HUN SW Modelling Reaches and HRV lookup 20171121 v05

## **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\nContains line shapefiles and an excel spreadsheet and csv text file lookup table. The line shapefile derived from the Geofabric Surface Water Network streams (source data) and spatially represents the reaches described in the accompanying lookup table so that surface water modelling based Hydrological Response Variables (HRVs) can be applied spatially along stream lengths. Differs from previous versions in that some reaches previous designated as Ph (potentially impacted but not quantified) have now been assigned to a surface water modelling node. They include reach sections with no modelled change, no inferred change etc and thus extend outside the SW ZoPHC. All reaches described in interpolations spreadsheet are intact in that they extent outside the ZoPHC and event the PAE. Also included are the "rch_200" and "rch_300 reaches". These are reaches identified as additional potentially impacted reaches over and above those described by the interpolations spreadsheet. Also included is the revised reach to SW node lookup table for the HRVs.\n\n## **Dataset History** \n\nLine segments from the Geofabric Network Streams source dataset were grouped into reach sections based on descriptions in the accompanying interpolations lookup table (supplied by Surface Water Modelling team) using the surface water node locations and described river junctions and other defined locations as spatial reference. Reaches were given a unique ID and dissolved into a multipart lines. In addition to the reaches described in the interpolations spreadsheet, additional reaches were identified (using the riverine perenniality classified stream network) as subject to potential hydrological change. These were non-ephemeral streams (LC_id = 22, 23, 25) rising out of or intersecting the groundwater zone of potential hydrological change (rch_200) and ephemeral reaches (LC_id = 24) rising out of or intersecting baseline mine pits (rch_300).\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2017) HUN SW Modelling Reaches and HRV lookup 20171121 v05. Bioregional Assessment Derived Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/8c330d59-2ecc-4c35-8f9e-68b91a4ae98a.\n\n## **Dataset Ancestors** \n\n* **Derived From** [HUN SW Model nodes 20170110](https://data.gov.au/data/dataset/a7b21661-0e01-4344-b599-bf9c6d55da7f)\n\n* **Derived From** [HUN AWRA-L simulation nodes_v01](https://data.gov.au/data/dataset/ae5129b2-bc29-4317-b72c-fe554fe7d315)\n\n* **Derived From** [National Surface Water sites Hydstra](https://data.gov.au/data/dataset/f7edc5e5-93ee-4527-bed5-a118b4017623)\n\n* **Derived From** [Geofabric Surface Network - V2.1](https://data.gov.au/data/dataset/ed3acf9b-888c-4d53-b376-ecab89781651)\n\n* **Derived From** [HUN AWRA-L simulation nodes v02](https://data.gov.au/data/dataset/9e947329-d7ca-4e83-a5a9-5581a8731dd5)\n\n* **Derived From** [HUN River Perenniality v01](https://data.gov.au/data/dataset/3200fb73-72f3-4770-b012-3f49af454493)\n\n* **Derived From** [Geofabric Surface Network - V2.1.1](https://data.gov.au/data/dataset/d84e51f0-c1c1-4cf9-a23c-591f66be0d40)\n\n

**摘要**

本数据集由生物区域评估计划（Bioregional Assessment Programme）基于多份源数据集衍生生成。本元数据声明的Lineage字段已列明所有源数据集，而生成该衍生数据集所历经的处理流程详见本元数据声明的History字段。

本数据集包含线状形状文件（shapefile）、Excel电子表格以及逗号分隔值（CSV）文本查找表。该线状形状文件源自地质构造地表水网络（Geofabric Surface Water Network）径流源数据，其空间表征了配套查找表中描述的水文河段，可将基于地表水建模的水文响应变量（Hydrological Response Variables, HRVs）沿河道长度进行空间应用。本数据集与过往版本的差异在于：部分此前被标记为Ph（潜在受影响但未量化）的河段现已被分配至地表水建模节点。此类河段包含无建模变化、无推断变化等类型，其范围已超出SW ZoPHC（Surface Water Zone of Potential Hydrological Change）。插值电子表格中描述的所有河段均保持完整，其范围超出ZoPHC甚至PAE。此外还包含"rch_200"与"rch_300河段"，此类为插值电子表格所描述的潜在受影响河段之外的新增潜在受影响河段。同时还包含针对HRVs的修订后河段至SW节点查找表。

**数据集历史**

本数据集以地表水节点位置、已标注的河流交汇点及其他指定位置作为空间参考，基于配套插值查找表（由地表水建模团队提供）中的描述，将地质构造网络径流源数据中的线段分组为水文河段。为各河段分配唯一标识符后，将其合并为多段线要素。除插值电子表格中描述的河段外，研究团队还通过河川常年性分类径流网络识别出了其他潜在受水文变化影响的河段：包括源自或相交地下水潜在水文变化区的非季节性河流（LC_id = 22、23、25），即rch_200；以及源自或相交基准矿山坑的季节性河段（LC_id=24），即rch_300。

**数据集引用**

生物区域评估计划（Bioregional Assessment Programme）（2017）：《HUN SW建模河段与HRV查找表 20171121 v05》，生物区域评估衍生数据集。检索于2019年3月13日，访问链接：http://data.bioregionalassessments.gov.au/dataset/8c330d59-2ecc-4c35-8f9e-68b91a4ae98a.

**数据集溯源**

* **衍生自** [HUN SW Model nodes 20170110](https://data.gov.au/data/dataset/a7b21661-0e01-4344-b599-bf9c6d55da7f)

* **衍生自** [HUN AWRA-L模拟节点_v01](https://data.gov.au/data/dataset/ae5129b2-bc29-4317-b72c-fe554fe7d315)

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

* **衍生自** [地质构造地表网络 - V2.1](https://data.gov.au/data/dataset/ed3acf9b-888c-4d53-b376-ecab89781651)

* **衍生自** [HUN AWRA-L模拟节点 v02](https://data.gov.au/data/dataset/9e947329-d7ca-4e83-a5a9-5581a8731dd5)

* **衍生自** [HUN河川常年性 v01](https://data.gov.au/data/dataset/3200fb73-72f3-4770-b012-3f49af454493)

* **衍生自** [地质构造地表网络 - V2.1.1](https://data.gov.au/data/dataset/d84e51f0-c1c1-4cf9-a23c-591f66be0d40)