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                <gco:DateTime>2016-03-23T00:59:21</gco:DateTime>
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                        <gco:CharacterString>Bioregional Assessment areas v05</gco:CharacterString>
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                <gco:CharacterString>## **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.


Approved boundaries of the bioregions and subregions (version 5) for defining the reporting regions for bioregional assessments of impacts of coal seam gas and coal mining development on water resources.


This is identical to Bioregional_Assessment_areas_v04 except that the attribute tables include areas (both sq. km and ha) based on the GDA 1994 Australia Albers projection. A spreadsheet version of the attribute table is also provided for the benefit of non ArcGIS users.

## **Purpose** 

Provides authoritative boundaries for defining bioregions and subregions to be reported on for the Bioregional Assessments and tabulation of Bioregion and subregion areas.

## **Dataset History** 

This dataset contains two spatial shapefiles: "ba_bioregion_alb_gda94_v05.shp" and "ba_subregion_alb_gda94_v05.shp".  

The shapefiles are copies of the previous versions (Bioregional Assessment Areas v04), with the following changes. 


Two fields have been added to each of the shapefiles' attribute tables. 

"albers_km2" and "albers_ha" which list the the bioregion/subregion areas in square kilometres and hectares respectively.


The polygonal areas are calculated in ArcGIS and are based on the GDA_1994_Australia_Albers projection. Parameters as follows:


Projected Coordinate System:    GDA_1994_Australia_Albers

Projection:    Albers

False_Easting:    0.00000000

False_Northing:    0.00000000

Central_Meridian:    132.00000000

Standard_Parallel_1:    -18.00000000

Standard_Parallel_2:    -36.00000000

Latitude_Of_Origin:    0.00000000

Linear Unit:     Meter


Geographic Coordinate System:    GCS_GDA_1994

Datum:     D_GDA_1994

Prime Meridian:     Greenwich

Angular Unit:     Degree


It should be noted that area calculations using a different projection (eg UTM or MGA) may yield slightly different areas to those published in this dataset.


Version 5 of this dataset also includes Excel spreadsheet versions of each shapefiles' attrubute table, to enable non ArcGIS users to access the bioregion/subregion area information.

## **Dataset Citation** 

Bioregional Assessment Programme (2014) Bioregional Assessment areas v05. Bioregional Assessment Derived Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/25f89049-839d-4736-bd81-97d8e8a40f8e.

## **Dataset Ancestors** 

* **Derived From** [Gippsland Project boundary](https://data.gov.au/data/dataset/27413de5-d13a-4231-ac79-fc77f4cbb5f7)

* **Derived From** [Bioregional Assessment areas v04](https://data.gov.au/data/dataset/e8a2d577-c5c5-4e2c-b0fa-53e4b2d4a034)

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

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

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

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

* **Derived From** [Victoria - Seamless Geology 2014](https://data.gov.au/data/dataset/2872d02e-66cb-42b6-9e5a-63abc8ad871b)

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

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

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                        <gco:CharacterString>Australia</gco:CharacterString>
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