{"help": "https://data.gov.au/data/en/api/3/action/help_show?name=package_show", "success": true, "result": {"author_email": null, "contact_point": "bioregionalassessments@environment.gov.au", "creator_user_id": "2846d45e-3969-4419-a085-84f5716ede91", "duplicate_score": 1, "geospatial_topic": [], "id": "7aff0901-3836-4dc1-9fa2-5d6e8a4684f1", "isopen": false, "language": "eng", "license_id": "Limited access. Requests to the Bioregional Assesment Programme http://www.bioregionalassessments.gov.au/data", "license_title": "Limited access. Requests to the Bioregional Assesment Programme http://www.bioregionalassessments.gov.au/data", "maintainer": null, "maintainer_email": null, "metadata_created": "2018-07-17T23:05:10.997301", "metadata_modified": "2023-08-09T05:09:55.084892", "name": "38f3a272-66cc-4fe2-bef9-ff4aedf6fc24", "notes": "## **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\nThis dataset includes files for catchment boundaries and SILO cell percentages.\n\n\n\nThe catchment boundaries were delineated using 1 sec Shuttle Radar Topography Mission (SRTM) Digital Elevation Model (DEM) dataset with gauge locations as pour points. Catchments were then intersected with SILO climate cells for use in gridded AWRA hydrological modelling. The new boundaries are better then those delineated using the Bureau of Meteorology's (BOM) Geofabric for all catchments, except for the catchment 209003 where a flaw in the SRTM derived flowpath excluded a valley when compared with the Geofabric. This catchment was manually edited to conform with the Geofabric representation of 209003.\n\n\n\nThe grid cell percentage was calculated for all 5km resolution SILO grid cells located within each catchment. The percentage information is used for gridded AWRA hydrological modelling and for weighting average for estimating streamflow aggregated at each gauge outlet.\n\n## **Purpose** \n\nThis dataset is intermediate, delineated using 1-sec SRTM DEM dataset, and is used for AWRA hydrological modelling.\n\n## **Dataset History** \n\nA point feature dataset was created from the gauge location spreadsheet. This was compared with SRTM 1 sec derived flow accumulation  and ArcMap Basemap imagery and point features manually snapped to the SRTM flowpaths reperesenting the river names in the gauge name.\n\n\n\nContributing catchment rasters were then generated using the ArcGIS 10.1 Spatial Analyst Tool \"WATERSHED with  snapped gauge location  pour points and the SRTM derived flow direction grid as inputs.\n\n\n\nResultant catchment rasters were then exported as shapefiles and compared with the coarser Geofabric catchments. All but one catchment conformed in extent. SRTM derived catchment for gauge 209003 excluded a large flat valley (when compared to with the geogfabric due to a misdirected flowpath. This was manually corrected.\n\n\n\nCatchment shapefiles were then intersected with BILO Climate model cells to obtain 1) percentage of cell in the catchment and 2) proportion of catchment made up by the cell. Both these determinations were based on intersected areas calculated on the Albers equal area projection.\n\n\n\nThese cell to catchments ratios were then exported to database file (dbf).\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2014) Selected catchment boundaries and their SILO cell percentages for AWRA modelling for the Gloucester subregion. Bioregional Assessment Derived Dataset. Viewed 18 July 2018, http://data.bioregionalassessments.gov.au/dataset/38f3a272-66cc-4fe2-bef9-ff4aedf6fc24.