NSW Elevation and Depth Theme  - GDA2020 Service

<b><a href="https://portal.spatial.nsw.gov.au/static/exportcontent.html?featureservername=NSW_Elevation_and_Depth_Theme_multiCRS&amp;title=NSW Elevation and Depth Theme multiCRS&amp;wgs84Eqv=GDA2020&amp;url=https://portal.spatial.nsw.gov.au/server/rest/services/NSW_Elevation_and_Depth_Theme_multiCRS/FeatureServer">Export Data</a> <a href="https://portal.spatial.nsw.gov.au/server/rest/services/NSW_Elevation_and_Depth_Theme_multiCRS/FeatureServer">Access API</a> <a href="https://portal.spatial.nsw.gov.au/portal/home/item.html?id=8f7316f5e5b84e8da472e14750d97471?featureservername=NSW_Administrative_Boundaries_Theme&amp;title=NSW Features of Interest Category Theme&amp;url=https://portal.spatial.nsw.gov.au/portal/home/item.html?id=8f7316f5e5b84e8da472e14750d97471">Access 5m DEM Service</a>  <a href="https://portal.spatial.nsw.gov.au/portal/home/item.html?id=437c0697e6524d8ebf10ad0d915bc219?featureservername=NSW_Administrative_Boundaries_Theme&amp;title=NSW Features of Interest Category Theme&amp;url=https://portal.spatial.nsw.gov.au/portal/home/item.html?id=437c0697e6524d8ebf10ad0d915bc219">Access NSW Elevation Service</a> </b><a href="https://elevation.fsdf.org.au/?featureservername=NSW_fsdf&amp;title=https://elevation.fsdf.org.au/ Theme&amp;url=https://elevation.fsdf.org.au/"><b>Access ELVIS Platform</b></a>
<b>NSW Elevation and Depth </b><b>Theme - GDA2020 Service</b>
<b>NEW</b>
We 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.


<b>Metadata</b><b> </b><a href="https://portal.spatial.nsw.gov.au/portal/home/item.html?id=a13166e560804ce99665a294468023d4">Portal Metadata Information</a>
Content TitleNSW Elevation and Depth Theme - GDA2020 ServiceContent TypeHosted Feature LayerDescription
Elevation and Depth is the measurement of the Earth’s surface above or below a vertical datum to obtain the height of the land. Data is collected using a range of sensors including laser, sonar, radar and optical.
Technical methodologies are used to derive spot heights, raster surfaces, contours, triangulated irregular networks and digital elevation models.Datasets that form the Elevation and Depth theme include: <ul><li>Historical Contours (2m Urban, 10m and 20m)</li><li>Current 2m Contours (State wide)</li><li>Spot Heights</li><li>Relative Heights</li><li>Point cloud (LiDAR and Photogrammetrically derived) (available for download from Geoscience Australia ELVIS Platform)</li><li>Digital Elevation Model (available for download from Geoscience    Australia ELVIS Platform) </li></ul>
<b>Elevation Data Sets available from additional services.</b>
<a href="https://elevation.fsdf.org.au/">ELVIS – Elevation and Depth</a>
<b>Point Clouds -</b> The point cloud data set consists of point clouds captured from LiDAR (Light Detection and Ranging) and derived from airborne imagery using photogrammetric techniques. 
Spatial Services Point Cloud data is available for on demand download from Geoscience Australia ELVIS Platform. <b>Digital Elevation Models - </b>Digital Elevation Models (DEM) are derived from Spatial Services’ (SS) point cloud data. The DEM is a bare earth representation of the earth’s surface where all the above ground feature has been removed.Spatial Services have a number of different Digital Elevation Models 
<b>Digital Elevation Model derived from LiDAR -</b> Are 1m or 2m resolution and is not hydrologically enforced
(breaklines) or hydrologically conditioned (identification and analysis of sinks).
<b>Digital Elevation Model Derived Photogrammetry - </b>Data is 5m resolution. Areas of no data caused by steep slopes, shadow and vegetation have been interpolated or filled-in with another data source and will not be as accurate as the bare open ground areas. The data is not hydrologically enforced (breaklines) or hydrologically conditioned (identification and analysis of sinks).
Spatial Services Digital Elevation Model data is available for on demand download from. Geoscience Australia ELVIS Platform as 2km x 2km tiles. 
You can also access the <a href="https://portal.spatial.nsw.gov.au/portal/home/item.html?id=8f7316f5e5b84e8da472e14750d97471">5 Metre Digital Elevation Model Service</a> in the Collaboration Portal.
Elevation and Depth provides an accurate representation of the Earth’s surface enabling evidence-based decision making, 3D modelling, planning and earth surface representation.
Elevation and Depth underpins:
<ul><li>Safe hydrographic</li><li>Aeronautical and road navigation</li><li>Climate science, including climate change adaptation</li><li>Emergency management and natural hazard risk assessment</li><li>Environmental, including water management</li><li>Engineering projects and infrastructure development</li><li>Definition of maritime and administrative boundaries</li><li>Natural resource exploration.</li></ul>

