Sentences with phrase «small glaciers in»

This does not take into account how much sea level might swell from the metldown of the numerous small glaciers in Alaska, Argentina, Canada and Russia, which already contribute 60 percent of sea level rise from glacial melt.

* see news sheet no. 127 — Small glaciers in the tropical Andes: a forewarning of disappearance (http://www.ird.fr/la-mediatheque/fiches-d-actualite-scientifique/127-petits-glaciers-des-andes-tropicales-une-disparition-annoncee)

The small glaciers in the Central Range of Irian Jaya, the Indonesian portion of New Guinea, have shrunk by well over a mile.

In 1966, a team of U.S. Geological Survey scientists journeyed to two small glaciers in Alaska to dig snow pits needed for measuring snow depth and density at the remote mountainous locations.

And she describes sobering trends: The projection that Switzerland will lose more than half of its small glaciers in the next 25 years; the substantial retreat of glaciers from the Antarctic, Patagonia, the Himalayas, Greenland and the Arctic; the disappearance of iconic glaciers in Glacier National Park, Montana, or reduction to chunks of ice that no longer move (by definition, a glacier must be massive enough to move).

I mean if after an Ice Age you can have large and thick glaciers receding at that rate of natural causes why is it so surprising that smaller glaciers in a warmer climate are receding.

Not exact matches

«Even small changes in glacier melt will result in large impacts downstream from High Asia,» the USAID report cautioned.

Whilst this is a small figure in actual terms, combined with the contribution from other melting glaciers around the world and expansion of the world's oceans, it will have an impact upon society through flooding of low - lying coastal regions.»

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.

Small mountain glaciers play a big role in recharging vital aquifers and in keeping rivers flowing during the winter, according to a new study published in Geophysical Research Letters, a journal of the American Geophysical Union.

The risk level had been raised to red, the highest level on the country's five - point alert system, on Saturday after authorities detected signs of a small eruption beneath a glacier near the Bardarbunga volcano in central Iceland.

As glaciers expanded, spring and summer runoff poured nutrients into the coastal ocean, fueling explosive growth in krill and small animals the whales consumed, they speculate.

However, it is often overlooked that the major ice shelves in the Ross and Weddell Seas and the many smaller shelves and ice tongues buttressing outlet glaciers are also vulnerable to atmospheric warming.»

They found greater amounts of phosphorus in the waters of the Leverett Glacier than had been detected at previous study sites, which have looked mostly at smaller glaciers.

Researchers continue to improve instrument hardware and data processing and are looking ahead to mapping more glaciers in the future, which will likely involve small, unmanned aerial vehicles.

As global temperatures continue to increase, the hastening rise of those seas as glaciers and ice sheets melt threatens the very existence of the small island nation, Kiribati, whose corals offered up these vital clues from the warming past — and of an even hotter future, shortly after the next change in the winds.

Incessant mountain rain, snow and melting glaciers in a comparatively small region of land that hugs the southern Alaska coast and empties fresh water into the Gulf of Alaska would create the sixth largest coastal river in the world if it emerged as a single stream, a recent study shows.

Consistent with observed changes in surface temperature, there has been an almost worldwide reduction in glacier and small ice cap (not including Antarctica and Greenland) mass and extent in the 20th century; snow cover has decreased in many regions of the Northern Hemisphere; sea ice extents have decreased in the Arctic, particularly in spring and summer (Chapter 4); the oceans are warming; and sea level is rising (Chapter 5).

There is certainly an increase in small - scale seismic activity when glaciers retreat and this is associated with isostaic rebound of the crust.

Models of mountain (alpine) glaciers are applied to solve similar problems to those models used for polar ice sheets, but typically have a higher resolution (a smaller grid size) and need to consider the effects of steep and often variable bed slopes, and the transverse stresses found in valley glaciers.

Worldwide, small ice caps and glaciers have reacted particularly dynamically to worldwide increases in temperatures9 - 11, and it has been proposed that the volume loss from mountain glaciers and ice caps like these is the main contributor to recent global sea - level rise12.

In Patagonia, analysis of glacier area and length changes shows that recession is widespread (90.2 % have retreated since 1870), is more rapid in smaller land - terminating glaciers, and that rates of recession are acceleratinIn Patagonia, analysis of glacier area and length changes shows that recession is widespread (90.2 % have retreated since 1870), is more rapid in smaller land - terminating glaciers, and that rates of recession are acceleratinin smaller land - terminating glaciers, and that rates of recession are accelerating.

Glaciers are small and have short response times, so they react quickly to changes in air temperature and precipitation.

It begins with an adrenaline - inducing flight in a small plane from Reykjavik to Egilsstadir, soaring over the country's desolate highlands, including Iceland's most active volcano and the largest glacier in Europe.

