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PMA 1970s wave buoys
A dataset of multiple simultaneous wave buoy observations collected in the 1970s, primarily for the use of the local Port Authority, has recently been released, and is available for research purposes. The measurements were conducted in Port Philip Bay (PPB), situated in the Australian state of Victoria. PPB is a semi-enclosed embayment with a conti... morenuous deepwater (>10m) fetch of around 40-50km, where the extreme wind climate is primarily driven by eastward moving frontal systems.
The late 1960s and 1970s heralded the start of largescale offshore wave buoy deployments. For example, the JONSWAP experiment to measure spectral wave growth took place in the late 1960s and the New South Wales wave buoy network was installed in 1974 to monitor hazardous wave conditions. The data from these early field deployments are still relevant today given the significant expense in deploying buoys in remote conditions when compared to competing platforms (e.g. satellites) and inexpensive numerical modelling which can provide results at regional and global scales. less
Port Phillip Bay
The Port of Melbourne Authority undertook the data acquisition. Wind and Bulk spectral wave data were collected every 4 hours (in 10min bursts) by non-directional Datawell Waverider buoys for a 2.5 year period between Jul 1974 to March 1977. At any one time, up to three buoys were deployed. The campaign started with one buoy located at the northern part of the bay (Altona) and one at the southern part (Rosebud) for a period of one year. This was followed by three east bay locations (Rosebud, St Kilda and Aspendale) over spring of 1975. The final stage of the deployment compared a west bay buoy (St Leonards) to two east bay location (a combination of either Mount Martha, Mornington, Aspendale and/or Frankston).
Victorian Department of of Environment, Land, Water and Planning (DELWP)
Port of Melbourne Authority (now defunct)
Creative Commons Attribution-ShareAlike 4.0 International Licence
CSIRO (Australia), Department of Environment, Land, Water and Planning (DELWP) (Australia)
O'Grady, Julian; James, Darren; McInnes, Kathy; Trenham, Claire (2020): PMA 1970s wave buoys. v1. CSIRO. Data Collection.
All Rights (including copyright) Department of Environment, Land, Water and Planning (DELWP) 2020.
The metadata and files (if any) are available to the public.
DELWP PPB Coastal Hazard Assessment
Port Phillip Bay Coastal Hazards Assessment (PPBCHA) is a project to be delivered by the Victorian Department of Environment, Land, Water and Planning (DELWP) in partnership with the Association of Bayside Municipalities, the ten local governments around the Bay, the Municipal Association of Victoria, Parks Victoria and Melbourne Water.
The work... more includes:
• Gap Analysis
• Modelling and Hazard Assessment for the Bay
• Integration of Hazard Data into Decision Support Tools
The coastal hazards to be assessed include inundation, erosion and groundwater impacts, and will account for:
• typical tidal and storm surge variability (including consideration of inter-annual and inter-decadal sea-level variability for the region), insofar as available data allows, and extreme events
• the wave climate of Port Phillip Bay and its variability, incorporating swell and fetch modelling as appropriate, together with impact modelling for extreme events
• near-shore processes of wave set-up/run-up and overtopping
The dataset published here comprises observational wave data provided as part of this project. less
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