Solar forced Dansgaard/Oeschger events?

被引：21
|
作者：
Muscheler, R.
Beer, J.
机构：
[1] NASA, Goddard Space Flight Ctr, Climate & Radiat Branch, Greenbelt, MD 20771 USA
[2] Univ Maryland Baltimore Cty, Goddard Earth Sci & Technol Ctr, Baltimore, MD 21228 USA
[3] Swiss Fed Inst Aquat Sci & Technol, Dept Surface Waters, CH-8600 Dubendorf, Switzerland
来源：
GEOPHYSICAL RESEARCH LETTERS | 2006年 / 33卷 / 20期
关键词：
D O I：
10.1029/2006GL026779
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
It has been suggested that the strong climatic changes during the last ice age, the so-called Dansgaard/Oeschger (D/O) events, could have been prompted by solar activity changes. This hypothesis is based on the apparent cyclic occurrence of the D/O events and the solar influence on climate during the Holocene on similar time scales. We test this hypothesis by comparing the Be-10 and delta O-18 records from the GRIP ice core. A superimposed epoch analysis allows us to reduce the noise in the data and to extract estimates of solar activity changes in connection to the D/O events. This comparison does not provide convincing evidence for a persistent solar influence on these strong climatic oscillations during the last ice age.
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页数：4
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