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                <gco:DateTime>2018-12-06T21:55:33</gco:DateTime>
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                        <gco:CharacterString>Merged Galilee model recharge estimates chloride mass balance v02</gco:CharacterString>
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                <gco:CharacterString>## **Abstract** 

This dataset was derived by the Bioregional Assessment Programme. The parent 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 merges the groundwater recharge estimate grids for each hydrogeological formation in the Galilee Basin (GUID: d42a8497-9d67-42ad-9e7d-70a8d519875f) into a single grid for input into the Galilee groundwater model.


A second groundwater recharge estimate has been produced which reduces the estimated rate for all formations. All values of the merged grid were halved, and areas which underlie unconsolidated clay and basalt surface geology features (GUID: 3c8e66e7-6a15-47ce-853b-bbe38435d28f) are given a recharge value of 0.125 mm/year for clay and 0.25 mm/year for basalt, unless the original cell value was less.

## **Purpose** 

This dataset provides a single input recharge estimate grid for the Galilee groundwater model.

## **Dataset History** 

All formation recharge estimate grids from the input recharge dataset were merged into a single raster layer using the raster calculator statement:

Con(IsNull("%a%"),Con(IsNull("%b%"),Con(IsNull("%c%"),Con(IsNull("%d%"),Con(IsNull("%e%"),Con(IsNull("%f%"),Con(IsNull("%g%"),Con(IsNull("%h%"),Con(IsNull("%i%"),"%j%","%i%"),"%h%"),"%g%"),"%f%"),"%e%"),"%d%"),"%c%"),"%b%"),"%a%"). Where a, b, c, d... are recharge estimates for individual formations.


Then, 'No data' gaps were filled in using the raster calculator statement: Con(IsNull("%MergeALL%"),Con(IsNull(BlockStatistics("%MergeALL%",NbrRectangle(2,2,"CELL"),"MAXIMUM")),(BlockStatistics("%MergeALL%",NbrRectangle(4,4,"CELL"),"MAXIMUM")),(BlockStatistics("%MergeALL%",NbrRectangle(2,2,"CELL"),"MAXIMUM"))),"%MergeALL%"). Where MergeALL is the output raster of the previous step.


To create the raster "Recharge_mergeAll_AlluviumCenozoicFeatures" the output of the previous step was multiplied by 0.5, then cells which were contained within the clay features shapefile were given a values of 0.125 and cells contained within the basalt features shapefile were given values of 0.25 (original cell values less than the new values were retained)

## **Dataset Citation** 

Bioregional Assessment Programme (2015) Merged Galilee model recharge estimates chloride mass balance v02. Bioregional Assessment Derived Dataset. Viewed 07 December 2018, http://data.bioregionalassessments.gov.au/dataset/b892b063-4df9-4199-80c8-2ed4a1077d5b.

## **Dataset Ancestors** 

* **Derived From** [Galilee model recharge estimates: chloride mass balance v02](https://data.gov.au/data/dataset/d42a8497-9d67-42ad-9e7d-70a8d519875f)

* **Derived From** [Australian 0.05Âº gridded chloride deposition v2](https://data.gov.au/data/dataset/c1649bd7-227f-41ff-9964-b55479bef640)

* **Derived From** [Galilee Recharge Cenozoic Alluvium Regions v01](https://data.gov.au/data/dataset/3c8e66e7-6a15-47ce-853b-bbe38435d28f)

* **Derived From** [GAL Aquifer Formation Extents v01](https://data.gov.au/data/dataset/e77f61d8-86d1-442a-a6ba-4256ae470595)

* **Derived From** [GAL Aquifer Formation Extents v02](https://data.gov.au/data/dataset/be0a97f2-ddfd-4d3a-9d6d-522bf34b559f)

* **Derived From** [Surface Geology of Australia, 1:1 000 000 scale, 2012 edition](https://data.gov.au/data/dataset/8284767e-b5b1-4d8b-b8e6-b334fa972611)

* **Derived From** [Natural Resource Management (NRM) Regions 2010](https://data.gov.au/data/dataset/1d54e38f-4051-4f0c-a350-c7dbd8eba65b)

* **Derived From** [Galilee Groundwater Model, hydrogeological formation recharge (Outcrop) extents v01](https://data.gov.au/data/dataset/b0f0385e-c456-4fa4-9cdb-a5441cca407b)

* **Derived From** [Galilee - Alluvium and Cenozoic 1M surface Geology](https://data.gov.au/data/dataset/552d5323-bb28-43e9-b137-8dd2d81f7d3c)

* **Derived From** [GEODATA TOPO 250K Series 3, File Geodatabase format (.gdb)](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)

* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)

* **Derived From** [NSW Catchment Management Authority Boundaries   20130917](https://data.gov.au/data/dataset/0dc4272e-c081-4ed4-9645-aa336ffacd85)

* **Derived From** [Geological Provinces - Full Extent](https://data.gov.au/data/dataset/0a064b3b-2a1e-4672-80d9-03333be67aad)

* **Derived From** [Phanerozoic OZ SEEBASE v2 GIS](https://data.gov.au/data/dataset/26e0fbd9-d8d0-4212-be52-ca317e27b3bd)

* **Derived From** [Galilee Hydrochemistry: Quality control for Chloride model recharge v02](https://data.gov.au/data/dataset/6b1a0358-40d6-4bcf-b864-28cb2c823fd1)

* **Derived From** [Bioregional Assessment areas v03](https://data.gov.au/data/dataset/96dbf469-5463-4f4d-8fad-4214c97e5aac)

* **Derived From** [QLD Geological Digital Data - QLD Geology, Structural Framework, November 2012](https://data.gov.au/data/dataset/a841bdfd-376c-4c7b-afd4-e92aba991f06)

* **Derived From** [Galilee Groundwater Model, Hydrogeological Formation Extents v01](https://data.gov.au/data/dataset/5afbf7f1-1ee0-444b-9f77-dbad8d8de95b)

* **Derived From** [Queensland petroleum exploration data - QPED](https://data.gov.au/data/dataset/cb357721-bf22-45c9-a82e-828807912dd4)

* **Derived From** [Three-dimensional visualisation of the Great Artesian Basin - GABWRA](https://data.gov.au/data/dataset/98e49f7c-28a6-4ad1-83c7-fdf606954fbc)

* **Derived From** [QLD Department of Natural Resources and Mines Groundwater Database Extract 20142808](https://data.gov.au/data/dataset/a5c5cbdb-1152-43f7-9533-a123027b7ce1)

* **Derived From** [Bioregional Assessment areas v01](https://data.gov.au/data/dataset/0fd0d820-30b3-451f-a126-a50040426999)

* **Derived From** [Bioregional Assessment areas v02](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)

* **Derived From** [Queensland Geological Digital Data - Detailed state extent, regional. November 2012](https://data.gov.au/data/dataset/03ea9d87-55f1-400e-86c0-b8f7492984c4)

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