Data

Mt Isa E Gravity Bouguer Anomaly geodetic

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/144015&rft.title=Mt Isa E Gravity Bouguer Anomaly geodetic&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/144015&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 Mt Isa E Gravity Bouguer Anomaly geodetic is a complete Bouguer anomaly grid for the Mt Isa Area E Gravity Survey (P200644). This gravity survey was acquired under the project No. 200644 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 802m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6123 gravity stations were acquired to produce this grid.Maintenance and Update Frequency: notPlannedStatement: This Mt Isa E Gravity Bouguer Anomaly geodetic is a simple Bouguer anomaly grid for the Mt Isa Area E Gravity Survey (P200644). This gravity survey was acquired under the project No. 200644 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 802m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6123 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 Mt Isa Area E Gravity Survey (P200644). 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=140.953; southlimit=-24.029; eastlimit=144.1105; northlimit=-19.9715; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=140.953; southlimit=-24.029; eastlimit=144.1105; northlimit=-19.9715; 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) Geological Survey of Queensland 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=QLD&rft_subject=survey 200644&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

CC-BY

4.0

http://creativecommons.org/licenses/

(c) Geological Survey of Queensland 2020

Australian Government Security ClassificationSystem

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

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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 Mt Isa E Gravity Bouguer Anomaly geodetic is a complete Bouguer anomaly grid for the Mt Isa Area E Gravity Survey (P200644). This gravity survey was acquired under the project No. 200644 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 802m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6123 gravity stations were acquired to produce this grid.

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Maintenance and Update Frequency: notPlanned
Statement: This Mt Isa E Gravity Bouguer Anomaly geodetic is a simple Bouguer anomaly grid for the Mt Isa Area E Gravity Survey (P200644). This gravity survey was acquired under the project No. 200644 for the geological survey of QLD. The grid has a cell size of 0.0075 degrees (approximately 802m). The data are given in units of um/s^2, also known as 'gravity units', or gu. A total of 6123 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 Mt Isa Area E Gravity Survey (P200644). 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: 09 03 2020

Issued: 09 03 2020

Modified: 05 07 2021

Data time period: 04 02 2007 to 11 05 2007

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144.1105,-19.9715 144.1105,-24.029 140.953,-24.029 140.953,-19.9715 144.1105,-19.9715

142.53175,-22.00025

text: westlimit=140.953; southlimit=-24.029; eastlimit=144.1105; northlimit=-19.9715; projection=GDA94 (EPSG:4283)

Subjects
Australia | Bouguer | EARTH SCIENCES | Earth sciences | GADDS2.0 | NCI | Published_External | QLD | geophysical survey | geophysics | geoscientificInformation | grav | gravity | grid | ground digital data | infinite slab | raster | simple Bouguer | survey 200644 |

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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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