scholarly journals On the relative role of convection, chemistry, and transport over the South Pacific Convergence Zone during PEM-Tropics B: A case study

2002 ◽  
Vol 108 (D2) ◽  
Author(s):  
Céline Mari ◽  
Carine Saüt ◽  
Daniel J. Jacob ◽  
Amanda Staudt ◽  
Melody A. Avery ◽  
...  
Keyword(s):  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
Relative Role ◽  
The South

scholarly journals Sources of upper tropospheric HOxover the South Pacific Convergence Zone: A case study

2002 ◽  
Vol 108 (D2) ◽  
Author(s):  
Céline Mari ◽  
Carine Saüt ◽  
Daniel J. Jacob ◽  
François Ravetta ◽  
Bruce Anderson ◽  
...  
Keyword(s):  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
The South

Role of the South Pacific Convergence Zone in West Antarctic Decadal Climate Variability

2019 ◽  
Vol 46 (12) ◽  
pp. 6900-6909 ◽  
Author(s):  
Kyle R. Clem ◽  
Benjamin R. Lintner ◽  
Anthony J. Broccoli ◽  
James R. Miller
Keyword(s):  
Climate Variability ◽  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
Decadal Climate Variability ◽  
The South ◽  
West Antarctic ◽  
Decadal Climate

scholarly journals The South Pacific Convergence Zone in three decades of satellite images

2013 ◽  
Vol 118 (19) ◽  
pp. 10,839-10,849 ◽  
Author(s):  
Colene Haffke ◽  
Gudrun Magnusdottir
Keyword(s):  
Satellite Images ◽  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
The South

Impacts of Detoured Madden-Julian Oscillations on the South Pacific Convergence Zone

2021 ◽  
pp. 1-41
Author(s):  
Lei Zhou ◽  
Ruomei Ruan ◽  
Raghu Murtugudde
Keyword(s):  
Southern Hemisphere ◽  
Rossby Waves ◽  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Boreal Winter ◽  
Convergence Zone ◽  
The South ◽  
Maritime Continent ◽  
Meridional Winds ◽  
Southern Pacific Ocean

AbstractMadden-Julian Oscillations (MJOs) are a major component of tropical intraseasonal variabilities. There are two paths for MJOs across the Maritime Continent; one is a detoured route into the Southern Hemisphere and the other one is around the equator across the Maritime Continent. Here, it is shown that the detoured and non-detoured MJOs have significantly different impacts on the South Pacific convergence zone (SPCZ). The detoured MJOs trigger strong cross-equatorial meridional winds from the Northern Hemisphere into the Southern Hemisphere. The associated meridional moisture and energy transports due to the background states carried by the intraseasonal meridional winds are favorable for reinforcing the SPCZ. In contrast, the influences of non-detoured MJOs on either hemisphere or the meridional transports across the equator are much weaker. The detoured MJOs can extend their impacts to the surrounding regions by shedding Rossby waves. Due to different background vorticity during detoured MJOs in boreal winter, more ray paths of Rossby waves traverse the Maritime Continent connecting the southern Pacific Ocean and the eastern Indian Ocean, but far fewer Rossby wave paths traverse Australia. Further studies on such processes are expected to contribute to a better understanding of extreme climate and natural disasters on the rim of the southern Pacific and Indian Oceans.

Origin of the South Pacific Convergence Zone

1989 ◽  
Vol 2 (10) ◽  
pp. 1185-1195 ◽  
Author(s):  
George N. Kiladis ◽  
Hans von Storch ◽  
Harryvan Loon
Keyword(s):  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
The South

The role of air-sea coupling on the simulation of intraseasonal rainfall variability over the South Pacific in ECHAM5-SIT

2021 ◽  
Author(s):  
Sunil Kumar Pariyar ◽  
Noel Keenlyside ◽  
Wan-Ling Tseng
Keyword(s):  
General Circulation ◽  
Rainfall Variability ◽  
Intraseasonal Variability ◽  
Phase Relationship ◽  
Coupled Model ◽  
South Pacific ◽  
South Pacific Convergence Zone ◽  
The South ◽  
The Impact

<p><span>We investigate the impact of air-sea coupling on the simulation of the intraseasonal variability of rainfall over the South Pacific using the ECHAM5 atmospheric general circulation model coupled with Snow-Ice-Thermocline (SIT) ocean model. We compare the fully coupled simulation with two uncoupled simulations forced with sea surface temperature (SST) climatology and daily SST from the coupled model. The intraseasonal rainfall variability over the South Pacific Convergence Zone (SPCZ) is reduced by 17% in the uncoupled model forced with SST climatology and increased by 8% in the uncoupled simulation forced with daily SST. The coupled model best simulates the key characteristics of the two intraseasonal rainfall modes of variability in the South Pacific, as identified by an Empirical Orthogonal Function (EOF) analysis. The spatial structure of the two EOF modes in all three simulations is very similar, suggesting these modes are independent of air-sea coupling and primarily generated by the dynamics of the atmosphere. The southeastward propagation of rainfall anomalies associated with two leading rainfall modes in the South Pacific depends upon the eastward propagating </span><span>Madden-Julian Oscillation (</span><span>MJO</span><span>)</span><span> signals over the Indian Ocean and western Pacific. Air-sea interaction seems crucial for such propagation as both eastward and southeastward propagations substantially reduced in the uncoupled model forced with SST climatology. Prescribing daily SST from the coupled model improves the simulation of both eastward and southeastward propagations in the uncoupled model forced with daily SST, showing the role of SST variability on the propagation of the intraseasonal variability, but the periodicity differs from the coupled model. The change in the periodicity is attributed to a weaker SST-rainfall relationship that shifts from SST leading rainfall to a nearly in-phase relationship in the uncoupled model forced with daily SST.</span></p>

scholarly journals Extreme swings of the South Pacific Convergence Zone and the different types of El Niño events

2014 ◽  
Vol 41 (13) ◽  
pp. 4695-4703 ◽  
Author(s):  
Simon Borlace ◽  
Agus Santoso ◽  
Wenju Cai ◽  
Matt Collins
Keyword(s):  
El Niño ◽  
El Nino ◽  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
The South ◽  
Different Types ◽  
El Niño Events ◽  
El Nino Events

Tracking the extent of the South Pacific Convergence Zone since the early 1600s

2006 ◽  
Vol 7 (5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Braddock K. Linsley ◽  
Alexey Kaplan ◽  
Yves Gouriou ◽  
Jim Salinger ◽  
Peter B. deMenocal ◽  
...  
Keyword(s):  
South Pacific ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
The South
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