Sentences with phrase «rapid ice retreat»
Passive microwave data (SSM / I) distributed by the National Snow and Ice Data Center (NSIDC) indicate that rapid ice retreat observed in May has slowed down somewhat in June.
https://www.searcharcticscience.org/ Not exact matches
This exposed tall ice «cliffs» at their margin with an unstable height, and resulted in rapid retreat of the glaciers from marine ice cliff instability between 12,000 and 11,000 years ago.
«That means the rapid retreat of Arctic sea ice poses an especially serious threat for polar cod.
Instead, Levy documented through LIDAR and time - lapse photography a rapid retreat of ground ice in Garwood Valley, similar to the lower rates of permafrost melt observed in the coastal Arctic and Tibet.
Under these conditions, a disproportionately rapid retreat of summertime sea ice in the central Arctic Ocean over the course of the next few decades, followed by its complete disappearance — depending on how quickly CO2 levels rise — roughly 250 years from now, is to be expected.
Recent glacial history and rapid ice stream retreat in the Amundsen Sea.
Arctic and Antarctic Sea Ice Mayhem: AGU Mashup / / Published on Dec 24, 2017 Early snow retreat on the West Siberian Plains warms air temperatures, amplifying Rossby waves, causing a ridge and warming over Laptev Sea (thus rapid Arctic ice losIce Mayhem: AGU Mashup / / Published on Dec 24, 2017 Early snow retreat on the West Siberian Plains warms air temperatures, amplifying Rossby waves, causing a ridge and warming over Laptev Sea (thus rapid Arctic ice losice loss).
This feedback could potentially result in the rapid loss of parts of the ice sheet, as grounding lines retreat along troughs and basins that deepen towards the ice sheet's interior.
Pine Island Glacier could collapse — stagnate and retreat far up into the bay, resulting in rapid sea level rise — within the next few centuries, raising global sea levels by 1.5 m11, 12, out of a total of 3.3 m from the entire West Antarctic Ice Sheet13.
The rapid shrinkage of glaciers around the Antarctic Peninsula, coupled with the potential for ice - shelf collapse and grounding line retreat, raises concerns for the future of the West Antarctic Ice Sheet, and this is an area of urgent current research [ice - shelf collapse and grounding line retreat, raises concerns for the future of the West Antarctic Ice Sheet, and this is an area of urgent current research [Ice Sheet, and this is an area of urgent current research [3].
Ice shelves in West Antarctica, in particular, face a potentially rapid retreat driven by warm water intruding and eating away at ice from belIce shelves in West Antarctica, in particular, face a potentially rapid retreat driven by warm water intruding and eating away at ice from belice from below.
Arctic sea ice extent continued a rapid retreat through the first two weeks of July as a high pressure cell moved over the central Arctic Ocean, bringing higher temperatures.
In 2002, the 12 km (7.5 mile) long floating terminus of the glacier entered a phase of rapid retreat, with the ice front breaking up and the floating terminus disintegrating and accelerating to a retreat rate of over 30 m (100 ft) per day.
It's also true that this summer saw the most rapid rates of ice retreat yet:
Recent estimates indicate that the Antarctic sea ice cover is expanding at a statistically significant rate with a magnitude one - third as large as the rapid rate of sea ice retreat in the Arctic.
Similar patterns of ice calving and retreat leading to rapid glacier acceleration have also been observed in Greenland.
Recent work has suggested that rapid retreat is already underway for sections of the West Antarctic ice sheet, raising the possibility of increasing contributions to sea - level rise.
A study using Earth Remote Sensing satellite radar interferometry (EERS - 1 and -2) observations from 1992 through 2011 finds «a continuous and rapid retreat of the grounding lines of Pine Island, Thwaites, Haynes, Smith, and Kohler» Glaciers, and the authors conclude that «this sector of West Antarctica is undergoing a marine ice sheet instability that will significantly contribute to sea level rise in decades to centuries to come» (Rignot et al. 2014).
The latest movie movie (5) shows the rapid retreat of arctic sea ice in summer 2007 and 2008.
Geothermal conditions impart a significant control on the ice sheet's transient response, particularly during phases of rapid retreat.
Insights from this study suggests that large sectors of contemporary ice sheets overlying geothermally active regions, such as Siple Coast, Antarctica, and NE Greenland, have the potential to experience rapid phases of mass loss and deglaciation once initial retreat is initiated.
Carved by earlier advances of ice during colder periods, the troughs enable warm, salty water to reach the undersides of glaciers, fueling their increasingly rapid retreat.
