NSW Elevation and Depth Theme - Spot Height
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Access APINSW Elevation and Depth Theme – Spot\nHeightPlease Note\nWGS 84 service aligned to GDA94\nThis dataset has spatial reference [WGS 84 ≈ GDA94] which may result in\nmisalignments when viewed in GDA2020 environments. A similar service with a\n‘multiCRS’ suffix is available which can support GDA2020, GDA94 and WGS 84 ≈\nGDA2020 environments.\nIn due course, and allowing time for user feedback and testing, it is intended\nthat the original service name will adopt the new multiCRS functionality.Metadata Portal Metadata InformationContent TitleNSW Elevation and Depth Theme - Spot HeightContent TypeHosted Feature LayerDescriptionSpot Height is a point feature class representing individual points on the earth’s surface, the elevation of which has been related to a datum by ground or photogrammetric survey. It is a part of the NSW Elevation Theme.Elevation\n and Depth provides an authoritative digital representation of the \nEarth’s surface enabling evidence based decision making, policy \ndevelopment and an essential reference to other foundation datasets.Elevation and Depth underpins:Safe hydrographic, aeronautical and road navigationClimate science, including climate change adaptationEmergency management and natural hazard risk assessmentEnvironmental, including water managementDefinition of maritime and administrative boundariesDefence and national securityNatural resource exploration and exploitationData is as initially captured at 1:25 000, 1:50 000 and 1:100 000 scales from stereoscopic aerial photography.Initial Publication Date10/02/2020Data 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 Elevation and Depth Theme of the Foundation Spatial Data Framework (FSDF)AccuracyThis dataset was captured by \nutilising the best available source at a variety of scales and \naccuracies, ranging from 1:500 to 1:250 000 according to the National \nMapping Council of Australia, Standards of Map Accuracy (1975). \nTherefore, the position of the feature instance will be within 0.5mm at \nmap scale for 90% of the well-defined points. That is, 1:500 = 0.25m, \n1:2000 = 1m, 1:4000 = 2m, 1:25000 = 12.5m, 1:50000 = 25m and 1:100000 = \n50m. A program to upgrade the spatial location and accuracy of data is \nongoing. Spatial Accuracy Horizontal: +/-1.25 @95% Confidence IntervalSpatial Accuracy Vertical: +/-0.9 @95% Confidence IntervalCalibration certification (Manufacturer/Cert. Company): DCS, Spatial Services.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 SpecificationAS/NZS ISO 19115 - ANZLIC Metadata Profile Version 1.1AS/NZS ISO 19131:2008 Geographic Information - Data product specificationsOGC compliant Web Map Services (WMS) and Web Feature Services (WFS)Metadata\n for the relevant Spatial Services datasets complies with AS/NZS ISO \n19115-2, ANZLIC Metadata Profile v1.1 and ISO 19139 Intergovernmental \nCommittee on Surveying and Mapping (ICSM): Guidelines for Digital \nElevation DataDCS Spatial Services: Elevation Data Products Specification and Description (LiDAR)DCS Spatial Services: Elevation Data Products Specification and Description (Airborne Photogrammetry) Data CustodianDCS Spatial Services346 Panorama Ave Bathurst NSW 2795Point of ContactPlease contact us via the Spatial Services Customer HubData AggregatorDCS Spatial Services346 Panorama Ave Bathurst NSW 2795Data DistributorDCS Spatial Services346 Panorama Ave Bathurst NSW 2795Additional Supporting InformationData DictionariesTRIM Number
访问APINSW高程与深度主题——点高程(Spot Height)
请注意:
本WGS 84服务适配GDA94基准。
本数据集的空间参考为[WGS 84 ≈ GDA94],在GDA2020环境中查看时可能出现坐标偏移。另有一款带有“multiCRS”后缀的同类服务,可支持GDA2020、GDA94以及WGS 84 ≈ GDA2020多种坐标参考环境。
待收集用户反馈并完成测试后,本原始服务将升级集成multiCRS功能。
元数据门户元数据信息
内容标题:新南威尔士州高程与深度主题——点高程(Spot Height)
内容类型:托管要素图层(Hosted Feature Layer)
描述:
点高程(Spot Height)为点要素类,代表地球表面的单个点位,其高程通过地面测量或摄影测量与基准面关联。本数据集属于新南威尔士州高程主题的组成部分。
高程与深度(Elevation and Depth)提供了地球表面的权威数字化表达,可支撑基于实证的决策制定、政策规划,并可作为其他基础数据集的核心参考依据。高程与深度数据集可应用于:
安全的水文、航空与道路导航
气候科学研究,包括气候变化适应
应急管理与自然灾害风险评估
环境保护,包括水资源管理
海洋与行政边界划定
国防与国家安全
自然资源勘探与开发
数据最初通过立体航空摄影按1:25000、1:50000及1:100000比例尺采集。
首次发布日期:2020年2月10日
数据时效性:3000年1月1日
数据更新频率:其他
内容来源:数据提供方文件
文件类型:ESRI文件地理数据库(ESRI File Geodatabase, *.gdb)
署名:© 新南威尔士州政府(空间服务部,新南威尔士州客户服务厅下属业务单元)。如需获取最新信息,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:属于基础空间数据框架(Foundation Spatial Data Framework, FSDF)下的新南威尔士州高程与深度主题
精度:
本数据集依据澳大利亚国家测绘委员会1975年《地图精度标准》,采用多种比例尺与精度等级的现有最优数据源采集,比例尺覆盖1:500至1:250000。因此,90%的清晰定义点位在对应比例尺下的平面位置误差不超过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,本数据集的空间位置与精度升级计划正在推进中。
平面空间精度:95%置信区间下±1.25米;垂直空间精度:95%置信区间下±0.9米
校准认证(制造商/认证机构):DCS空间服务部(DCS, Spatial Services)
数据集空间参考系统:GDA94
网络服务空间参考系统:EPSG:3857
WGS84等效基准:GDA94
空间覆盖范围:全州范围
数据谱系: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:开放获取
数据质量: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)标准协议
标准与规范:
AS/NZS ISO 19115——ANZLIC元数据规范版本1.1
AS/NZS ISO 19131:2008 地理信息——数据产品规范
符合开放地理空间联盟(OGC)标准的Web地图服务(Web Map Service, WMS)与Web要素服务(Web Feature Service, WFS)
相关空间服务数据集的元数据符合AS/NZS ISO 19115-2、ANZLIC元数据规范v1.1以及ISO 19139标准,并遵循国际测量与制图委员会(Intergovernmental Committee on Surveying and Mapping, ICSM)发布的《数字高程数据指南》
DCS空间服务部:高程数据产品规范与说明(激光雷达)
DCS空间服务部:高程数据产品规范与说明(航空摄影测量)
数据保管方:DCS空间服务部,地址:澳大利亚新南威尔士州巴瑟斯特市Panorama大道346号,邮编2795
联络人:请通过空间服务客户中心联系我们
数据聚合方:DCS空间服务部,地址:澳大利亚新南威尔士州巴瑟斯特市Panorama大道346号,邮编2795
数据分发方:DCS空间服务部,地址:澳大利亚新南威尔士州巴瑟斯特市Panorama大道346号,邮编2795
附加支持信息:数据字典、TRIM编号
提供机构:
data.nsw.gov.au



