New Zealand Journal of Marine and Freshwater Research abstracts
Seiche modes of Wellington Harbour, New Zealand
EDWARD R. C. ABRAHAM
New Zealand Oceanographic Institute
National Institute of Water & Atmospheric
Research Ltd
P. O. Box 14-901, Kilbirnie
Wellington, New Zealand
Abstract Seiche currents were observed in Wellington Harbour,
New Zealand, with an Acoustic Doppler Current Profiler (ADCP). A 600 kHz
Broad-Band ADCP was deployed on the sea bed in Evans Bay in an upwards looking
configuration for 20 days. The measured seiche periods were 159, 26, 17.3, and
8.3 min and there was evidence for seiching at periods of 15.8 and 14.7 min.
These observations are in close agreement with the previous predictions of a
finite-difference numerical model. The seiching occurred during periods of wind
with speeds in excess of 10 m s-1. The seiches were found to be
barotropic.
Keywords seiches; standing waves; harbours; spectral
analysis; acoustic current meters; current profiles; Wellington; New Zealand
New Zealand Journal of Marine and Freshwater Research, 1997, Vol. 31:
191-200
0028-8330/97/3102-0191 $7.00/0 (c) The Royal Society of New Zealand
1997
PDF file of entire paper: medium quality (1625K); (scanned from paper original: notes about this process)
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