NSW Elevation and Depth Theme - 10M Historical Contours
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Access APINSW Elevation and Depth Theme – 10m Historical ContoursPlease 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 - 10M Historical ContoursContent TypeHosted Feature LayerDescription10m Historical Contours are virtual imaginary lines on the ground, joining points of an equal elevation.10m Historical Contours were captured in a verity of methods and scales, initially captured at 1:25 000, 1:50 000 and 1:100 000 scales from stereoscopic aerial photography or Ortho image trace methods.These contours were digitised into the vector data product over a number of years with the processing being completed 2003 through to 2017.Feature reliability date of the original contours rage from 1971 through to 2008.Contours are virtual imaginary lines on the ground, joining points of an equal elevation in relation to the Australian Height Datum (AHD). A contour can be a standard contour, depression contour or an ancillary contour. It is a part of the NSW Elevation and Depth Theme.Elevation and Depth provides an authoritative digital representation of the Earth’s surface enabling evidence based decision making, policy development 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 boundariesDefense and national securityNatural resource exploration and exploitation Initial Publication Date03/02/2020Data 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\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 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
APINSW高程与深度主题数据集——10米历史等高线
请注意
世界大地测量系统1984(World Geodetic System 1984, WGS 84)服务与澳大利亚地心大地基准1994(Geocentric Datum of Australia 1994, GDA94)对齐
本数据集的空间参考为[WGS 84 ≈ GDA94],在澳大利亚地心大地基准2020(Geocentric Datum of Australia 2020, GDA2020)环境中查看时可能出现对齐偏差。另有带"multiCRS"后缀的同类服务,可支持GDA2020、GDA94以及WGS 84 ≈ GDA2020环境。
在适当时候,在收集用户反馈并完成测试后,原服务将新增multiCRS功能。
元数据门户元数据信息
内容标题:NSW高程与深度主题——10米历史等高线
内容类型:托管要素图层
数据集描述:
10米历史等高线是地面上连接等高程点的虚拟假想线条。
10米历史等高线通过多种方法与比例尺采集,最初采用立体航空摄影或正射影像勾绘技术,按1:25000、1:50000及1:100000比例尺进行采集。
上述等高线历经多年数字化为矢量数据产品,处理工作于2003年至2017年间完成。
原始等高线的要素可靠日期范围为1971年至2008年。
等高线是地面上连接与澳大利亚高程基准(Australian Height Datum, AHD)等高程点的虚拟假想线条,可分为标准等高线、洼地等高线与辅助等高线三类,属于新南威尔士州(NSW)高程与深度主题数据集的组成部分。
高程与深度主题提供地球表面的权威数字化表征,可支撑循证决策、政策制定,并为其他基础数据集提供核心参考依据。该主题支撑以下应用场景:
- 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
- 环境管理,包括水资源管理
- 海域与行政边界界定
- 国防与国家安全
- 自然资源勘探与开发
首次发布日期:2020年2月3日
数据现势性: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(*.gdb)
数据归属:© 新南威尔士州政府(空间服务部,新南威尔士州客户服务厅业务单元)。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)下的NSW高程与深度主题
精度:
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》中规定的多种比例尺与精度等级的最优数据源采集,比例尺范围为1:500至1:250000。因此,90%的明确要素点的位置误差在对应地图比例尺的0.5mm范围内,即:1:500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。当前正在实施一项程序,以提升数据的空间位置与精度。
数据集空间参考系:GDA94
Web服务空间参考系:EPSG:3857
等效WGS84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联络中心联系我们。
数据分类:非机密
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联络中心联系我们。
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(Open Geospatial Consortium, 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,同时遵循政府间测绘委员会(Intergovernmental Committee on Surveying and Mapping, ICSM)《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)》及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:如需联系,请通过空间服务客户联络中心办理。
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



