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Coupling Influences of ENSO and PDO on the Inter-Decadal SST Variability of the ACC around the Western South Atlantic

Author

Listed:
  • You-Lin Wang

    (Department of Earth Sciences, National Taiwan Normal University, Taipei 11677, Taiwan
    These authors equally important as the first author.)

  • Yu-Chen Hsu

    (Department of Marine Environment and Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan
    Taiwan Ocean Research Institute, National Applied Research Laboratories, Kaohsiung 80143, Taiwan
    These authors equally important as the first author.)

  • Chung-Pan Lee

    (Department of Marine Environment and Engineering, National Sun Yat-Sen University, Kaohsiung 80424, Taiwan)

  • Chau-Ron Wu

    (Department of Earth Sciences, National Taiwan Normal University, Taipei 11677, Taiwan)

Abstract

The Antarctic Circumpolar Current (ACC) plays an important role in the climate as it balances heat energy and water mass between the Pacific and Atlantic Oceans through the Drake Passage. However, because the historical measurements and observations are extremely limited, the decadal and long-term variations of the ACC around the western South Atlantic Ocean are rarely studied. By analyzing reconstructed sea surface temperatures (SSTs) in a 147-year period (1870–2016), previous studies have shown that SST anomalies (SSTAs) around the Antarctic Peninsula and South America had the same phase change as the El Niño Southern Oscillation (ENSO). This study further showed that changes in SSTAs in the regions mentioned above were enlarged when the Pacific Decadal Oscillation (PDO) and the ENSO were in the same warm or cold phase, implying that changes in the SST of higher latitude oceans could be enhanced when the influence of the ENSO is considered along with the PDO.

Suggested Citation

  • You-Lin Wang & Yu-Chen Hsu & Chung-Pan Lee & Chau-Ron Wu, 2019. "Coupling Influences of ENSO and PDO on the Inter-Decadal SST Variability of the ACC around the Western South Atlantic," Sustainability, MDPI, vol. 11(18), pages 1-11, September.
    • Handle: RePEc:gam:jsusta:v:11:y:2019:i:18:p:4853-:d:264439
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    References listed on IDEAS

    as
    1. Yu-Chen Hsu & Chung-Pan Lee & You-Lin Wang & Chau-Ron Wu & Hon-Kit Lui, 2018. "Leading El-Niño SST Oscillations around the Southern South American Continent," Sustainability, MDPI, vol. 10(6), pages 1-10, May.
    2. Kevin E. Trenberth & John T. Fasullo & Grant Branstator & Adam S. Phillips, 2014. "Seasonal aspects of the recent pause in surface warming," Nature Climate Change, Nature, vol. 4(10), pages 911-916, October.
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