Sentences with phrase «by a glacier in»

Flathead Lake in Montana's Flathead Valley is fed by the glaciers in Glacier National Park.

Francou B, Vuille M, Wagnon P, Mendoza J and Sicart J - E 2003: Tropical climate change recorded by a glacier in the central Andes during the last decades of the twentieth century: Chacaltaya, Bolivia, 16S.

One talking point you need to address: «In the 1970s scientists were telling us we were all going to be crushed by glaciers in a new ice age!

Chasing Ice follows Balog and his Extreme Ice Survey team as they set up cameras by glaciers in extremely remote places — from Greenland to Alaska.

NASA data contributed to a study led by University of Texas researchers, which shows that the amount of ice lost by glaciers in Greenland depends on their shape.

Not exact matches

Howat and his team were able to figure this out by creating high - resolution topographic models of the glaciers and their boundaries, as well as a numerical model of exactly how much water was flowing off these coastal glaciers and ice caps — technology that wasn't available back in 1996.

The surrender of the whole universe to the physical sciences, represented by A. J. Ayer in philosophy (and by others in medicine and psychology) was a loud, daring little ice floe that tried to pull the glacier with it, failed, and fell into the sea.

Next came another embarrassment, this time to the IPCC itself: the discovery that a 2007 report that the glaciers of the Himalayas could vanish by 2035, published by the IPCC in 2007, was entirely bogus.

Case in point: this old oil company ad that brags how the energy produced by oil can melt a glacier...

Story and Photos by Paul Ross Recipes: Pebre (Chilean Salsa) Chorizo Criollo (Chorizo Sausage from Argentina) Pastel de Choclo (Chilean Meat Pie) Pescado Marinado Estilo Chileno (Marinated Halibut Chilean - Style) Mariscos con Frutas Citricas (Argentine Citrus Seafood) Riding low in the water, this passenger - laden Zodiac ventures close to a calving glacier.

By Martin Kunz, EMEA Segment Leader, Industry with Xylem's Applied Water Systems business Only 2.5 percent of the world's water is fresh water, and of that, only one percent is accessible as much is trapped in glaciers and snowfields.

On a glacier each step you take is tentative, even if your path has been tested by someone in front of you.

Some of the glaciers, first seen by the New Horizons spacecraft in July, hold ice that circulates like the material in a lava lamp.

Researchers led by glaciologist Romain Millan of the University of California, Irvine analyzed new oceanographic and topographic data for 20 major glaciers within 10 fjords in southeast Greenland.

The panel had written that the glaciers of the Himalayas could vanish by 2035 but in January retracted the statement (pdf) as «poorly substantiated.»

Just over 1 % of our planet's glaciers — some 2300 in all — are known to undergo these precipitous movements, though the number is likely to rise as glaciers come under closer surveillance by remote sensing.

Now, by studying glaciers from Tibet to the Arctic islands of the Svalbard archipelago in Norway, researchers are starting to understand why some glaciers swing between extremes of stagnation and crushing flow, and how surges may be predicted.

Roughly 210 million people live in the region, and another 1.3 billion people who live downstream depend on rivers fed in part by glaciers and mountain snowpack.

«Until recently, we had little information on ocean temperature and water depth in these fjords to quantify these processes, so the interpretation of glacier evolution on a case - by - case basis was difficult.»

Reporting in the journal Nature, an international team of researchers led by British Antarctic Survey (BAS) explains that wind - driven incursions of warm water forced the retreat of glaciers in West Antarctica during the past 11,000 years.

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.

By contrast, glaciers in intermediate conditions can easily get out of kilter, accumulating internal heat until enough meltwater builds up at their base to trigger a surge.

The moment of transition from the Ediacaran to the Cambrian world is recorded in a series of stone outcrops rounded by ancient glaciers on the south edge of Newfoundland.

A small glacier lake known as Nagma Pokhari sits nestled in a valley near Mount Everest in Nepal, surrounded by steep walls of sediment that hold the icy waters in place.

As glaciers in most parts of the Himalayas melt, floods caused by the bursting of rapidly expanding glacial lakes pose an increasing risk to mountain communities.

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.

He and colleagues thought that the answer to the floodwater question might also lie in the lakes» moraines — piles of sediments bulldozed by glaciers into high ridges that act as dams.

Scientists have used old aerial surveys to chart surface changes in the Arctic and Antarctic, for example by studying photographs of Greenland's glaciers to document their history.

