Sentences with phrase «at polar sea»

Just look at the polar sea ice graph.

Not exact matches

After a report about four drowned polar bears seen far out at sea, they were put on the USA threatened list — even though there has been no demonstrated diminution in population.

Scientists with Cassini's radar investigation will be looking this week at their final set of new radar images of the hydrocarbon seas and lakes that spread across Titan's north polar region.

That corresponds to a roughly 3 1/2 week shift at either end — and seven weeks of total loss of good sea ice habitat for polar bears — over the 35 years of Arctic sea ice data.

The case of this one polar bear and the failure of her offspring to survive in the new environmental conditions of the Arctic doesn't bode well for the future of the species, especially as Arctic sea ice continues to retreat at a record pace.

The Interior Department lists the polar bear as a «threatened» species — one at risk of becoming endangered — due to dangerous declines in their sea ice habitat

At a hamlet on the southern end of Ellesmere called Grise Fiord, whose Inuit name means «the place that never thaws out,» the Inuit have watched the sea ice that supports their traditional seal, polar bear and whale hunting decrease every year.

«Billions of juvenile fish under the Arctic sea ice: New under - ice net used in large - scale study on the prevalence of polar cod at the ice underside.»

«When we look forward several decades, climate models predict such profound loss of Arctic sea ice that there's little doubt this will negatively affect polar bears throughout much of their range, because of their critical dependence on sea ice,» said Kristin Laidre, a researcher at the University of Washington's Polar Science Center in Seattle and co-author of a study on projections of the global polar bear population.

This past September the National Snow and Ice Data Center in Boulder, Colo., which collects polar and ice information for the government, announced that there was less sea ice covering the Arctic Ocean than at any time since satellite measurements began in 1979.

The research is timely given the extreme winter of 2017 - 2018, including record warm Arctic and low sea ice, record - breaking polar vortex disruption, record - breaking cold and disruptive snowfalls in the United States and Europe, severe «bomb cyclones» and costly nor'easter s, said Judah Cohen, director of seasonal forecasting at AER and lead author of the study.

Sea ice is a crucial part of the ecosystems at both poles, providing habitat and influencing food availability for penguins, polar bears and other native species.

Titan's north polar region, which is bejeweled with sprawling hydrocarbon seas and lakes, was dark when Cassini first arrived at the Saturn system in 2004.

Our study suggests that at medium sea levels, powerful forces, such as the dramatic acceleration of polar ice cap melting, are not necessary to create abrupt climate shifts and temperature changes.»

Lead author Nicholas Pilfold, now a postdoctoral fellow at San Diego Zoo Global, said «the pattern of long - distance swimming by polar bears in the Beaufort Sea shows the fingerprint of climate change.

A new review analyzing three decades of research on the historic effects of melting polar ice sheets found that global sea levels have risen at least six meters, or about 20 feet, above present levels on multiple occasions over the past three million years.

«This paper ties it all together and shows a very clear relationship between the disappearance of sea ice and increasing predation intensity on seabirds,» says Andrew Derocher, a polar bear specialist and Arctic ecologist at the University of Alberta in Edmonton, Canada.

The P - 3 Orion, based at NASA's Wallops Flight Facility in Virginia, will carry IceBridge's most comprehensive instrument suite: a scanning laser altimeter that measures surface elevation, three types of radar systems to study ice layers and the bedrock underneath the ice sheet, a high - resolution camera to create color maps of polar ice, and infrared cameras to measure surface temperatures of sea and land ice.

The paper draws a convincing connection between the intensification of the Amundsen Sea low - pressure system and increasing snow accumulation, said David Bromwich, a polar weather and climate scientist with the Byrd Polar and Climate Research Center at Ohio State University in Columbus, who was not an author on the new paper.

«People have been talking about the possible link between winds and Antarctic sea ice expansion before, but I think this is the first study that confirms this link through a model experiment,» commented Axel Schweiger, a polar scientist at the UW Applied Physics Lab.

When the model held the polar winds at a constant level, the sea ice increased only 20 percent as much.

