NSW Water Theme - Ancillary Hydro Point
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Export Data Access APINSW Water Theme – Ancillary Hydro PointPlease NoteWGS 84 service aligned to GDA94This\n dataset has spatial reference [WGS 84 ≈ GDA94] which may result in \nmisalignments when viewed in GDA2020 environments. A similar service \nwith a ‘multiCRS’ suffix is available which can support GDA2020, GDA94 \nand WGS 84 ≈ GDA2020 environments.In due course, and allowing time \nfor user feedback and testing, it is intended that the original service \nname will adopt the new 'multiCRS' functionality.Metadata Portal Metadata InformationContent TitleNSW Water Theme - Ancillary Hydro PointContent TypeHosted Feature LayerDescriptionNSW Ancillary Hydro Point data represents a location that has unique hydrology characteristics or monitors or controls stream flow or manages hydrographical spatial data integrity.Features within an Ancillary Hydro Point class include:Bore - A pit or hole dug or bored into the earth, for the extraction of oil, water and other fluids and gases.Lock - An enclosure in a water body with gates at each end to raise or lower vessels as they pass from one level to another. Lock data points are positioned within the cadastral parcel in which they are located.Rapids - An area of broken, fast flowing water in a stream, where the slope of the bed increases (but without a prominent break of slope which might result in a waterfall), or where a gently dipping bar or harder rock outcrops. Rapids data points are positioned within the cadastral parcel in which they are located.Spring - The place where water emerges from the ground naturally. Spring data points are positioned within the cadastral parcel in which they are located.Tidal Limit Marker - The location of the upper tidal limit of an estuary, which only locations noted on topographic maps are identified. This point feature dataset is part of the NSW Water Theme. Tidal Limit Marker data points are positioned within the cadastral parcel in which they are locatedWaterfall - A sudden descent of water over a step or ledge in the bed of a river. Waterfall data points are positioned within the cadastral parcel in which they are located.Dissipation Point - The downstream point at which a watercourse dissipates and becomes indeterminate. Dissipation data points are positioned within the cadastral parcel in which they are located.Regulator - A device to regulate the flow of a watercourse, which includes a floodgate or specialised barrier to control allocation of waste.Barriers - Barrier constructed across a watercourse to control the flow or raise the level of water eg. a dam wall or weir.River Gauge - A fixed device for recording hydrographical attributes. This point feature dataset is part of the Topographic database. River gauge data points are positioned within the cadastral parcel in which they are located.Sink - A location identified as a sink point eg. a point perceived to be of lower elevation than the surrounding land surface.Water security is one of Australia’s major challenges. Key users of the hydrology data are NSW State and Local Government.Spatial Services continuously updates this theme with information sourced from relevant stakeholders and custodians; by data verification from other internal and external databases; research and through Spatial Services’ regular cycle of updating from aerial imagery and elevation data.Initial Publication Date06/02/2020Data Currency01/01/3000Data Update FrequencyOtherContent SourceData provider filesFile TypeESRI File Geodatabase (*.gdb)Attribution©\n State of New South Wales (Spatial Services, a business unit of the \nDepartment of Customer Service NSW). For current information go to spatial.nsw.gov.auData Theme, Classification or Relationship to other DatasetsNSW Water Theme of the Foundation Spatial