Data

Murchison Gravity Bouguer Anomaly

Geoscience Australia
Geophysical Acquisition & Processing Section
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://pid.geoscience.gov.au/dataset/ga/144009&rft.title=Murchison Gravity Bouguer Anomaly&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/144009&rft.description=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 Murchison Gravity Bouguer Anomaly is a complete Bouguer anomaly grid for the Murchison, WA Gravity Survey 2007 (P200662). This gravity survey was acquired under the project No. 200662 for the geological survey of WA. The grid has a cell size of 0.005 degrees (approximately 525m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 3556 gravity stations were acquired to produce this grid.Maintenance and Update Frequency: notPlannedStatement: This Murchison Gravity Bouguer Anomaly is a simple Bouguer anomaly grid for the Murchison, WA Gravity Survey 2007 (P200662). This gravity survey was acquired under the project No. 200662 for the geological survey of WA. The grid has a cell size of 0.005 degrees (approximately 525m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 3556 gravity stations were acquired to produce this grid. The Bouguer gravity anomalies were calculated by applying a Bouguer correction with a density of 2670 kg per cubic meter to the point data of Murchison, WA Gravity Survey 2007 (P200662). The data were then gridded using a gridding technique provided by 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. 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.&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=117.4922; southlimit=-27.5009; eastlimit=119.0022; northlimit=-25.9959; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=117.4922; southlimit=-27.5009; eastlimit=119.0022; northlimit=-25.9959; projection=GDA94 (EPSG:4283)&rft_rights=&rft_rights=Creative Commons Attribution 4.0 International Licence&rft_rights=CC-BY&rft_rights=4.0&rft_rights=http://creativecommons.org/licenses/&rft_rights=(c) State of Western Australia (Department of Mines, Industry Regulation and Safety) 2020&rft_rights=Australian Government Security ClassificationSystem&rft_rights=https://www.protectivesecurity.gov.au/Pages/default.aspx&rft_rights=WWW:LINK-1.0-http--link&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=EARTH SCIENCES&rft_subject=NCI&rft_subject=Earth sciences&rft_subject=geophysics&rft_subject=grid&rft_subject=Australia&rft_subject=WA&rft_subject=survey 200662&rft_subject=GADDS2.0&rft_subject=gravity&rft_subject=Bouguer&rft_subject=infinite slab&rft_subject=simple Bouguer&rft_subject=ground digital data&rft_subject=geophysical survey&rft_subject=grav&rft_subject=raster&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/by/4.0

Creative Commons Attribution 4.0 International Licence

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4.0

http://creativecommons.org/licenses/

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

Australian Government Security ClassificationSystem

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

WWW:LINK-1.0-http--link

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Brief description

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 Murchison Gravity Bouguer Anomaly is a complete Bouguer anomaly grid for the Murchison, WA Gravity Survey 2007 (P200662). This gravity survey was acquired under the project No. 200662 for the geological survey of WA. The grid has a cell size of 0.005 degrees (approximately 525m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 3556 gravity stations were acquired to produce this grid.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: This Murchison Gravity Bouguer Anomaly is a simple Bouguer anomaly grid for the Murchison, WA Gravity Survey 2007 (P200662). This gravity survey was acquired under the project No. 200662 for the geological survey of WA. The grid has a cell size of 0.005 degrees (approximately 525m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 3556 gravity stations were acquired to produce this grid. The Bouguer gravity anomalies were calculated by applying a Bouguer correction with a density of 2670 kg per cubic meter to the point data of Murchison, WA Gravity Survey 2007 (P200662). The data were then gridded using a gridding technique provided by 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. 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.

Created: 07 03 2020

Issued: 07 03 2020

Modified: 05 07 2021

Data time period: 10 02 2007 to 17 03 2007

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119.0022,-25.9959 119.0022,-27.5009 117.4922,-27.5009 117.4922,-25.9959 119.0022,-25.9959

118.2472,-26.7484

text: westlimit=117.4922; southlimit=-27.5009; eastlimit=119.0022; northlimit=-25.9959; projection=GDA94 (EPSG:4283)

Subjects
Australia | Bouguer | EARTH SCIENCES | Earth sciences | GADDS2.0 | NCI | Published_External | WA | geophysical survey | geophysics | geoscientificInformation | grav | gravity | grid | ground digital data | infinite slab | raster | simple Bouguer | survey 200662 |

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Other Information
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. (File available for download in various formats from the GADDS2 portal)

uri : https://portal.ga.gov.au/persona/gadds

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