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

4 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

Fingerprint

Atlantic Ocean
upwelling water
annual cycle
upwelling
cycles
ocean
thermoclines
equatorial wave
ocean models
equatorial regions
tongue
sea surface temperature
ocean wave
thermocline
recharge
oceans

Keywords

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

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

Dynamics of upwelling annual cycle in the equatorial Atlantic Ocean. / Wang, Li Chiao; Jin, Fei Fei; Wu, Chau Ron; Hsu, Huang Hsiung.

In: Geophysical Research Letters, Vol. 44, No. 8, 28.04.2017, p. 3737-3743.

Research output: Contribution to journalArticle

Wang, Li Chiao ; Jin, Fei Fei ; Wu, Chau Ron ; Hsu, Huang Hsiung. / Dynamics of upwelling annual cycle in the equatorial Atlantic Ocean. In: Geophysical Research Letters. 2017 ; Vol. 44, No. 8. pp. 3737-3743.
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