Gippsland regional model extent

## **Abstract** \n\nThis dataset and its metadata statement were supplied to the Bioregional Assessment Programme by a third party and are presented here as originally supplied. \n\n\n\nThis is a shape file representing the area in Gippsland, Victoria, where a groundwater model was constructed (Beverly etal, 2015).\n\n\n\nThe Gippsland groundwater model was developed for the whole Gippsland region (incorporating onshore and offshore areas) and was developed using:\n\n\\*\tavailable geological and groundwater data (including the Victorian Aquifer Framework mapping) and \n\n\\*\tdata obtained from universities, energy companies, water authorities and major licensed water users.\n\n\n\nThe calibrated groundwater model was designed to enable an assessment of the regional scale impacts on groundwater and surface water due to gas development. It can also assess the impacts of key water uses such as coal mine developments and offshore oil and natural gas extraction, although variations in these uses were not investigated. The modelling accounts for all existing groundwater usage (onshore and offshore) and integrated farming systems land use to best estimate the current water balance in the region. Mine pumping uses existing pumping wells, and pumping is set to achieve target pressures. Offshore extraction is explicitly modelled, using equivalent pumping volumes at the relevant offshore platforms.\n\n\n\nHypothetical coal seam gas, and tight and shale gas development scenarios have been used to determine the assess the potential impact a gas extraction industry may have on water resources. The model is intended to be used to compare different scenarios for changes to the water balance and water levels against a baseline condition. Absolute changes in the water balance, while informative, are difficult at this regional scale.\n\n## **Purpose** \n\nTo define the area of the groundwater model for purposes of illustration and model boundary.\n\n\n\nReference: The Gippsland groundwater model, June 2015. Authors: Craig Beverly (DEDJTR), Mark Hocking (DEDJTR), Xiang Cheng (DEDJTR), Cassady O'Neil (DEDJTR), Ralf Schroers (DEDJTR) and Simon Baker (DELWP).\n\n## **Dataset History** \n\nThe Gippsland Groundwater Model was developed to help quantify the potential groundwater and surface water impacts of possible onshore gas developments in the Gippsland region. This polygon encompasses the area under study and was drawn to cover that extent.\n\n## **Dataset Citation** \n\nVictorian Department of Economic Development, Jobs, Transport and Resources (2015) Gippsland regional model extent. Bioregional Assessment Source Dataset. Viewed 05 October 2018, http://data.bioregionalassessments.gov.au/dataset/8e56c1ca-3fe9-4eb6-9ac0-75ba3f4058f8.