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），并按原始提交状态在此刊出。 为识别通用径流响应模型的相关性，研究将河流划分为五大径流情势（flow regime）群组：此前提及的“常年（permanent）”与“临时（ephemeral）”径流情势，以及另外三个群组——“常年低间歇（perennial and lowly intermittent）”、“间歇（intermittent）”与“高间歇（highly intermittent）”。其中，常年河流指通常全年径流，但在干旱年份的旱季会出现断流；低间歇河流指可全年径流，但通常存在季节性断流时段；间歇河流指在每年旱季必然断流；高间歇河流则几乎与临时河流无异，但径流事件存在延伸的退水尾部。 该五大径流情势分组基于澳大利亚土地与水务局（Land and Water Australia）发表的生态水文学分类研究（Pusey等，2009）估算得出。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，被用于估算不同径流情势的分布区域。其中《澳大利亚径流情势生态水文学分类》研究识别出12种径流情势类别，不仅涵盖径流发生的频率或间歇性，还包含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”类别）。该研究基于选定的若干基本天然径流的水文测站的实测径流序列，尽管其考虑了在选定站点之外预测12种径流情势类别的方法，但并未生成径流情势类别的空间图层。 详细信息请参阅《Sayers, Jon (草案) 水共享计划环境流量监测与建模项目手册》，新南威尔士州水资源办公室，纽卡斯尔。 **数据集历史** 空间图层源自生态水文学分类产品，该产品用于基于河流径流间歇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”）。河道特征通过River Style®制图进行识别（详见1.3.3节“River Style®的应用方式”）。详细信息请参阅上述手册。 **数据集引用** 新南威尔士州水资源办公室（2015）《格洛斯特河类型 版本01》，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.