Bioregional Assessment areas v05

## **Abstract** \n\nThe 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.\n\n\n\nApproved 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.\n\n\n\nThis 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.\n\n## **Purpose** \n\nProvides authoritative boundaries for defining bioregions and subregions to be reported on for the Bioregional Assessments and tabulation of Bioregion and subregion areas.\n\n## **Dataset History** \n\nThis dataset contains two spatial shapefiles: "ba_bioregion_alb_gda94_v05.shp" and "ba_subregion_alb_gda94_v05.shp". \n\nThe shapefiles are copies of the previous versions (Bioregional Assessment Areas v04), with the following changes. \n\n\n\nTwo fields have been added to each of the shapefiles' attribute tables. \n\n"albers_km2" and "albers_ha" which list the the bioregion/subregion areas in square kilometres and hectares respectively.\n\n\n\nThe polygonal areas are calculated in ArcGIS and are based on the GDA_1994_Australia_Albers projection. Parameters as follows:\n\n\n\nProjected Coordinate System:\tGDA_1994_Australia_Albers\n\nProjection:\tAlbers\n\nFalse_Easting:\t0.00000000\n\nFalse_Northing:\t0.00000000\n\nCentral_Meridian:\t132.00000000\n\nStandard_Parallel_1:\t-18.00000000\n\nStandard_Parallel_2:\t-36.00000000\n\nLatitude_Of_Origin:\t0.00000000\n\nLinear Unit: \tMeter\n\n\n\nGeographic Coordinate System:\tGCS_GDA_1994\n\nDatum: \tD_GDA_1994\n\nPrime Meridian: \tGreenwich\n\nAngular Unit: \tDegree\n\n\n\nIt 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.\n\n\n\nVersion 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.\n\n## **Dataset Citation** \n\nBioregional 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.\n\n## **Dataset Ancestors** \n\n* **Derived From** [Gippsland Project boundary](https://data.gov.au/data/dataset/27413de5-d13a-4231-ac79-fc77f4cbb5f7)\n\n* **Derived From** [Bioregional Assessment areas v04](https://data.gov.au/data/dataset/e8a2d577-c5c5-4e2c-b0fa-53e4b2d4a034)\n\n* **Derived From** [Natural Resource Management (NRM) Regions 2010](https://data.gov.au/data/dataset/1d54e38f-4051-4f0c-a350-c7dbd8eba65b)\n\n* **Derived From** [Bioregional Assessment areas v03](https://data.gov.au/data/dataset/96dbf469-5463-4f4d-8fad-4214c97e5aac)\n\n* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)\n\n* **Derived From** [Bioregional Assessment areas v01](https://data.gov.au/data/dataset/0fd0d820-30b3-451f-a126-a50040426999)\n\n* **Derived From** [Bioregional Assessment areas v02](https://data.gov.au/data/dataset/e414b1b3-c42e-42e9-9cc4-2093054aa35f)\n\n* **Derived From** [NSW Catchment Management Authority Boundaries 20130917](https://data.gov.au/data/dataset/0dc4272e-c081-4ed4-9645-aa336ffacd85)\n\n* **Derived From** [Victoria - Seamless Geology 2014](https://data.gov.au/data/dataset/2872d02e-66cb-42b6-9e5a-63abc8ad871b)\n\n* **Derived From** [Geological Provinces - Full Extent](https://data.gov.au/data/dataset/0a064b3b-2a1e-4672-80d9-03333be67aad)\n\n* **Derived From** [GEODATA TOPO 250K Series 3, File Geodatabase format (.gdb)](https://data.gov.au/data/dataset/96ebf889-f726-4967-9964-714fb57d679b)\n\n