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Origin of hotspots in the South Pacific: Recent advances in seismological and geochemical models
otspot South Pacific seismic tomography geochemical heterogeneities HIMU thermochemical superplume
2017/4/11
In this study, we review recent seismological and geochemical studies of the hotspots in the South Pacific superswell.
Extensive studies on global-scale seismic tomography have revealed the presence ...
Anammox and denitrification in the oxygen minimum zone of the eastern South Pacific
Anammox and denitrification oxygen minimum zone eastern South Pacific
2014/4/4
We quantified the removal of fixed nitrogen as N2 production by anammox and N2 and N2O production by denitrification over a distance of 1900 km along the coasts of Chile and Peru, using short-term inc...
Anammox and denitrification in the oxygen minimum zone of the eastern South Pacific
Anammox denitrification the oxygen minimum zone the eastern South Pacific
2014/4/3
We quantified the removal of fixed nitrogen as N2production by anammox and N2and N2O production by denitrification over a distance of 1900 km along the coasts of Chile and Peru, using short-term incub...
Characterization of alkaline phosphatase activity in the North and South Pacific Subtropical Gyres: Implications for phosphorus cycling
alkaline phosphatase activity iin the North South Pacific Subtropical Gyres:phosphorus cycling
2014/4/8
We characterized alkaline phosphatase (AP) activity (APA) and report AP kinetic parameters in the North and South Pacific Subtropical Gyres (NPSG and SPSG, respectively) to evaluate the relative impor...
Oxygen penetration deep into the sediment of the South Pacific gyre
Oxygen penetration sediment South Pacific gyre
2010/1/20
Sediment oxygen concentration profiles and benthic microbial oxygen consumption rates were investigated during an IODP site survey in the South Pacific Gyre. Primary production, particle fluxes and se...
Denitrification and nitrous oxide cycling within the upper oxycline of the eastern tropical South Pacific oxygen minimum zone
Denitrification nitrous oxide cycling
2014/4/17
One of the shallowest, most intense oxygen minimum zones (OMZs) is found in the eastern tropical South
Pacific, off northern Chile and southern Peru. It has a strong oxygen gradient (upper oxycline) ...
Open ocean DMS air/sea fluxes over the eastern South Pacific Ocean
Open ocean DMS air/sea eastern South Pacific Ocean
2009/3/12
Air/sea fluxes of dimethylsulfide (DMS) were measured by eddy correlation over the Eastern South Pacific Ocean during January 2006. The cruise track extended from Manzanillo, Mexico, along 110° W, to ...
Climatic Teleconnections in the Western South Pacific with El-Niño Phenomenon
Climatic Teleconnections El-Niñ o Phenomenon Western South Pacific
2009/2/19
In the western South Pacific, one year after a typical El Niño event, anomalous hydroclimatic conditions replace the usual ones. The abnormal meteorological conditions are characterized by the ...
Anthropogenic carbon distribution in the eastern South Pacific Ocean
Anthropogenic carbon distribution eastern South Pacific Ocean
2010/1/19
We present results of the CO2/carbonate system from the BIOSOPE cruise in the Eastern South Pacific Ocean, in an area not sampled previously. In particular, we present estimates of the anthropogenic c...
Mass, Heat, Salt and Nutrient Fluxes in the South Pacific Ocean
Mass Heat Salt Nutrient Fluxes South Pacific Ocean
2009/2/5
An inverse method has been applied to the Scorpio sections spanning the subtropical gyre of the South Pacific. In addition to constraints upon geostrophic fluxes of mass and salt, constraints were wri...
On the Wind-Driven Circulation of the South Pacific Ocean
Wind-Driven Circulation South Pacific Ocean
2009/1/7
A layered model of the study circulation in the South Pacific Ocean is constructed along the lines of Luyten, Pedlosky and Stommel, and driven by the mean annual wind stress distributions computed by ...
Observing the Fluctuations of Gyre-Scale Ocean Circulation：A Study of the Subtropical South Pacific
expendable bathythermograph Gyre-Scale Ocean Circulation Subtropical South Pacific
2008/12/30
Seasonal and interannual variability of the subtropical gyre in the South Pacific Ocean are investigated by means of a time series of expendable bathythermograph (XBT) sections between New Zealand (36...
The Subtropical Mode Waters of the South Pacific Ocean
subtropical mode waters South Pacific Ocean
2008/12/23
The subtropical mode waters (STMW) of the southwestern Pacific Ocean are described, including their physical characteristics, spatial distribution, and temporal variability. STMW is a thermostad, or m...
A Nonconservative β-Spiral Determination of the Deep Circulation in the Eastern South Pacific
Nonconservative β-Spiral Deep Circulation Eastern South Pacific
2008/12/19
The horizontal mean circulation and diapycnal flux divergence field in the South Pacific between Tahiti and the East Pacific Rise are obtained from a nonconservative β-spiral inverse method applied to...
The Southern Hemisphere Subtropical Front (STF) is a narrow zone of transition between upper-level sub-tropical waters to the north and subantarctic waters to the south. It is found near 40°S across t...