Sentences with phrase «for glacier advances»

Note 1 of Tony's post references sources for glacier advances, church and town records, taxes on farms, harvest dates etc..

This ties in with many of the glacier climate records from the Northern Hemisphere, although we don't yet have much evidence for glacier advances in Patagonia around the 16th century.

For the past thousand years, finer curvatures in trends can be seen in Kirkby's comparisons for glacier advance / retreat versus temperature reconstructions (and cosmic ray forcings), as illustrated in http://s24.postimg.org/rbbws9o85/overview.gif.

Not exact matches

The changes to our planet as a result of global warming are apparent for all to see: the receding glaciers in temperate climates, the reduction in rainfall and advancing deserts in Africa and the lakes in the Mideast and Asia that are virtually disappearing.

Some glaciers in the Karakoram mountains, for example, recently advanced into areas that had been ice - free for a half - century.

Scientists aim to find out why an Alaska glacier is ignoring all climate signals as it advances to the sea — and what that means for sea levels around the world.

Analysis of the data reveals that 87 % of glaciers have retreated (click on the image for a more detailed figure) and that the change from advance to retreat has occurred progressively with latitude.

The climatic conditions that cause an advance or a retreat may be different for glaciers located in different climate regimes (see Chapter 4).

However, they also report that «the net change for all the glaciers, weighted by glacier width at the grounding line, has been [one of] advance» (emphasis added) with an average rate of increase of +12 ± 88 m yr - 1 (see Figure 1 below).

Soil and rocks on the Earth's surface reveal the advance and retreat of glaciers over the land surface, and fossilized pollen traces out rough boundaries of where the climate conditions were right for different species of plants and trees to live.

There are 19 black runs for advanced skiers, and the resort's runs cross two separate glaciers.

Re # 40: -LSB-... As for the 1940s, I'm not familiar with the details of GNP, but in Washington State where I live, glaciers did retreat substantially until about the 1940s, before advancing again until the late 1970s.

In general, tidal glaciers are cyclical, advancing over 1,000 years or so and then rapidly retreating for one or two centuries.

in a SciAm Item for the fact that a series of under - the - icesheet Volcanoes were causing the emmisions of large quantities of water from under the edge of the glaciers, where they meet the sea, and the fact that these eruptions were causing rapid advances in the sheets march toward the sea.

At the peak of the «Little Ice Age,» villagers there prayed for the Aletsch glacier to stop advancing.

«Alpine glaciers have been retreating since the early 19th century, and were advancing for several centuries before that.

Using new remote sensing methods to generate an updated glacier inventory for the Karakoram region of Asia — which is part of the Hindu Kush - Karakoram - Himalaya mountain range located between the borders of India, Pakistan, Afghanistan and China — Rankl et al. (2014) developed what they describe as «a new comprehensive dataset on the state of advancing, stable and retreating glaciers, including the temporal and spatial variations of frontal positions between 1976 and 2012.»

Surely the obvious rational conclusion is the climate is generally warming, but local weather conditions in a few countries cause some glaciers to advance for a few years.

The aim is to establish the past history of ice advance and retreat, to look for old grounding lines - the locations where Larsen's feeding glaciers have previously rested on the seafloor.

Soil and rocks on the Earth's surface reveal the advance and retreat of glaciers over the land surface, and fossilized pollen traces out rough boundaries of where the climate conditions were right for different species of plants and trees to live.

While glaciers are indeed retreating in places — as part of the cyclical advance / retreat that has also been going on for millennia — they are advancing or thickening in others.

This is a complete lie as not «all» glaciers are retreating at their fastest rate and many in Alaska for instance have been advancing.

Using uncovered material for dating glacier advance / recession requires that it is definitely still in growth position.

Another one of the ice paradoxes is that glaciers can advance for either reason.

Hubbard Glacier defies climate change, continues advancing Karen McColl — CBC News — June 13, 2015 A Yukon glacier is slowly advancing towards an Alaskan river, setting the stage for an awesome collision of natural forces.

On the Guardian's forums, you'll find endless claims that the hockey stick graph of global temperatures has been debunked; that sunspots are largely responsible for current temperature changes; that the world's glaciers are advancing; that global warming theory depends entirely on computer models; that most climate scientists in the 1970s were predicting a new ice age.

He discusses the advance of many glaciers in Iceland and Norway, for example, while the evidence for accelerated melting of the major Greenland ice sheet is ignored.

Number of areas that display glacier advances for every century during the Holocene.

After ocean depths had cooled for another 30 million years, Arctic ice caps began to form and the earth entered an age with multiple episodes of glacier advances and retreats causing sea levels to rise and fall.

On the Guardian's forums, you'll find endless claims that thehockeystick graph of global temperatures has been debunked; that sunspots are largely responsible for current temperature changes; that the world's glaciers are advancing; that global warming theory depends entirely on computer models; that most climate scientists in the 1970s were predicting a new ice age.

I have no doubt glaciers advance and recede frequently, sometimes for months, sometimes for years, or decades or centuries, and at the times of their retreats, they themselves lose the ice record of their history for the section that melts..

Above that it was warm enough for glaciers to be in stasis or recede and below that it was cold enough for advance.

Translation: «In medieval times people could not believe that the worsening climate and the advancing glaciers were happening naturally, and saw in them the punishment by a higher being for the godless manner, in which both mine owners and miners had behaved.

In later posts you will see that glaciers advanced and receded and advanced again, all for natural reasons, and not in sync with your supposition.

The question is how far will the levels of CO2, CH4, N - oxide, CFC and HFC, global land - sea temperatures, melting of ice sheets and glaciers, and sea levels need to rise before the critics realize that the delicate balance of the Earth's atmosphere — the thin lung - like membrane on which advanced life depends — must not be abused as an open sewer for industrial waste products.

For example, analyses of glacier mass balances, volume changes and length variations along with temperature records in the western European Alps (Vincent et al., 2005) indicate that between 1760 and 1830, glacier advance was driven by precipitation that was 25 % above the 20th century average, while there was little difference in average temperatures.

The observed effects of cryosphere reduction include modification of river regimes due to enhanced glacial melt, snowmelt advance and enhanced winter base flow; formation of thermokarst terrain and disappearance of surface lakes in thawing permafrost; decrease in potential travel days of vehicles over frozen roads in the Arctic; enhanced potential for glacier hazards and slope instability due to mechanical weakening driven by ice and permafrost melting; regional ocean freshening; sea - level rise due to glacier and ice sheet shrinkage; biotic colonisation and faunal changes in deglaciated terrain; changes in freshwater and marine ecosystems affected by lake - ice and sea - ice reduction; changes in livelihoods; reduced tourism activities related to skiing, ice climbing and scenic activities in cryospheric areas affected by degradation; and increased ease of ship transportation in the Arctic.