scholarly journals Fluctuation of the South Pacific Albacore Stocks (Thynnus alalunga) Relative to the Sea Surface Temperature

1999 ◽  
Vol 10 (2) ◽  
pp. 341
Author(s):  
Chien-Hsiung Wang
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
South Pacific ◽  
Sea Surface ◽  
The South

scholarly journals Observed modes of sea surface temperature variability in the South Pacific region

2017 ◽  
Vol 50 (3-4) ◽  
pp. 1129-1143 ◽  
Author(s):  
Ramiro I. Saurral ◽  
Francisco J. Doblas-Reyes ◽  
Javier García-Serrano
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
South Pacific ◽  
Temperature Variability ◽  
Sea Surface ◽  
Pacific Region ◽  
The South

Multidecadal Change of the South Pacific Gyre Circulation

2016 ◽  
Vol 46 (6) ◽  
pp. 1871-1883 ◽  
Author(s):  
Dean Roemmich ◽  
John Gilson ◽  
Philip Sutton ◽  
Nathalie Zilberman
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Ocean Circulation ◽  
South Pacific ◽  
Sea Surface Height ◽  
Sea Surface ◽  
Global Ocean ◽  
Depth Range ◽  
The South ◽  
South Pacific Gyre

AbstractMultidecadal trends in ocean heat and freshwater content are well documented, but much less evidence exists of long-term changes in ocean circulation. Previously, a 12-yr increase, 1993 to 2004, in the circulation of the South Pacific Subtropical Gyre interior was described. That analysis was based on differences between early Argo and 1990s hydrographic data and changes in sea surface height. Here, it is shown that the trend of increasing circulation continues through 2014, with some differences within the Argo decade (2005 to 2014). Patterns that indicate or are consistent with increasing equatorward transport in the eastern portion of the South Pacific Gyre are seen in Argo temperature and steric height, Argo trajectory velocity, altimetric sea surface height, sea surface temperature, sea level pressure, and wind stress. Between 2005 and 2014 the geostrophic circulation across 35°S, from 160°W to South America, was enhanced by 5 Sv (1 Sv ≡ 106 m3 s−1) of added northward flow. This was countered by a southward transport anomaly between the date line and 160°W. Corresponding temperature trends span the full 2000-m depth range of Argo observations. The 22-yr trend, 1993 to 2014, in sea surface height at 35°S, 160°W is 8 cm decade−1. Trends in sea surface temperature over 34 yr, 1981 to 2014, show a similar spatial pattern to that of sea surface height, with an increase of 0.5°C decade−1 at 35°S, 160°W. These multidecadal trends support the interpretation of the 40°S maximum in global ocean heat gain as resulting from anomalous wind forcing and Ekman convergence.

scholarly journals Evaluation of the South Pacific Convergence Zone in IPCC AR4 Climate Model Simulations of the Twentieth Century

2011 ◽  
Vol 24 (6) ◽  
pp. 1565-1582 ◽  
Author(s):  
Josephine R. Brown ◽  
Scott B. Power ◽  
Francois P. Delage ◽  
Robert A. Colman ◽  
Aurel F. Moise ◽  
...  
Keyword(s):  
Twentieth Century ◽  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Interannual Variability ◽  
South Pacific ◽  
Sea Surface ◽  
South Pacific Convergence Zone ◽  
Convergence Zone ◽  
The South ◽  
Model Simulations

Abstract Understanding how the South Pacific convergence zone (SPCZ) may change in the future requires the use of global coupled atmosphere–ocean models. It is therefore important to evaluate the ability of such models to realistically simulate the SPCZ. The simulation of the SPCZ in 24 coupled model simulations of the twentieth century is examined. The models and simulations are those used for the Fourth Assessment Report (AR4) of the Intergovernmental Panel on Climate Change (IPCC). The seasonal climatology and interannual variability of the SPCZ is evaluated using observed and model precipitation. Twenty models simulate a distinct SPCZ, while four models merge intertropical convergence zone and SPCZ precipitation. The majority of models simulate an SPCZ with an overly zonal orientation, rather than extending in a diagonal band into the southeast Pacific as observed. Two-thirds of models capture the observed meridional displacement of the SPCZ during El Niño and La Niña events. The four models that use ocean heat flux adjustments simulate a better tropical SPCZ pattern because of a better representation of the Pacific sea surface temperature pattern and absence of cold sea surface temperature biases on the equator. However, the flux-adjusted models do not show greater skill in simulating the interannual variability of the SPCZ. While a small subset of models does not adequately reproduce the climatology or variability of the SPCZ, the majority of models are able to capture the main features of SPCZ climatology and variability, and they can therefore be used with some confidence for future climate projections.

scholarly journals Are Sea Surface Temperature satellite measurements reliable proxies of lagoon temperature in the South Pacific?

2017 ◽  
Vol 199 ◽  
pp. 117-124 ◽  
Author(s):  
Simon Van Wynsberge ◽  
Christophe Menkes ◽  
Romain Le Gendre ◽  
Teuru Passfield ◽  
Serge Andréfouët
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
South Pacific ◽  
Sea Surface ◽  
The South ◽  
Satellite Measurements

scholarly journals Impact of projected sea surface temperature biases on tropical cyclones projections in the South Pacific

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
C. Dutheil ◽  
M. Lengaigne ◽  
M. Bador ◽  
J. Vialard ◽  
J. Lefèvre ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Tropical Cyclones ◽  
South Pacific ◽  
Sea Surface ◽  
The South

Relative contributions of North and South Pacific sea surface temperature anomalies to ENSO

2020 ◽  
Author(s):  
Ruiqiang Ding ◽  
Yu-heng Tseng ◽  
Jianping Li
Keyword(s):  
Surface Temperature ◽  
Sea Surface Temperature ◽  
Southern Oscillation ◽  
South Pacific ◽  
Sea Surface ◽  
Coupling Mechanism ◽  
The South ◽  
Enso Events ◽  
The North ◽  
Sst Forcing

<p>Variations in the sea surface temperature (SST) field in both the North Pacific [represented by the Victoria mode (VM)] and the South Pacific [represented by the South Pacific Quadrapole (SPQ) mode] are related to the state of the El Niño-Southern Oscillation (ENSO) three seasons later. Here, with the aid of observational data and numerical experiments, we demonstrate that both VM and SPQ SST forcing can influence the development of ENSO events through a similar air–sea coupling mechanism. By comparing ENSO amplitudes induced by the VM and SPQ, as well as the percentages of strong ENSO events followed by the VM and SPQ events, we find that the VM and SPQ make comparable contributions and therefore have similar levels of importance to ENSO. Additional analysis indicates that although VM or SPQ SST forcing alone may serve as a good predictor for ENSO events, it is more effective to consider their combined influence. A prediction model based on both VM and SPQ indices is developed, which is capable of yielding skillful forecasts for ENSO at lead times of three seasons.</p>

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