Arctic region during that period due to changes in long - range transport, atmospheric winds and ocean currents.

But climate models predict reductions in dissolved oxygen in all oceans as average global air and sea temperatures rise, and this may be the main driver of what is happening there, she says.

«Some climate models suggest that under global warming scenarios, ocean oxygen content will decrease,» Johnson says.

Global climate models need to account for what Meehl calls «slowly varying systems» — how warmer air gradually heats the ocean, for example, and what effect this warming ocean then has on the air.

Research reported earlier this year hinted that events in the stratosphere might directly affect the oceans, but those findings were based on a single climate model and a computer simulation that modeled the stratosphere for a relatively short 260 years.

Models used to project conditions on an Earth warmed by climate change especially need to consider how the ocean will move excess heat around, Legg said.

Trenberth cites issues from the low - resolution ocean model to the lack of important ocean - climate patterns such as the El Niño - Southern Oscillation.

One day, oceanographers hope Spray and other gliders will be able to roam the oceans at will, providing an almost limitless supply of data that could be used to build more sophisticated climate models and develop better weather forecasts.

The resulting outburst of methane produced effects similar to those predicted by current models of global climate change: a sudden, extreme rise in temperatures, combined with acidification of the oceans.

The ocean's carbon cycle is a vital component of climate models.

«Advances in global climate models and high quality ocean, atmospheric and land observations are helping us push the frontiers of snowpack prediction.»

«This is true for both types of models — those driven with observed sea surface temperatures, and the coupled climate models that simulate evolution of both the atmosphere and ocean and are thus not expected to yield the real - world evolution of the PDO.

This model is widely used by both UK and international groups for research into ocean circulation, climate and marine ecosystems, and operationally as part of the UK Met Office's weather forecasting.

«We're trying to understand how what we're doing to the Earth's atmosphere and oceans will play out in the future,» says Bette Otto - Bliesner, who runs a full - complexity climate model — and its 1.5 million lines of code — through a supercomputer named Yellowstone at the National Center for Atmospheric Research in Boulder.

By combining this data with Ridgwell's global climate model, the team deduced the amount of carbon added to the ocean and atmosphere and concluded that volcanic activity during the opening of the North Atlantic was the dominant force behind the PETM.

Other researchers are pushing the frontiers of climate modeling, simulating how the oceans, atmosphere and land responded as Pliocene temperatures soared.

To model the projected impact of climate change on marine biodiversity, the researchers used climate - velocity trajectories, a measurement which combines the rate and direction of movement of ocean temperature bands over time, together with information about thermal tolerance and habitat preference.

Our global climate models zoom down to finer and finer resolutions; our satellites reveal remote corners of the globe; we increase our understanding of the response of giant ice sheets and deep ocean currents to a warming planet.

The models also include the greenhouse gas emissions and other pollutants that result from these processes, and they incorporate all of that information within a global climate model that simulates the physical and chemical processes in the atmosphere, as well as in freshwater and ocean systems.

The model suggests that the distribution of blue whales in the Northern Indian Ocean may shift seasonally, following their food as monsoon climate patterns alter the most productive habitat.

Saba, who has conducted modeling studies on the impacts of climate change on endangered leatherback turtles in the eastern Pacific Ocean, says the Northwest Atlantic loggerhead study offers a new approach in understanding how climate variability affects sea turtle populations.

Oregon State University oceanographer Robert Dziak says that depending on the size and frequency of these events, their spongelike effects could influence ocean chemistry and temperatures worldwide, making present climate - change models inaccurate.

Their findings, based on output from four global climate models of varying ocean and atmospheric resolution, indicate that ocean temperature in the U.S. Northeast Shelf is projected to warm twice as fast as previously projected and almost three times faster than the global average.

The global climate models assessed by the Intergovernmental Panel on Climate Change (IPCC), which are used to project global and regional climate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dyclimate models assessed by the Intergovernmental Panel on Climate Change (IPCC), which are used to project global and regional climate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dyClimate Change (IPCC), which are used to project global and regional climate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dyclimate change, are coarse resolution models based on a roughly 100 - kilometer or 62 - mile grid, to simulate ocean and atmospheric dynamics.

«New understanding of ocean turbulence could improve climate models.»

So they created a set of global climate models to analyze the ocean and atmosphere over a 40 - year period, keeping carbon dioxide levels fixed.

«When we included projected Antarctic wind shifts in a detailed global ocean model, we found water up to 4 °C warmer than current temperatures rose up to meet the base of the Antarctic ice shelves,» said lead author Dr Paul Spence from the ARC Centre of Excellence for Climate System Science (ARCCSS).

Co-author Nerilie Abram, from the Australian National University, said: «In order to better understand climate change in Antarctica, we need continued climate measurements in the Antarctic and Southern Ocean, and extension of these short observational records with past climate reconstructions and climate modelling.»

«Northwest Atlantic Ocean may get warmer, sooner: High resolution global climate model shows much faster warming and changing ocean circulation.&rOcean may get warmer, sooner: High resolution global climate model shows much faster warming and changing ocean circulation.&rocean circulation.»

Their research, published in Physical Review Letters, could be helpful in developing new climate models that better capture ocean dynamics.

That is a question climate scientists have so far been unable to answer because of limited opportunities to take robust ocean - atmosphere measurements around the planet and because of inherent challenges in existing computer models.

The global climate models do a good job of simulating the process of sea ice formation over large areas in the open ocean.

In the journal Nature Climate Change it is demonstrated, that modeled DMS emissions decrease by about 18 (± 3) % in 2100 compared to preindustrial times as a result of the combined effects of ocean acidification and climate Climate Change it is demonstrated, that modeled DMS emissions decrease by about 18 (± 3) % in 2100 compared to preindustrial times as a result of the combined effects of ocean acidification and climate climate change.

Climate modeling shows that the trends of warming ocean temperatures, stronger winds and increasingly strong upwelling events are expected to continue in the coming years as carbon dioxide concentrations in the atmosphere increase.

The researchers developed a novel approach to the issue by using climate data from the IPCC and directly modeling all of the components that cause flooding at the coast including, waves, tides, winds blowing over the surface of the ocean and estuaries, precipitation, and stream flow.