Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1029/2020GL089183 |
Early‐Warning Signals for Marine Anoxic Events | |
Rick Hennekam; Bregje van der Bolt; Egbert H. van Nes; Gert J. de Lange; Marten Scheffer; Gert‐; Jan Reichart | |
2020-10-07 | |
发表期刊 | Geophysical Research Letters |
出版年 | 2020 |
英文摘要 | Predicting which marine systems are close to abrupt transitions into oxygen‐deficient conditions (“anoxia”) is notoriously hard but important – as rising temperatures and coastal eutrophication drive many marine systems towards such tipping points. Rapid oxic‐to‐anoxic transitions occurred regularly within the eastern Mediterranean Sea on (multi‐)centennial timescales and, hence, its sedimentary archive allows exploring statistical methods that can indicate approaching tipping points. The here presented high‐resolution reconstructions of past oxygen dynamics in the Mediterranean Sea reveal that early‐warning signals in these deoxygenation time series occurred long before fast transitions to anoxia. These statistical indicators (i.e. rise in autocorrelation and variance) are hallmarks of so‐called critical slowing down, signaling a steady loss of resilience of the oxygenated state as the system approaches a tipping point. Hence, even without precise knowledge of the mechanisms involved, early‐warning signals for widespread anoxia in marine systems are recognizable using an appropriate statistical approach. |
领域 | 气候变化 |
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/297953 |
专题 | 气候变化 |
推荐引用方式 GB/T 7714 | Rick Hennekam,Bregje van der Bolt,Egbert H. van Nes,等. Early‐Warning Signals for Marine Anoxic Events[J]. Geophysical Research Letters,2020. |
APA | Rick Hennekam.,Bregje van der Bolt.,Egbert H. van Nes.,Gert J. de Lange.,Marten Scheffer.,...&Jan Reichart.(2020).Early‐Warning Signals for Marine Anoxic Events.Geophysical Research Letters. |
MLA | Rick Hennekam,et al."Early‐Warning Signals for Marine Anoxic Events".Geophysical Research Letters (2020). |
条目包含的文件 | 条目无相关文件。 |
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