HUN AWRA-R simulation catchments v01

## **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\nResidual contributing catchments for selected stream gauges and simulation nodes in the Hunter subregion. Generated from the Geoscience Austraila 9 second flow direction grid. Catchments exist as a shapefile file.\n\n## **Purpose** \n\nResidual catchment boundaries are used in river system modelling.\n\n## **Dataset History** \n\nSelected gauge locations and simulation nodes were used as pour points to generate contributing catchment areas from the GA 9 second flow direction raster. The catchment delineation was achieved using the ArcGIS 10.1 Spatial Analyst WATERSHED tool from the Hydrology toolbox. Resultant watershed raster was also converted to a shapefile (no generalisation).\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (XXXX) HUN AWRA-R simulation catchments v01. Bioregional Assessment Derived Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/845f31df-5027-4ad7-9b2f-1fb03a874ad8.\n\n## **Dataset Ancestors** \n\n* **Derived From** [HUN AWRA-R simulation nodes v01](https://data.gov.au/data/dataset/fda20928-d486-49d2-b362-e860c1918b06)\n\n* **Derived From** [National Surface Water sites Hydstra](https://data.gov.au/data/dataset/f7edc5e5-93ee-4527-bed5-a118b4017623)\n\n* **Derived From** [GEODATA 9 second DEM and D8: Digital Elevation Model Version 3 and Flow Direction Grid 2008](https://data.gov.au/data/dataset/ebcf6ca2-513a-4ec7-9323-73508c5d7b93)\n\n

**摘要**

本数据集由生物区域评估计划（Bioregional Assessment Programme）基于多套源数据集衍生而来。源数据集的标识信息详见本元数据声明的数据谱系字段。本衍生数据集的制作流程详见本元数据声明的数据历史字段。

本数据集包含亨特次区域内选定水文测站与模拟节点对应的剩余汇流流域，基于澳大利亚地质调查局（Geoscience Australia）9秒分辨率流向栅格生成，流域数据以Shapefile格式文件存储。

**数据用途**

剩余汇流流域边界可用于河流水系模拟建模。

**数据集历史**

选定的测站位置与模拟节点作为出水口（pour point），基于澳大利亚地质调查局（GA）9秒分辨率流向栅格生成汇流流域面积。本次流域勾绘采用ArcGIS 10.1空间分析模块水文工具箱中的WATERSHED工具完成。生成的流域栅格数据亦转换为Shapefile格式文件（未进行概化处理）。

**数据集引用**

生物区域评估计划（Bioregional Assessment Programme）（XXXX）：HUN AWRA-R模拟流域v01。生物区域评估衍生数据集。2019年3月13日查阅，http://data.bioregionalassessments.gov.au/dataset/845f31df-5027-4ad7-9b2f-1fb03a874ad8。

**数据集溯源**

* **衍生自** [HUN AWRA-R模拟节点v01](https://data.gov.au/data/dataset/fda20928-d486-49d2-b362-e860c1918b06)

* **衍生自** [全国地表水站点Hydstra数据集](https://data.gov.au/data/dataset/f7edc5e5-93ee-4527-bed5-a118b4017623)

* **衍生自** [GEODATA 9秒分辨率DEM与D8：数字高程模型（Digital Elevation Model）第3版及2008年流向栅格](https://data.gov.au/data/dataset/ebcf6ca2-513a-4ec7-9323-73508c5d7b93)