Galilee Drawdown Rasters

Abstract

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.

This dataset contains rasters of the 5th, 50th and 95th percentile of drawdown in the model layers as well as grids of the probability of exceeding 0.2, 2 and 5 m drawdown as estimated with the GAL AEM model. The original rasters have been modified slightly so as to produce maps. These maps are an essential part of the visualisation of groundwater model results in Peeters et al. 2017). The process involved in creating these is described in the history.

Peeters L, Ransley T, Turnadge C, Kellett J, Harris-Pascal C, Kilgour P and Evans T (2016) Groundwater numerical modelling for the Galilee subregion. Product 2.6.2 for the Galilee subregion from the Lake Eyre Basin Bioregional Assessment. Department of the Environment, Bureau of Meteorology, CSIRO and Geoscience Australia, Australia.

Dataset History

The Galilee drawndown rasters were derived from GAL_quantile_interpolation_v2 (c7c4f7d0-ed25-475b-abcc-de7a1cbca3c3) using the ArcGIS platform for the purposes of creating maps.

The rasters were created by converting the original ascii grids to tiffs and then clipping the tiffs to the appropriate extents.

Both the Clematis and BCB rasters were clipped using datasets from the GAL_Model_Aquifer_Extents (5afbf7f1-1ee0-444b-9f77-dbad8d8de95b). The Clematis rasters were clipped using Clematis_warang_top_extent and the BCB rasters were clipped using Bandanna_top_extent.

Dataset Citation

Bioregional Assessment Programme (2016) Galilee Drawdown Rasters. Bioregional Assessment Derived Dataset. Viewed 12 December 2018, http://data.bioregionalassessments.gov.au/dataset/fa841a4b-810a-4768-950c-b6e35532cb4c.

Dataset Ancestors

• Derived From Surface Geology of Australia, 1:2 500 000 scale, 2012 edition

• Derived From Queensland Geological Digital Data - Detailed state extent, regional. November 2012

• Derived From Galilee model HRV receptors gdb

• Derived From Queensland petroleum exploration data - QPED

• Derived From Galilee groundwater numerical modelling AEM models

• Derived From Galilee drawdown grids

• Derived From Three-dimensional visualisation of the Great Artesian Basin - GABWRA

• Derived From QLD Department of Natural Resources and Mines Groundwater Database Extract 20142808

• Derived From Galilee Hydrological Response Variable (HRV) model

• Derived From Geoscience Australia GEODATA TOPO series - 1:1 Million to 1:10 Million scale

• Derived From Galilee Groundwater Model, Hydrogeological Formation Extents v01

• Derived From GAL Aquifer Formation Extents v01

• Derived From GAL Aquifer Formation Extents v02

• Derived From Phanerozoic OZ SEEBASE v2 GIS