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Identification

Field Value

Title

Residual Hydrogeological Landscapes of the Central West CMA Catchment: Nov 2020 (First Edition)

Alternative title(s)

Residual Central West CMA HGL - 2020

Abstract

This dataset contains the Central West CMA HGLs that were not included in the Hydrogeological Landscapes of the Central West Local Land Services Region: Nov 2020 dataset. The CMA boundary was catchment-based, whereas the new LLS boundary is cadastre-based. The original CW CMA HGL assessments were undertaken between 2008 and 2012.

The Hydrogeological Landscape (HGL) concept provides a structure for the understanding of how salinity manifests itself in the landscape and how differences in salinity are expressed across the landscape. A HGL spatially defines areas of similar salt stores and pathways for salt mobilisation. The process of HGL determination relies on the integration of a number of factors: geology, soils, slope, regolith depth, and climate; an understanding of the differences in salinity development; and the impacts (land salinity/salt load/water electrical conductivity) in landscapes. Information sources such as soils maps, site characterisation, salinity site mapping, hydrogeological conditions and surface and groundwater data are combined to develop standard templates for each HGL.

The focus of this dataset is the old Central West CMA catchment area that falls outside the new CW LLS region. The data package comprises the relevant HGL unit descriptions; digital spatial data; and legacy documents relating to the original CW CMA HGL assessments.

Spatial resolution for this product is 1:250 000.

Resource locator

Data Quality Statement

Name: Data Quality Statement

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Data quality statement for Residual Hydrogeological Landscapes of the Central West CMA Catchment: Nov 2020 (First Edition)

Function: download

Download Package

Name: Download Package

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

This data package comprises relevant Central West CMA HGL descriptions; attributed boundary geodatabase and shapefile; and legacy documents relating to the original CW CMA HGL assessments.

Function: download

Connect to eSPADE

Name: Connect to eSPADE

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

View HGL and other soil-related datasets on eSPADE soil spatial viewer.

Function: download

Unique resource identifier

Code

97ea46f8-ec60-45eb-92fe-9b38714cd1e6

Presentation form

Map digital

Edition

First

Dataset language

English

Metadata standard

Name

ISO 19115

Edition

2016

Dataset URI

https://datasets.seed.nsw.gov.au/dataset/97ea46f8-ec60-45eb-92fe-9b38714cd1e6

Purpose

This data package was generated to capture those Central West HGLs that were not incorporated into the Hydrogeological Landscapes of the Central West Local Land Services Region: Nov 2020 dataset.

Status

Completed

Spatial representation

Type

vector

Spatial reference system

Code identifying the spatial reference system

4283

Equivalent scale

1:None

Additional information source

Source datasets: Hydrogeological-Landscape Systems over the Central West catchment, NSW (OEH); Hydrogeological Landscapes for the Central West Catchment Management Authority Western Study Area: May 2013 (Second Edition); GEODATA TOPO 250K Series 3 (Geoscience Australia); 1 second SRTM Derived Digital Elevation Model (Geoscience Australia); Surface Geology of Australia 1:1 million scale, New South Wales – 2nd edition (Geoscience Australia); New South Wales DTDB Landform Theme 50K Digital Terrain Models (Land and Property Information); New South Wales Digital Topographic Database DTDB (Land and Property Information).

Classification of spatial data and services

Field Value

Topic category

Keywords

Field Value

Keyword set

keyword value

WATER-Salinity

SOIL

LAND-Use

HAZARDS

GEOSCIENCES-Geomorphology

Originating controlled vocabulary

Title

ANZLIC Search Words

Reference date

2008-05-16

Geographic location

West bounding longitude

146.25

East bounding longitude

150.4

North bounding latitude

-33.95

South bounding latitude

-30.1

NSW Place Name

Central West CMA region

Vertical extent information

Minimum value

-100

Maximum value

2228

Coordinate reference system

Authority code

urn:ogc:def:cs:EPSG::

Code identifying the coordinate reference system

5711

Temporal extent

Begin position

2008-10-01

End position

N/A

Dataset reference date

Resource maintenance

Maintenance and update frequency

Not planned

Contact info

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Quality and validity

Field Value

Lineage

The hydrogeological landscape (HGL) mapping used the following base data for delineation of map units: published 1:1 million and 1:250 000 geological mapping data (polygon); published 1:250 000 soil landscape data (polygon); soil profile data from the OEH SALIS database (point); and Digital Elevation Model (DEM) for Central West CMA and derivative products taken from the 25 metre DEM. The published and reconnaissance level mapping were combined and rationalised to create complete hydrogeological landscape classification (map unit) coverage for the entire Western Central West study area.

Constraints related to access and use

Field Value

Limitations on public access

Data Quality

Field Value

Scope

dataset

DQ Completeness Commission

Effective date

2024-06-28

Explanation

Spatial data capture is complete for presentation and usage at 1:250 000 only.

DQ Topological Consistency

Effective date

2024-06-28

Explanation

The accuracy of the coverage varies across the mapping area as map polygon boundaries were derived from different sources. HGL boundaries derived from published and draft 1:100 000 scale mapping are generally accurate to 100 m. HGL boundaries derived from published 1:250 000 scale mapping are approximate and generally accurate to 250 m.

DQ Non Quantitative Attribute Correctness

Effective date

2024-06-28

Explanation

It should be noted that the attributes for HGLs west of the Newell Highway are more recent and have undergone more intense investigation than those defined on the eastern side of the Newell Highway. Care should be exercised when making comparisons between the two areas. All polygons are labelled with a hydrogeological landscape unit tag, and attributed with information relevant to salinity management. Attributes were checked as part of routine GIS capture quality assurance procedures, including a visual check of polygon tags against field data. During the fieldwork phase, regular meetings were held to discuss and review methods, processes and consistency in landscape interpretation and documentation.

Responsible organisations

Field Value

Responsible party

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata on metadata

Field Value

Metadata point of contact

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata date

2024-07-03T04:23:32.031752

Metadata language