Geopotential Topographies and Associated Circulation in the Western South Pacific Ocean

1962 ◽  
Vol 13 (2) ◽  
pp. 89 ◽  
Author(s):  
K Wyrtki
Keyword(s):  
New Zealand ◽  
Pacific Ocean ◽  
Solomon Islands ◽  
South Pacific ◽  
South Pacific Ocean ◽  
Surface Circulation ◽  
Tasman Sea ◽  
Water Mass Analysis ◽  
Subsurface Layers ◽  
Induced Currents

Geopotential topographies of the surface and several subsurface depths are drawn from observations on three cruises of H.M.A.S. Gascoyne in the waters of the western South Pacific Ocean in 1960 and 1961. The associated circulation is discussed. Surface circulation is found to be in agreement with the topographies only in the major current branches, while wind-induced currents do not show in the topographies. The inflow into the region occurs from the east between 25� S. and the Solomon Islands. It is stronger in subsurface layers than at the surface. A comparison with five cruises made by the Institut Franpais d'Oceanie in Noumea into the region between Kew Caledonia and the Solomons shows a permanent inflow in layers between 100 and 700 m, while the geostrophic circulation at the surface is very variable. The outflow from the region is effected by a current in the Tasman Sea between 30� and 36� S. flowing east and leaving the region north of New Zealand. Between Tasmania and New Zealand an outflow to the south occurs, reaching to 1200 m depth. The East Australian Current continues as an eddy system as far south as Tasmania. The calculated current pattern agrees in all parts with the circulation as derived from water mass analysis.

scholarly journals Ocean Sensors Record Rare Triple Tsunami near New Zealand

Eos ◽  
2021 ◽  
Vol 102 ◽  
Author(s):  
Katherine Kornei
Keyword(s):  
New Zealand ◽  
Pacific Ocean ◽  
South Pacific ◽  
The South ◽  
South Pacific Ocean

A new suite of DART buoys in the South Pacific Ocean spotted waves set in motion by three tsunamigenic earthquakes that occurred within hours of one another.

Optical properties of ocean waters in the vicinity of the Chatham Rise, South Pacific Ocean

1998 ◽  
Vol 49 (1) ◽  
pp. 1 ◽  
Author(s):  
David Shooter ◽  
Robert J. Davies-Colley ◽  
John T. O. Kirk ◽  
Anne-Maree Schwarz
Keyword(s):  
Optical Properties ◽  
Chlorophyll Fluorescence ◽  
New Zealand ◽  
Pacific Ocean ◽  
Attenuation Coefficient ◽  
Coastal Waters ◽  
South Pacific ◽  
Spectral Irradiance ◽  
Convergence Zone ◽  
South Pacific Ocean

Apparent optical properties of the water at 21 ocean stations in the South Pacific, east of New Zealand in the vicinity of the Chatham Rise, have been studied. Spectral irradiance attenuation and reflectance, and PAR irradiance attenuation, were measured in Sub-tropical and Sub-antarctic water masses, in the Sub-tropical Convergence zone between them, and in coastal waters. The waters studied are considered to be predominantly Jerlov optical types II and III. Anomalous features at wavelengths above 590 nm in the spectra of reflectance and of the vertical attenuation coefficient for upward irradiance were attributed predominantly to Raman emission with a contribution from chlorophyll fluorescence at longer wavelengths.

Large-scale influence of the New Zealand seafloor topography on western boundary currents of the South Pacific Ocean.

1985 ◽  
Vol 36 (1) ◽  
pp. 1 ◽  
Author(s):  
RA Heath
Keyword(s):  
New Zealand ◽  
West Coast ◽  
East Coast ◽  
South Pacific ◽  
Surface Flow ◽  
Current Speed ◽  
Western Boundary ◽  
East Australian Current ◽  
South Pacific Ocean ◽  
Tasman Sea

The extensive New Zealand submarine platform lying approximately 1600 km east of Australia has a strong influence on the South Pacific circulation. Together with the Kermadec Ridge, it is the western boundary of the deep South Pacific Ocean with an associated deep western boundary current. Although New Zealand probably influences where the East Australian Current separates from the east Australian coast, at the latitude of northernmost New Zealand, the sloping seafloor on the New Zealand west coast does allow for a meridional flow there. However, the decrease in current speed with depth does decrease the influence of the bottom topography. The net result is that there is both an intensification of the zonal flow across the Tasman Sea at the latitude of northernmost New Zealand, the speed of which is enhanced by the flow over the extensive ridge system, and a general eastwards flow in the Tasman Sea over the latitudinal range of New Zealand, which feeds meridional flows on the New Zealand west coast. It is suggested that the general west to east flow past New Zealand restricts the westward propagation of second- and higher-order baroclinic Rossby waves with the result that, whereas the East Australian Current has rapid near-surface flow which decreases rapidly with depth in the upper 500 m, the surface flow on the east coast of New Zealand is less rapid and decreases more uniformly with depth. One possible consequence of the current speed change with depth is that the flow and eddies on the New Zealand east coast appear to be influenced by the bathymetry whereas the East Australian Current eddies are more a primary component of the current linked to instability in the current system.

scholarly journals Production of viruses during a spring phytoplankton bloom in the South Pacific Ocean near of New Zealand

2011 ◽  
Vol 79 (3) ◽  
pp. 709-719 ◽  
Author(s):  
Audrey R. Matteson ◽  
Star N. Loar ◽  
Stuart Pickmere ◽  
Jennifer M. DeBruyn ◽  
Michael J. Ellwood ◽  
...  
Keyword(s):  
New Zealand ◽  
Pacific Ocean ◽  
Phytoplankton Bloom ◽  
South Pacific ◽  
The South ◽  
Spring Phytoplankton Bloom ◽  
South Pacific Ocean

scholarly journals Ko Kupe Te Tupuna

Te Kaharoa ◽  
2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Henare King
Keyword(s):  
New Zealand ◽  
Pacific Ocean ◽  
Indigenous Knowledge ◽  
South Pacific ◽  
The Other ◽  
Deep South ◽  
Far North ◽  
South Pacific Ocean ◽  
Aotearoa New Zealand

The book “The Tail of the Fish” was publised in 1968 and written by a Te Aupouri kuia, Matire Kereama (nee: Hoeft) of the far north of Aotearoa, New Zealand. I grew up with this book as my grandmother would read the stories to me at bedtime. Although my comprehension of each story was very vague and unrelatable to my life at that time, today, I find myself totally absorbed by the historical content and knowledge encapsulated in each chapter. I completed a Masters of Applied Indigenous Knowledge at Te Wananga o Aotearoa in 2017, entitled; Tales of the singing fish: He tangi wairua. I compsed twelve waiata (Maori songs) of which ten of the waiata was information extracted from ten chapters of the book. The other two waiata were composed specifically for my people of the Te Rarawa tribe, namely, Ahipara. The whakatauki “e kore e ngaro, he takere waka nui” (we will never be lost; we are the hull of a great canoe) demonstrates the amazing srength of the ancient sea voyager “Kupe” who discovered Aotearoa, New Zealand, in the deep South Pacific Ocean, Te Moana nui ā Kiwa.

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