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  • Water table elevation of the Great Artesian Basin. Data is available as contours (Shapefile) and elevation grids (ESRI grid and ESRI ASCII grid) Height is in metres above sea level (AHD). Cell resolution is 1000m. Contours and elevations were produced for the Great Artesian Basin Water Resource Assessment and used in watertable maps in: 1. Chapter 6 of Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. 2. Regional watertable section of Smerdon BD, Welsh WD and Ransley TR (eds) (2012) Water resource assessment for the Carpentaria region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia, plus Figure 10 in the associated summary report. 3. Regional watertable section of Smerdon BD and Ransley TR (eds) (2012) Water resource assessment for the Central Eromanga region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia, plus Figure 13 in the associated summary report. 4. Regional watertable section of Smerdon BD and Ransley TR (eds) (2012) Water resource assessment for the Surat region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia, plus Figure 14 in the associated summary report. 5. Regional watertable section of Smerdon BD, Welsh WD and Ransley TR (eds) (2012) Water resource assessment for the Western Eromanga region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia, plus Figure 12 in the associated summary report. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 75830. METHODS (continued from Lineage field): Contours were hand drawn from point water level data. Groundwater water levels along rivers with high EVI values were assumed to be 10m below ground. This information was used to interpret groundwater level contours where borehole water level data was absent. In areas of sparse data coverage the 3 second DEM was used to constrain contours below ground level. SA water levels were corrected for density effects due to salinity (in excess of 100,000 mg/L TDS in some bores in the Eyre Basin) but all others were uncorrected because salinity data were not available. Density corrections for the watertable are not deemed to be an issue outside of the SA portion of the GAB. Remote sensing studies of Enhanced Vegetation Index (EVI) were also used in the interpretation to provide water level information along certain rivers (refer to data set "Watercourses used to calculate riparian evapotranspiration loss from the GAB") where there were no boreholes. The hand drawn transparencies interpreted by Jim Kellet were scanned into a 2bit tiff file format. Scanned images were then rectified within ArcGIS and vectorised into linework using the ArcScan toolset to produce the polygon dataset Linework and were attributed with a contour value within the field "height", as well as a DESCRIPTION of the line TYPE in the field "descript". The grid surface was created using the Topo to Raster tool in the Spatial Analyst toolset from the values within the "height" field and clipped to the Revised Great Artesian Basin boundary and GEODATA TOPO 250K coastline. Note: data used to compile this map was a combination of the most recent available water level measurements (as at 2011), water level measurements at the time of drilling or the first water cut reported in drillers logs.

  • Thickness of Cenozoic sequence in the Karumba and Kalpowar basins overlying the GAB. Data is available as isopachs and raster. Isopachs are in Shapefile format. Rasters are in both ESRI grid and ASCII grid formats. This GIS data set was produced for the Great Artesian Basin Water Resource Assessment and used in: Figure 3.4 of Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. Figure 5.10 of Smerdon BD, Welsh WD and Ransley TR (eds) (2012) Water resource assessment for the Carpentaria region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 76535. SOURCE DATA (Continued from Lineage field) Perryman, J. C. (1964). Midwood Exploratory Proprietary Ltd., Completion report, Burketown No.1, A-P 91P, Queensland. Company Report 1480. Brisbane, Geological Survey of Queensland. Raymond, O.L. (2012) Surface Geology of Australia 1:1 million scale dataset 2012 edition. Geoscience Australia. Canberra. (available from http://www.ga.gov.au Catalogue number 74619) Smart J, Grimes KG, Doutch HF and Pinchin J (1980) The Carpentaria and Karumba Basins, north Queensland. Bulletin 202. Bureau of Mineral Resources, Geology and Geophysics, Australia. Williams, L. J. (1976). GSQ Ebagoola 1 - Preliminary lithologic and composite log. Record 1988/14. Brisbane, Queensland Department of Mines and Geological Survey of Queensland. Williams, L. J. and L. M. Gunther (1989). GSQ Dobbyn 1 - Preliminary lithologic and composite log. Record 1989/22. Brisbane, Geological Survey of Queensland.

  • Thickness of Cenozoic weathering in the Great Artesian Basin. Data is available as isopachs and raster. Isopachs are in Shapefile format. Rasters are in both ESRI grid and ASCII grid formats. This GIS data set was produced for the Great Artesian Basin Water Resource Assessment and used in Figure 3.3 of Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 76539.

