Sentences with phrase «how changes in sea ice»

Future work must track how changes in sea ice and surface turbulent fluxes influence specific atmospheric regimes related to the episodic events.

Furthermore, we must understand how changes in sea ice cover affect the feeding ecology of humpback whales and their competitors in the short - term and the dynamics of krill populations over the longer term, particularly given the increasing pressure from commercial krill harvests [36].

Not exact matches

In this dark place, so far from human eyes, significant environmental change may already be underway, which could impact how quickly the ice sheet slips into the sea and, subsequently, how quickly global sea levels may rise.

«A clear understanding of energy use and energy storage will help improve models of how bears will respond to future changes in the sea ice.»

In late June, the U.S. Government Accountability Office released an assessment of how the consequences of climate change, from rising temperatures and sea levels to changes in precipitation patterns and sea ice cover, might impact the militarIn late June, the U.S. Government Accountability Office released an assessment of how the consequences of climate change, from rising temperatures and sea levels to changes in precipitation patterns and sea ice cover, might impact the militarin precipitation patterns and sea ice cover, might impact the military.

On average, Antarctic sea ice may be considerably thicker than once thought, which could significantly change how scientists assess sea ice dynamics and their interactions with the ocean in a warming world.

To better understand and anticipate changes in sea level rise, scientists have sought to quantify how much snow falls on the ice sheet in any given year, and where, since snow is the primary source of the ice sheet's mass.

In general, Antarctic sea ice is much more variable than the Arctic, and scientists are still grappling with how climate change and various natural climate cycles might be interacting to affect sea ice levels there.

The researchers warn, however, that the future evolution of the AMO remains uncertain, with many factors potentially affecting how it interacts with atmospheric circulation patterns, such as Arctic sea ice loss, changes in solar radiation, volcanic eruptions and concentrations of greenhouse gases in the atmosphere.

«Based on the UN climate panel's report on sea level rise, supplemented with an expert elicitation about the melting of the ice sheets, for example, how fast the ice on Greenland and Antarctica will melt while considering the regional changes in the gravitational field and land uplift, we have calculated how much the sea will rise in Northern Europe,» explains Aslak Grinsted.

A working group known as PALSEA2 (Paleo constraints on sea level rise) used past records of local change in sea level and converted them to a global mean sea level by predicting how the surface of the Earth deforms due to changes in ice - ocean loading of the crust, along with changes in gravitational attraction on the ocean surface.

Then they ramped up levels of CO2 to see how the algae would respond to the resulting warming, the extra carbon dioxide itself, and changes in sea ice.

Cryosphere Systems: How do rapid changes in cryosphere (continental and ocean ice) systems evolve with the earth system, and contribute to sea - level rise and increased coastal vulnerability?

«Earth is losing a huge amount of ice to the ocean annually, and these new results will help us answer important questions in terms of both sea rise and how the planet's cold regions are responding to global change,» said University of Colorado Boulder physics professor John Wahr, who helped lead the study.

«They were questions about how ice sheets relate to sea level, changes in the ocean, changes in the atmosphere and also changes in weather and long - term climate patterns,» says Dr Kennicutt.

A researcher from the Finnish Meteorological Institute has been participating in a comparison of how well global ocean models respond to the changes to sea ice and close - to - surface water.

In its latest assessment report, the Intergovernmental Panel on Climate Change (IPCC) concluded that there wasn't sufficient evidence available to put an exact number on how much the collapse of marine - based ice sheets could add to sea levels by 2100.

One of the limitations to understanding exactly how and why Antarctic sea ice is changing is the relatively short length of satellite data records, says Dr Jonathan Day, co-author of the new study published in The Cryosphere.

Items covered How the climate is changing with time laps charts showing the changes in Sea ice melting Ice sheet melting Carbon dioxide in the atmosphere Global temperature change Students will also explore a future technology on how to reduce the human impact on the environmeHow the climate is changing with time laps charts showing the changes in Sea ice melting Ice sheet melting Carbon dioxide in the atmosphere Global temperature change Students will also explore a future technology on how to reduce the human impact on the environmeice melting Ice sheet melting Carbon dioxide in the atmosphere Global temperature change Students will also explore a future technology on how to reduce the human impact on the environmeIce sheet melting Carbon dioxide in the atmosphere Global temperature change Students will also explore a future technology on how to reduce the human impact on the environmehow to reduce the human impact on the environment.

Would somebody here, like to explain to me how we can lose Arctic Sea ice (in part or in whole) without changing the atmospheric circulation patterns?

However, if the loss of Arctic Sea ice has significantly changed global atmospheric circulation patterns, then we are dealing with a different system that has only been in existence since 2007, and we do not know how often to expect crop failures.

Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations in the climate record and methods for smoothing temporal data), decadal climate variability (the term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence in both climate model simulations and observational data for a 50 - 70 year oscillation in the climate system; significantly Mike also published work with Kerry Emanuel in 2006 showing that the AMO concept has been overstated as regards its role in 20th century tropical Atlantic SST changes, a finding recently reaffirmed by a study published in Nature), in showing how changes in radiative forcing from volcanoes can affect ENSO, in examining the role of solar variations in explaining the pattern of the Medieval Climate Anomaly and Little Ice Age, the relationship between the climate changes of past centuries and phenomena such as Atlantic tropical cyclones and global sea level, and even a bit of work in atmospheric chemistry (an analysis of beryllium - 7 measurements).

