Sentences with phrase «records of glacier retreat»

Records of glacier retreat go back much further than the «last ten years» even in Greenland.

Not exact matches

A comparison of the moraine ages with nearby climate records indicates that Rwenzori glaciers expanded contemporaneously with regionally dry, cold conditions and retreated when air temperature increased.

The first one I looked at is an «own goal» for the contrarians, as it involves Phil Jones bemoaning the discrepancy between glacier retreat in high altitudes, and comparative lack of warming in the UAH troposphere record.

This paper has played a valuable role in calling attention to important work on the physics of tropical glaciers, that can help in teasing out the record of tropical climate change from glacier retreat data.

In Europe, where there is abundant historical information (in the form of paintings, photographs, as well as more formal record - keeping), retreat has been virtually monotonic since the mid 19th century (see e.g. images of the glaciers at Chamonix).

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).

I say «it appears that temperatures have been on the increase for at least 200 years» because NASA (as well as others) tells us that most glaciers in the Northern Hemisphere (at least the ones for which we some type of recording) have been retreating since the 1700s.

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

Eddy then went on to compare records of C14 «abundance» to historical records including the advance and retreat of Alpine glaciers.

What is significant about this paper is that GHG forcing that is supposedly causing exponential, run - away warming, collapse of the polar ice sheets, retreat of the worlds glaciers, etc since around 1960 is not visible at all in the sea level record.

I would recommend a book such as laduries times of feast times of famine as a good record of the advance and retreat of glaciers over the past few thousand years.

The first one I looked at is an «own goal» for the contrarians, as it involves Phil Jones bemoaning the discrepancy between glacier retreat in high altitudes, and comparative lack of warming in the UAH troposphere record.

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..

There are many other references dating from this period available from the Alps: records of advancing snow and ice burying silver and gold mines, alpine villages, farms and pastures being abandoned due to colder climate, even physical evidence recovered today under retreating glaciers.

In general, glaciers retreat due to a combination of rising temperatures and declining precipitation, but the temperature and precipitation records from the Alps indicated that glaciers should have continued advancing until around 1910.

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.