Dust: A Diagnostic of the Hydrologic Cycle During the Last Glacial Maximum

Dust concentrations in ice of the last glacial maximum (LGM) are high in ice cores from Greenland and Antarctica. The magnitude of the enhancements can be explained if the strength of the hydrologic cycle during the LGM was about half of that at present. This notion is consistent with a large decrea...

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Bibliographic Details
Published in:Science
Main Authors: Yung, Yuk L., Lee, Typhoon, Wang, Chung-Ho, Shieh, Ying-Tzung
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 1996
Subjects:
Multidisciplinary
Antarc*
Antarctica
Greenland
Online Access:http://dx.doi.org/10.1126/science.271.5251.962
https://www.science.org/doi/pdf/10.1126/science.271.5251.962
Description
Summary:Dust concentrations in ice of the last glacial maximum (LGM) are high in ice cores from Greenland and Antarctica. The magnitude of the enhancements can be explained if the strength of the hydrologic cycle during the LGM was about half of that at present. This notion is consistent with a large decrease (5°C) in ocean temperature during the LGM, as recently deduced from measurements of strontium and calcium in corals.

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