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deglaciation

deglaciation

1 7.9
The melting and moving back of glaciers or large ice sheets from a land area
  • noun
  • /dɪˌɡleɪʃiˈeɪʃən/
  • Specialized
translation icon : desglaciación
  • Scientists study deglaciation to understand its impact on global sea levels and climate change.
  • years of deglaciation

Examples

  • Here we present a statistical test of the orbital forcing hypothesis, focusing on the rapid deglaciation events known as terminations.

    Blog text (29)
  • The chemistry of lakes continues to change for the next several centuries after deglaciation, and some of the more dramatic and ecologically important transformations do not begin until this time period.

    Academic text (2007)
  • It is the most likely trigger for eventual deglaciation, and we cannot simply ignore this.

    Blog text (29)
  • In this section, we discuss processes that typically occur in the five years following deglaciation (figure 2a).

    Academic text (2007)
  • This confirms that CO2 is not the forcing that initially drives the climatic system during a deglaciation.

    Blog text (23)
  • During the first century and a half after deglaciation, there is a steady increase in lake water DOC and a gradual, though site-specific, rise in N availability (Engstrom et al. 2000).

    Academic text (2007)
  • Rather, deglaciation is probably initiated by some insolation forcing (1, 31, 32), which influences first the temperature change in Antarctica (and possibly in part of the Southern Hemisphere) and then the CO2.

    Blog text (23)
  • Seawater d18O reconstructions north of the equator suggest fresher surface conditions during the last glacial and track the northern high-latitude climate change during the last deglaciation.

    Blog text (29)
  • In most lakes, alkalinity and pH declines do not begin until about 200 years after deglaciation and therefore are barely evident in lakes occupying the low-elevation forelands in Glacier Bay proper.

    Academic text (2007)
  • The process of deglaciation has significantly altered the landscape of the region over thousands of years.

Synonyms

thaw
vsdeglaciation
  • UK
12 2.0

A period when snow and ice melt because the weather is warmer

is a longer climatic process of ice retreat rather than just seasonal melt
ice melt
vsdeglaciation
  • Specialized
2 3.5

Ice changing into water in large areas like glaciers and sea ice

includes long-term retreat of ice sheets and glaciers, not only surface loss
ablation
vsdeglaciation
  • UK
1 9.5

Loss of ice from a glacier surface by melting or evaporation

covers regional ice retreat and landscape change beyond mere surface loss

Antonyms

glaciation
  • Specialized
3 7.9

Large areas covered by very thick ice that change the land

Surface Forms

deglaciation singular
deglaciations plural

Morphology

deglaciation = glaciation (semi-transparent) = de + glaci + ation

For learners who know 'glaciation', adding 'de-' gives the regular meaning of reversal or removal, i.e. the loss or retreat of glaciation.

Etymology

The word deglaciation starts with de- meaning 'remove' or 'away', and the rest comes from glacier meaning 'ice'. So deglaciation is like 'ice being taken away', the melting and retreat of glaciers.