scholarly journals EXTENDING TRANSIT WINDOWS AND VESSEL DRAFTS IN PORT BOTANY USING A NEXT GENERATION, PHYSICS-BASED OPERATIONAL SYSTEM

2020 ◽  
pp. 4
Author(s):  
Simon Mortensen ◽  
Phillip Holliday
Keyword(s):  
Decision Support ◽  
Pacific Ocean ◽  
New South ◽  
New South Wales ◽  
Real Life ◽  
Channel Entrance ◽  
Operational System ◽  
Online System ◽  
South Wales ◽  
Technical Framework

Servicing the largest population centre in Australia, Port Botany is vital to the economic wellbeing of Sydney and New South Wales. The channel entrance is often subject to energetic Pacific Ocean swell, moderate tides and occasionally severe winds. In August 2019, the Port Authority of NSW (PANSW) adopted the NCOS ONLINE system to provide enhanced decision support for under keel clearance management of deep drafted vessels in Port Botany. The technical framework and real-life application of the physics-based operational system NCOS ONLINE is presented in this paper.Recorded Presentation from the vICCE (YouTube Link): https://youtu.be/uPvX_0DNjRo

Evidence of a geographical variation in Mesochaetopterus (Polychaeta: Chaetopteridae) from the Pacific Ocean

2005 ◽  
Vol 85 (6) ◽  
pp. 1409-1423 ◽  
Author(s):  
Michel R. Bhaud
Keyword(s):  
Pacific Ocean ◽  
New South ◽  
Solomon Islands ◽  
New South Wales ◽  
Morphological Variations ◽  
Geographical Variations ◽  
South Wales ◽  
The Pacific ◽  
The Pacific Ocean ◽  
Hard Structures

Specimens of Mesochaetopterus (Chaetopteridae) from seven geographical sources in the Pacific Ocean are compared on the basis of their hard structures: specialized chaetae, uncinal plates and tubes. There geographical variations are investigated both locally (New South Wales and the Solomon Islands) and over the whole Pacific Ocean from Australia (New South Wales) through the Solomon Islands to Galapagos and Hawaii. The most interesting result is the existence of intra-regional morphological variations with the hard structures differing on specimens sampled in two areas from New South Wales or in two areas from the Solomon Islands out of a total of three areas. These newly described morphologies imply that M. minutus, isolated in a first step from M. sagittarius and confined to the Pacific, is a pseudo-sibling species complex. Each element of this complex is morphologically distinguishable. Consequently the generally accepted role of the long-lived planktonic larvae characteristic of Mesochaetopterus, as a source of geographical homogeneity must be re-examined.

Baseline trace metal concentrations in New South Wales coastal waters

1998 ◽  
Vol 49 (3) ◽  
pp. 203 ◽  
Author(s):  
Simon C. Apte ◽  
Graeme E. Batley ◽  
Ronald Szymczak ◽  
Paul S. Rendell ◽  
Randall Lee ◽  
...  
Keyword(s):  
Pacific Ocean ◽  
Trace Metal ◽  
Surface Waters ◽  
Coastal Waters ◽  
New South ◽  
New South Wales ◽  
Metal Concentrations ◽  
South Wales ◽  
The Pacific ◽  
The Pacific Ocean

Concentrations of ten trace elements at five localities in New South Wales coastal waters were measured by ultratrace sampling and analysis. Mean concentrations of cadmium (2.4 ng L-1), copper (31 ng L-1), nickel (180 ng L-1), lead (9 ng L-1) and zinc (<22 ng L-1) are among the lowest reported in the Southern Hemisphere and are consistent with recent oceanographic data for the surface waters of the Pacific Ocean. Waters from the southernmost sampling locality (Eden) contained higher phosphate, silicate, cadmium and nickel, but lower chromium concentrations than waters from the other four localities, reflecting the inputs of water from the Tasman Sea in the south compared with the dominance of waters from the Coral Sea along the rest of the coast. Cadmium concentrations were positively correlated with both phosphate and silicate. Chromium and lead concentrations were also significantly correlated. It is likely that a major source of lead is atmospheric deposition. The trace metal concentrations were comparable to those in the surface waters of the Pacific Ocean, indicating that fluvial inputs or processes occurring in the coastal margin were of limited importance in determining trace metal concentrations.

scholarly journals A two-stage decision support tool for restoring tidal flows to flood mitigation drains affected by acid sulfate soil: case study of Broughton Creek floodplain, New South Wales, Australia

Soil Research ◽  
2004 ◽  
Vol 42 (6) ◽  
pp. 639 ◽  
Author(s):  
William Glamore ◽  
Buddhima Indraratna
Keyword(s):  
Water Quality ◽  
Decision Support ◽  
New South ◽  
New South Wales ◽  
Decision Support Tool ◽  
Flood Mitigation ◽  
Drainage Network ◽  
Drain Water ◽  
Support Tool ◽  
South Wales

A 2-stage flood estimation and water quality decision support tool (DST) was developed, calibrated, and applied to a field site in south-eastern New South Wales (NSW) to simulate tidal restoration in a flood mitigation drain affected by acid sulfate soils leachate. The first stage of the DST employs a digital terrain map, geographic information tools, and measured water levels to calculate drain water overtopping due to tidal variations. Simulations using the GIS technique at the study site indicated that the primary drainage network can safely contain full tidal flushing (0.91 m AHD or a 58% increase), whereas at the same level the secondary drainage network overtops along relict drainage channels. The second stage of the DST simulates the change in drain water quality using an ion-specific program code written within the open interface PHREEQC program. The results from the water quality model were calibrated against laboratory titration tests. Drain water pH was shown to increase above 6.0, and soluble aluminium and iron concentrations decreased by 73% and 56%, respectively. The extent of water quality change is directly related to the ionic strength of the intruding water and the ion-specific reaction kinetics of aluminium, iron, and sulfate.

Sign in / Sign up

Export Citation Format

Share Document