Community - based observations and field data for the Bering Sea ice cover summarized in the Sea Ice for Walrus Outlook (SIWO) indicate that even though Bering Sea ice was extensive, it was thinner than in past decades and hence susceptible to rapid retreice cover summarized in the Sea Ice for Walrus Outlook (SIWO) indicate that even though Bering Sea ice was extensive, it was thinner than in past decades and hence susceptible to rapid retreIce for Walrus Outlook (SIWO) indicate that even though Bering Sea ice was extensive, it was thinner than in past decades and hence susceptible to rapid retreice was extensive, it was thinner than in past decades and hence susceptible to rapid retreat.
If the low SLP in the central Arctic persists, we can expect to see rapid retreat of ice in these regions as well as in the Canada Basin.
The evidence for rapid climate change is compelling: Sea level rise, Global temperature rise, Warming oceans, Shrinking ice sheets, Declining Arctic sea ice, Glacial retreat, Extreme events, Ocean acidification, Decreased snow cover http://climate.nasa.gov/evidence/ It's changing «rapidly».
In Sverdrup Pass, central Ellesmere Island, rapid glacier retreat is exposing intact plant communities whose radiocarbon dates demonstrate entombment during the Little Ice Age (1550 — 1850 AD)...
In the Amundsen Sea Embayment region of West Antarctica, where glaciers terminate in the ocean and extend over the waters via floating ice tongues, six major glaciers are experiencing rapid rates of retreat.
This ice may extend much further north and is susceptible to rapid retreat and melt, in particular under the influence of fall storms that further fragment the ice cover and enhance ocean to ice heat flow.
The anomalous rapid retreat of the ice area in August could not be explained by the summer — nor by the wintertime atmospheric forcing.
This adds a new concern to rapid ice sheet retreat.
In fact, one study showed that warming in the western Arctic owing to the rapid retreat of sea ice is 3.5 times greater than at other times and places not affected by dramatic retreat.16 This warming has been known to affect up to 932 square miles (1,500 square kilometers), with the effect peaking in autumn.16
Thus, West Antarctica is not the only potential source of rapid change; part of the East Antarctic ice sheet is also susceptible to rapid retreat because of its direct contact with the ocean and because the bed beneath the ice slopes landward (Fig. 1), which makes it less stable.
Because of its cold - adapted features and rapid warming, climate change impacts on Alaska are already pronounced, including earlier spring snowmelt, reduced sea ice, widespread glacier retreat, warmer permafrost, drier landscapes, and more extensive insect outbreaks and wildfire, as described below.
«Climate models have predicted a retreat of the Arctic sea ice; but the actual retreat has proven to be much more rapid than the predictions,» said Claire Parkinson, a climate researcher at NASA Goddard.
«PARIS — As the Envisat satellite marks 10 years in orbit, the European Space Agency says the instruments onboard continue to observe the rapid retreat of one of Antarctica's ice shelves due to climate change.»
2) The water will warm rapidly due to rapid summer sea ice retreat.
Donald D. Blankenship, a senior researcher at UT's Institute for Geophysics (UTIG) and one of the authors of the study, explained that understanding the evolution of the ice sheet over the East Antarctic landscape as well as its points of vulnerabilities for rapid retreat allows them to predict what could potentially happen to the region in the coming years.
The rapid collapse of the northernmost section of the Larsen Ice Shelf (Larsen A), over a few days in January 1995, indicated that, after retreat beyond a critical limit, ice shelves may disintegrate rapidIce Shelf (Larsen A), over a few days in January 1995, indicated that, after retreat beyond a critical limit, ice shelves may disintegrate rapidice shelves may disintegrate rapidly.
In addition, we discuss why this recent rapid retreat of Arctic summer sea ice might largely be a consequence of a slow shift in ice - thickness distribution, which will lead to strongly increased year - to - year variability of the Arctic summer sea - ice extent.
The rapid nature of observed and predicted changes in the Arctic suggests that Arctic sea ice could possibly undergo nonlinear threshold behavior as it retreats.
The authors note that the rapid retreat of Arctic sea ice is one of the most direct indicators of ongoing climate change on our planet.
On the Bering Sea, the ice cover is in rapid retreat.
Climate scientist Claire Parkinson, from NASA Goddard Space Flight Center, Greenbelt, Maryland, says, «Climate models have predicted a retreat of the Arctic sea ice; but the actual retreat has proven to be much more rapid than the predictions.