Webb Gravity Survey (P200660), Bouguer 1VD grid

Gravity data measures 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 Webb Gravity Survey (P200660), Bouguer 1VD grid is a first vertical derivative of the Bouguer anomaly grid for the Webb Gravity Survey (P200660) survey. This gravity survey was acquired under the project No. 200660 for the geological survey of WA. The grid has a cell size of 0.0047 degrees (approximately 502m). A total of 4092 gravity stations were acquired to produce the original grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid.

Identification info

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

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

Date (Revision): 2021-07-05T06:04:58

Citation identifier: Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/144013

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: 2006-08-13T00:00:00 2006-09-13T00:00:00

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 200660

Theme

GADDS2.0

Theme

gravity

Theme

Bouguer

Theme

infinite slab

Theme

first vertical derivative

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: Webb Gravity Survey (P200660), Bouguer 1VD grid NCSS

Website

https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P200660/P200660-grid-grv_isba_1vd.nc/dataset.html

NetCDF Subsetting Service (NCSS) for Webb Gravity Survey (P200660), Bouguer 1VD grid

Associated resource

Association Type: Operated on by

Title: Webb Gravity Survey (P200660), Bouguer 1VD grid OPeNDAP

Website

https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P200660/P200660-grid-grv_isba_1vd.nc.html

OPeNDAP web service for Webb Gravity Survey (P200660), Bouguer 1VD grid

Associated resource

Association Type: Operated on by

Title: Webb Gravity Survey (P200660), Bouguer 1VD grid WMS

Website

https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P200660/P200660-grid-grv_isba_1vd.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Mapping Service (WMS) for Webb Gravity Survey (P200660), Bouguer 1VD grid

Associated resource

Association Type: Operated on by

Title: Webb Gravity Survey (P200660), Bouguer 1VD grid WCS

Website

https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/ground_gravity/WA/grid/P200660/P200660-grid-grv_isba_1vd.nc?service=WCS&version=1.0.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for Webb Gravity Survey (P200660), Bouguer 1VD grid

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: Webb Gravity Survey (P200660), Bouguer 1VD grid file download

File download for Webb Gravity Survey (P200660), Bouguer 1VD grid

Distribution format

WWW:LINK-1.0-http--link

OnLine resource: Webb Gravity Survey (P200660), Bouguer 1VD grid NCSS

NetCDF Subsetting Service (NCSS) for Webb Gravity Survey (P200660), Bouguer 1VD grid

Distribution format

NCSS

OnLine resource: Webb Gravity Survey (P200660), Bouguer 1VD grid OPeNDAP

OPeNDAP web service for Webb Gravity Survey (P200660), Bouguer 1VD grid

Distribution format

WWW:LINK-1.0-http--opendap

OnLine resource: Webb Gravity Survey (P200660), Bouguer 1VD grid WMS

OGC Web Mapping Service (WMS) for Webb Gravity Survey (P200660), Bouguer 1VD grid

Distribution format

OGC:WMS

OnLine resource: Webb Gravity Survey (P200660), Bouguer 1VD grid WCS

OGC Web Coverage Service (WCS) for Webb Gravity Survey (P200660), Bouguer 1VD grid

Distribution format

OGC:WCS

Resource lineage

Statement

This Webb Gravity Survey (P200660), Bouguer 1VD grid is a first vertical derivative grid of the Bouguer anomaly for the Webb Gravity Survey (P200660) survey. This gravity survey was acquired under the project No. 200660 for the geological survey of WA. The grid has a cell size of 0.0047 degrees (approximately 502m). A first vertical derivative was calculated by applying a fast Fourier transform (FFT) process to the Bouguer gravity grid of the Webb Gravity Survey (P200660) survey to produce this grid. This grid was calculated using an 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 first vertical derivative grid is very helpful for the enhancement of near surface features and structural features such as faults and dykes. 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 Webb Gravity Survey (P200660), Bouguer 1VD grid includes ground gravity point data for the Webb Gravity Survey (P200660) survey 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/2e1c4cfb-947a-4ff6-bfbe-c825b953d303

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: Webb Gravity Survey (P200660), Bouguer 1VD grid

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier: eCatId/144013

Metadata linkage

http://rhe-ecat-prod01.prod.lan:8080/geonetwork/srv/eng/search?uuid=2e1c4cfb-947a-4ff6-bfbe-c825b953d303

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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Read here the full details and access to the data.

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Reference System Information

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