Nomenclature of Water Masses in the Tasman Sea

1959 ◽  
Vol 10 (1) ◽  
pp. 1 ◽  
Author(s):  
DM Garner
Keyword(s):  
New Zealand ◽  
Water Masses ◽  
Oceanic Water ◽  
East Central ◽  
Coral Sea ◽  
Tasman Sea

In a recent paper by Rochford (1957) on the identification and nomenclature of water masses in the Tasman and Coral Seas, three oceanic water masses of importance to New Zealand hydrology have been described as "Coral Sea", "Sub-Antarctic", and "East Central New Zealand". Reasons are advanced here to suggest that the origins proposed for these water masses may require modification.

The Identification and Nomenclature of the Surface Water Masses in the Tasman Sea (Data to the End of 1954)

1957 ◽  
Vol 8 (4) ◽  
pp. 369 ◽  
Author(s):  
DJ Rochford
Keyword(s):  
Surface Water ◽  
Sea Water ◽  
Maximum Velocity ◽  
Water Masses ◽  
Late Winter ◽  
The South ◽  
Coral Sea ◽  
Tasman Sea ◽  
East And West ◽  
Western Side

In this paper an examination of all available data on the hydrological characteristics of the Tasman Sea, prior to and including the year 1954, has permitted the identification and naming of eight surface water masses. Certain of their properties and general features of their season and region of occurrence and method of formation are summarized. Although little quantitative data are available some general features of the circulation of these water masses in the Tasman Sea are deduced from a study of their seasonal occurrence in relation to source regions. The Coral Sea water mass (chlorinity 19.60-19.70‰, temperature 20-26� C) flows from a source region in the north-west Coral Sea along the western side of the Tasman Sea and reaches maximum velocity off Sydney in October-December. The South Equatorial (chlorinity 19.50-19.60‰, temperature 24-26� C) also flows south along the western side of the Tasman Sea but reaches maximum velocity between February and March. These two water masses constitute the East Australian current. The Sub-Antarctic (chlorinity 19.15-19.30‰, temperature 10-14°C) is found at the surface in the south-eastern Tasman Sea between July and September. The Central Tasman (chlorinity 19.65-19.75‰, temperature 15-20‰C) flows to the west from its region of formation and generally flows north along the southern New South Wales coast in late winter. The South-west Tasman (chlorinity 19.50- 19.60‰, temperature 12-15°C) flows to the east in latitude 38�S. and curves south in a clockwise gyral off eastern Tasmania between October and December. The Xorth Bass Strait (chlorinity 19.66-19.75‰ temperature 12-17�C) flows from South Australia to the eastern approaches of Bass Strait. The East Central New Zealand (chlorinity 19.10-19.30‰, temperature 15-20°C) flows west through Cook Strait into the Tasman Sea in midsummer. The East and West Tasmanian (chlorinity 19.40- 19.50‰ temperature 10-14°C) form in midwinter in the southern part of Bass Strait and flow along the east and west coasts in the spring.

Seismic Characterization of Oceanic Water Masses, Water Mass Boundaries, and Mesoscale Eddies SE of New Zealand

2018 ◽  
Vol 123 (2) ◽  
pp. 1519-1532 ◽  
Author(s):  
Andrew R. Gorman ◽  
Matthew W. Smillie ◽  
Joanna K. Cooper ◽  
M. Hamish Bowman ◽  
Ross Vennell ◽  
...  
Keyword(s):  
New Zealand ◽  
Water Mass ◽  
Mesoscale Eddies ◽  
Water Masses ◽  
Oceanic Water ◽  
Seismic Characterization

ATOC and Other Acoustic Thermometry Observations In New Zealand

1999 ◽  
Vol 33 (1) ◽  
pp. 55-60
Author(s):  
C.T. Tindle ◽  
G.E.J.
Keyword(s):  
New Zealand ◽  
Ocean Bottom ◽  
Underwater Sound ◽  
Floating Platform ◽  
Ocean Climate ◽  
Acoustic Thermometry ◽  
Tasman Sea ◽  
Heard Island ◽  
Large Fluctuations ◽  
Feasibility Test

A summary of participation of the New Zealand group in the ATOC (Acoustic Thermometry of Ocean Climate) program over a five year period is presented. Transmissions from Heard Island were observed in the Tasman Sea during the Heard Island Feasibility Test in 1991. The California-New Zealand underwater sound path was verified with explosive sources in 1992. Single hydrophone observations were made of transmissions to New Zealand from California from an electrically driven source first suspended beneath a floating platform in 1994 and later placed on the ocean bottom at Pioneer Seamount in 1995. Results from these experiments show that acoustic propagation to ranges of order 10 Mm appears to be characterised by large fluctuations occurring with a time scale of a few minutes.

scholarly journals The Role of the New Zealand Plateau in the Tasman Sea Circulation and Separation of the East Australian Current

2018 ◽  
Vol 123 (2) ◽  
pp. 1457-1470 ◽  
Author(s):  
Christopher Y. S. Bull ◽  
Andrew E. Kiss ◽  
Erik van Sebille ◽  
Nicolas C. Jourdain ◽  
Matthew H. England
Keyword(s):  
New Zealand ◽  
East Australian Current ◽  
Tasman Sea

Biogeochemical processes and labile composition of settling particulate organic matter in the south-west Pacific Ocean

2003 ◽  
Vol 54 (3) ◽  
pp. 259 ◽  
Author(s):  
Lallan Prasad Gupta ◽  
Hodaka Kawahata
Keyword(s):  
Organic Matter ◽  
Organic Carbon ◽  
Particulate Organic Matter ◽  
Deep Trap ◽  
Biogeochemical Processes ◽  
Shallow Trap ◽  
The South ◽  
Coral Sea ◽  
South West ◽  
Tasman Sea

Settling particles collected by sediment traps deployed for approximately 1 year in the Coral Sea and Tasman Sea were analysed to understand the biogeochemical processes controlling the cycling and flux of particulate organic matter (POM) in the south-west Pacific. Samples were analysed for 20 amino acids (AA) and two hexosamines (HA) and the data were interpreted together with already published data on opal (biogenic silica), organic carbon and total nitrogen contents. Mean fluxes of labile carbon and nitrogen at one site were significantly different (P < 0.04, t-test; n = 14–18) from those at other sites. The southernmost trap recorded the highest concentrations of AA, HA and organic carbon normalized AA. At a site in the south, POM was more degraded in the deep trap than in the shallow trap. Occasionally, higher fluxes were also recorded at the deep trap relative to the shallow trap. The C/Natomic ratio coupled with AA- and HA-based parameters clearly suggested contribution of POM through resuspension as well as lateral advection at the more southern site, whereas a strong influence of zooplankton on total mass flux was revealed at the northern site during the period August–September 1995. It is evident from the data that higher flux of particles having higher labile contents (AA and HA) is more prevalent in the Tasman Sea than in the Coral Sea.

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