BA SYD selected GA TOPO 250K data plus added map features

## **Abstract** \n\nThis dataset is derived from GA TOPO 250K Series 3 features clipped to the BA_SYD and environs extent for the purpose of providing geographic context in BA_SYD report map images. 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\nSelected features currently include:\n\nLakes\n\nPlaceNames\\*\n\nPopulatedPlaces\n\nRailways\n\nRoads\n\nWatercourseLines\n\n\n\nadditional features may be included as required (relevant feature classes asterisked). \n\n\n\nCurrently the only addition has been to PlaceNames with the addition of Census Spring (see Lineage).\n\n## **Purpose** \n\nproviding geographic context in BA_SYD report map images.\n\n## **Dataset History** \n\nA rectangular mask polygon feature was manually drawn around the BA_SYD (ie NSB+SSB) boundary extending approximately 100km beyond the BA_SYD extent. This mask is included in the dataset (SYD_clip).\n\n\n\nSelected features from the national GEODATA TOPO 250K series 3 were overlaid with the mask and intersecting features extracted.\n\n\n\nExtracted feature classes have the same names as the source features.\n\n\n\nThe additional feature of "Census Spring" was added to place names. It's approximate location was sourced from \n\nFig 4, p172 of the document :\n\n\n\nDuralie Coal (2013) Duralie Coal Mine - Water Management Plan (Document No. WAMP-R02-D) Appendix 3 - Groundwater Management Plan . September 2013 Document No. GWMP-R02-C (00519574) . Fig4 pp13\n\n\n\nhttp://www.gloucestercoal.com.au/documents/community_environment/duralie/Duralie_Coal_Mine_Water_Management_Plan.pdf\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2014) BA SYD selected GA TOPO 250K data plus added map features. Bioregional Assessment Derived Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/ba5feac2-b35a-4611-82da-5b6213777069.\n\n## **Dataset Ancestors** \n\n* **Derived From** [GEODATA TOPO 250K Series 3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)\n\n

## **摘要（Abstract）**
本数据集源自GA TOPO 250K系列3（GA TOPO 250K Series 3）的要素，经裁切至BA_SYD及其周边范围，用于为BA_SYD报告的地图图像提供地理背景支撑。本元数据声明的**谱系（Lineage）**字段中已注明源数据集信息，生成该派生数据集的具体处理流程则见于本元数据声明的**历史（History）**字段。

当前选定的要素包括：
- 湖泊（Lakes）
- 地名要素（PlaceNames*）
- 居民地（PopulatedPlaces）
- 铁路（Railways）
- 道路（Roads）
- 水系线（WatercourseLines）

后续可根据需求新增相关要素（带星号标注的要素类为相关类别）。目前仅针对地名要素新增了**普查泉（Census Spring）**（详见谱系字段）。

## **用途（Purpose）**
为BA_SYD报告的地图图像提供地理背景支撑。

## **数据集历史（Dataset History）**
首先围绕BA_SYD（即NSB+SSB）边界手动绘制了一个矩形掩膜面要素，其范围超出BA_SYD边界约100公里。该掩膜已包含在本数据集（SYD_clip）中。
将国家GEODATA TOPO 250K系列3的选定要素与该掩膜叠加，提取出与掩膜相交的要素。
提取得到的要素类与源要素名称保持一致。

随后在地名要素中新增了“普查泉”要素，其近似位置来源于该文档第172页的图4：杜拉利煤炭公司（2013）《杜拉利煤矿水管理计划》（文件编号：WAMP-R02-D）附录3——地下水管理计划，2013年9月，文件编号：GWMP-R02-C（00519574），对应第13页的图4。该文档可通过以下链接获取：http://www.gloucestercoal.com.au/documents/community_environment/duralie/Duralie_Coal_Mine_Water_Management_Plan.pdf

## **数据集引用（Dataset Citation）**
生物区域评估计划（Bioregional Assessment Programme）（2014）《BA_SYD选定GA TOPO 250K数据及新增地图要素》，生物区域评估派生数据集，2019年3月13日查阅，获取链接：http://data.bioregionalassessments.gov.au/dataset/ba5feac2-b35a-4611-82da-5b6213777069。

## **数据集溯源（Dataset Ancestors）**
* **派生自** [GEODATA TOPO 250K系列3](https://data.gov.au/data/dataset/a0650f18-518a-4b99-a553-44f82f28bb5f)