Dynamics of upwelling annual cycle in the equatorial Atlantic Ocean

Li Chiao Wang, Fei Fei Jin, Chau Ron Wu, Huang Hsiung Hsu

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The annual upwelling is an important component of the equatorial Atlantic annual cycle. A simple theory is proposed using the framework of Zebiak-Cane (ZC) ocean model for insights into the dynamics of the upwelling annual cycle. It is demonstrated that in the Atlantic equatorial region this upwelling is dominated by Ekman processing in the west, whereas in the east it is primarily owing to shoaling and deepening of the thermocline resulting from equatorial mass meridional recharge/discharge and zonal redistribution processes associated with wind-driven equatorial ocean waves. This wind-driven wave upwelling plays an important role in the development of the annual cycle in the sea surface temperature of the cold tongue in the eastern equatorial Atlantic.

Original languageEnglish
Pages (from-to)3737-3743
Number of pages7
JournalGeophysical Research Letters
Volume44
Issue number8
DOIs
Publication statusPublished - 2017 Apr 28

Keywords

  • Ekman pumping
  • Zebiak-Cane model
  • annual cycle
  • equatorial upwelling
  • recharge oscillator

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Dynamics of upwelling annual cycle in the equatorial Atlantic Ocean'. Together they form a unique fingerprint.

  • Cite this