A local positive feedback of the tropical Pacific ocean-atmosphere system on interdecadal timescales

2006 ◽  
Vol 51 (5) ◽  
pp. 601-606 ◽  
Author(s):  
Chunhui Li ◽  
Dongxiao Wang ◽  
Jianyin Liang ◽  
Dejun Gu ◽  
Yun Liu
Keyword(s):  
Pacific Ocean ◽  
Positive Feedback ◽  
Tropical Pacific ◽  
Tropical Pacific Ocean ◽  
Atmosphere System ◽  
Ocean Atmosphere ◽  
The Tropical Pacific

scholarly journals Tropical Pacific Ocean Dynamical Response to Short-Term Sulfate Aerosol Forcing

2019 ◽  
Vol 32 (23) ◽  
pp. 8205-8221
Author(s):  
Tarun Verma ◽  
R. Saravanan ◽  
P. Chang ◽  
S. Mahajan
Keyword(s):  
Pacific Ocean ◽  
Tropical Pacific ◽  
Equatorial Pacific ◽  
Sulfate Aerosol ◽  
Upper Ocean ◽  
Sulfate Aerosols ◽  
Tropical Pacific Ocean ◽  
Aerosol Forcing ◽  
Ocean Atmosphere ◽  
The Tropical Pacific

Abstract The large-scale and long-term climate impacts of anthropogenic sulfate aerosols consist of Northern Hemisphere cooling and a southward shift of the tropical rain belt. On interannual time scales, however, the response to aerosols is localized with a sizable imprint on local ocean–atmosphere interaction. A large concentration of anthropogenic sulfates over Asia may impact ENSO by modifying processes and interactions that generate this coupled ocean–atmosphere variability. Here, we use climate model experiments with different degrees of ocean–atmosphere coupling to study the tropical Pacific response to an abrupt increase in anthropogenic sulfates. These include an atmospheric general circulation model (GCM) coupled to either a full-ocean GCM or a slab-ocean model, or simply forced by climatology of sea surface temperature. Comparing the responses helps differentiate between the fast atmospheric and slow ocean-mediated responses, and highlights the role of ocean–atmosphere coupling in the latter. We demonstrate the link between the Walker circulation and the equatorial Pacific upper-ocean dynamics in response to increased sulfate aerosols. The local surface cooling due to sulfate aerosols emitted over the Asian continent drives atmospheric subsidence over the equatorial west Pacific. The associated anomalous circulation imparts westerly momentum to the underlying Pacific Ocean, leading to an El Niño–like upper-ocean response and a transient warming of the east equatorial Pacific Ocean. The oceanic adjustment eventually contributes to its decay, giving rise to a damped oscillation of the tropical Pacific Ocean in response to abrupt anthropogenic sulfate aerosol forcing.

scholarly journals The Equatorial Thermocline Outcropping—A Seasonal Control on the Tropical Pacific Ocean–Atmosphere Instability Strength

2002 ◽  
Vol 15 (19) ◽  
pp. 2721-2739 ◽  
Author(s):  
Eli Galanti ◽  
Eli Tziperman ◽  
Matthew Harrison ◽  
Antony Rosati ◽  
Ralf Giering ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Tropical Pacific ◽  
Tropical Pacific Ocean ◽  
Equatorial Thermocline ◽  
Ocean Atmosphere ◽  
The Tropical Pacific

Thorium-derived dust fluxes to the tropical Pacific Ocean, 58Ma

2012 ◽  
Vol 87 ◽  
pp. 194-209 ◽  
Author(s):  
Stella C. Woodard ◽  
Deborah J. Thomas ◽  
Franco Marcantonio
Keyword(s):  
Pacific Ocean ◽  
Tropical Pacific ◽  
Tropical Pacific Ocean ◽  
The Tropical Pacific

scholarly journals Eddy-mean flow decomposition and eddy-diffusivity estimates in the tropical Pacific Ocean: 1. Methodology

1998 ◽  
Vol 103 (C13) ◽  
pp. 30855-30871 ◽  
Author(s):  
Sonia Bauer ◽  
Mark S. Swenson ◽  
Annalisa Griffa ◽  
Arthur J. Mariano ◽  
Ken Owens
Keyword(s):  
Pacific Ocean ◽  
Eddy Diffusivity ◽  
Tropical Pacific ◽  
Tropical Pacific Ocean ◽  
Mean Flow ◽  
The Tropical Pacific ◽  
Flow Decomposition

Isolation of sea surface salinity maps on various timescales in the tropical Pacific Ocean

2012 ◽  
Vol 68 (5) ◽  
pp. 687-701 ◽  
Author(s):  
Jian Chen ◽  
Ren Zhang ◽  
Huizan Wang ◽  
Yuzhu An ◽  
Peng Peng ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Tropical Pacific ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
Tropical Pacific Ocean ◽  
Surface Salinity ◽  
The Tropical Pacific

The Tropical Pacific Ocean--Back in the Driver's Seat?

Science ◽  
2014 ◽  
Vol 343 (6174) ◽  
pp. 976-978 ◽  
Author(s):  
A. Clement ◽  
P. DiNezio
Keyword(s):  
Pacific Ocean ◽  
Tropical Pacific ◽  
Tropical Pacific Ocean ◽  
The Tropical Pacific
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