Sentences with phrase «by glacial advance»

I used to illicit gales of laughter when I quoted (in translation, and in my best Sesame Street Swedish Chef voice) dated documents about destitute farmers overwhelmed by the glacial advance who were seeking parish aid.

Not exact matches

Dating the phases of glacial advance requires to analyze moraines, rocky debris carried along by the glacier.

However, until now, it was thought that the glaciers were only affected by events in the northern hemisphere, based on the dating of past glacial advances.

Evidence from glacial advance / retreat (e.g. the evidence from tropical Andean glaciers you cite above) is often difficult to interpret, because glacial mass balance represents in general a subtle competition between the influences of ablation (determined by changes in temperature thresholds reached) and accumulation (determined by changes in humidity and precipitation).

This is because terrestrial deposits of ancient glacial and interglacial periods1 — 3 are overrun and eroded by more recent glacial advances, and are therefore usually rare, isolated and poorly dated.

The glacial retreat induced by this or any other process can be amplified by similar inverse positive feedbacks as for glacial advances.

Term originally introduced in the late 1930s by Matthes (1939) to describe a broad interval of the late Holocene during which significant glacial advances were observed.

If water (rain, clouds, oceans) is the stabilizer, then it should overwhelm any warming by trace gases, albedo effects of glacial advances and retreats, etc..

By around 2013 computer models had finally advanced to the point where modelers could get convincing glacial cycles.

In the higher altitudes old mines were covered up by advancing glacial ice.

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.