The Last Glacial Maximum

@article{Clark2009TheLG,
  title={The Last Glacial Maximum},
  author={Peter U. Clark and Arthur S. Dyke and Jeremy D Shakun and Anders E. Carlson and Jorie Clark and Barbara Wohlfarth and Jerry X. Mitrovica and Steven W. Hostetler and Am Mccabe},
  journal={Science},
  year={2009},
  volume={325},
  pages={710 - 714}
}
The Melting Is in the Details Global sea level rises and falls as ice sheets and glaciers melt and grow, providing an integrated picture of the changes in ice volume but little information about how much individual ice fields are contributing to those variations. Knowing the regional structure of ice variability during glaciations and deglaciations will clarify the mechanisms of the glacial cycle. Clark et al. (p. 710) compiled and analyzed more than 5000 radiocarbon and cosmogenic surface… Expand
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References

SHOWING 1-10 OF 147 REFERENCES
Timing of the Last Glacial Maximum from observed sea-level minima
TLDR
This work uses faunal assemblages and preservation status of the sediments to distinguish open marine, shallow marine, marginal marine and brackish conditions, and estimates the timing and the mass of the ice sheets using radiocarbon dating and glacio-hydro-isostatic modelling to estimate the maximum volume and timing of the initial melting phase. Expand
Global glacial ice volume and Last Glacial Maximum duration from an extended Barbados sea level record
Abstract Fundamental characteristics of the climate system during the most recent precessional cycle of the Earth's orbit around the Sun consist of the final expansion of land ice to its maximum… Expand
Exposure ages from mountain dipsticks in Mac. Robertson Land, East Antarctica, indicate little change in ice-sheet thickness since the Last Glacial Maximum
Past changes in East Antarctic Ice Sheet (EAIS) volume are poorly known and diffi cult to measure, yet are critical for predicting the response of the ice sheet to modern climate change. In… Expand
Geological and geomorphological insights into Antarctic ice sheet evolution
TLDR
The contribution of cosmogenic isotope analysis of exposed bedrock surfaces and marine geophysical surveying to the understanding of Antarctic ice sheet evolution on a range of time-scales is illustrated. Expand
Glacial and Climate History of the Antarctic Peninsula since the Last Glacial Maximum
Abstract During the Last Glacial Maximum (LGM), ice thickened considerably and expanded toward the outer continental shelf around the Antarctic Peninsula. Deglaciation occurred between >14 ka BP and… Expand
Sea-level changes at the LGM from ice-dynamic reconstructions of the Greenland and Antarctic ice sheets during the glacial cycles
Abstract New experiments were performed with three-dimensional thermomechanical models of the Greenland and Antarctic ice sheets to simulate their behaviour during the glacial cycles, to reconstruct… Expand
Deglacial history of the West Antarctic Ice Sheet in the Weddell Sea embayment: Constraints on past ice volume change
The retreat history of the West Antarctic Ice Sheet (WAIS) since the Last Glacial Maximum is important for understanding the process of rapid deglaciation, constraining models that seek to predict… Expand
Sea Level Change Through the Last Glacial Cycle
Sea level change during the Quaternary is primarily a consequence of the cyclic growth and decay of ice sheets, resulting in a complex spatial and temporal pattern. Observations of this variability… Expand
Extensive dynamic thinning on the margins of the Greenland and Antarctic ice sheets
Many glaciers along the margins of the Greenland and Antarctic ice sheets are accelerating and, for this reason, contribute increasingly to global sea-level rise. Globally, ice losses contribute ∼1.8… Expand
North American ice-sheet dynamics and the onset of 100,000-year glacial cycles
TLDR
The importance of ice dynamics and ice–climate interactions in establishing the 100,000-year glacial cycles is demonstrated, with enhanced North American ice-sheet growth and the subsequent merging of the ice sheets being key elements. Expand
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