@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix xsd: . a dcat:Dataset ; dct:description """

NSW Water Theme multiCRS

MultiCRS service - supporting requests in multiple Coordinate Reference Systems - Information Sheet

A new series of ‘multiCRS’ web services have been published to support GDA2020. These new ‘multiCRS’ services:

· have a spatial reference of GDA2020

· support alignment with GDA2020, GDA94 or [WGS 84-aligned-to-GDA2020] GIS environments,
using built-in server-side transformations:

o GDA94 < NTv2-CPD > GDA2020

o GDA94 < NTv2-CPD > WGS 84 aligned to GDA2020

o GDA2020 < NULL > WGS 84 aligned to GDA2020

Note: ESRI software will automatically align by transforming from the sourceSpatialReference (GDA94).
Other software may need to set client-side transformations from the SpatialReference (GDA2020).

Note: Client-side transformation(s) can be used to over-ride these default transformations.

The original [WGS 84-aligned-to-GDA2020] is still available, without the ‘multiCRS’ suffix. In due course, and allowing time for user feedback and testing, it is intended that the original service name will adopt this new multiCRS functionally.

The Water theme is based on hydrology which is the study of the movement, distribution and quality of water. This includes the hydrologic cycles, water resources and environmental watershed sustainability.

Hydrology includes surface hydrology, hydrogeology, drainage basin management and water quality where water plays the central role.

Water (surface water and groundwater) is concerned with information as aligned with the definitions under the Water Act 2007.

This theme includes Hydrology elements which are described as:

• Surface Water - Water in a watercourse, lake or wetland or any water flowing over or lying on land, either after having precipitated naturally after rain or having risen to the surface naturally from underground.

• Groundwater - Water occurring at a place below ground that has been pumped, diverted or released to that place for the purpose of being stored there. Does not include water held in underground tanks, pipes or other works.

Data in Water Theme includes:

Ancillary Hydro Point

• Bore

• Lock

• Rapids

• Spring

• Tidal Limit Marker

• Waterfall

• Dissipation point

• Regulator

• River Gauge

• Barriers

• Sink

Coastline

• Mean High Water Mark

• Mean Low Water Mark

Fuzzy Extent Water Area

• Bay-like

• River-like Area

• Sea-like

Fuzzy Extent Water Line

• River-like

Hydro Area

• Watercourse: Natural Waterbody, Canal-Drain

• Water body Area: Man-made Waterbody, Natural Waterbody

Hydro Line

• Natural Watercourse Area

• Canal Drain

• Spillway

• Race

• Tunnel-Siphen

• Connector

Hydro Point

• Natural Made Waterbody

• Man Made Waterbody

Named Water Course

• Named Water Course

Water security is one of Australia’s major challenges. The benefits of using these nationally consistent data products include analysis, improved operational practises and policy decision making.

Metadata

Type	Esri Feature Service
Update Frequency	As required
Contact Details	Contact us via the Spatial Services Customer Hub
Relationship to Themes and Datasets	NSW Water Theme of the Foundation Spatial Data Framework (FSDF)
Accuracy	The dataset maintains a positional relationship to, and alignment with, the Lot and Property digital datasets. This dataset was captured by digitising the best available cadastral mapping at a variety of 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 of positional upgrade (accuracy improvement) is currently underway.
Source Spatial Reference (dataset)	Geocentric Datum of Australia 1994 (GDA94), Australian Height Datum (AHD)
Spatial Reference     (web service)	Geocentric Datum of Australia 2020 (GDA2020), Geographic 2D
WGS 84 Equivalent To	GDA2020
Spatial Extent	Full State
Standards and Specifications	Open 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.
Distributors	Service Delivery, DCS Spatial Services 346 Panorama Ave Bathurst NSW 2795
Dataset Producers and Contributors	Administrative Spatial Programs, DCS Spatial Services 346 Panorama Ave Bathurst NSW 2795

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