NSW Positioning Theme - Survey Marks GDA2020

Content TitleNSW Positioning Theme Survey Mark GDA2020 multiCRSContent TypeMap Image LayerDescriptionThis service provides GDA2020 coordinates, heights and related information for NSW survey marks that form the official State control survey network (as reported in SCIMS). This service supports requests in multiple coordinate reference systems.This service controls the precision of numerical output in a manner that mirrors SCIMS Online available through the Spatial Services Portal.The web service provides a wealth of data on each mark, including:Mark type (Permanent Mark, State Survey Mark, etc.) Mark number Horizontal coordinates and their accuracy (class and order) Heights and their accuracy (class and order) Status of the mark (destroyed, restricted access, etc.)  The mark type is represented using various shapes and the accuracy of the mark (both vertical and horizontal) is communicated by the colour. This web service allows users to easily integrate survey control mark data from SCIMS into Open Geospatial Consortium (OGC) compliant spatial platforms and applications. Data provided by the NSW Survey Mark web service can be used in a variety of engineering and surveying applications, including but not limited to: Cadastral survey planning Flood studies and hydrographic modelling Infrastructure developmentSite calibration at construction sites Elevation modelling Preservation of survey infrastructure.The NSW Survey Mark web service gives users an alternative method to access state control survey data that can be incorporated into their GIS package without needing to log into SCIMS Online.Please note that SCIMS Online is the official option for obtaining state control survey data for cadastral surveys as it offers legal traceability. SCIMS online is accessible via the Spatial portal.Initial Publication Date24/06/2019Data Currency01/01/3000Data Update FrequencyDailyContent SourceData provider filesFile TypeMap Image LayerAttribution© State of New South Wales (Spatial Services, a business unit of the Department of Customer Service NSW). For current information go to spatial.nsw.gov.auData Theme, Classification or Relationship to other DatasetsNSW Positioning Theme of the Foundation Spatial Data Framework (FSDF)AccuracyThis dataset depicts the location of survey marks based on their official GDA2020 coordinates. Survey mark positional accuracy is reported in the data fields for each mark and varies from mark to mark. Over time mark accuracy will change when new observations are added, and survey adjustments are completed.For additional information, please contact us via the Spatial Services Customer HubSpatial Reference System (dataset)GDA2020Spatial Reference System (web service)OtherWGS84 Equivalent ToGDA2020Spatial ExtentFull StateContent LineageFor additional information, please contact us via the Spatial Services Customer HubData ClassificationUnclassifiedData Access PolicyOpenData QualityHigh. Methodology and accuracy standards are defined in the NSW Surveyor General’s directions.For additional information, please contact us via the Spatial Services Customer HubTerms and ConditionsCreative CommonsStandard and SpecificationOpen Geospatial Consortium (OGC) implemented and compatible for consumption by common GIS platforms. Available as either cache or non-cache, depending 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 Dictionaries

内容标题：新南威尔士州定位主题测量标志GDA2020多坐标系服务
内容类型：地图影像图层
描述：本服务为构成官方州级控制测量网的新南威尔士州（New South Wales, NSW）测量标志提供GDA2020（澳大利亚地心基准2020）坐标、高程及相关信息（数据源自SCIMS）。本服务支持多坐标系请求，对数值输出精度的控制逻辑与通过空间服务门户提供的SCIMS Online保持一致。
本Web服务可为每个测量标志提供丰富的数据信息，具体包括：
- 标志类型（永久标志、州级测量标志等）
- 标志编号
- 平面坐标及其精度（等级与阶数）
- 高程及其精度（等级与阶数）
- 标志状态（已损毁、受限通行等）
各类标志类型通过不同形状进行区分，标志的平面与高程精度则通过颜色直观体现。
本Web服务可帮助用户轻松将SCIMS中的测量控制标志数据集成至兼容开放地理空间联盟（Open Geospatial Consortium, OGC）标准的空间平台与应用程序中。
新南威尔士州测量标志Web服务所提供的数据可应用于各类工程与测量场景，包括但不限于：
- 地籍测量规划
- 洪水研究与水文建模
- 基础设施建设
- 施工现场场地校准
- 高程建模
- 测量基础设施保护
新南威尔士州测量标志Web服务为用户提供了一种替代方案，可无需登录SCIMS Online即可获取州级控制测量数据，并将其集成至个人GIS软件包中。
请注意，SCIMS Online仍是获取地籍测量所需州级控制测量数据的官方渠道，因其具备法律溯源性。用户可通过空间门户访问SCIMS Online。
首次发布日期：2019年6月24日
数据时效：3000年1月1日
数据更新频率：每日
数据来源：数据提供方文件
文件类型：地图影像图层
版权声明：©新南威尔士州政府（空间服务部，隶属于新南威尔士州客户服务厅）。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：基础空间数据框架（Foundation Spatial Data Framework, FSDF）中新南威尔士州定位主题
精度说明：本数据集依据测量标志的官方GDA2020坐标展示其位置。每个测量标志的平面定位精度均在对应数据字段中注明，且因标志而异。随着新观测数据的加入与测量平差工作的完成，标志精度会随时间发生变化。
如需更多信息，请通过空间服务客户中心联系我们。
空间参考系统（数据集）：GDA2020
空间参考系统（Web服务）：其他
WGS84等效基准：GDA2020
空间覆盖范围：全州范围
数据溯源：如需更多信息，请通过空间服务客户中心联系我们。
数据分类：非保密
数据访问政策：开放访问
数据质量：优质。其方法学与精度标准符合新南威尔士州测量总监指南要求。如需更多信息，请通过空间服务客户中心联系我们。
条款与条件：知识共享（Creative Commons）
标准与规范：符合开放地理空间联盟（OGC）标准，可兼容常见GIS平台使用。支持缓存与非缓存两种服务模式，可根据用户需求进行选择。
数据保管方：DCS空间服务部，地址：新南威尔士州巴瑟斯特市全景大道346号，邮编2795
联系人：请通过空间服务客户中心联系我们
数据汇总方：DCS空间服务部，地址：新南威尔士州巴瑟斯特市全景大道346号，邮编2795
数据分发方：DCS空间服务部，地址：新南威尔士州巴瑟斯特市全景大道346号，邮编2795
附加支持信息：数据字典