Authors / CoAuthors
Kilgour, B. | Hatch, L.
Abstract
These images are derived from the January 2002 edition of the "Magnetic Anomaly Grid of the Australian Region" (GEOCAT Record : 38820). That grid is the first integrated onshore/offshore magnetic anomaly grid for the complete Australian margin extending across 8S - 52S, 106E - 172E. The grid cell size is 0.01 degree (approx. 1 km). Earlier releases were restricted to portions of NW and SW Australia.
Product Type
dataset
eCat Id
39093
Contact for the resource
Custodian
Owner
Custodian
Cnr Jerrabomberra Ave and Hindmarsh Dr GPO Box 378
Canberra
ACT
2601
Australia
Keywords
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- GIS DatasetNational
- ( Theme )
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- geophysics
- ( Theme )
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- magnetics
- ( Theme )
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- National dataset
- ( Theme )
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- dataset
- Australian and New Zealand Standard Research Classification (ANZSRC)
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- Earth Sciences
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- Published_Internal
Publication Date
2002-01-01T00:00:00
Creation Date
Security Constraints
Legal Constraints
Status
Purpose
Maintenance Information
asNeeded
Topic Category
geoscientificInformation
Series Information
Lineage
Using an ER Mapper algorithm associated with the "Magnetic Anomaly Grid of the Australian Region" (GEOMET Record : 4321) a colour geo-referenced TIF with a cell size of 0.01 degrees was generated using the elevation palette and manipulated so as to appear to be illuminated from the north-east. A compression ratio of 27 was used, utilising ER Mapper's ECW compression algorithm, to compress the TIF image to an adequate size for provision over the Internet. The geo-referenced TIF was then reprojected to Lambert Conformal Conic projection, with a cell size of approximately 1000 metres using ArcInfo. Georeferenced TIF images and ECW compressed images were then generated for this projection in the same process outlined above.
Parent Information
Extents
[-52.0, -8.0, 102.0, 172.0]
Reference System
Spatial Resolution
Service Information
Associations
Source Information
Source data not available.