The North Pole and Its Seekers October 28, 1868 New Expeditions to the Arctic Regions June 24, 1871 The Latest Arctic Explorations — The Remarkable Escape of the Polaris Party June 7, 1873 Rescue of the Remaining Survivors of the Polaris October 4, 1873 The Latest Polar Expedition December 26, 1874 Work for Arctic Explorers July 17, 1875 The British Arctic Expedition The Coming Arctic Expeditions May 22, 1875 The British Arctic Expedition August 28, 1975 July 3, 1876 The Search for the Pole The British Arctic Expedition December 23 and 30, 1876 The Recent Arctic Expedition January 20, 1877 Another Approach: Balloons and Airships Some Suggestions for Future Polar Expeditions February 13, 1877 Proposed New British Polar Expedition September 20, 1879 To the North Pole by Balloon July 13, 1895 Wellman's Airship for His North Polar Expedition By the Paris Correspondent of the Scientific American July 7, 1906 The Wellman Polar Airship Expedition By the Paris Correspondent of the Scientific American June 22, 1907 Farther North The American Arctic Expedition September 14, 1878 The Peary Arctic Expedition July 15, 1893 Nansen's Polar Expedition March 14, 1896 The Recent Failures of Arctic Expeditions August 29, 1896 The Return of Lieut. Peary September 27, 1902 The Polar Regions June 11, 1904 Peary's New Ship for Work in Arctic Seas October 8, 1904 Peary and the North Pole July 15, 1905 Peary's Arctic Ship, The «Roosevelt» July 15, 1905 Peary's «Farthest North» November 17, 1906 Race to the Finish: Peary and Cook Peary's Quest of the North Pole July 18, 1908 Peary and the North Pole August 21, 1909 Dr. Cook and the North Pole September 11, 1909 Dr. Cook's Discovery of the North Pole September 11, 1909 Honor to Whom Honor is Due September 18, 1909 Commander Peary's Discovery of the North Pole September 18, 1909 Retrospect of the Year 1909: Exploration January 1, 1910 «Investigating» Peary April 22, 1911 THE SOUTH POLE Exploring Antarctica Antarctic Exploration January 23, 1897 To South Polar Lands February 13, 1897 The Voyage of the «Discovery» February 3, 1906 Antarctic Expeditions, Past and Present Some Heroes of Exploration November 11, 1911 Dr. Charcot's Antarctic Expedition November 30, 1907 Motoring Toward the Pole By Motor Car to the South Pole By J. S. Dunnet October 19, 1907 The Shackleton Antarctic Expedition By John Plummer August 29, 1908 Lieut. Shackleton's Antarctic Expedition April 3, 1909 Lieut. Shackleton April 9, 1910 Two Novel Motor Sleds By Walter Langford May 14, 1910 Race to the Finish: Amundsen and Scott The Antarctic Expeditions January 13, 1912 The Discovery of the South Pole March 16, 1912 Amundsen's Attainment of the South Pole Progress of Antarctic Exploration By G. W. Littlehales, Hydrographic Office, United States Navy March 23, 1912 Capt. Scott at the South Pole April 13, 1912 Shadows at the South Pole June 15, 1912 The Scott Expedition and its Tragic End A Sacrifice Made for Scientific Ideals February 22, 1913 Achievements and Lessons of the Scott Expedition March 1, 1913 To the South Pole with the Cinematograph Film Records of Scott's Ill - Fated Expedition June 21, 1913 Science in the Heroic Age The Height of the Antarctic Continent By Walter Langford June 4, 1910 The Renewed Siege of the Antarctic January 17, 1914 Shackleton's South Polar Expedition The Value of His Scientific Observations By Henryk Arctowski June 17, 1916 Thawing Scott's Legacy A pioneer in atmosphere ozone studies, Susan Solomon rewrites the history of a fatal polar expedition By Sarah Simpson December 2001 Greater Glory In the race to the South Pole, explorer Robert F. Scott refused to sacrifice his ambitious science agenda By Edward J. Larson June 2011

More collaboration and direct dialogue between polar researchers at venues and conferences will facilitate joint studies in Arctic forests, tundra, and sea ice.

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.

Global warming will also mean more forest fires; hurricanes hitting cities that are at present too far north of the equator to be affected by them; tropical diseases spreading beyond their present zones; the extinction of species unable to adapt to warmer temperatures; retreating glaciers and melting polar icecaps; and rising seas inundating coastal areas.

Premier Anna Bligh, who launched the initiative at Sea World's polar bear shores on the Gold Coast, said climate change was everyone's responsibility.

Freshwater injection into the North Atlantic and Southern oceans increases sea level pressure at middle latitudes and decreases it at polar latitudes (Figs. 20, S22), but the impact is different in the North Atlantic than in the Southern Ocean.

Impact of ice melt on storms Freshwater injection onto the North Atlantic and Southern Oceans causes increase of sea level pressure at middle latitudes and decrease at polar latitudes.

Judith Curry's commentariat is agog at a paper announcing the geoid will somehow stop polar meltwater from raising sea level in the tropics

The more uncommon animals we treat are at the zoo — penguins, sea lions, polar bears and ostriches to name a few.»

And especially now with human development and climate change, the world is being altered at an incredible pace — from rising seas, disappearing polar ice, to our major rivers and estuaries and how they have been changed by us.

We need to learn to see not just with Western eyes but with Islamic eyes and Inuit eyes, not just with human eyes but with golden - cheeked warbler eyes, coho salmon eyes, and polar bear eyes, and not even just with eyes at all but with the wild, barely articulate being of clouds and seas and rocks and trees and stars.

These are increasingly impactful, intersecting phenomena for densely populated coastal areas that are being developed at the same time that melting polar ice is causing sea levels to rise.

At a time when melting polar sea ice is causing so many to focus on which political power will place its flag over the Arctic, controlling the Northwest Passage shipping lanes and the petroleum resources beneath the sea ice, Miami artist Xavier Cortada has developed a project that engages people across the world below to plant a green flag and native tree to help address global climate change.

Her work showed that polar bears, while best known for their life at sea or on sea ice pursuing seals, have been able, at least in some circumstances, to gain significant nutrition on land as well, scarfing down geese and goose eggs, grasses and other fare when sea ice is in retreat.

