Millennial-band climate spectrum resolved and linked to centennial-scale solar cycles

被引：60

作者：

Clemens, SC ^{[1
]}

机构：

[1] Brown Univ, Providence, RI 02912 USA

来源：

QUATERNARY SCIENCE REVIEWS | 2005年 / 24卷 / 5-6期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/j.quascirev.2004.10.015

中图分类号：

P9 [自然地理学];

学科分类号：

0705 ; 070501 ;

摘要：

Spectral comparison of the Hulu Cave, GRIP, and GISP2 delta O-18 records suggests that the single dominant period centered on 1470 yr in the GISP2 spectrum, the so-called '1500-yr cycle', is an artifact of the age model. The Th-230-dated Hulu Cave record indicates a millennial-band spectrum with a weak spectral peak near this period flanked by two stronger peaks centered on 1667 and 1190-yr, similar to the GRIP delta O-18 record. All three millennial-band cycles may derive from heterodynes of centennial-band solar cycles as observed in the Holocene record of atmospheric C-14 production. This suggests a link between centennial-scale solar variability and abrupt climate change at the millennial time scale. (c) 2004 Elsevier Ltd. All rights reserved.

引用

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页码：521 / 531

页数：11

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