An observational study on the latitudes where wave forcing drives Brewer-Dobson upwelling

Tiehan Zhou; Marvin A. Geller; Wuyin Lin

doi:10.1175/JAS-D-11-0197.1

An observational study on the latitudes where wave forcing drives Brewer-Dobson upwelling

Tiehan Zhou
, Marvin A. Geller
, Wuyin Lin

Columbia University
Brookhaven National Laboratory

Research output: Contribution to journal › Article › peer-review

20 Scopus citations

Abstract

The 40-yr ECMWF Re-Analysis (ERA-40) data are analyzed to demonstrate that wave forcing at lower latitudes plays a crucial role in driving the tropical upwelling portion of the Brewer-Dobson circulation. It is shown that subtropical wave forcing is correlated with tropical upwelling on both intraseasonal and interannual time scales when transient waves are taken into account, and that tropical wave forcing exerts its influence on tropical upwelling via its body force on the zonal mean flow.

Original language	English
Pages (from-to)	1916-1935
Number of pages	20
Journal	Journal of the Atmospheric Sciences
Volume	69
Issue number	6
DOIs	https://doi.org/10.1175/JAS-D-11-0197.1
State	Published - Jun 2012

Keywords

Dynamics
Eddies
Lagrangian circulation/transport
Mass fluxes/transportMeridional overturning circulation
Upwelling/downwelling

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10.1175/JAS-D-11-0197.1

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abstract = "The 40-yr ECMWF Re-Analysis (ERA-40) data are analyzed to demonstrate that wave forcing at lower latitudes plays a crucial role in driving the tropical upwelling portion of the Brewer-Dobson circulation. It is shown that subtropical wave forcing is correlated with tropical upwelling on both intraseasonal and interannual time scales when transient waves are taken into account, and that tropical wave forcing exerts its influence on tropical upwelling via its body force on the zonal mean flow.",

keywords = "Dynamics, Eddies, Lagrangian circulation/transport, Mass fluxes/transportMeridional overturning circulation, Upwelling/downwelling",

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AB - The 40-yr ECMWF Re-Analysis (ERA-40) data are analyzed to demonstrate that wave forcing at lower latitudes plays a crucial role in driving the tropical upwelling portion of the Brewer-Dobson circulation. It is shown that subtropical wave forcing is correlated with tropical upwelling on both intraseasonal and interannual time scales when transient waves are taken into account, and that tropical wave forcing exerts its influence on tropical upwelling via its body force on the zonal mean flow.

KW - Dynamics

KW - Eddies

KW - Lagrangian circulation/transport

KW - Mass fluxes/transportMeridional overturning circulation

KW - Upwelling/downwelling

UR - https://www.scopus.com/pages/publications/84864841469

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VL - 69

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JO - Journal of the Atmospheric Sciences

JF - Journal of the Atmospheric Sciences

IS - 6

ER -

An observational study on the latitudes where wave forcing drives Brewer-Dobson upwelling

Abstract

Keywords

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