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
Role Organisation Electronic mail address
Point of contact

Geological Survey of NSW

minview.information@geoscience.nsw.gov.au

Spatial representation type
Topic category
  • Geoscientific information

Extent

Extent

N
S
E
W




Maintenance and update frequency
As needed
Theme

  • WCS

  • Gravity

Place

  • World

Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research

  • Earth Sciences

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
Contact
Role Organisation Electronic mail address
Point of contact

Geological Survey of NSW

minview.information@geoscience.nsw.gov.au

Point of contact

Type of resource

Resource type
Dataset

Metadata linkage

Function
Complete Metadata
Metadata linkage

http://portal.auscope.org/geonetwork/srv/api/records/177abe2c-9efe-4fd2-a66e-0f1e099c3047

Date info (Revision)
2023-08-18T07:56:01
Date info (Creation)
2025-09-03T10:15:04

Metadata standard

Title

ISO 19115-3

 
 

Spatial extent

Keywords

Gravity WCS
Australian and New Zealand Standard Research Classification (ANZSRC): Fields of Research

Earth Sciences


Provided by

Access to the catalogue