期刊
NATURE COMMUNICATIONS
卷 5, 期 -, 页码 -出版社
NATURE RESEARCH
DOI: 10.1038/ncomms4607
关键词
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资金
- Australian National Network in Marine Science
- Centre for Marine Futures at UWA Oceans Institute
- CSIRO Wealth from Oceans Flagship
- Australian Climate Change Science Programme (ACCSP)
- ARC [DP0986505]
- AIMS
- ARC LIEF [100100203]
- Indian Ocean Marine Research Centre UWA/AIMS/CSIRO
- UWA
- Western Australian Premiers Fellowship
- Div Atmospheric & Geospace Sciences
- Directorate For Geosciences [1305719] Funding Source: National Science Foundation
- Australian Research Council [DP0986505] Funding Source: Australian Research Council
Variability of the Leeuwin current (LC) off Western Australia is a footprint of interannual and decadal climate variations in the tropical Indo-Pacific. La Nina events often result in a strengthened LC, high coastal sea levels and unusually warm sea surface temperatures (SSTs), termed Ningaloo Nino. The rarity of such extreme events and the response of the southeastern Indian Ocean to regional and remote climate forcing are poorly understood owing to the lack of long-term records. Here we use well-replicated coral SST records from within the path of the LC, together with a reconstruction of the El Nino-Southern Oscillation to hindcast historical SST and LC strength from 1795 to 2010. We show that interannual and decadal variations in SST and LC strength characterized the past 215 years and that the most extreme sea level and SST anomalies occurred post 1980. These recent events were unprecedented in severity and are likely aided by accelerated global ocean warming and sea-level rise.
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