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.
Google map showing geographic bounding box with values North bound -8.0 East bound 172.0 West bound 102.0 South bound -52.0

Product Type/Sub Type

dataset

Constraints

Creative Commons Attribution 4.0 International Licence

IP Owner

Commonwealth of Australia (Geoscience Australia)

Author(s)

Date (publication)

2002-01-01T00:00:00

Product Type

dataset

Topic Category

geoscientificInformation

GA Catalogue Number

39093 Product http://www.ga.gov.au/metadata-gateway/metadata/record/39093/

Keywords

GIS Dataset
National
geophysics
magnetics
National dataset
dataset
Earth Sciences

Resource Language

English

Resource Character Set

utf8

Resource Security Classification

unclassified

Geographic Extent

North bound
-8.0
East bound
172.0
West bound
102.0
South bound
-52.0

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.

Digital Transfer Options

onLine

Distributor

Role
distributor
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address

Source Description

Source data not available.

Metadata File Identifier

a05f7892-b68a-7506-e044-00144fdd4fa6

Metadata Standard Name

ANZLIC Metadata Profile: An Australian/New Zealand Profile of AS/NZS ISO 19115:2005, Geographic information - Metadata

Metadata Standard Version

1.1

METADATA SECURITY CLASSIFICATION

unclassified

Metadata Contact

Role
pointOfContact
Organisation Name
Commonwealth of Australia (Geoscience Australia)
City
Canberra
Administrative Area
ACT
Postal Code
2601
Country
Australia
Email Address