Gippsland Basin bioregion Preliminary Assessment Extent (PAE)

## **Abstract** \n\nThis dataset was derived by the Bioregional Assessment Programme. The parent dataset is 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 boundary defines the area of interest for the Gippsland Basin Bioregional Assessment.\n\n## **Dataset History** \n\nThe Gippsland Project Boundary dataset was buffered by 10km on the northern boundary. The buffer incorporates the uncertainty in the exact location of the transition from local scale groundwater flow systems (to the north) and intermediate to regional scale flow systems (to the south).\n\n\n\nThe buffer was implemented in ArcMap by:\n\n1. Splitting the Gippsland Project Boundary into two polygons; the area adjacent to the northern border, and the remainder of the region.\n\n2. Buffering the northern section by 10km.\n\n3. Joining the buffer to the Southern polygon and dissolving the boundaries.\n\n4. Manually editing some areas to remove the buffer where it extended to the east and west of the required boundary.\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2014) Gippsland Basin bioregion Preliminary Assessment Extent (PAE). Bioregional Assessment Derived Dataset. Viewed 05 October 2018, http://data.bioregionalassessments.gov.au/dataset/d7f3985c-ce48-40f7-a625-b6689261f41b.\n\n## **Dataset Ancestors** \n\n* **Derived From** [Victoria - Seamless Geology 2014](https://data.gov.au/data/dataset/2872d02e-66cb-42b6-9e5a-63abc8ad871b)\n\n* **Derived From** [Gippsland Project boundary](https://data.gov.au/data/dataset/27413de5-d13a-4231-ac79-fc77f4cbb5f7)\n\n* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)\n\n

**摘要**

本数据集由生物区域评估计划（Bioregional Assessment Programme）衍生生成。本元数据（metadata）声明中的**谱系（Lineage）**字段标注了其父级数据集来源；本衍生数据集的制作流程详见本元数据声明中的**历史（History）**字段。

此边界划定了吉普斯兰盆地（Gippsland Basin）生物区域评估的研究范围。

## **数据集历史**

吉普斯兰项目边界数据集的北部边界被施加了10公里的缓冲区。该缓冲区用于覆盖北部局域尺度地下水流动系统与南部中层-区域尺度地下水流动系统之间过渡位置的不确定性。

该缓冲区通过ArcMap工具实现，具体操作步骤如下：

1. 将吉普斯兰项目边界拆分为两个面要素：紧邻北部边界的区域，以及研究区剩余部分；

2. 对北部区域施加10公里缓冲区；

3. 将缓冲区与南部面要素合并，并溶解边界以消除重叠；

4. 对部分区域进行手动编辑，移除超出预设边界东西两侧的缓冲区。

## **数据集引用**

生物区域评估计划（2014）《吉普斯兰盆地生物区域初步评估范围（PAE）》，生物区域评估衍生数据集。查阅日期：2018年10月5日，访问链接：http://data.bioregionalassessments.gov.au/dataset/d7f3985c-ce48-40f7-a625-b6689261f41b。

## **数据集溯源**

* **衍生自** [维多利亚州2014年无缝地质数据（Victoria - Seamless Geology 2014）](https://data.gov.au/data/dataset/2872d02e-66cb-42b6-9e5a-63abc8ad871b)

* **衍生自** [吉普斯兰项目边界（Gippsland Project boundary）](https://data.gov.au/data/dataset/27413de5-d13a-4231-ac79-fc77f4cbb5f7)

* **衍生自** [GEODATA 25万系列3地形数据（GEODATA TOPO 250K Series 3）](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)