A fresh perspective on the Cordilleran Ice Sheet | Zendy

I. L. Hendy | Zendy

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A fresh perspective on the Cordilleran Ice Sheet

Author(s) -

I. L. Hendy

Publication year - 2009

Publication title -

geology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.609

H-Index - 215

eISSN - 1943-2682

pISSN - 0091-7613

DOI - 10.1130/focus012009.1

Subject(s) - ice sheet , geology , cryosphere , oceanography , ice sheet model , glacial period , climatology , physical geography , earth science , antarctic sea ice , sea ice , paleontology , geography

The fate of Earth's cryosphere in the coming decades to centuries is a current topic of great debate within the climate science community and wider public arena. The advance and retreat of past ice sheets can shed new light on our understanding of the cyrosphere. The response of a temperate ice mass, like the Cordilleran Ice Sheet (CIS), to climate forcing contributes important clues to what scenario best fi ts the future. One such scenario involves the potential role of melting ice sheets (namely the Greenland Ice Sheet) injecting freshwater into the Atlan- tic Ocean, leading to deep-water shutoff and a frigid eastern North America and Europe. This scenario occurred repeatedly during the last gla- cial interval. Evidence has been easy to fi nd for these freshwater events in the Atlantic, in the form of ice-rafted debris (IRD) layers and anom- alous negative δ

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