Lifetime of Anthropogenic Climate Change: Millennial Time Scales of Potential CO2 and Surface Temperature Perturbations

被引：247

作者：

Eby, M. ^{[1
]}

Zickfeld, K. ^{[1
]}

Montenegro, A. ^{[1
]}

Archer, D. ^{[2
]}

Meissner, K. J. ^{[1
]}

Weaver, A. J. ^{[1
]}

机构：

[1] Univ Victoria, Sch Earth & Ocean Sci, Victoria, BC V8W 3P6, Canada

[2] Univ Chicago, Dept Geophys Sci, Chicago, IL 60637 USA

来源：

JOURNAL OF CLIMATE | 2009年 / 22卷 / 10期

关键词：

CARBON-CYCLE; ATMOSPHERIC LIFETIME; OCEAN; CIRCULATION; MODEL; DYNAMICS; EFFICIENT;

D O I：

10.1175/2008JCLI2554.1

中图分类号：

P4 [大气科学（气象学）];

学科分类号：

0706 ; 070601 ;

摘要：

Multimillennial simulations with a fully coupled climate-carbon cycle model are examined to assess the persistence of the climatic impacts of anthropogenic CO2 emissions. It is found that the time required to absorb anthropogenic CO2 strongly depends on the total amount of emissions; for emissions similar to known fossil fuel reserves, the time to absorb 50% of the CO2 is more than 2000 yr. The long-term climate response appears to be independent of the rate at which CO2 is emitted over the next few centuries. Results further suggest that the lifetime of the surface air temperature anomaly might be as much as 60% longer than the lifetime of anthropogenic CO2 and that two-thirds of the maximum temperature anomaly will persist for longer than 10 000 yr. This suggests that the consequences of anthropogenic CO2 emissions will persist for many millennia.

引用

页码：2501 / 2511

页数：11