A quasi-biennial oscillation in the equatorial Atlantic Ocean

L. Tseng, C. R. Mechoso

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A quasi-biennial oscillation with features characteristic of equatorial coupled modes is found in the equatorial Atlantic Ocean. The origins of the phenomenon are investigated by using a coupled atmosphere-ocean general circulation model, in which the fully coupled domain is restricted to the Tropical Atlantic (20°S-30°N). The simulations capture a similar oscillation regardless of whether sea surface temperatures prescribed outside the coupled domain correspond to the observed or the climatology (i.e., lack year-to-year variability). It is concluded that the equatorial Atlantic hosts a quasi-biennial oscillation generated by coupled atmosphere-ocean interactions internal to the basin with little influence from remote events, even from El Niño/Southern Oscillation.

Original languageEnglish
Pages (from-to)187-190
Number of pages4
JournalGeophysical Research Letters
Volume28
Issue number1
DOIs
Publication statusPublished - 2001 Jan 1

Fingerprint

quasi-biennial oscillation
Atlantic Ocean
oceans
atmospheres
Southern Oscillation
climatology
sea surface temperature
ocean
coupled modes
atmosphere
oscillations
general circulation model
oscillation
simulation
interactions
basin

ASJC Scopus subject areas

  • Geophysics
  • Earth and Planetary Sciences(all)

Cite this

A quasi-biennial oscillation in the equatorial Atlantic Ocean. / Tseng, L.; Mechoso, C. R.

In: Geophysical Research Letters, Vol. 28, No. 1, 01.01.2001, p. 187-190.

Research output: Contribution to journalArticle

@article{ca4ab3b374d64105a250bd0ffa8cd1cb,
title = "A quasi-biennial oscillation in the equatorial Atlantic Ocean",
abstract = "A quasi-biennial oscillation with features characteristic of equatorial coupled modes is found in the equatorial Atlantic Ocean. The origins of the phenomenon are investigated by using a coupled atmosphere-ocean general circulation model, in which the fully coupled domain is restricted to the Tropical Atlantic (20°S-30°N). The simulations capture a similar oscillation regardless of whether sea surface temperatures prescribed outside the coupled domain correspond to the observed or the climatology (i.e., lack year-to-year variability). It is concluded that the equatorial Atlantic hosts a quasi-biennial oscillation generated by coupled atmosphere-ocean interactions internal to the basin with little influence from remote events, even from El Ni{\~n}o/Southern Oscillation.",
author = "L. Tseng and Mechoso, {C. R.}",
year = "2001",
month = "1",
day = "1",
doi = "10.1029/1999GL011206",
language = "English",
volume = "28",
pages = "187--190",
journal = "Geophysical Research Letters",
issn = "0094-8276",
publisher = "American Geophysical Union",
number = "1",

}

TY - JOUR

T1 - A quasi-biennial oscillation in the equatorial Atlantic Ocean

AU - Tseng, L.

AU - Mechoso, C. R.

PY - 2001/1/1

Y1 - 2001/1/1

N2 - A quasi-biennial oscillation with features characteristic of equatorial coupled modes is found in the equatorial Atlantic Ocean. The origins of the phenomenon are investigated by using a coupled atmosphere-ocean general circulation model, in which the fully coupled domain is restricted to the Tropical Atlantic (20°S-30°N). The simulations capture a similar oscillation regardless of whether sea surface temperatures prescribed outside the coupled domain correspond to the observed or the climatology (i.e., lack year-to-year variability). It is concluded that the equatorial Atlantic hosts a quasi-biennial oscillation generated by coupled atmosphere-ocean interactions internal to the basin with little influence from remote events, even from El Niño/Southern Oscillation.

AB - A quasi-biennial oscillation with features characteristic of equatorial coupled modes is found in the equatorial Atlantic Ocean. The origins of the phenomenon are investigated by using a coupled atmosphere-ocean general circulation model, in which the fully coupled domain is restricted to the Tropical Atlantic (20°S-30°N). The simulations capture a similar oscillation regardless of whether sea surface temperatures prescribed outside the coupled domain correspond to the observed or the climatology (i.e., lack year-to-year variability). It is concluded that the equatorial Atlantic hosts a quasi-biennial oscillation generated by coupled atmosphere-ocean interactions internal to the basin with little influence from remote events, even from El Niño/Southern Oscillation.

UR - http://www.scopus.com/inward/record.url?scp=0034745213&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034745213&partnerID=8YFLogxK

U2 - 10.1029/1999GL011206

DO - 10.1029/1999GL011206

M3 - Article

AN - SCOPUS:0034745213

VL - 28

SP - 187

EP - 190

JO - Geophysical Research Letters

JF - Geophysical Research Letters

SN - 0094-8276

IS - 1

ER -