Sentences with phrase «recorded by a glacier»

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.

Not exact matches

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.

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.

Morlighem was pleasantly surprised to discover that 90 percent of the glacier depths he had estimated were within 160 feet (50 meters) of the actual depths recorded by the OMG survey.

The existence of a Little Ice Age from roughly 1500 to 1850 is supported by a wide variety of evidence including ice cores, tree rings, borehole temperatures, glacier length records, and historical documents.

During the record - setting wildfire season of 2012, Box was anxious to quickly get to Greenland to collect samples of the ice to see if soot from Colorado was landing on the glaciers, but by that time, traditional sources of science research funding were already allocated, so in his unorthodox, punk rock style, Box set out on his own and set up The Dark Snow Project to crowd - fund his research.

Thomas (1993), p. 398; Oerlemans (1994); Dyurgerov and Meier (2000); Oerlemans (2005) surveyed glacier records around the world and found that «for the period from 1900 to 1980, 142 of the 144 glaciers retreated»; see review by Alley et al. (2005).

Whether we look at the steady increase in global temperature; the buildup of greenhouse gases in the atmosphere to the highest level in a half - million years; the march of warmest - ever years (9 of the10 hottest on record have occurred since 2000); the dramatic shrinking of mountain glaciers and Arctic sea ice; the accelerating rise in sea level; or the acidification of our oceans; the tale told by the evidence is consistent and it is compelling.

During the record - high temperature summer of 2003, some Swiss glaciers retreated by an unprecedented 150 meters.

The existence of a Little Ice Age from roughly 1500 to 1850 is supported by a wide variety of evidence including ice cores, tree rings, borehole temperatures, glacier length records, and historical documents.

It has been researched by many climatologists and as Ladurie demonstrated in «Times of feast times of famine» the advances of the glaciers in a variety of locations worldwide was unprecedented in the record.

THERE HAS BEEN A WARMING TREND FROM THE 70s THRU THE LATE 90s,... accompanied by other changes tied to a warming trend (record low arctic sea ice extent & thickness, retreating glaciers, retreating snow lines, warming ocean surface temps, increases in sea height, de-alkalinizing oceans).

Such and similar data (like court records) has indeed been used by those trying to date the maximum advance of LIA glaciers in Norway and the Alps.

The team collated measurements recorded by five different satellites to track changes in the speed of more than 30 glaciers since 1992.

Answers: Brian Luckman's presentation on «inhomogeneity in the tree ring record created when the tree was scarred by a glacier».

But anyway, the bristlecone record is corroborated by ocean sediments, by lake sediments, by glaciers.

Reader Erasmus de Frigid draws attention to the inhomogeneity in the tree ring record created when the tree was scarred by a glacier, evidenced by a terrifically interesting cross-section picture of the results of glacier scarring on ring widths.

Sea levels are rising (ask the Mayor of Miami who has spent tax monies to raise road levels), we've had 15 of the hottest years eve measured, more precipitation is coming down in heavy doses (think Houston), we're seeing more floods and drought than ever before (consistent with predictions), the oceans are measuring warmer, lake ice in North America is thawing sooner (where it happens in northern states and Canada), most glaciers are shrinking, early spring snowpacks out west have declined since the 1950's, growing seasons are longer throughout the plains, bird wintering ranges have moved north, leaf and bloom dates recorded by Thoreau in Walden have shifted in that area, insect populations that used to have one egg - larva - adult cycle in the summer now have two, the list goes on and on.

and «Brunstein's article on Almagre (AAR 1996 by recollection) reported that trapper records said that the 1840s had huge snowfall» What puzzles me was the statement in the beginning: «the tremendous growth pulse in the surviving part of the trunk immediately following the glacier scar.»

Their sources include church records, commissions of inquiries into glacier disasters, taxes on farms affected by glaciers, town records, population records, illustrations and lithographs, observations by travellers and scientists, scientific papers, historic articles on glaciers from contemporary sources in English, French, German and Italian, correlation with wine and grain harvest dates, alpine clubs, mountaineers and tree line / plant growth records amongst other sources.

While most of the data derived by these glacier studies precedes the early 16th century decline, which you describe, I have seen another record of alpine silver and gold mines being covered up by the advancing snow and ice around this time.

The Guardian More on Everest Cutting the Crap on Mount Everest Sherpa to Climb Everest for Record - Setting 20th Time, Scatter Edmund Hillary's Ashes China Paves Road To Mount Everest Everest and Himalayan Glaciers Could Vanish By 2035, Imperiling a Billion People

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.

These methods include inference of surface temperature change from vertical temperature profiles in the ground (bore holes) at many sites around the world, rate of glacier retreat at many locations, and studies by several groups of the effect of urban and other local human influences on the global temperature record.

Historical records from early settlements reveal glacier boundaries, as does ice core data taken by drilling down into the annual layers of ice that make up glaciers.

Rivers fed by retreating glaciers are at record levels.