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AEM dmax exceedance probability v01


The dataset was derived by the Bioregional Assessment Programme from multiple source datasets. The source datasets are identified in the Lineage field in this metadata statement. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement.

Rasters of the probability of drawdown in the weathered zone exceeding 20cm for baseline, crdp and acrd conditions in the surface weathered and fractured rock layer . The 10,000 posterior parameter ensembles are evaluated for each receptor location using the tailor-made emulator for that particular maximum drawdown (dmax) or time to maximum drawdown (tmax) prediction. A limited set of 200 parameter combinations, randomly selected from the posterior parameter ensembles is evaluated with the original model to compute dmax and tmax at the output nodes.

This is described in product 2.6.2 Groundwater numerical modelling (Peeters et al. 2016).

Peeters L, Dawes W, Rachakonda P, Pagendam D, Singh R, Pickett T, Frery E, Marvanek S, and McVicar T (2016) Groundwater numerical modelling for the Gloucester subregion. Product 2.6.2 for the Gloucester subregion from the Northern Sydney Basin Bioregional Assessment. Department of the Environment, Bureau of Meteorology, CSIRO and Geoscience Australia, Australia.

Dataset History

This dataset contains gridded surfaces of the probability of drawdown exceeding 20cm for baseline, crdp and acrd conditions. Grids were interpolated using results from model cells. The interpolation is based on the exceedance probabilities calculated for the computational nodes based on the 200 randomly sampled parameter combinations of the posterior parameter distributions.

Dataset Citation

Bioregional Assessment Programme (XXXX) AEM dmax exceedance probability v01. Bioregional Assessment Derived Dataset. Viewed 11 July 2018, http://data.bioregionalassessments.gov.au/dataset/81bd21cb-ca48-443a-b47a-3fc578c80cee.

Dataset Ancestors

Data and Resources

This dataset has no data

Additional Info

Field Value
Title AEM dmax exceedance probability v01
Type Dataset
Language eng
Licence Restricted access. This dataset is not available for public distribution.
Data Status completed
Update Frequency notPlanned
Landing Page https://data.gov.au/data/dataset/cbc3ca96-6a8d-42f9-b707-9b54afbacaa5
Date Published 2018-07-10
Date Updated 2019-11-20
Contact Point
Bioregional Assessment Program
Temporal Coverage N/A - N/A
Geospatial Coverage POLYGON ((152.2 -32.7, 152.2 -31.83, 151.8 -31.83, 151.8 -32.7, 152.2 -32.7))
Jurisdiction Australia
Data Portal data.gov.au
Publisher/Agency Bioregional Assessment Program