PortalGeonetwork
NSW Geophysics Isostatic Bouger Gravity
This dataset is part of the Geological Survey NSW Geophysics dataset series.
Isostatic spherical-cap Bouguer gravity data. The image is a pseudocolour layer with a histogram-equalised colour stretch. Cooler colours indicate lower values and warmer colours represent increasingly higher Bouguer gravity values. The image shows the Earth’s gravity response to variations in the crustal rock density, after removal of broad gravity highs and lows caused by changes in crustal thickness. Gravity data are presented after removal of latitude and 'free-air' corrections, Bouguer corrections (assuming a crustal density of 2.67 T/m3) and subtraction of gravity due to a model of the isostatic response to changes in elevation. The hue-saturation-intensity image was prepared by applying a 3x3 sun filter using an algorithm developed by NSW Trade & Investment. Sun illumination has been applied at 65 degrees elevation and 90 degrees azimuth.
Simple
Identification info
- Status
Point of contact
- Spatial representation type
- Topic category
-
- Geoscientific information
Extent
Extent
))
- Maintenance and update frequency
- As needed
- Keywords (Theme)
-
- WCS
- Gravity
- Keywords (Place)
-
- Earth Science
- Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research
-
- Earth Sciences
Resource constraints
- Access constraints
- Other restrictions
- Other constraints
- CC-BY-4.0 International Attribution
Resource constraints
- Use limitation
- https://creativecommons.org/licenses/by/4.0
- Access constraints
- Licence Unrestricted
- Use constraints
- Licence Unrestricted
- Language
- English
- Character encoding
- UTF8
Distribution Information
- OnLine resource
-
geophys:IsoGrav
NSW Geophysics Isostatic Bouger Gravity
Resource lineage
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG:4326
Reference System Information
- Reference system identifier
- CRS:84
Metadata
- Metadata identifier
- urn:uuid/e670bbac97605bf170728b15877114827e1cf22b
- Language
- English
- Character encoding
- anyValidURI
Point of contact
Point of contact
Type of resource
- Resource scope
- Dataset
- Metadata linkage
- https://portal.auscope.org.au/geonetwork/srv/eng/catalog.search#/metadata/e670bbac97605bf170728b15877114827e1cf22b
- Date info (Revision)
- 2023-08-18T07:39:13
- Date info (Creation)
- 2022-12-16T05:04:22
Metadata standard
- Title
- ISO 19115-3
Overviews
Spatial extent
Provided by