  • Modelled groundwater levels from 2010 to 2070 used to estimate the impact of climate change and future groundwater resource development on groundwater levels in the GAB. The modelling considered different scenarios of climate and groundwater development: Scenario A (historical climate and current development); Scenario C (future climate and current development) and Scenario D (future climate and future development). The future climate scenarios included the wet extreme (wet), the median (mid) and the dry extreme (dry). The raster grids "Cdry.grd"", "Cmid.grd" and "Cwet.grd" show predicted hydraulic head for the year 2070 based on projections of future climate and the continuation of current rates of groundwater extraction The files "Cdry-Base.grd", "Cmid-Base.grd" and ""Cwet-Base.grd" represent predicted differences between the hydraulic heads produced by Scenario C at 2070, and the modelled spatial distributions of hydraulic head for the year 2010 (Base scenario). The files "Cdry-A.grd", "Cmid-A.grd" and "Cwet-A.grd" represent predicted differences between hydraulic heads for 2070 produced by Scenario C and the current climate and development scenario (Scenario A). 'No data' value is 1e30 Cell size is 5000m x 5000m This data and metadata were produced by CSIRO for the Great Artesian Basin Water Resource Assessment. For more information, please refer to Welsh WD, Moore CR, Turnadge CJ, Smith AJ and Barr TM (2012), "Modelling of climate and groundwater development. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment ". CSIRO Water for a Healthy Country Flagship, Australia. Projection is Albers equal area conic, with central meridian 143 degrees longitude, standard parallels at -21 and -29 degrees latitude and latitude of projection's origin at -25.

  • Modelled groundwater levels from 2010 to 2070 used to estimate the impact of climate change and future groundwater resource development on groundwater levels in the Cape York area of the GAB. The modelling considered different scenarios of climate and groundwater development: Scenario A (historical climate and current development); Scenario C (future climate and current development) and Scenario D (future climate and future development). The future climate scenarios included the wet extreme (wet), the median (mid) and the dry extreme (dry). This data set contains spatial data that were created from the outputs from climate change scenario models using on the Cape York groundwater flow model. The subfolder "heads" contains rasters of spatial distributions of hydraulic head for the year 2070 that were output based on projections of future climate and projections of future groundwater extraction (Scenario D). For each climate change scenario there are three outputs: one for each modelled aquifer thickness (100, 150 and 200 metres). The subfolder "differences" contains rasters of differences between the spatial distributions of hydraulic head that were output by future use scenario models and by either (a) the respective "A scenario" model or (b) the respective "Base scenario" model (the modelled hydraulic head for the year 2010). 'No data' value is 1e30 for heads rasters, -9999 for differences rasters Cell size is 5000m x 5000m For more information, please refer to Welsh WD, Moore CR, Turnadge CJ, Smith AJ and Barr TM (2012) "Modelling of climate and groundwater development. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment ". CSIRO Water for a Healthy Country Flagship, Australia. Projection is Albers equal area conic, with central meridian 143 degrees longitude, standard parallels at -21 and -29 degrees latitude and latitude of projection's origin at -25.

  • Thickness of the basal Jurassic-Cretaceous sandstone aquifers in the Carpentaria and Laura basins. Data is available as isopachs and raster. Isopachs are in Shapefile format. Rasters are in both ESRI grid and ASCII grid formats. This GIS data set was produced for the Great Artesian Basin Water Resource Assessment and used in: Figure 2.12 of Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. Figure 5.8 of Smerdon BD, Welsh WD and Ransley TR (eds) (2012) Water resource assessment for the Carpentaria region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 76536. SOURCE DATA (continued from lineage field due to space constraints) Harrison, J., W. J. Greer, et al. (1961). Completion report, Delhi-Santos Mornington Island Nos 1 and 2 wells. Company Report 696. Brisbane, Geological Survey of Queensland. Laing, A. C. M. (1958). Final report on AAO Number 8 (Karumba). Mines Administration PL, Brisbane. Company report 226. Brisbane, Geological Survey of Queensland. McConachie, B. A., J. N. Dunster, et al. (1989). Jackin Creek 1, Well completion report, A-P 373P, Carpentaria Basin, Queensland. Company Report 20580. Brisbane, Geological Survey of Queensland. McConachie BA, Dunster JN, Wellman P, Denaro TJ, Pain CF, Habermehl MA and Draper JJ 1997 - Chapter 9; Carpentaria lowlands and gulf of Carpentaria regions. In: Bain JHC and Draper JJ (eds.) North Queensland Geology. AGSO Bulletin 240. Queensland department of Mines and Energy Australia, 365-397. Meyers, N. A. (1969). Carpentaria Basin. GSQ Report 34. Queensland, Geological Survey of Queensland. Mines Administration Pty Ltd. (1962). Cabot-Blueberry Marina No. 1, Authority to Prospect 61P, Queensland. Well Completion report. Report Q/61P/112. Company report 976. Brisbane, Geological Survey of Queensland. Perryman, J. C. (1964). Midwood Exploratory Proprietary Ltd., Completion report, Burketown No.1, A-P 91P, Queensland. Company Report 1480. Brisbane, Geological Survey of Queensland. Smart J, Grimes KG, Doutch HF and Pinchin J (1980) The Carpentaria and Karumba Basins, north Queensland. Bulletin 202. Bureau of Mineral Resources, Geology and Geophysics, Australia. Williams, L. J. (1976). GSQ Ebagoola 1 - Preliminary lithologic and composite log. Record 1988/14. Brisbane, Queensland Department of Mines and Geological Survey of Queensland. Williams, L. J. and L. M. Gunther (1989). GSQ Dobbyn 1 - Preliminary lithologic and composite log. Record 1989/22. Brisbane, Geological Survey of Queensland.

