Sentences with phrase «glaciers melting at»

With its ice cap and glaciers melting at a rapid rate, the island is at the center of climate change conversation.

The use of the term «collapse,» which connotes an imminent calamity, rather than a long, relatively slow process (glaciers melting at, literally, a glacial pace) generated quite a bit of chatter in the climate journalism community, but in interviews, scientists defended the word as apt for this situation.

In the real world, effects of AGW are so localized that the top and bottom of the same glacier melt at different rates.

Consequently exposed to the radiation influx — particularly strong in the tropics at high elevation — glaciers melt at high rates.

Not exact matches

Natural shifts in ocean currents could account for about half the melting of Alpine glaciers in this decade, Matthias Huss and colleagues at the University of Fribourg reported in June.

The study shows that it's plausible, even if Mars was generally frozen over, that peak daily temperatures in summer might sneak above freezing just enough to cause melting at the edges of glaciers.

Millan, a UCI graduate student researcher in Earth system science, and his colleagues analyzed 20 major outlet glaciers in southeast Greenland using high - resolution airborne gravity measurements and ice thickness data from NASA's Operation IceBridge mission; bathymetry information from NASA's Oceans Melting Greenland project; and results from the BedMachine version 3 computer model, developed at UCI.

Speaking at a development summit, India Prime Minister Manmohan Singh came out in full support of the beleaguered IPCC head Rajendra Pachauri, the first time Singh had addressed the issue after IPCC offered its «regret» on the blunder it committed in predicting that glaciers in the Himalayas would melt away by 2035.

Additionally, the Zachariae glacier at the ice sheet margin began its retreat and moved into deeper water, which exacerbated the melt, said Bevis.

Scientists from Rice University and Texas A&M University - Corpus Christi's Harte Research Institute for Gulf of Mexico Studies have discovered that Earth's sea level did not rise steadily but rather in sharp, punctuated bursts when the planet's glaciers melted during the period of global warming at the close of the last ice age.

Located approximately 16 to 2,300 feet below the glacier, the five ocean sensors are connected to a weather station at the surface, creating the first cabled observatory on a floating, moving, and rapidly melting Greenland glacier.

More than 80 % of the ice on Africa's highest peak has melted since the early 20th century, joining other glaciers that are ebbing from the world's tropical mountains at an accelerating rate.

A report issued by the United Nations Environment Program in April says at least 44 lakes in Nepal and Bhutan are filling so rapidly with icy water from melting glaciers that they could burst their banks within five to 10 years.

Glaciers in Alaska's Denali National Park are melting faster than at any time in the past four centuries because of rising summer temperatures, a new study finds.

So when the team returned to their flight paths five years later, they were surprised at how fast the coastal glaciers had melted.

The ice cores showed the glaciers on Mt. Hunter are melting more now than at any time in the past 400 years.

Ask any schoolkid how the first people came to the Americas, and you might get some version of the following: They crossed a spit of land connecting Alaska and Siberia and made their way south between melting glaciers at the end of the last ice age.

«We still don't know exactly where the meltwater came from, but given that the average temperature at the nearest weather station has risen by about 1.5 degrees Celsius (2.7 degrees Fahrenheit) over the last 50 years, it makes sense that snow and ice are melting and the resulting water is seeping down beneath the glacier,» Thompson said.

If the ice at the bottom of a glacier melts, the point where it connects to the bedrock moves backward, farther inland, losing ice to the ocean in the process.

I spoke to him back on July 24th, just before he left for an extended visit to the melting glaciers of Greenland; I called him at his office in Washington, D.C.

Glacial collapse is unprecedented in western Tibet, which for decades has resisted the effects of climate change while glaciers in southern and eastern Tibet have melted at an accelerating rate.

A key step forward came last year when scientists at Utrecht University in the Netherlands, using remote sensing equipment, found that snow and glacier melt is extremely important to the Indus and Brahmaputra basins, but less critical to others.

These include the investigation into leaked e-mails from University of East Anglia's Climatic Research Unit, the Intergovernmental Panel on Climate Change's (IPCC's) gaffe about rapid melting of Himalayan glaciers, and the failure to achieve a strong outcome at the Copenhagen climate conference last December.