Orlowski's documentary profiles famed environmental photographer James Balog who, together with a small and dedicated team, has sought to capture on film the retreat of Earth's glaciers using an army of time - lapse cameras positioned across the globe — from Alaska and Glacier National Park in Montana to Iceland and Greenland.

Serve small portions to children explaining that the blue is the icy center of a glacier (a mass of ice formed by compacted snow) and the white on top is snow with silt (fine bits of sand and clay) in it.

Desert, mountains, a small lake in which flamingos nibble, and of course glaciers, which we are saving for tomorrow.

Saw so much more with people who knew where to go - from the best views of the Franz Josef glacier, to what to buy in the small town of Hokitita.

We could never have organized a small plane ride, grass field landing, wade across a glacier fed river, hike, and a jet boat out, in a town with a population of 70, and not listed in any guidebook.

BL: These images deal with the beauty in the details, but they evoke the sublime: a feeling of being very small in the face of something very immense and powerful like a storm, the climate, or how tiny one is compared to a glacier.

The point I wanted to make and is better made with the correction, is that the contribution of individual glacier in terms of the current flows that have been discussed in this topic are small.

The small glaciers (less than 100 sq. km) of Svalbard do seem to be rapidly shrinking yet some of the larger ones are in near steady - state (unpublished thesis data).

Obstructionists offer weak doubts in comparison, compare their vile swipes against reality with small Arctic glaciers disappearing since 2006 http://eh2r.blogspot.com/..

[Response: I couldn't find the specific post you refer to, but in any case the answer is that alpine glaciers cover a very small fraction of the globe, and their disappearance will have very little impact on local temperature.

And for 10 days, I was able to share this intimacy: I depended on the wood collected from these trees, the water that was siphoned from melting glaciers above me, the cabbage and potatoes grown in small family gardens, and the rice and lentils carried upon the backs of my Tamang hosts.

Examination of the acceleration of other glaciers such as the Petermann Glacier indicate a much smaller acceleration than that observed on three glaciers we have focused, and indeed it is in the summer and of a magnitude that the Zwally effect could explain (Rignot, 2005).

It should be noted that this is the point of Howat et al., they are not trying to make the point that the smaller glaciers are more important, as they were not comprehensive in examining all glaciers.

They found that while two of the largest glaciers in that area — Kangerdlugssuaq and Helheim — contribute more to the total ice loss than any other single glaciers, the 30 or so smaller glaciers there contributed 72 percent of the total ice lost.

There is certainly an increase in small - scale seismic activity when glaciers retreat and this is associated with isostaic rebound of the crust.

We've seen this in glaciers after the loss of the Larsen A and B ice shelves (relatively small shelves on the Antarctic Peninsula), and we've seen a similar effect in Greenland, where the floating end of the glacier, and the fjord choked with calved bergs, could apparently perform a similar braking function, now lost for several rapidly - retreating glaciers.

Greenland ice stream acceleration: e.g., Rignot and Kanagaratnam (2006), also, small earthquakes in Greenland, caused by sliding glaciers, had become twice as frequent: Ekström et al. (2006).

In an area smaller than Switzerland, it has 983 glaciers and 2,794 glacial lakes, some of which have burst to produce deadly glacial lake floods.

As for how this could be — and in light of the findings of the references listed above — Rankl et al. reasoned that «considering increasing precipitation in winter and decreasing summer mean and minimum temperatures across the upper Indus Basin since the 1960s,» plus the «short response times of small glaciers,» it is only logical to conclude that these facts «suggest a shift from negative to balanced or positive mass budgets in the 1980s or 1990s or even earlier, induced by changing climatic conditions since the 1960s.»

Glaciers of several mountain regions in the NH retreated in response to orbitally forced regional warmth between 11,000 and 5000 years ago, and were smaller than at the end of the 20th century (or even absent) at times prior to 5000 years ago.

In East Antarctica, small glacier losses led to a near - zero loss of 4 ± 61 gigatons per year.

The relative speedup of outlet glaciers is small in most years, less than 15 percent (Joughin et al. 2008).

Before the Little Ice Age (LIA), Greenland's glaciers, like the Jakobshavn, were smaller than seen in the present day (Young 2011).

The authors conclude that the there is a higher retreat - rate for marine terminating glaciers in the recent warm period; in the 1930s when there is a natural mode of variability active that caused regional temperatures around Greenland to be anomalously warm, there was a higher retreat rate for land - terminating glaciers (the lower retreat rate today is in part because they are currently smaller).

This tendency for small alpine glaciers in the Pacific Northwest to have different mass balance histories, yet high cross correlation coefficients was previously noted by Letreguilly (1989).

Limits must be strict enough to avert the worst consequences of global warming that are already being felt in extreme weather events, droughts, floods, melting glaciers and polar ice caps and rising sea levels that threaten to swamp coastal communities and small island states.