Ancillary Hydro Point - NSW Water Theme - GDA2020 Service
收藏资源简介：
Export Data Access APINEWWe have released a new GDA2020 version of our Foundational Spatial Data Framework (FSDF) datasets which replaces the current GDA94 version. This updated service aligns our spatial data with the national standard, improving accuracy, consistency, and compatibility with modern positioning technologies. The previous service will remain available during the transition period as GDA94 services are retired, but users are encouraged to move to the new GDA2020 service as soon as practical.Ancillary Hydro - NSW Water Theme – Point GDA2020 ServiceMetadata Portal Metadata InformationContent TitleAncillary Hydro Point - NSW Water Theme - GDA2020 ServiceContent 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:7844WGS84 Equivalent ToGDA2020Spatial 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API（新版） 我们已推出新版基础空间数据框架（Foundational Spatial Data Framework, FSDF）数据集的GDA2020版本，该版本将替代现行的GDA94版本。本次更新后的服务可使我们的空间数据符合国家统一标准，提升数据精度、一致性，并增强与现代定位技术的兼容性。过渡期间，原GDA94服务仍将保留，但我们鼓励用户尽快迁移至新版GDA2020服务。 辅助水文点——新南威尔士州水文主题GDA2020服务 元数据门户元数据信息 内容标题：辅助水文点——新南威尔士州水文主题GDA2020服务 内容类型：托管要素图层 描述：新南威尔士州辅助水文点数据指代具备独特水文特征，或用于监测、调控河道水流，或用于管理水文空间数据完整性的地理位置。 辅助水文点类别下的要素包括： 1. 钻井：为提取石油、水及其他流体、气体而挖掘或钻凿至地下的坑洞或孔洞。 2. 船闸：水体中两端设有闸门的封闭区域，用于在船舶从一个水位层级通行至另一层级时抬升或降低其水位。船闸数据点位于其所属的宗地产权地块内。 3. 急流：河道中水流湍急且河道坡度升高（但无可能形成瀑布的显著坡度突变），或存在平缓倾斜的沙洲或硬岩露头的区域。急流数据点位于其所属的宗地产权地块内。 4. 泉眼：地下水自然涌出地表的位置。泉眼数据点位于其所属的宗地产权地块内。 5. 潮汐极限标记点：河口潮汐上限的位置，仅标注地形图上已记录的点位。本点要素数据集隶属于新南威尔士州水文主题。潮汐极限标记点数据点位于其所属的宗地产权地块内。 6. 瀑布：河道床面台阶或岩架处水流突然跌落的位置。瀑布数据点位于其所属的宗地产权地块内。 7. 消散点：河道下游水流消散且河道形态变得不确定的位置。消散点数据点位于其所属的宗地产权地块内。 8. 调节器：用于调控河道水流的设备，涵盖防洪闸门或用于管控废物分配的专用拦挡设施。 9. 拦挡设施：横跨河道以控制水流或抬高水位的构筑物，例如挡水坝或堰。 10. 水位计：用于记录水文属性的固定设备。本点要素数据集隶属于地形数据库。水位计数据点位于其所属的宗地产权地块内。 11. 汇点：被识别为汇点的位置，例如高程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。本水文数据的核心用户为新南威尔士州政府及地方各级政府。 空间服务部门将持续更新该主题数据集，数据来源包括相关利益方与数据保管方提供的信息、来自其他内部及外部数据库的数据核验成果、相关研究成果，以及空间服务部门依托航空影像与高程数据开展的常规周期性更新工作。 首次发布日期：2020年2月6日 数据现势性：3000年1月1日 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（*.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部门）。如需获取最新信息，请访问spatial.nsw.gov.au 数据主题、分类及与其他数据集的关联关系：基础空间数据框架（Foundational Spatial Data Framework, FSDF）下的新南威尔士州水文主题 精度说明：本数据集依据澳大利亚国家测绘委员会1975年发布的《地图精度标准》，采用覆盖1:500至1:250000多种比例尺与精度等级的最优可用数据源进行采集。因此，90%的明确界定要素点位的空间位置误差，在对应地图比例尺下不超过0.5毫米。具体对应关系为：1:500比例尺对应0.25米，1:2000对应1米，1:4000对应2米，1:25000对应12.5米，1:50000对应25米，1:100000对应50米。当前，一项用于提升数据空间位置精度与准确性的升级计划正在推进中。 数据集空间参考系统：GDA94 Web服务空间参考系统：EPSG:7844 与WGS84等效基准：GDA2020 空间覆盖范围：全州 数据谱系：如需更多信息，请通过空间服务客户服务中心联系我们 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，请通过空间服务客户服务中心联系我们 条款与条件：知识共享（Creative Commons）标准 开放地理空间联盟规范：本服务已遵循开放地理空间联盟（Open Geospatial Consortium, OGC）相关标准，兼容常见GIS平台的使用需求，可根据客户端使用场景或需求提供缓存或非缓存服务。 数据保管方：新南威尔士州客户服务部空间服务部门（DCS Spatial Services），地址：全景大道346号，巴瑟斯特市，新南威尔士州，邮编2795 联系人：请通过空间服务客户服务中心联系我们 数据聚合方：新南威尔士州客户服务部空间服务部门（DCS Spatial Services），地址：全景大道346号，巴瑟斯特市，新南威尔士州，邮编2795 数据分发方：新南威尔士州客户服务部空间服务部门（DCS Spatial Services），地址：全景大道346号，巴瑟斯特市，新南威尔士州，邮编2795 附加支持信息：数据字典（TRIM编号）