A team of scientists is pioneering new strategies for ensuring that polar bears can persist even as summer sea ice — a vital feeding platform — retreats under the climate change that is already in the pipeline no matter how aggressively societies tackle the greenhouse challenge.

In a more recent paper, our own Stefan Rahmstorf used a simple regression model to suggest that sea level rise (SLR) could reach 0.5 to 1.4 meters above 1990 levels by 2100, but this did not consider individual processes like dynamic ice sheet changes, being only based on how global sea level has been linked to global warming over the past 120 years.

I've queried a batch of researchers focused on ice sheets and sea level on these findings, and asked them how their views of sea level changes in a warming world have evolved since the 2007 report from the Intergovernmental Panel on Climate Change.

So how much do changes in the Arctic atmosphere play a role in the loss of sea - ice volume and the apparent failure of the GCMs to reflect the current volume loss?

How would this change in currents affect the amount of heat in the surface layer that is transported into the Arctic and contributes to melting the Arctic Sea Ice?

How do you expect changes in the AMOC to relate to Arctic Sea Ice extent?

Changes in Arctic sea ice are indicative of how much the IPCC has conservatively understated the effects of AGW on natural systems.

How quickly do we act to change energy choices now to limit chances that Arctic sea ice will disappear entirely in summers later in the century (something most biologists agree would greatly diminish bear numbers)?

Or how about the changes in sea ice are normal variations, that the Arctic was ice free during other interglacial periods, that sea ice is an anomaly?

A central topic will be teleconnections in the climate system, i.e. how a change in climate in one part of the globe (e.g. temperatures in the Atlantic or shrinking sea ice cover in the Arctic) can influence climate on other parts of the globe (e.g. Eurasian winter temperatures), and how we can use this information to improve regional climate prediction and therefore regional climate service.

Climate - deniers use this to try to knock down evidence of how climate change will affect polar bears and sea ice, since they believe if they can disprove one tiny aspect of climate change, it will result in a domino effect.

Second, the debates among climatologists nowadays are not over whether there is human - exacerbated climate change — melting polar ice, rise in sea level, more tropical storms, etc. — but over how large the effects are (one or four degrees), and what the specific consequences for each spot on the globe will be.

To learn more about how changes in the Antarctic Ice Sheet could affect sea level, see State of the Cryosphere: Ice Sheets and State of the Cryosphere: Sea Levsea level, see State of the Cryosphere: Ice Sheets and State of the Cryosphere: Sea LevSea Level.

«The Earth is losing an incredible amount of ice to the oceans annually, and these new results will help us answer important questions in terms of both sea rise and how the planet's cold regions are responding to global change,» study researcher John Wahr, a professor of physics at the University of Colorado, said in a press release issued by the Boulder campus.

Francis, who wasn't involved with either study, is one of the main proponents of an idea that by altering how much heat the ocean lets out, sea ice melt and Arctic warming can also change atmospheric circulation patterns, in particular by making the jet stream form larger peaks, or highs, and troughs, or lows.

Vinnikov et al. (1999) used the aforementioned GFDL and Hadley Centre climate models, forced by greenhouse gases and sulfate aerosols, to project how Arctic sea ice extent would change in the future.

The aim of the C - SIDE working group is to reconstruct changes in sea - ice extent in the Southern Ocean for the past 130,000 years, reconstruct how sea - ice cover responded to global cooling as the Earth entered a glacial cycle, and to better understand how sea - ice cover may have influenced nutrient cycling, ocean productivity, air - sea gas exchange, and circulation dynamics.

Donald Perovich is a sea ice geophysicist working on the interaction of sunlight with ice and snow in the Arctic system and how it relates to climate change.

Researchers at this week's conference discuss how Arctic sea ice is fundamentally changing air masses and weather systems in the Northern Hemisphere.

Whenever I write about Arctic ice, a herd of climate change deniers converge in the comments and on social media, barking about how Antarctic sea ice is unchanged or even on the rise.

They explain how, overall, Antarctic sea ice cover (frozen sea surface), for separate reasons involving wind changing in relation to the location of certain warming sea water currents, shows a slight upward trend, though it also shows significant melting in some areas.

But working out the how the atmosphere, ocean, and ice interact to cause changes in Antarctic sea ice is complicated, the NOAA report says.

The new studies, which are both published in Nature Climate Change, focus in on how efforts to curb climate change could affect summer sea ice cover in the AChange, focus in on how efforts to curb climate change could affect summer sea ice cover in the Achange could affect summer sea ice cover in the Arctic.

According to AMEG, here's how climate change in the Arctic has changed weather patterns: Over the past three decades, snow cover has been reduced by 17 - 18 % per decade and sea ice is declining fast because of human - induced global warming.

The largest uncertainty in the future radiative forcing caused by sea - ice loss is related to how clouds in the Arctic will change.

Both studies make an «important contribution» to our understanding of how climate change is likely to affect Arctic sea ice, says Dr Amber Leeson, a lecturer in glaciology and environmental data science from the University of Lancaster, who was not involved in the research.

A researcher from the Finnish Meteorological Institute has been participating in a comparison of how well global ocean models respond to the changes to sea ice and close - to - surface water.

Actually Fielding's use of that graph is quite informative of how denialist arguments are framed — the selected bit of a selected graph (and don't mention the fastest warming region on the planet being left out of that data set), or the complete passing over of short term variability vs longer term trends, or the other measures and indicators of climate change from ocean heat content and sea levels to changes in ice sheets and minimum sea ice levels, or the passing over of issues like lag time between emissions and effects on temperatures... etc..