North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected are processed via standard methods to ensure the response recorded is that due only to the rocks in the ground. The results produce datasets that can be interpreted to reveal the geological structure of the sub-surface. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose.

This North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers is a complete Bouguer anomaly grid for the North Perth Gingin Brook Gravity Survey, 2013 (P201360) survey. This gravity survey was acquired under the project No. 201360 for the geological survey of WA. The grid has a cell size of 0.00363 degrees (approximately 374m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 1236 gravity stations were acquired to produce this grid.

Identification info

Date (Creation): 2020-03-07T00:00:00

Date (Publication): 2020-03-07T00:00:00

Date (Revision): 2021-07-05T06:04:52

Citation identifier: Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/143929

Cited responsible party

Role	Organisation / Individual Name	Details
Author	Geophysical Acquisition & Processing Section

Status: Completed

Point of contact

Role	Organisation / Individual Name	Details
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice

Topic category

Geoscientific information

Extent

Temporal extent

Time period: 2013-04-09T00:00:00 2013-06-06T00:00:00

Maintenance and update frequency: Not planned

Resource format

Title: Product data repository: Various Formats

Website: Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

theme.ANZRC Fields of Research.rdf

EARTH SCIENCES

Data centre

Discipline

Earth sciences

Discipline

geophysics

Feature type

grid

Place

Australia

Place

Project

survey 201360

Theme

GADDS2.0

Theme

gravity

Theme

spherical cap

Theme

Bouguer

Theme

ground digital data

Theme

geophysical survey

Theme

grav

Theme

grid

Theme

raster

Keywords

Published_External

Resource constraints

Title: Creative Commons Attribution 4.0 International Licence

Alternate title: CC-BY

Edition: 4.0

Website

http://creativecommons.org/licenses/

Access constraints: License

Use constraints: License

Other constraints: (c) State of Western Australia (Department of Mines, Industry Regulation and Safety) 2020

Resource constraints

Title: Australian Government Security ClassificationSystem

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Associated resource

Association Type: Operated on by

Title: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers NCSS

Website

https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P201360/P201360-grid-grv_scba.nc/dataset.html

NetCDF Subsetting Service (NCSS) for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Associated resource

Association Type: Operated on by

Title: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers OPeNDAP

Website

https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P201360/P201360-grid-grv_scba.nc.html

OPeNDAP web service for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Associated resource

Association Type: Operated on by

Title: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers WMS

Website

https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P201360/P201360-grid-grv_scba.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Mapping Service (WMS) for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Associated resource

Association Type: Operated on by

Title: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers WCS

Website

https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P201360/P201360-grid-grv_scba.nc?service=WCS&version=1.0.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Language: English

Character encoding: UTF8

Distribution Information

Distributor contact

Role	Organisation / Individual Name	Details
Distributor	Geoscience Australia	Voice

OnLine resource: File available for download in various formats from the GADDS2 portal

The Geophysical Archive Data Delivery System (GADDS2) portal provides HTTP download of geophysics datasets in a number of formats. Point and line datasets are available in NetCDF and ASEG-GDF2. Grid datasets are available in NetCDF, GeoTIFF and ERS.

Distribution format

WWW:LINK-1.0-http--link

Distributor contact

Role	Organisation / Individual Name	Details
Distributor	National Computational Infrastructure	Voice

OnLine resource: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers file download

File download for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Distribution format

WWW:LINK-1.0-http--link

OnLine resource: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers NCSS

NetCDF Subsetting Service (NCSS) for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Distribution format

NCSS

OnLine resource: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers OPeNDAP

OPeNDAP web service for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Distribution format

WWW:LINK-1.0-http--opendap

OnLine resource: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers WMS

OGC Web Mapping Service (WMS) for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Distribution format

OGC:WMS

OnLine resource: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers WCS

OGC Web Coverage Service (WCS) for North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Distribution format

OGC:WCS

Resource lineage

Statement

This North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers is a spherical cap Bouguer anomaly grid for the North Perth Gingin Brook Gravity Survey, 2013 (P201360). This gravity survey was acquired under the project No. 201360 for the geological survey of WA. The grid has a cell size of 0.00363 degrees (approximately 374m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 1236 gravity stations were acquired to produce this grid. Three processes are required to correct the gravity observations for the effects of the surrounding topography: (1) a Bouguer correction (Bullard A), which approximates the topography as an infinite horizontal slab; (2) a correction to that horizontal slab for the curvature of the Earth (Bullard B); and (3) a terrain correction (Bullard C), which accounts for the undulations of the surrounding topography. The Spherical Cap Bouguer gravity anomalies were calculated by applying Bullard A and Bullard B corrections to the free air anomalies using a density of 2670 kg per cubic metre. These data were then gridded using the nearest neighbour algorithm from the INTREPID Geophysics software package. The processed data are checked by GA geophysicists using standard methods for assessing quality to ensure that the final data are fit-for-purpose. The final Spherical cap Bouguer anomalies grid contains data values which account for a correction due to the shape or curvature of the Earth, and provide a more accurate representation of crustal density variations beneath the Earth's surface. Details of the specifications of individual surveys held in the Australian National Gravity Database (ANGD) can be found in the Second Edition of the Index of Gravity Surveys (Wynne and Bacchin, 2009).

References:

Intrepid Geophysics, http://www.intrepid-geophysics.com;

Wynne, P., and Bacchin, M., 2009. Index of Gravity Surveys (Second Edition). Geoscience Australia, Record 2009/07.

Hierarchy level: Dataset

Description: This North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers includes ground gravity point data for the North Perth Gingin Brook Gravity Survey, 2013 (P201360) acquired for the geological survey of WA

Reference System Information

Reference system identifier: EPSG/GDA94 (EPSG:4283)

Metadata constraints

Title: Australian Government Security Classification System

Edition date: 2018-11-01T00:00:00

Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification: Unclassified

Metadata

Metadata identifier

urn:uuid/b809db61-f13f-4f41-9a13-ce4201d65696

Title: GeoNetwork UUID

Language: English

Character encoding: UTF8

Contact

Role	Organisation / Individual Name	Details
Point of contact	Commonwealth of Australia (Geoscience Australia)	Voice
Point of contact	Manager Client Services

Title: Geophysical Data Collection - gravity

Citation identifier: c6b58f54-102c-19e9-e044-00144fdd4fa6

Citation identifier: 74512

Type of resource

Resource scope: Dataset

Name: North Perth Gingin Brook Gravity Spherical Cap Bouger Anomaly 267GU Geodetic p201360.ers

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier: eCatId/143929

Metadata linkage

http://rhe-ecat-prod01.prod.lan:8080/geonetwork/srv/eng/search?uuid=b809db61-f13f-4f41-9a13-ce4201d65696

Date info (Creation): 2021-06-17T00:00:00

Date info (Revision): 2021-06-17T00:00:00

Metadata standard

Title: AU/NZS ISO 19115-1:2014

Metadata standard

Title: ISO 19115-1:2014

Metadata standard

Title: ISO 19115-3

Title: Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition: Version 2.0, September 2018

Citation identifier: https://pid.geoscience.gov.au/dataset/ga/122551

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