New Zealand Journal of Marine and Freshwater Research abstracts
Transports across the Tasman Sea from WOCE repeat sections:
the East Australian Current 1990-94
STEPHEN M. CHISWELL
New Zealand Oceanographic Institute
National Institute of Water and Atmospheric
Research
P. O. Box 14 901
Wellington, New Zealand
JOHN TOOLE
Woods Hole Oceanographic Institute
Woods Hole
MA, United States
JOHN CHURCH
Commonwealth Scientific and Industrial
Research Organisation
Division of Oceanography
Hobart, Australia
Abstract Between March 1990 and March 1994, six cruises were
made by Australian, New Zealand, and United States investigators in the Tasman
Sea, occupying World Ocean Circulation Experiment repeat hydrographic lines
PR11 (30deg.S) and PR13N (43deg.S). The northern section was occupied five
times, the southern section was occupied four times. All sections measured
temperature and salinity from the ocean surface to the bottom. Baroclinic
transports through these sections are highly variable, and confirm that there
is considerable eddy energy in the East Australian Current. The East Australian
Current, when defined to be the main southward flowing branch, has transports
varying from 22.2 to 42.2 Sv, although much of this is recirculated. As a
result the total transport into the Tasman Sea, between Australia and 173deg.E,
varies from 8.0 to 25.5 Sv. When plotted as a function of season, these
transports are well fit by annual-period sinusoids, suggesting that any
interannual variability is aliased by the annual cycle.
Keywords Tasman Sea; East Australian Current; volume
transport
New Zealand Journal of Marine and Freshwater Research, 1997, Vol. 31:
469-475
0028-8330/97/3104-0469 $7.00/0 (c) The Royal Society of New Zealand
1997
PDF file of entire paper: medium quality (473K); (scanned from paper original: notes about this process)
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