| Field | Value |
|---|---|
Title |
Hydrogeological Landscapes (HGL) of the Australian Capital Territory 2017 (Third Edition) |
Alternative title(s) |
ACT_HGL_2017 |
Abstract |
This dataset supersedes all earlier versions of 'Hydrogeological Landscapes (HGL) of the Australian Capital Territory'. It incorporates HGL boundary and management area edits based on updated soil landscape mapping for the ACT. The focus of this dataset is the Australian Capital Territory. It contains digital spatial data developed to assist in land management decision making in the ACT. The dataset contains hazard ratings for land salinity, stream salt load and stream EC as well as overall salinity hazard for each HGL unit. Information about landscape functions and appropriate salinity management strategies are also listed. Hyperlinks to full management descriptions for each HGL unit are provided. The Hydrogeological Landscape (HGL) concept provides a structure for understanding how differences in salinity are expressed across the landscape. A HGL spatially differentiates areas with similar salt stores and pathways for salt mobilisation. The process of delineating a HGL relies on the integration of a number of causative factors: geology, soils, slope, regolith thickness, and climate; an understanding of the different modes of salinity development; and the impacts of salinity within landscapes (land salinity, salt load and salt concentration in streams due to salt contributions from base flow and runoff ). Information sources such as soil landscape maps, site characterisation, salinity occurrence maps, hydrogeological data, surface water and groundwater data are incorporated into standardised unit descriptions. Spatial resolution for this product is 1:50 000. |
Resource locator |
|
Data Quality Statement |
Name: Data Quality Statement Protocol: WWW:DOWNLOAD-1.0-http--download Description: Data quality statement for Hydrogeological Landscapes (HGL) of the Australian Capital Territory 2017 (Third Edition) Function: download |
Download Package - ACT HGL 2017 |
Name: Download Package - ACT HGL 2017 Protocol: WWW:DOWNLOAD-1.0-http--download Description: Data package containing ArcGIS spatial data for ACT hydrogeological landscape (HGL) boundaries and salinity management areas, HGL report and individual HGL descriptions, hazard table and information on attributes and data sources. Function: download |
Connect to eSPADE |
Name: Connect to eSPADE Protocol: WWW:DOWNLOAD-1.0-http--download Description: View this dataset and other soil-related datasets on eSPADE soil spatial viewer. Function: download |
ACTmapi - Soil and Hydrogeological Landscapes |
Name: ACTmapi - Soil and Hydrogeological Landscapes Protocol: WWW:DOWNLOAD-1.0-http--download Description: ACTmapi is the ACT Government's interactive mapping service that provides a convenient and fast way to analyse ACT spatial data. This map contains spatial data relating to the soil landscapes and hydrogeological landscapes of the ACT. Function: download |
Unique resource identifier |
|
Code |
35a9b7a8-ca59-40d1-ba5c-6fe66245c35f |
Presentation form |
Map digital |
Edition |
Third |
Dataset language |
English |
Metadata standard |
|
Name |
ISO 19115 |
Edition |
2016 |
Dataset URI |
https://datasets.seed.nsw.gov.au/dataset/35a9b7a8-ca59-40d1-ba5c-6fe66245c35f |
Purpose |
This dataset was generated for the ACT Environment and Planning Directorate as a component of the ACT Hydrogeological Landscapes (HGL) Framework project. The focus of this project was to assess impacts of climate change on wetlands and on land degradation issues related to salinity and erosion in the ACT. |
Status |
Completed |
Spatial representation |
|
Type |
vector |
Geometric Object Type |
complex |
Spatial reference system |
|
Code identifying the spatial reference system |
4283 |
Equivalent scale |
1:None |
Additional information source |
Source datasets: ACT Environment and Planning Directorate: Geoscience Australia: Land and Property Information: |
| Field | Value |
|---|---|
Topic category |
| Field | Value |
|---|---|
Keyword set |
|
keyword value |
WATER-Salinity GEOSCIENCES-Geology GEOSCIENCES-Hydrogeology GEOSCIENCES-Geomorphology HAZARDS SOIL LAND-Use |
Originating controlled vocabulary |
|
Title |
ANZLIC Search Words |
Reference date |
2008-05-16 |
Geographic location |
|
West bounding longitude |
148.738 |
East bounding longitude |
149.414 |
North bounding latitude |
-35.933 |
South bounding latitude |
-35.111 |
NSW Place Name |
Australian Capital Territory |
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 |
2017-04-01 |
End position |
N/A |
Dataset reference date |
|
Resource maintenance |
|
Maintenance and update frequency |
Irregular |
Contact info | |
Contact position |
Data Broker |
Organisation name |
NSW Department of Climate Change, Energy, the Environment and Water |
Telephone number |
131555 |
Email address |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
| Field | Value |
|---|---|
Lineage |
The hydrogeological landscape (HGL) mapping used the following base data for delineation of map units: published 1:1 million, 1:250 000 and 1:100 000 geological mapping data (polygon); published 1:100 000 soil landscape data (polygon); soil profile data from the OEH SALIS database (point); and Digital Elevation Model (DEM) for the ACT and derivative products taken from the 30 and 10 metre DEM. The published and reconnaissance level mapping were combined and rationalised to create complete hydrogeological landscape classification (map unit) coverage for the entire ACT. |
| Field | Value |
|---|---|
Limitations on public access |
|
| Field | Value |
|---|---|
Scope |
dataset |
DQ Topological Consistency |
|
Effective date |
2017-05-19 |
Explanation |
All polygons in the coverage are topologically correct and all polygons have been attributed. Data has been visually checked at applicable scales. |
DQ Absolute External Positional Accuracy |
|
Effective date |
2017-05-19 |
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 |
2017-05-19 |
Explanation |
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. |
| 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 |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
| 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 |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
Metadata date |
2024-02-26T13:37:14.951299 |
Metadata language |
|