\n\n## **Dataset Ancestors** \n\n* **Derived From** [GLO SW Model Calibration Gauges v01](https://data.gov.au/data/dataset/0336445d-a34c-4a4c-a83d-000a3ed1895d)\n\n* **Derived From** [Gloucester Surface Water Discharge & Quality extract v1 060314](https://data.gov.au/data/dataset/5915baad-51c9-4637-9461-88e88426a981)\n\n* **Derived From** [Geofabric Surface Catchments - V2.1](https://data.gov.au/data/dataset/ea1b6f6c-e8a3-4c78-a463-044c89857fc0)\n\n* **Derived From** [BA SYD 1 sec SRTM (h) DEM and hydrological derivatives](https://data.gov.au/data/dataset/90f5ef3c-2141-4450-b44c-1afbd843236f)\n\n* **Derived From** [Mean Annual Climate Data of Australia 1981 to 2012](https://data.gov.au/data/dataset/02418c67-f8bb-48a8-88a3-2a5c6b485f78)\n\n* **Derived From** [Geoscience Australia, 1 second SRTM Digital Elevation Model (DEM)](https://data.gov.au/data/dataset/9a9284b6-eb45-4a13-97d0-91bf25f1187b)\n\n* **Derived From** [BILO Gridded Climate Data: Daily Climate Data for each year from 1900 to 2012](https://data.gov.au/data/dataset/7aaf0621-a0e5-4b01-9333-53ebcb1f1c14)\n\n* **Derived From** [Climate model 0.05x0.05 cells and cell centroids](https://data.gov.au/data/dataset/3df5188b-f027-4d51-99a8-45e2800f29c8)\n\n", "num_resources": 0, "num_tags": 2, "organization": {"id": "69f37b4c-bdf0-4c85-bd56-82fa6d6b087a", "name": "bioregional-assessment-program", "title": "Bioregional Assessment Program", "type": "organization", "description": "The Australian Government's bioregional assessments programs are a collaboration between the Department of Agriculture, Water and the Environment, the Bureau of Meteorology, CSIRO and Geoscience Australia. There are two separate programs of bioregional assessments.\r\n\r\nThe Bioregional Assessment Program (2012 - 2017) seeks to better understand the potential impacts of coal seam gas and large coal mining developments on water resources and water-related assets. It is one of a number of actions undertaken by the Australian Government to strengthen the science underpinning decision making on coal seam gas and large coal mining developments.\r\n\r\nThe Geological and Bioregional Assessment Program (2017 - 2021) assessed the potential impacts of shale and tight gas development on water and the environment. The Program assessed three priority geological basins: the Cooper Basin in Queensland and South Australia, the Isa Superbasin in Queensland and the Beetaloo Sub-basin in the Northern Territory (referred to as GBA regions", "image_url": "2015-10-30-051742.096388Bioregional-assessments-logo-800.jpg", "created": "2015-10-30T05:17:42.164347", "is_organization": true, "approval_status": "approved", "state": "active"}, "original_harvest_source": {"site_url": "https://data.gov.au/data/dataset/", "href": "https://data.gov.au/data/dataset/38f3a272-66cc-4fe2-bef9-ff4aedf6fc24", "title": "data.gov.au"}, "owner_org": "69f37b4c-bdf0-4c85-bd56-82fa6d6b087a", "private": false, "spatial_coverage": "POLYGON ((0 0, 0 0, 0 0, 0 0))", "state": "active", "temporal_coverage_from": "2018-07-17 23:05:10", "title": "Selected catchment boundaries and their SILO cell percentages for AWRA modelling for the Gloucester subregion", "type": "dataset", "unpublished": false, "url": null, "version": null, "extras": [{"key": "contact_info", "value": "false"}, {"key": "data_state", "value": "active"}, {"key": "field_of_research", "value": "[]"}, {"key": "jurisdiction", "value": "NONE"}, {"key": "update_freq", "value": "never"}], "tags": [{"display_name": "Gloucester subregion", "id": "32341543-27d4-497d-9ac3-7099d3931857", "name": "Gloucester subregion", "state": "active", "vocabulary_id": null}, {"display_name": "oceans", "id": "30ec679e-bf21-46dc-961c-e11cf0eb7c38", "name": "oceans", "state": "active", "vocabulary_id": null}], "resources": [], "groups": [], "relationships_as_subject": [], "relationships_as_object": []}}