Data Framework (FSDF)AccuracyThis\n dataset was captured by utilising the best available source at a \nvariety of scales and accuracies, ranging from 1:500 to 1:250 000 \naccording to the National Mapping Council of Australia, Standards of Map\n Accuracy (1975). Therefore, the position of the feature instance will \nbe within 0.5mm at map scale for 90% of the well-defined points. That \nis, 1:500 = 0.25m, 1:2000 = 1m, 1:4000 = 2m, 1:25000 = 12.5m, 1:50000 = \n25m and 1:100000 = 50m. A program to upgrade the spatial location and \naccuracy of data is ongoing.Spatial Reference System (dataset)GDA94Spatial Reference System (web service)EPSG:3857WGS84 Equivalent ToGDA94Spatial ExtentFull StateContent LineageFor additional information, please contact us via the Spatial Services Customer HubData ClassificationUnclassifiedData Access PolicyOpenData QualityFor additional information, please contact us via the Spatial Services Customer HubTerms and ConditionsCreative CommonsStandard and SpecificationOpen\n Geospatial Consortium (OGC) implemented and compatible for consumption \nby common GIS platforms. Available as either cache or non-cache, \ndepending on client use or requirement. Data CustodianDCS Spatial Services346 Panorama AveBathurst NSW 2795Point of ContactPlease contact us via the Spatial Services Customer HubData AggregatorDCS Spatial Services346 Panorama AveBathurst NSW 2795Data DistributorDCS Spatial Services346 Panorama AveBathurst NSW 2795Additional Supporting InformationData DictionariesTRIM Number
导出数据访问：APIN新南威尔士州水主题数据集——辅助水文点位。 请注意：本服务基于WGS 84（World Geodetic System 1984）与GDA94（Geocentric Datum of Australia 1994）对齐。本数据集的空间参考为[WGS 84 ≈ GDA94]，在GDA2020（Geocentric Datum of Australia 2020）环境中查看时可能出现坐标偏移。另有带“multiCRS”后缀的同类服务，可支持GDA2020、GDA94及WGS 84 ≈ GDA2020环境。待完成用户反馈收集与测试后，原服务将逐步升级以支持新增的“multiCRS”功能。 元数据门户元数据信息 内容标题：新南威尔士州水主题——辅助水文点位 内容类型：托管要素图层（Hosted Feature Layer） 描述：新南威尔士州辅助水文点位数据，代表具备独特水文特性、用于监测或控制水流，或管理水文空间数据完整性的位置。 辅助水文点类型包含以下类别： 1. 井（Bore）：为提取石油、水及其他流体与气体而开挖或钻探的坑洞。 2. 船闸（Lock）：水体中两端设有闸门的封闭区域，用于在船舶通过不同水位时抬升或降低其高度。船闸点位位于其所属的地籍地块内。 3. 急流（Rapids）：河道中水流湍急、水面破碎的区域，河床坡度上升但未形成明显的陡坡跌水（即瀑布），或存在平缓倾斜的沙洲/硬质岩石露头。急流点位位于其所属的地籍地块内。 4. 泉（Spring）：地下水自然涌出地表的位置。泉点位位于其所属的地籍地块内。 5. 潮汐极限标记（Tidal Limit Marker）：河口潮汐上限的位置，仅标注地形图中已记录的点位。本点要素数据集属于新南威尔士州水主题数据集。潮汐极限标记点位位于其所属的地籍地块内。 6. 瀑布（Waterfall）：河道床面出现台阶或岩架时水流骤然下跌的区域。瀑布点位位于其所属的地籍地块内。 7. 消散点（Dissipation Point）：河道水流消散、形态变得不确定的下游点位。消散点点位位于其所属的地籍地块内。 8. 调节器（Regulator）：用于调节河道水流的设备，包括用于控制废弃物排放分配的防洪闸门或专用拦挡设施。 9. 拦挡设施（Barriers）：横跨河道以控制水流或抬高水位的构筑物，例如坝体或堰。 10. 水位计（River Gauge）：用于记录水文属性的固定设备。本点要素数据集属于地形数据库。水位计点位位于其所属的地籍地块内。 11. 汇点（Sink）：被识别为汇点的位置，例如海拔低于周边地表的点位。 水资源安全是澳大利亚面临的重大挑战之一。该水文数据的核心用户为新南威尔士州州政府与地方政府。 空间服务局（Spatial Services）会持续更新该主题数据集：数据来源包括相关利益方与托管方提供的信息、来自其他内部及外部数据库的数据核验结果、研究成果，以及通过航空影像与高程数据开展的常规更新周期工作。 首次发布日期：2020/02/06 数据现势性：3000/01/01 数据更新频率：其他 数据来源：数据提供方文件 文件类型：ESRI文件地理数据库（ESRI File Geodatabase, *.gdb） 版权声明：© 新南威尔士州政府（客户服务部下属业务单元空间服务局，Department of Customer Service NSW）。最新信息请访问 spatial.nsw.gov.au 数据主题、分类或与其他数据集的关联关系：基础空间数据框架（Foundation Spatial Data Framework, FSDF）新南威尔士州水主题数据集 精度说明：本数据集采用澳大利亚国家测绘委员会1975年《地图精度标准》中1:500至1:250000的各类最优可用数据源进行采集。因此，90%的明确点位的要素实例位置误差在对应比例尺下的0.5mm范围内，即：1:500比例尺对应0.25米，1:2000比例尺对应1米，1:4000比例尺对应2米，1:25000比例尺对应12.5米，1:50000比例尺对应25米，1:100000比例尺对应50米。目前，针对数据集空间位置与精度的升级工作正在持续推进中。 空间参考系统（数据集）：GDA94（Geocentric Datum of Australia 1994） 空间参考系统（Web服务）：EPSG:3857 等效WGS 84：GDA94 空间范围：全州范围 数据谱系：如需更多信息，请通过空间服务局客户中心（Spatial Services Customer Hub）联系我们。 数据分类：非机密 数据访问政策：开放 数据质量：如需更多信息，请通过空间服务局客户中心联系我们。 条款与条件：知识共享（Creative Commons）标准 开放地理空间联盟（Open Geospatial Consortium, OGC）规范：已实现并兼容主流GIS平台的使用需求。可根据客户端使用场景或需求，以缓存或非缓存模式提供服务。 数据托管方：DCS空间服务局（DCS Spatial Services） 地址：346 Panorama Avenue, Bathurst NSW 2795 联系人：如需更多信息，请通过空间服务局客户中心联系我们。 数据聚合方：DCS空间服务局 地址：346 Panorama Avenue, Bathurst NSW 2795 数据分发方：DCS空间服务局 地址：346 Panorama Avenue, Bathurst NSW 2795 附加支持信息：数据字典：TRIM编号
