Dust: A diagnostic of the hydrologic cycle during the last glacial maximum

被引:100
|
作者
Yung, YL [1 ]
Lee, T [1 ]
Wang, CH [1 ]
Shieh, YT [1 ]
机构
[1] ACAD SINICA, INST EARTH SCI, TAIPEI 115, TAIWAN
关键词
D O I
10.1126/science.271.5251.962
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
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 degrees C) in ocean temperature during the LGM, as recently deduced from measurements of strontium and calcium in corals.
引用
收藏
页码:962 / 963
页数:2
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