  • Difference between 'pre-development' (1900-1920) and modern (2000-2010) groundwater levels at selected bore locations in the Great Artesian Basin This GIS data set was produced by CSIRO for the Great Artesian Basin Water Resource Assessment and used in Figure 7.5 of Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 76931. For further information contact Phil Davies, Research Projects Officer, CSIRO Land and Water, Waite Road, Urrbrae SA 5064

  • Thickness of Paleogene-Neogene sequence overlying the Great Artesian Basin Data is available as isopachs and raster. Isopachs are in Shapefile format. Rasters are in both ESRI grid and ASCII grid formats. This GIS data set was produced for the Great Artesian Basin Water Resource Assessment and used in: Figure 3.2 of Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. Figure 3.3 of Smerdon BD, Ransley TR, Radke BM and Kellett JR (2012) Water resource assessment for the Great Artesian Basin. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 76538. LINEAGE (Continued from Lineage field due to space constraints) METHOD: Data covering the areas of Upper Darling, Lower Namoi was supplied by the NSW government. Contours in the Macquarie region NSW were interpreted from the Cenozoic isopachs taken from Macaulay, S. & Kellett, J. (2009) Lower Balonne Deep Lead tertiary isopach contours captured from a National Action Plan for Salinity and Water Quality report (Chamberlain, T. & Wilkinson, K., 2004; Kellett et.al. 2004). Isopachs in the southern portion of the GAB were captured from the Cainozoic Structural Features page 22 of Palaeogeographic Atlas of Australia: Cainozoic (Langford & Wilford, 1995) Isopachs over the Poolowanna Trough and Cooper Basin region were taken from Tertiary Stratigraphy and Tectonics, Eromanga Basin (Moussavi-Harami, R. & Alexander, E., 1998) Isopachs in the central Eromanga Basin, Queensland came from Senior 1978. Position and boundary of the Condamine Basin from Klohn, Crippen & Berger, 2011 - feasibility of injecting CSG water into the central Condamine Alluvium - Summary. Report prepared for department of Environment and Resource Management, Queensland, 8p. Isopachs came from the Cainozoic Structural Features page 22 of Palaeogeographic Atlas of Australia: Cainozoic (Langford & Wilford, 1995) Drill-hole data sourced from PIRSA (2007) and GABLOG (Habermehl, 2001) databases, Gibson et al 1974, and well completion reports from GSQ (Queensland Department of Natural Resources and Mines, 2012). Data were used to interpolate a surface using the Topo to Raster tool in the ArcGIS Spatial analyst toolset and the resulting raster was clipped to the Great Artesian Basin Water Resource project boundary. Isopach contours were generated from the raster, using the Contour tool in the 3d analyst toolset in ArcGIS. METHOD

  • Interpreted groundwater flow divide in the Hutton Sandstone between the Surat and Clarence-Moreton basins in the Great Artesian Basin (to be used in conjunction with dataset 'Surat / Clarence-Moreton basins Hydrogeological Boundary' (GA 2013, Catalogue #75830) to define the easternmost boundary of the GAB) This data set provides an approximate location of the groundwater divide as a polygon in Shapefile format. This data set was used in: Figure 5.3 in Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. Figure 5.3 in Smerdon BD and Ransley TR (eds) (2012) Water resource assessment for the Surat region. A report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia Figure 14 in Smerdon BD, Marston FM and Ransley TR (2012) Water resource assessment for the Surat region. Summary of a report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. 16pp. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 77024.

  • Groundwater recharge estimates within the intake beds of the Cadna-owie - Hooray and equivalents aquifer and the Hutton Sandstone aquifer in the Great Artesian Basin. Recharge estimates are given in mm/year and are calculated using chloride mass balance method. Grid cell size (X, Y) = 0.015 DD, 0.015 DD. This GIS data set was produced for the Great Artesian Basin Water Resource Assessment and used in Figures 7.9 of Ransley TR and Smerdon BD (eds) (2012) Hydrostratigraphy, hydrogeology and system conceptualisation of the Great Artesian Basin. A technical report to the Australian Government from the CSIRO Great Artesian Basin Water Resource Assessment. CSIRO Water for a Healthy Country Flagship, Australia. This dataset and associated metadata can be obtained from www.ga.gov.au, using catalogue number 76932. For further information, contact: Phil Davies Research Projects Officer CSIRO Land and Water Waite Road Urrbrae SA 5064