Sentences with phrase «polar sea ice extent»

Naturally many factors influence polar sea ice extent, such as weather patterns, winds, -LSB-...]

Recent trends in the decline of Arctic polar sea ice extent continued in 2016.

Naturally many factors influence polar sea ice extent, such as weather patterns, winds,

Not exact matches

They then used the satellite record of Arctic sea ice extent to calculate the rates of sea ice loss and then projected those rates into the future, to estimate how much more the sea ice cover may shrink in approximately three polar bear generations, or 35 years.

This year, sea ice in the Arctic reached its smallest maximum extent since satellites began tracking polar ice patterns, according to the National Snow and Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201ice in the Arctic reached its smallest maximum extent since satellites began tracking polar ice patterns, according to the National Snow and Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201ice patterns, according to the National Snow and Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201Ice Data Center, while scientists have also forecast ice - free Arctic summers in two to three decades (ClimateWire, July 16, 201ice - free Arctic summers in two to three decades (ClimateWire, July 16, 2013).

But over the past decades, the melt season has grown longer and the average extent of Arctic sea ice has diminished, changing the game for many Arctic marine mammals — namely beluga, narwhal and bowhead whales; ringed, bearded, spotted, ribbon, harp and hooded seals; walruses; and polar bears.

Climate change is pushing temperatures up most rapidly in the polar regions and left the extent of Arctic sea ice at 1.79 million square miles at the end of the summer melt season.

The established icons of Arctic climate change are the polar bear and, to a lesser extent, those indigenous communities that are trying to maintain traditional ways in the face of slushy floes and the relentless erosion of coasts exposed to waves as sea ice retreats.

Extent, for once, is crucial in determining the amount of absorbed solar radiation, the area of polar bear (and other animals») habitat, the amount of snow that falls onto sea ice, etc..

From the Archives, Oct. 2, 2009 The established icons of Arctic climate change are the polar bear and, to a lesser extent, those indigenous communities that are trying to maintain traditional ways in the face of slushy floes and the relentless erosion of coasts exposed to waves as sea ice retreats.

The corresponding future temperatures in Greenland are comparable to those inferred for the last interglacial period 125,000 years ago, when paleoclimatic information suggests reductions of polar land ice extent and 4 to 6 m of sea level rise.

Comments Off on Histrionics over Arctic temperatures & sea ice extent: implications for polar bears

Keywords: Arctic sea ice, Antarctic sea ice, passive microwave imaging, global warming, climate change, polar ice caps, sea ice extent, sea ice dispersion, trends, uncertainty in trends, statistical inference

Tagged 30 year baseline, Beaufort Sea, Chukchi Sea, climatology, Cryosphere Today, NSIDC, polar bear status, sea ice extent, summer sea Sea, Chukchi Sea, climatology, Cryosphere Today, NSIDC, polar bear status, sea ice extent, summer sea Sea, climatology, Cryosphere Today, NSIDC, polar bear status, sea ice extent, summer sea sea ice extent, summer sea sea ice

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Tagged Arctic basin, Bering Sea, Cape Morris Jesup, extent, facts, Greenland, polar bear, press conference, sea ice, spike, State of the Polar Bear, Svalbard, temperature, ToroSea, Cape Morris Jesup, extent, facts, Greenland, polar bear, press conference, sea ice, spike, State of the Polar Bear, Svalbard, temperature, Torosea ice, spike, State of the Polar Bear, Svalbard, temperature, Toronto

They used all the scientific papers they could find that investigated both polar bears and sea ice, which added up to 92, and scored their positions on sea ice extent and whether it is decreasing significantly and the threat of extinction versus adaptability of polar bears.

A map of sea ice extent at the climax of the Last Glacial Maximum (both perennial and seasonal ice), prepared with the help of a colleague, makes it possible to discuss what genetic and fossil evidence can tell us about the probable effects of glacial conditions on polar bears and ringed seals.

At this time of year, sea ice extent numbers are meaningless for polar bears.

Thus, the concept of increasing CO2 is causing increasing sea level rise from polar ice melt embodies two assumptions that need to be established with physical evidence: 1) the extent to which increased CO2 will cause increased temperatures, assumptions or models do not suffice; and 2) the extent to which increased temperatures will cause Antarctic ice melt.

So an increased GHG effect should manifest in the polar regions in a decrease in winter sea ice extent and a smaller increase in summer sea ice extent relative to the winter maximum extent (ie a smaller annual range in sea ice extent).