Now the polar research group at the University of Washington, which annually deploys the sea ice instruments and autonomous cameras providing the imagery that flooded the «Instanet,» has posted a helpful primer.

Although images of polar bears at sea may seem innately plaintive, the sea is in fact their element, as their scientific name — Ursus Maritimus — signifies.

If polar bears have been around for few hundred thousand years they have experienced a variety of environmental changes in the Arctic, including periods when there was more sea ice than present as well as periods when seasonal sea ice was considerably less than at present.

Sea ice is critical for polar marine ecosystems in at least two important ways: (1) it provides a habitat for photosynthetic algae and nursery ground for invertebrates and fish during times when the water column does not support phytoplankton growth; and (2) as the ice melts, releasing organisms into the surface water [3], a shallow mixed layer forms which fosters large ice - edge blooms important to the overall productivity of polar seas.

This change speed is dizzying us in the Arctic, even snow buntings come back very early this spring, and polar bears are seen on the thin enough sea ice for seals at the North Pole.

You can get a fresh look at the sea ice by clicking here to check out the North Pole Webcams left behind in April by the polar research team.

At an average height of 13,000 feet above sea level, they make up the largest area of ice outside the polar regions, nearly a sixth of the world's total.

Dr. Will Chapman's Cryosphere Today web page offers an archive of daily polar sea ice cap concentrations (1979 — present) at:

It is not that the polar regions are amplifying the warming «going on» at lower latitudes, it is that any warming going on AT THE POLES is amplified through inherent positive feedback processes AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...&raquat lower latitudes, it is that any warming going on AT THE POLES is amplified through inherent positive feedback processes AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...&raquAT THE POLES is amplified through inherent positive feedback processes AT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...&raquAT THE POLES, and specifically this is primarily the ice - albedo positive feedback process whereby more open water leads to more warming leads to more open water, etc. *** «Climate model simulations have shown that ice albedo feedbacks associated with variations in snow and sea - ice coverage are a key factor in positive feedback mechanisms which amplify climate change at high northern latitudes...&raquat high northern latitudes...»

The findings reinforce suggestions that strong positive ice — temperature feedbacks have emerged in the Arctic15, increasing the chances of further rapid warming and sea ice loss, and will probably affect polar ecosystems, ice - sheet mass balance and human activities in the Arctic...» *** This is the heart of polar amplification and has very little to do with your stated defintion of amplifying the effects of warming going on at lower latitudes.

The ACIA report described how the retreat of the sea ice has devastating consequences for polar bears, whose very survival may be at stake.

We do not have to lose the polar ice - caps for disastrous sea - level rise to occur, given the number of major cities situated at or close to sea - level.

For example, conditions at the poles affect how much heat is retained by the earth because of the reflective properties of ice and snow, the world's ocean circulation depends on sinking in polar regions, and melting of the Antarctic and Greenland ice sheets could have drastic effects on sea level.

Most interesting is that the about monthly variations correlate with the lunar phases (peak on full moon) The Helsinki Background measurements 1935 The first background measurements in history; sampling data in vertical profile every 50 - 100m up to 1,5 km; 364 ppm underthe clouds and above Haldane measurements at the Scottish coast 370 ppmCO2 in winds from the sea; 355 ppm in air from the land Wattenberg measurements in the southern Atlantic ocean 1925-1927 310 sampling stations along the latitudes of the southern Atlantic oceans and parts of the northern; measuring all oceanographic data and CO2 in air over the sea; high ocean outgassing crossing the warm water currents north (> ~ 360 ppm) Buchs measurements in the northern Atlantic ocean 1932 - 1936 sampling CO2 over sea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly aversea; 355 ppm in air from the land Wattenberg measurements in the southern Atlantic ocean 1925-1927 310 sampling stations along the latitudes of the southern Atlantic oceans and parts of the northern; measuring all oceanographic data and CO2 in air over the sea; high ocean outgassing crossing the warm water currents north (> ~ 360 ppm) Buchs measurements in the northern Atlantic ocean 1932 - 1936 sampling CO2 over sea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly aversea; high ocean outgassing crossing the warm water currents north (> ~ 360 ppm) Buchs measurements in the northern Atlantic ocean 1932 - 1936 sampling CO2 over sea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly aversea surface in northern Atlantic Ocean up to the polar circle (Greenland, Iceland, Spitsbergen, Barents Sea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly averSea); measuring also high CO2 near Spitsbergen (Spitsbergen current, North Cape current) 364 ppm and CO2 over sea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly aversea crossing the Atlantic from Kopenhagen to Newyork and back (Brements on a swedish island Lundegards CO2 sampling on swedish island (Kattegatt) in summer from 1920 - 1926; rising CO2 concentration (+7 ppm) in the 20s; ~ 328 ppm yearly average

If both Greenland and West Antarctica shed the entirety of their ice burden, global sea levels would rise by 12 to 14 m. Although these icecaps would not disintegrate within a century, the loss of even a third of their mass — quite plausible if the rate of polar ice loss continues to double each decade — would force up the oceans by at least 4 m, with disastrous socioeconomic and environmental consequences.