What's more, dust freed from within glaciers as the ice melts can seed new cryoconite granules, says Andy Hodson, who studies glacier ecology at the University of Sheffield.

Also in the mid-1990s, another group of scientists proposed the now widely accepted mechanism for how lakes can form under glaciers: Heat radiating from Earth's interior is trapped under the thick, insulating ice sheet, and pressure from the weight of all the ice above it lowers the melting point of the ice at the bottom.

Research led by The University of Texas at Austin has found that wind is responsible for bringing warm water to Totten's underbelly, causing the glacier to melt from below.

So when wind pulls warm water up from down deep, the temperature difference experienced at the interface of the water and ice can effectively submerse the glacier in a hot bath, with some areas experiencing more than a 10-fold increase in melt rate.

«We want to preserve the information contained in the glaciers before they start melting,» says Carlo Barbante, professor of analytical chemistry at the University of Venice and a co-founder of the project.

Sea levels have also risen due to melting glaciers and ice sheets at the poles.

The entire cave system flooded at the end of the last ice age, when melting glaciers raised sea levels.

Also at the AGU meeting, Yasunari's co-author and Goddard colleague William Lau presented the results of a separate study today suggesting that soot heating the atmosphere over India could accelerate the glacier - melting effects of the warm currents that rise up to the Himalayan chain, in a «heat pump» effect.

MELT ZONE The Totten ice shelf (shown here) holds back a massive glacier, which drains a France - sized portion of East Antarctica and could raise sea levels by at least 3.5 meters if it slides into the sea.

Himalayan glaciers are melting and retreating at their edges because of global warming.

A computer model and radar data show that one melting glacier the size of Uruguay could wreak havoc at the bottom of the world — and far beyond

At its calving front, where the glacier effectively ends as it breaks off into icebergs, some of the ice melts while the rest is pushed out, floating into the ocean.

A new study by scientists at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California, and the University of California, Irvine, shows that while ice sheets and glaciers continue to melt, changes in weather and climate over the past decade have caused Earth's continents to soak up and store an extra 3.2 trillion tons of water in soils, lakes and underground aquifers, temporarily slowing the rate of sea level rise by about 20 percent.

These findings suggest that Greenland's glaciers have been experiencing increasing ice loss for at least three decades — a result that may reinforce scientists» concerns over the stability of the melting ice sheet.

For a pair of recent studies, UCI and NASA JPL scientists examined three neighboring glaciers in West Antarctica that are melting and retreating at different rates.

«Our observations provide a crucial piece of evidence to support that suspicion, as they directly reveal the intensity of ice melting at the bottom of the glaciers during that period,» Khazendar said.

That's because the IPCC models only take into account temperature changes at the surface of glaciers, but not the rapid melting that occurs when glaciers calve and break up into the ocean, Rignot said.

The studies examined three neighboring glaciers that are melting and retreating at different rates.

Two new studies by researchers at the University of California, Irvine and NASA have found the fastest ongoing rates of glacier retreat ever observed in West Antarctica and offer an unprecedented look at ice melting on the floating undersides of glaciers.

Co-author Dr Ivan Haigh, lecturer in coastal oceanography at the University of Southampton and also based at NOCS, adds: «Historical observations show a rising sea level from about 1800 as sea water warmed up and melt water from glaciers and ice fields flowed into the oceans.

Add to your check list of reality the fact that Himalayan glaciers are melting at an alarming rate (see RC threads on tropical glacier melt); enough so that flash flooding, from overflowing glacier - melt lakes, is a serious and life - threatening concern of downstream populations.

Geothermal heat flux can contribute to basal melt and so facilitate sliding at the base of the glacier.

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.

Either the glaciers would have to flow into the ocean at unrealistic rates, or rapid melting would have to be triggered over a much larger area of the ice sheet than current evidence suggests.

Student project of Mainz University installs wind - catching screen at the Swiss Rhône glacier to test its effect on its melting rate

In countless interviews scientists have cautioned that melting glaciers like Greenland and Antarctica will take hundred of years at least.

Anders Levermann, a professor of dynamics of the climate system at Potsdam University, Germany, suggested that half was a result of thermal expansion, and half was from melt water from glaciers.