Origin of near-surface high-salinity water observed in the Kuroshio Extension region

Akira Nagano, Kazuyuki Uehara, Toshio Suga, Yoshimi Kawai, Hiroshi Ichikawa, Meghan F. Cronin

Research output: Contribution to journalArticlepeer-review

10 Citations (Scopus)

Abstract

Hydrographic data in the Kuroshio Extension (KE) region from 2008 to 2010 show large year-to-year variability in near-surface salinity, including a very large anomalous event in February 2010. During this event, the deep winter mixed layer in the southern KE region had higher salinity than had existed during the previous summer in September 2009. Our analysis shows that advection from the Philippine Sea along the western branch of the North Pacific subtropical gyre, taking approximately 9 months, resulted in this large salinity anomaly in February 2010 and contributes to the interannual salinity variability in the southern KE region.

Original languageEnglish
Pages (from-to)389-403
Number of pages15
JournalJournal of Oceanography
Volume70
Issue number4
DOIs
Publication statusPublished - 2014 Aug

Keywords

  • Argo float
  • JKEO
  • KEO
  • Kuroshio Extension
  • Salinity
  • Sea surface buoy

ASJC Scopus subject areas

  • Oceanography

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