A study published in 2011 by Scambos, Truffer and Pettit found that one glacier continues to accelerate even 15 years after losing its ice shelf: Röhss Glacier (which used to flow into the Prince Gustav ice shelf) has now reached nine times its former speed.

This phenomenon, almost certainly the result of climate change, is the first modern record of river piracy caused by a melting glacier, researchers report online April 17 in Nature Geoscience.

In a new study, Stuart Thomson, a geologist at the University of Arizona (UA) in Tucson, looked into the past by decoding sands deposited by the river, and the messy piles left behind by the glacieIn a new study, Stuart Thomson, a geologist at the University of Arizona (UA) in Tucson, looked into the past by decoding sands deposited by the river, and the messy piles left behind by the glaciein Tucson, looked into the past by decoding sands deposited by the river, and the messy piles left behind by the glacier.

During ice ages, which are mainly driven by rhythmic variations in Earth's orbit and spin that alter sunlight in the Northern Hemisphere, growing ice caps and glaciers trap so much frozen water on land that sea levels can drop a hundred meters or more.

This acceleration in glacier flow may explain a recent observation by Eric Rignot and Isabella Velicogna of the NASA Jet Propulsion Laboratory.

Beneath a glacier in the Transantarctic Mountains some 12 million years ago, the downhill flow of a massive, growing reservoir of meltwater was restrained by walls of ice.

As glaciers disappear in the rain shadow of the Himalayas, one man is helping farmers irrigate their fields by storing water in an innovative way

This expedition landed on the southwestern confines of the Ross Sea, and, by its explorations, showed that the great ice barrier is in reality the front of an enormous ice field or glacier, mainly floating on the surface of an extended bay or sea, and fed by glaciers coming down from the elevated land on the westerly side and probably also on the eastern.

The rivers that billions of Asians rely on to survive may not be dramatically affected by the meltdown of glaciers in the Tibetan Plateau, according to a new report

Today, as warming waters caused by climate change flow underneath the floating ice shelves in Pine Island Bay, the Antarctic Ice Sheet is once again at risk of losing mass from rapidly retreating glaciers.

Warm ocean waters, driven inland by winds, are undercutting an ice shelf that holds back a vast glacier from sliding into the ocean, researchers report November 1 in Science Advances.

«Today, the Pine Island and Thwaites glaciers are grounded in a very precarious position, and major retreat may already be happening, caused primarily by warm waters melting from below the ice shelves that jut out from each glacier into the sea,» said Matthew Wise of Cambridge's Scott Polar Research Institute, and the study's first author.

Remote Bouvet Island, a tiny, glacier - smothered landmass in the South Atlantic rimmed by 500 - meter - tall cliffs, has a notable distinction: It's the only known spot on Earth, scientists say, that has zero invasive species.

The finding suggests that bryophytes are more resilient than was previously known, the authors say, and likely play a role in the early recolonization of areas revealed by glacier melt, such as those in the Canadian and Alaskan Arctic.

The boulders, they report in the 5 October issue of Science, were deposited by glaciers 1000 years after the end of the Younger Dryas.

The research showed that, compared to pure snow and ice, the reflectivity of the glacier (known as the «albedo») can be reduced by up to 80 % in places where coloured microbial populations are extremely dense, leading to the darkening of the glacier surface.

All these cooking fires are, in effect, drying the region, both by contributing to the melting of glaciers that feed Asia's major rivers as well as by decreasing the evaporation that drives rainfall.

Much of the dust deposit east of the Rockies arrived in the last ice age, which ended some 11,000 years ago, when particles that had been ground up and transported by glaciers were deposited by meltwater streams.

In New Zealand, wood has been found under glacial debris dating to the Younger Dryas, suggesting that glaciers responded to the event by growing.

Atmospheric levels of carbon dioxide belched out by cars and power plants soar, while amphibian populations plummet and glaciers dwindle like an ice cube in your palm.

Australian soils are deficient in vital nutrients including nitrogen, phosphorus, and zinc, mainly because the region is so old, even in geologic time, and most of the country has not been revitalized by the soil - renewing activity of volcanoes or glaciers for tens of millions of years.

The glacier ice found by the team, which came from a layer that began just 50 centimetres below the surface, was dated by analysing the relative abundances of isotopes of argon in a thin layer of overlying volcanic ash.