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.**摘要** 本数据集及其元数据声明由第三方提交至生物区域评估计划（Bioregional Assessment Programme），此处按原始提交格式完整呈现。 本数据集为形状文件（shapefile），代表维多利亚州吉普斯兰地区地下水模型的构建范围（Beverly 等，2015）。 该吉普斯兰地下水模型覆盖整个吉普斯兰区域（涵盖陆上与近岸海域），构建时采用了两类数据源： • 现有地质与地下水数据（含维多利亚州含水层框架制图成果）； • 来自高校、能源企业、水务管理机构及持许可的大型用水户的相关数据。 经率定的地下水模型旨在评估油气开发对区域尺度地下水与地表水的影响，同时可评估煤矿开发、近岸油气开采等关键用水活动的影响，但未针对上述活动的不同变体开展相关研究。本模型覆盖所有现有地下水取用活动（陆上与近岸海域）及集成农业系统土地利用情况，以最优估算该区域当前的水平衡。矿井抽水采用现有抽水井的实测数据，并通过设置抽水参数以达成目标压力；近岸开采则通过对应近岸平台的等效抽水量进行显式建模。 研究采用假想的煤层气、致密气与页岩气开发场景，以评估油气开采产业可能对水资源造成的潜在影响。本模型旨在对比不同情景下的水平衡与水位变化与基准工况。尽管水平衡的绝对变化具备参考价值，但在该区域尺度下难以精准获取。 **目的** 明确地下水模型的范围，用于模型边界的可视化展示与界定。 参考文献：《吉普斯兰地下水模型》，2015年6月。作者：Craig Beverly（DEDJTR）、Mark Hocking（DEDJTR）、Xiang Cheng（DEDJTR）、Cassady O'Neil（DEDJTR）、Ralf Schroers（DEDJTR）及Simon Baker（DELWP）。 **数据集历史** 吉普斯兰地下水模型的开发旨在量化吉普斯兰区域内陆上油气开发可能引发的地下水与地表水影响。本多边形要素覆盖研究区域范围，以此划定模型覆盖范围。 **数据集引用** 维多利亚州经济发展、就业、交通与资源部（2015）《吉普斯兰区域模型范围》。生物区域评估源数据集。查阅日期：2018年10月5日，http://data.bioregionalassessments.gov.au/dataset/8e56c1ca-3fe9-4eb6-9ac0-75ba3f4058f8。