Gloucester River Types v01

## **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\nFor the purposes of identifying the relevance of generic flow response models the streams were broken into five broad groups of flow regimes; the two mentioned earlier "permanent" and "ephemeral" regimes, and three further groups, "perennial and lowly intermittent", "intermittent" and "highly intermittent". Perennial being streams that typically flow all year round, but during drought will cease to flow during the dryer parts of the year. Lowly intermittent being streams where they can flow all year round but they typically have a seasonal cease to flow period. Intermittent being stream where they always cease to flow during the dry seasons of the year. And highly intermittent where the streams are virtually ephemeral but have extended tails to the events.\n\nThe five flow regime groupings are estimated from Ecohydrology classification work published by Land and Water Australia (Pusey et al. 2009). Two studies carried out as part of the "Ecohydrology regionalisation of Australia" project where used to estimates where the different flow regimes occur. The study, "Ecohydrology Classification of Australia's Flow Regimes" identified 12 flow regime classes, which did not only capture the frequency or intermittence of flow, but also the seasonality of specific flows (eg "stable winter baseflow", or "unpredictable summer highly intermittent" class). The study was based on measured streamflow sequences for a select number of gauging station where the flows are essentially natural, and while it considered techniques for predicting the 12 flow classes in points other than the selected sites a spatial layer of flow regime classes was not produced.\n\n\n\nRefer to "Sayers, Jon (draft) Water Sharing Plan Environmental Flow Monitoring and Modelling Program manual, NSW Office of Water, Newcastle" for further detail.\n\n## **Dataset History** \n\nA spatial layer is derived from an Ecohydrology classification product, which is used to identify river hydrology classification base of the degree on intermittency flow of the rivers (see section 1.3.2 How Ecohydrology Classification is used). The riverine features are identified using the River Style® mapping (see section 1.3.3 How River Styles® is used).\n\n\n\nRefer to "Sayers, Jon (draft) Water Sharing Plan Environmental Flow Monitoring and Modelling Program manual, NSW Office of Water, Newcastle" for further detail.\n\n## **Dataset Citation** \n\nNSW Office of Water (2015) Gloucester River Types v01. Bioregional Assessment Source Dataset. Viewed 13 March 2019, http://data.bioregionalassessments.gov.au/dataset/4949961d-be38-4d42-9aec-5dfec55fed7b.

**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），此处按原始提交版本呈现。

为识别通用水流响应模型的相关性，研究将河流划分为五大类流态：前文提及的“常年（permanent）”流态与“瞬时（ephemeral）”流态，以及另外三类：“常年性且低间歇性”、“间歇性”和“高间歇性”流态。其中，常年性流态指通常全年径流，但在干旱年份的旱季会断流；低间歇性流态指河流可全年径流，但通常存在季节性断流时段；间歇性流态指河流在每年旱季必然断流；高间歇性流态则几乎接近瞬时流态，但径流事件存在延伸性尾部。

上述五大流态分组基于澳大利亚土地与水务局（Land and Water Australia）发布的生态水文学（Ecohydrology）分类研究（Pusey等，2009）估算得到。两项作为“澳大利亚生态水文学区域化”项目组成部分的研究，被用于估算不同流态的分布区域。其中《澳大利亚流态生态水文学分类》研究识别出12类流态，其不仅涵盖径流频率或间歇性特征，还纳入了特定径流的季节性特征（例如“稳定冬季基流”或“不可预测夏季高间歇性”类）。该研究基于选定的若干天然径流实测水文站的流量序列展开，尽管其考虑了在选定站点以外的区域预测12类流态的技术，但并未生成流态分类的空间图层。

更多细节可参阅《Sayers, Jon (草案) 水资源共享计划环境流量监测与建模项目手册》，新南威尔士州水务局（NSW Office of Water），纽卡斯尔。

**数据集历史**

本空间图层源自生态水文学（Ecohydrology）分类产品，用于基于河流间歇性径流程度识别河流水文分类（详见1.3.2节“生态水文学分类的应用方式”）。河流特征通过River Style®制图识别（详见1.3.3节“River Style®的应用方式”）。

更多细节可参阅《Sayers, Jon (草案) 水资源共享计划环境流量监测与建模项目手册》，新南威尔士州水务局（NSW Office of Water），纽卡斯尔。

**数据集引用**

新南威尔士州水务局（NSW Office of Water，2015）《格洛斯特河类型 v01》，生物区域评估源数据集。2019年3月13日查阅，http://data.bioregionalassessments.gov.au/dataset/4949961d-be38-4d42-9aec-5dfec55fed7b。