Update frequencies vary for each dataset. Individual current status can be found under each Spatial data profile. 
The objective is to maintain elevation datasets to meet the FDSI requirements of key data users.Current programs include:
<ul><li>Aerial LiDAR capture program across NSW.</li><li>DEM and Point Cloud generation from photogrammetric techniques.</li></ul>

Longer term programs include:
<ul><li>Update of contour data using updated DEM data generated from LiDAR and Photogrammetry.</li><li>Hydrological enforcement using improved surface models.</li></ul>
Initial Publication Date05/02/2020Data Currency01/01/3000Data Update FrequencyDailyContent SourceData provider filesFile TypeESRI File Geodatabase (*.gdb)Attribution© State of New South Wales (Spatial Services, a business unit of the Department of Customer Service NSW). For current information go to <a href="https://www.spatial.nsw.gov.au/">spatial.nsw.gov.au</a>Data Theme, Classification or Relationship to other DatasetsElevation and Depth Theme of the Foundation Spatial Data Framework (FSDF)AccuracyThe dataset maintains a positional relationship to, and alignment with, the drainage and topographic digital datasets. These datasets were captured primarily by digitising from the best available aerial photography at scales and accuracies ranging from 1:500 to 1:250 000 according to the National Mapping Council of Australia, Standards of Map Accuracy (1975). Therefore, the position of the feature instance will be within 0.5mm at map scale for 90% of the well-defined points. That is, 1:500 = 0.25m, 1:2000 = 1m, 1:4000 = 2m, 1:25000 = 12.5m, 1:50000 = 25m and 1:100000 = 50m. A program to upgrade the spatial location and accuracy of data is ongoing.Spatial Reference System (dataset)GDA94Spatial Reference System (web service)OtherWGS84 Equivalent ToGDA2020Spatial ExtentFull stateContent LineagePlease contact us via the <a href="https://www.spatial.nsw.gov.au/contact_us">Spatial Services Customer Hub</a>Data ClassificationUnclassifiedData Access PolicyOpenData QualityPlease contact us via the <a href="https://www.spatial.nsw.gov.au/contact_us">Spatial Services Customer Hub</a>Terms 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 <a href="https://www.spatial.nsw.gov.au/contact_us">Spatial Services Customer Hub</a>Data AggregatorDCS Spatial Services346 Panorama AveBathurst NSW 2795Data DistributorDCS Spatial Services346 Panorama AveBathurst NSW 2795Additional Supporting Information<a href="https://www.spatial.nsw.gov.au/publications/information_sheets/data_dictionaries">Data Dictionaries</a>
<a href="https://www.spatial.nsw.gov.au/__data/assets/pdf_file/0004/218992/Elevation_Products_Data_Specification_and_Description_LID_Oct_2020.pdf#:~:text=DCS%20Spatial%20Services%20-%20LiDAR%20Elevation">DCS Spatial Services: Elevation Data Products Specification and Description (LiDAR)</a>
<a href="https://www.spatial.nsw.gov.au/__data/assets/pdf_file/0005/218993/Elevation_Products_Data_Specification_and_Description_PHO_April_2020.pdf#:~:text=DCS%20Spatial%20Services%20-%20Photogrammetric%20Elevation">DCS Spatial Services: Elevation Data Products Specification and Description (Airborne Photogrammetry)</a>  TRIM Number

Tags: Contours, DEM, DEMS, ELVIS, Export, FeatureServer, GDA2020, Historical Contours, MULTICRS, MultiCRS Service, NSW-Elevation-and-Depth-Theme, NSW-Elevation-and-Depth-Theme-multiCRS, Point Cloud, Relative Heights, Spot Heights, multiCRS
Organization: Spatial Services (DCS)