scholarly journals Formation and variability of the South Pacific Sea Surface Salinity maximum in recent decades

2013 ◽  
Vol 118 (10) ◽  
pp. 5109-5116 ◽  
Author(s):  
Audrey Hasson ◽  
Thierry Delcroix ◽  
Jacqueline Boutin
Keyword(s):  
South Pacific ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
The South ◽  
Surface Salinity

scholarly journals Assimilation of SMOS Sea Surface Salinity in the Regional Ocean Model for South China Sea

2019 ◽  
Vol 11 (8) ◽  
pp. 919 ◽  
Author(s):  
Ziyao Mu ◽  
Weimin Zhang ◽  
Pinqiang Wang ◽  
Huizan Wang ◽  
Xiaofeng Yang
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
Observation Data ◽  
The South ◽  
Surface Salinity ◽  
China Sea ◽  
Ocean Salinity

Ocean salinity has an important impact on marine environment simulations. The Soil Moisture and Ocean Salinity (SMOS) mission is the first satellite in the world to provide large-scale global salinity observations of the oceans. Salinity remote sensing observations in the open ocean have been successfully applied in data assimilations, while SMOS salinity observations contain large errors in the coastal ocean (including the South China Sea (SCS)) and high latitudes and cannot be effectively applied in ocean data assimilations. In this paper, the SMOS salinity observation data are corrected with the Generalized Regression Neural Network (GRNN) in data assimilation preprocessing, which shows that after correction, the bias and root mean square error (RMSE) of the SMOS sea surface salinity (SSS) compared with the Argo observations can be reduced from 0.155 PSU and 0.415 PSU to −0.003 PSU and 0.112 PSU, respectively, in the South China Sea. The effect is equally significant in the northwestern Pacific region. The preprocessed salinity data were applied to an assimilation in a coastal region for the first time. The six groups of assimilation experiments set in the South China Sea showed that the assimilation of corrected SMOS SSS can effectively improve the upper ocean salinity simulation.

scholarly journals ENSO and interdecadal climate variability over the last century documented by geochemical records of two coral cores from the South West Pacific

2006 ◽  
Vol 6 ◽  
pp. 23-27 ◽  
Author(s):  
T. Ourbak ◽  
T. Corrège ◽  
B. Malaizé ◽  
F. Le Cornec ◽  
K. Charlier ◽  
...  
Keyword(s):  
Climate Variability ◽  
New Caledonia ◽  
Southern Oscillation ◽  
Low Frequency ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
The South ◽  
Surface Salinity ◽  
West Pacific ◽  
South West

Abstract. The south west Pacific is affected by climatic phenomena such as ENSO (El Niño Southern Oscillation) or the PDO (Pacific Decadal Oscillation). Near-monthly resolution calibrations of Sr/Ca, U/Ca and δ18Oc were made on corals taken from New Caledonia and Wallis Island. These geochemical variations could be linked to SST (sea surface temperature) and SSS (sea surface salinity) variations over the last two decades, itselves dependent on ENSO occurrences. On the other hand, near-half-yearly resolution over the last century smoothes seasonal and interannual climate signals, but emphasizes low frequency climate variability.

scholarly journals Resurfacing of South Pacific Tropical Water in the Equatorial Pacific and Its Variability Associated with ENSO

2017 ◽  
Vol 47 (5) ◽  
pp. 1095-1106 ◽  
Author(s):  
Tangdong Qu ◽  
Shan Gao
Keyword(s):  
Southern Oscillation ◽  
South Pacific ◽  
Equatorial Pacific ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
Freshwater Flux ◽  
Surface Salinity ◽  
Tropical Water ◽  
Analysis Of Results ◽  
South Pacific Tropical Water

AbstractAnalysis of results from a simulated passive tracer confirms the resurfacing of South Pacific Tropical Water in the equatorial Pacific. Over the period of integration (1993–2011), both the volume and barycenter of the South Pacific Tropical Water that resurfaces in the equatorial Pacific are tightly linked to El Niño–Southern Oscillation (ENSO), with their correlation with the Niño-3.4 index reaching −0.79 and 0.84, respectively. Their correlation (−0.75 and 0.85) with the sea surface salinity index, Niño-S34.8, is also high. Of particular interest is that both the volume and barycenter of the resurfacing South Pacific Tropical Water peak earlier than the ENSO indices by about 3 months. On the interannual time scale, the resurfacing of South Pacific Tropical Water may modulate the sea surface salinity in the equatorial Pacific at a rate equivalent to as much as 25% of the surface freshwater flux. The results suggest that the resurfacing of South Pacific Tropical Water directly contributes to the sea surface salinity variability in the equatorial Pacific and potentially plays a role in ENSO evolution.

Diatom-based reconstruction of summer sea-surface salinity in the South China Sea over the last 15 000 years

Boreas ◽  
2013 ◽  
Vol 43 (1) ◽  
pp. 208-219 ◽  
Author(s):  
Hui Jiang ◽  
Mads F. Knudsen ◽  
Marit-Solveig Seidenkrantz ◽  
Meixun Zhao ◽  
Longbin Sha ◽  
...  
Keyword(s):  
South China Sea ◽  
South China ◽  
The South China Sea ◽  
Sea Surface ◽  
Sea Surface Salinity ◽  
The South ◽  
Surface Salinity ◽  
China Sea
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