NSW Geoscience Metadata
NSW Bouguer gravity first vertical derivative (1VD)
Greyscale image of first vertical derivative (1VD) of Bouguer gravity. Darker tones indicate lower values and lighter tones represent higher values. Bouguer gravity compensates for variations in latitude, 'free-air' elevation and Bouguer correction (assuming a crustal density of 2.67 T/m³).
Attention: Please ensure your version of the NSW gravity merges contains the date ‘2024-10-30’ in their filename. An update was made to remedy location errors in the initial release. Apologies for any inconvenience.
Simple
Identification info
- Date (Revision)
- 2025-05-09
- Status
- Completed
- Topic category
-
- Geoscientific information
N
S
E
W
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- Keywords (Theme)
-
- Geophysics
- Gravity
- Isostatic Bouger
Distribution Information
- Distribution format
-
- OnLine resource
- Download ERS file (Air Only)
- OnLine resource
- Download TIF file (Air only)
Resource lineage
- Statement
- This edition of the NSW statewide gravity merge is a compilation of best available airborne and ground data, comprising roughly 80% airborne and 20% ground. AIR1027 and AIR1030 comprise the airborne data, with the ground data clipped from Geoscience Australia’s ANGD dataset. These data were gridded with a cell size of 500x500 metres before being corrected for isostasy following the method outlined in Spence and Musgrave (2006). The units for the data are μms⁻².
- Hierarchy level
- Dataset
Reference System Information
- Reference system identifier
- EPSG:4326
Reference System Information
- Reference system identifier
- CRS:84
Metadata
- Metadata identifier
- urn:uuid/e3a1be3c-d7ac-431f-a7f3-f33217180bb9
- Language
- English
- Character encoding
- UTF8
Type of resource
- Resource scope
- Dataset
- Metadata linkage
- https://geonetwork.geoscience.nsw.gov.au/geonetwork/srv/api/records/e3a1be3c-d7ac-431f-a7f3-f33217180bb9
- Date info (Revision)
- 2025-05-09T09:11:47
- Date info (Creation)
- 2020-09-11T15:02:05
Metadata standard
- Title
- ISO 19115:2003/19139
- Edition
- 1.0
Overviews
Bouguer_gravity_first_vertical_derivative_1vd.png
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available