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Average time between events when the Shields parameter exceeds 0.25

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Created 20/01/2025

Updated 20/01/2025

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This data represents the average time between events when the Shields parameter (Shields, 1936) exceeds 0.25 based on a Peaks-Over-Thresholds (POT) analysis. The Shields parameter (non-dimensional bed shear stress) value of 0.25 is assumed to be the threshold for creating disturbed patches. This value is several times larger than that required to initiate traction bedload transport (~0.05) and falls in the middle of the ripple and dune bedform stability field. It represents conditions when the seabed is highly mobile and where patches of disturbed habitat are likely to be created. The unit for the dataset is day. Shields, A. 1936. Application of similarity principles and turbulence research to bed-load movement. Mitteilunger der Preussischen Versuchsanstalt f'ur Wasserbau und Schiffbau 26: 5-24

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Title Average time between events when the Shields parameter exceeds 0.25
Language eng
Licence notspecified
Landing Page https://devweb.dga.links.com.au/data/dataset/a3c965d4-b93b-4838-9bbc-40b9c976d42c
Contact Point
Geoscience Australia
clientservices@ga.gov.au
Reference Period 22/04/2018
Geospatial Coverage {"type": "Polygon", "coordinates": [[[110.0, -44.0], [156.0, -44.0], [156.0, -7.0], [110.0, -7.0], [110.0, -44.0]]]}
Data Portal data.gov.au

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This dataset was originally found on data.gov.au "Average time between events when the Shields parameter exceeds 0.25". Please visit the source to access the original metadata of the dataset:
https://devweb.dga.links.com.au/data/dataset/average-time-between-events-when-the-shields-parameter-exceeds-0-251

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