Reanalysis of ancient eclipse, astronomic and geodetic data: A possible route to resolving the enigma of global sea-level rise

被引：41

作者：

Mitrovica, JX

Wahr, J

Matsuyama, I

Paulson, A

Tamisiea, ME

机构：

[1] Univ Toronto, Dept Phys, Toronto, ON M5S 1A7, Canada

[2] Univ Colorado, Dept Phys, Boulder, CO 80309 USA

[3] Univ Colorado, CIRES, Boulder, CO 80309 USA

[4] Carnegie Inst Sci, Dept Terr Magnetism, Washington, DC 20015 USA

[5] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

来源：

EARTH AND PLANETARY SCIENCE LETTERS | 2006年 / 243卷 / 3-4期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

ancient eclipses; polar wander; Earth rotation; global sea level; glacial rebound;

D O I：

10.1016/j.epsl.2005.12.029

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

Predictions of the Earth's response to the ice age appear to simultaneously reconcile a set of astronomical, geodetic and ancient eclipse observations related to changes in rotation, thus ruling out ice melting as a major contributor to 20th century sea-level rise. We demonstrate that the reconciliation disappears when an improved theory of rotational stability is applied. Furthermore, our reanalysis of longer satellite records renders previous estimates of the secular change in rotation rate suspect. The updated ice-age predictions and observations permit an anomalous 20th century ice flux of similar to 1 mm/yr equivalent sea-level rise. Thus, the full suite of Earth rotation observations are consistent with a connection between climatic warming and recent melting of ice reservoirs. (c) 2006 Elsevier B.V. All rights reserved.

引用

页码：390 / 399

页数：10