Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL087585 |
Internal Variability Dominates Over Externally Forced Ocean Circulation Changes Seen Through CFCs | |
Lester, J. G.1,2; Lovenduski, N. S.3,4; Graven, H. D.1,2; Long, M. C.5; Lindsay, K.5 | |
2020-04-23 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS |
ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2020 |
卷号 | 47期号:9 |
文章类型 | Article |
语种 | 英语 |
国家 | England; USA |
英文摘要 | Observations of oceanic transient tracers have indicated that the circulation in the Southern Ocean has changed in recent decades, potentially driven by changes in external climate forcing. Here, we use the CESM Large Ensemble to analyze changes in two oceanic tracers that are affected by ocean circulation: the partial pressure of chlorofluorocarbon-12 (pCFC12) and the idealized model tracer Ideal Age (IAGE) over the 1991 to 2005 period. The small ensemble mean change in IAGE suggests that there has been very little externally forced change in Southern Ocean circulation over this period, in contrast to strong internal variability. Further, our analysis implies that real-world observations of changes in pCFC12 may not be a robust way to characterize externally driven changes in Southern Ocean circulation because of the large internal variability in pCFC12 changes exhibited by the individual ensemble members. |
英文关键词 | internal variability Southern Ocean model ensemble Circumpolar Deep Water Subantarctic Mode Water CFC12 |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000536639500019 |
WOS关键词 | ANTHROPOGENIC TRENDS ; VENTILATION ; SATURATION ; EMERGENCE ; INSIGHTS ; IMPACT ; WORLD ; SF6 |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
URL | 查看原文 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/248957 |
专题 | 气候变化 |
作者单位 | 1.Imperial Coll London, Dept Phys, London, England; 2.Imperial Coll London, Grantham Inst, London, England; 3.Univ Colorado, Dept Atmospher & Ocean Sci, Boulder, CO 80309 USA; 4.Univ Colorado, Inst Arctic & Alpine Res, Boulder, CO 80309 USA; 5.Natl Ctr Atmospher Res, Climate & Global Dynam Lab, POB 3000, Boulder, CO 80307 USA |
推荐引用方式 GB/T 7714 | Lester, J. G.,Lovenduski, N. S.,Graven, H. D.,et al. Internal Variability Dominates Over Externally Forced Ocean Circulation Changes Seen Through CFCs[J]. GEOPHYSICAL RESEARCH LETTERS,2020,47(9). |
APA | Lester, J. G.,Lovenduski, N. S.,Graven, H. D.,Long, M. C.,&Lindsay, K..(2020).Internal Variability Dominates Over Externally Forced Ocean Circulation Changes Seen Through CFCs.GEOPHYSICAL RESEARCH LETTERS,47(9). |
MLA | Lester, J. G.,et al."Internal Variability Dominates Over Externally Forced Ocean Circulation Changes Seen Through CFCs".GEOPHYSICAL RESEARCH LETTERS 47.9(2020). |
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