Researchers at CIRES» National Snow and Ice Data Center [About NSIDC] investigate the dynamics of Antarctic ice shelves, new techniques for the remote sensing of snow and freeze / thaw cycle of soils, the role of snow in hydrologic modeling, linkages between changes in sea ice extent and weather patterns, large - scale shifts in polar climate, river and lake ice, and the distribution and characteristics of seasonally and permanently frozen grouIce Data Center [About NSIDC] investigate the dynamics of Antarctic ice shelves, new techniques for the remote sensing of snow and freeze / thaw cycle of soils, the role of snow in hydrologic modeling, linkages between changes in sea ice extent and weather patterns, large - scale shifts in polar climate, river and lake ice, and the distribution and characteristics of seasonally and permanently frozen grouice shelves, new techniques for the remote sensing of snow and freeze / thaw cycle of soils, the role of snow in hydrologic modeling, linkages between changes in sea ice extent and weather patterns, large - scale shifts in polar climate, river and lake ice, and the distribution and characteristics of seasonally and permanently frozen grouice extent and weather patterns, large - scale shifts in polar climate, river and lake ice, and the distribution and characteristics of seasonally and permanently frozen grouice, and the distribution and characteristics of seasonally and permanently frozen ground.

Average annual sea ice extent in both polar regions was low in 2016.

For the year 2016, sea ice extent in both polar regions was at levels well below what is typical of the past several decades.

There is a widespread idea that there are actual and robust measurements of polar bear populations, the extent of glaciers, the rate of sea - level rise, and the extent of polar sea ice.

It is true that this is consistent with the idea that there has been continuous global warming, although it is complicated by the fact that the Antarctic sea ice extent still seems to be about the same, i.e., the «global» warming only seems to have affected the northern polar region, not the southern polar region.

Not only that, but if rising CO2 levels were responsible for the decline of sea ice and implied effects on polar bears since 1979 (when CO2 levels were around 340 ppm), why has spring ice extent been so variable since 1989 (when the first big decline occurred) but so little changed overall since then?

Tied for fourth lowest sea ice extent, in a three - way tie for lowest sea ice volume, the fastest one month sea ice loss for the date, and unusual Arctic cyclone activity affecting the decayed ice of the polar regions, focus just on the lake too trivializes what's happening in a region the size of the Arctic Ocean.

Schliebe, S., K. D. Rode, J. S. Gleason, J. Wilder, K. Proffitt, T. J. Evans, and S. Miller, 2008: Effects of sea ice extent and food availability on spatial and temporal distribution of polar bears during the fall open - water period in the Southern Beaufort Ssea ice extent and food availability on spatial and temporal distribution of polar bears during the fall open - water period in the Southern Beaufort SeaSea.

Sea ice extent over polar oceans is a major critical parameter for understanding and forecasting oceanic circulation and earth climate...

Climate change is pushing temperatures up most rapidly in the polar regions and left the extent of Arctic sea ice at 1.79 million square miles at the end of the summer melt season.

The Multisensor Analyzed Sea Ice Extent - Northern Hemisphere (MASIE - NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizSea Ice Extent - Northern Hemisphere (MASIE - NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizIce Extent - Northern Hemisphere (MASIE - NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell Extent - Northern Hemisphere (MASIE - NH) products provide measurements of daily sea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizsea ice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizice extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell extent and sea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizsea ice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizice edge boundary for the Northern Hemisphere and 16 Arctic regions in a polar stereographic projection at both 1 km and 4 km grid cell sizes.

The score on PC1 shows a separation between on the one hand the position that Arctic sea ice extent is shrinking and that this poses a threat to polar bears (most scientific articles and science - based blogs) and on the other side the position that Arctic sea ice is not shrinking or that it's due to natural variability and that polar bears are not threatened (pseudo-skeptical blogs).

Most scientific articles as well as science - based blogs assess Arctic sea ice extent to be shrinking and polar bears to be threatened as a result, and most denier blogs take a contrary view on both sea ice and polar bears.

What researchers have found hasn't been encouraging, at least for polar bears: summertime sea ice extent in 2007 fell half below average for the past three decades.

«Two findings were most critical to FWS's listing determination: (1) extensive declines in Arctic sea ice extent already have occurred and are projected to continue; and (2) the polar bear depends on sea ice for its continued survival as a species.

With polar sea ice [not polar ice caps] for about 30 years we have been fairly accurately measuring it, and in arctic it has significantly decreased, 2007 and 2012 were lowest ice extent during summer.

Hi iceman, Sorry for the tardy reply, that pesky real life thing again...:) The reason there is so little excitement about the record high sea ice extent in the antarctic (aside from it having no appealing potential victims, like polar bears) versus the record low arctic sea ice is probably because the southern record is only a matter of 2 % anamoly, whereas in the north we are now looking at levels over 40 % below average.

• As far as is known, the record low extent of sea ice in March 2017 had no impact on polar bear health or survival.

Tagged activist scientists, advocacy, Amstrup, climate models, global warming, Polar Bears International, sea ice declines, sea ice extent, September sea ice, starving polar bears

https://judithcurry.com/2017/01/09/skin-in-the-game/#comment-834593 When polar sea ice has record low extents, there is more snow and cold that follows.

That is because the extent of sea ice in early summer and late fall means little to polar bears, in part because most bears eat very little then, even if they are on the ice.

Across the Arctic, there has been only a marginal decline in total sea ice extent (Fig. 6) between March and June, the critical spring feeding period when polar bears require the ice as a hunting platform for gorging on young, fat seals.