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Export Data\u00a0Access API

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We have released a new GDA2020 version of our\u00a0Foundational Spatial Data Framework (FSDF) datasets\u00a0which 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.

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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 -\u00a0NSW Water Theme \u2013 Point GDA2020 Service

Metadata\u00a0Portal Metadata Information

Content TitleAncillary Hydro Point -\u00a0NSW Water Theme - GDA2020 Service
Content TypeHosted Feature Layer
DescriptionNSW 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.\u00a0 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 located
  • Waterfall - 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\u2019s 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\u2019 regular cycle of updating from aerial imagery and elevation data.
Initial Publication Date06/02/2020
Data Currency01/01/3000
Data Update FrequencyOther
Content SourceData provider files
File TypeESRI File Geodatabase (*.gdb)
Attribution\u00a9\n State of New South Wales (Spatial Services, a business unit of the \nDepartment of Customer Service NSW). For current information go to\u00a0spatial.nsw.gov.au
Data Theme, Classification or Relationship to other DatasetsNSW Water Theme\u00a0of 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)GDA94
Spatial Reference System (web service)EPSG:7844
WGS84 Equivalent ToGDA2020
Spatial ExtentFull State
Content LineageFor additional information, please contact us via the\u00a0Spatial Services Customer Hub
Data ClassificationUnclassified
Data Access PolicyOpen
Data QualityFor additional information, please contact us via the\u00a0Spatial Services Customer Hub
Terms and ConditionsCreative Commons
Standard 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.\u00a0\u00a0
Data CustodianDCS Spatial Services
346 Panorama Ave
Bathurst NSW 2795
Point of ContactPlease contact us via the\u00a0Spatial Services Customer Hub

Data AggregatorDCS Spatial Services
346 Panorama Ave
Bathurst NSW 2795
Data DistributorDCS Spatial Services
346 Panorama Ave
Bathurst NSW 2795
Additional Supporting InformationData Dictionaries
TRIM Number
\u00a0\u00a0

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