Product catalogue
GEODATA 9 second DEM and D8: Digital Elevation Model Version 3 and Flow Direction Grid 2008
<p>The GEODATA 9 Second Digital Elevation Model (DEM-9S) Version 3 is a grid of ground level elevation points covering the whole of Australia with a grid spacing of 9 seconds in longitude and latitude (approximately 250 metres) in the GDA94 coordinate system. <p>Version 3 of the DEM-9S was calculated by Version 5.2.2 of the ANUDEM procedure (Hutchinson 2007) from comprehensively revised and augmented national GEODATA-250K topographic source data (AUSLIG 1992, Geoscience Australia 2003, Geoscience Australia 2006) using Version 5.2.2 of the ANUDEM elevation gridding procedure. The source data included revised versions of GEODATA-250K elevation points, streamlines, cliff lines and waterbodies, trigonometric points from the National Geodetic Database and additional elevation and sink point data digitised by the Fenner School from 1:100K source material. Version 5.2.2 of the ANUDEM procedure incorporates major upgrades to the modelling of streamlines, lakes, cliff lines and the coastline. <p>GEODATA 9 Second Flow Direction Grid (D8-9S) has been released for the first time with Version 3. The D8-9S is a corresponding grid describing the principal directions of surface drainage across the whole of Australia. This grid was calculated by the ANUDEM procedure as it derived the DEM-9S. It incorporates the data streamline structure and describes the drainage structure continent-wide. It can be used to delineate streamlines and associated catchment boundaries for the DEM-9S. This is particularly useful in low relief areas where drainage structure is not reliably defined by the DEM-9S elevations alone. <p>The product can be used for applications requiring accurate representation of absolute elevation values. The elevation of source data high points (hills or mountains) is well represented in Version 3. The 1:250,000 source scale of the elevation grid makes the product useful for national, State-wide and regional applications. <p>For more detailed information please refer to the User Guide below. <p>Product Information <p>Coverage: Australia, excluding external territories <p>Currency: 2008 <p>Coordinates: Geographical <p>Datum: Horizontal: GDA94; Vertical: AHD71 <p>Available Formats: GeoTIFF
Simple
Identification info
- Date (Publication)
- 2008-01-01T00:00:00
- Edition
-
3
- Citation identifier
- Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/66006
- Cited responsible party
-
Role Organisation / Individual Name Details Author Hutchinson, M.F.
1 Author Stein, J.L.
2 Author Stein, J.A.
3 Author Anderson, H.
4 Author Tickle, P.K.
5
- Issue identification
-
DEM-9S.v3
- ISBN
-
9781921498152
- Status
- Completed
- Point of contact
-
Role Organisation / Individual Name Details Owner Commonwealth of Australia (Geoscience Australia)
Custodian Commonwealth of Australia (Geoscience Australia)
Voice Point of contact Anderson, H.
Place and Communities Internal Contact
Spatial resolution
Equivalent scale
- Denominator
- 250000
- Topic category
-
- Elevation
Extent
))
- Maintenance and update frequency
- As needed
Resource format
- Title
-
Product data repository: Various Formats
- Website
-
Data Store directory containing the digital product files
Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes
- Keywords
-
-
DEM topographic
-
- Theme
-
-
DEM
-
- Theme
-
-
digital elevation data
-
- Theme
-
-
hydrology
-
- Theme
-
-
dataset
-
- Theme
-
-
marine
-
- Keywords
-
-
AU
-
- Australian and New Zealand Standard Research Classification (ANZSRC)
-
-
Topology
-
- Keywords
-
-
Published_External
-
Resource constraints
- Title
-
Creative Commons Attribution 4.0 International Licence
- Alternate title
-
CC-BY
- Edition
-
4.0
- Access constraints
- License
- Use constraints
- License
Resource constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
- Language
- English
- Character encoding
- UTF8
Distribution Information
- Distributor contact
-
Role Organisation / Individual Name Details Distributor Commonwealth of Australia (Geoscience Australia)
Voice
- OnLine resource
-
Download the User Guide (pdf)
Download the User Guide (pdf)
- Distribution format
-
-
pdf
-
- OnLine resource
-
Download a view of the data (jpg)
Download a view of the data (jpg)
- Distribution format
-
-
jpg
-
- OnLine resource
-
Download the data (622 MB)
Download the data (622 MB)
- Distribution format
-
-
zip
- File decompression technique
-
unzip
-
Resource lineage
- Statement
-
Unknown
- Hierarchy level
- Dataset
- Description
-
Source data not available.
Reference System Information
- Reference system identifier
- EPSG/GDA94 (EPSG:4283)
Metadata constraints
- Title
-
Australian Government Security ClassificationSystem
- Edition date
- 2018-11-01T00:00:00
- Classification
- Unclassified
Metadata
- Metadata identifier
-
urn:uuid/a05f7892-d78f-7506-e044-00144fdd4fa6
- Title
-
GeoNetwork UUID
- Language
- English
- Character encoding
- UTF8
- Contact
-
Role Organisation / Individual Name Details Point of contact Commonwealth of Australia (Geoscience Australia)
Voice
Type of resource
- Resource scope
- Dataset
- Name
-
dataset
Alternative metadata reference
- Title
-
Geoscience Australia - short identifier for metadata record with
uuid
- Citation identifier
- eCatId/66006
- Date info (Revision)
- 2018-04-22T08:41:21
- Date info (Creation)
- 2008-06-05T00:00:00
Metadata standard
- Title
-
AU/NZS ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-1:2014
Metadata standard
- Title
-
ISO 19115-3
- Title
-
Geoscience Australia Community Metadata Profile of ISO 19115-1:2014
- Edition
-
Version 2.0, September 2018
- Citation identifier
- https://pid.geoscience.gov.au/dataset/ga/122551