CHARACTERISING COASTAL SHELF WAVES ALONG THE NSW COAST

Coastal Engineering Proceedings ◽

10.9753/icce.v36v.waves.37 ◽

2020 ◽

pp. 37

Author(s):

Cristina Viola ◽

Danielle Verdon-Kidd ◽

Hannah Power

Keyword(s):

Wind Stress ◽

Tide Gauge ◽

New South ◽

Spatiotemporal Variability ◽

Ocean Tide ◽

Coastal Inundation ◽

South Wales ◽

Coastal Shelf ◽

Shelf Waves ◽

Great Australian Bight

New South Wales (NSW) often experiences periods of coastal inundation and estuarine flooding. One of the causal mechanisms of these episodes are coastal shelf waves (CSW), generated by synoptic disturbances (Church et al., 2006). CSWs in Australia often result from wind stress, mostly along mid-latitudes (e.g., the Great Australian Bight) and propagate anticlockwise (Woodham et al., 2013). However, there are no tools available for identifying and characterising CSWs and as such there is very little information on the magnitude, frequency, duration, and spatiotemporal variability. This paper aims to: (1) develop a method to identify and track CSWs using the existing ocean tide gauge network, (2) identify patterns in the frequency, duration, and magnitude of CSW, and (3) assess the factors that affect the frequency, duration, and magnitude of CSWs along the NSW coast.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/oigzYIKFBmA

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Stock composition and movement of gemfish, Rexea solandri, as indicated by parasites

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f95-530 ◽

1995 ◽

Vol 52 (S1) ◽

pp. 225-232 ◽

Cited By ~ 12

Author(s):

Kim B. Sewell ◽

Robert J.G. Lester

Keyword(s):

Multivariate Analyses ◽

New South ◽

New South Wales ◽

South Australia ◽

Parasite Fauna ◽

Spawning Season ◽

South Wales ◽

Eastern Australia ◽

Great Australian Bight ◽

Anisakis Spp

The parasite fauna of gemfish, Rexea solandri, from seven areas off southern Australia, was examined for evidence of isolated gemfish populations. Canonical multivariate analyses of data on larval nematodes (Anisakis spp. and Terranova sp.), cestode plerocercoids (Hepatoxylon trichiuri and Nybelinia sp.), acanthocephalans (Rhadinorhynchus sp. and Corynosoma sp.), and a hemiuroid digenean from a total of 763 gemfish showed that the parasite faunas of fish from eastern Australia were similar except for a sample taken off New South Wales at the end of the spawning season whose affinities are unknown. Fish from South Australia had similar parasite faunas to those collected from eastern Australia, suggesting that fish from the eastern and western Bass Strait belong to the same stock. Fish collected from the Great Australian Bight were distinct from the southern and eastern fish. Differences in parasite fauna were detected between samples taken within the spawning season and those taken from the same locations outside the spawning season, presumably a result of the spawning migration.

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Wind stress in the Australian coastal experiment region

Marine and Freshwater Research ◽

10.1071/mf9870475 ◽

1987 ◽

Vol 38 (4) ◽

pp. 475 ◽

Cited By ~ 3

Author(s):

AMG Forbes

Keyword(s):

Wind Stress ◽

Wind Field ◽

Meteorological Parameters ◽

New South ◽

Sampling Frequency ◽

Level Gauge ◽

Entire Region ◽

Coastal Trapped Waves ◽

South Wales ◽

Phase Propagation

During the 6 months of the Australian Coastal Experiment (ACE), recordings were made by the Australian Bureau of Meteorology of several meteorological parameters at a number of coastal stations and by the CSIRO at several offshore locations to complement the ACE current-meter and sea-level gauge array. The aim was to examine the wind field over the New South Wales coast and so determine the magnitude of long shelf wind stress, which might locally force coastal trapped waves (CTW). Wind stress decreased equatorward, with the greatest potential for local CTW forcing lying on the southernmost continental shelf near Gabo Island. No significant variation in the magnitude of wind stress across the shelf within 20 km of the coast was observed. Despite the low sampling frequency at most coastai stations (twice daily, a subset of well-exposed coastal stations was sufficient to characterize the wind field over the entire region. The study revealed equatorward phase propagation of 9.2 and 12.1 m s-1 at periods of 4.4 and 10.5 days respectively.

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