Data

Leonora magnetic grid geodetic

Geoscience Australia
Geophysical Acquisition & Processing Section
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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/140880&rft.title=Leonora magnetic grid geodetic&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/140880&rft.description=Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data 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 Leonora magnetic grid geodetic has a cell size of 0.00083 degrees (approximately 87m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1992 by the WA Government, and consisted of 10225 line-kilometres of data at 400m line spacing and 60m terrain clearance.Maintenance and Update Frequency: notPlannedStatement: This Leonora magnetic grid geodetic is an airborne-derived Total Magnetic Intensity (TMI) grid for the Leonora, WA, 1991/92 survey. The survey was acquired under the project No. 586 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 87m). The units are in nanoTesla (or nT). A total of 10225 line-kilometres of data at a line spacing of 400m and 60m terrain clearance were acquired to produce this grid. Details of the specifications of individual airborne surveys can be found in the Fourteenth Edition of the Index of Airborne Geophysical Surveys (Percival, 2014). This Index is also available online at http://pid.geoscience.gov.au/dataset/79134. Reference: Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=119.946; southlimit=-29.0384; eastlimit=121.6243; northlimit=-27.9601; projection=AGD66 (EPSG:4202)&rft.coverage=westlimit=119.946; southlimit=-29.0384; eastlimit=121.6243; northlimit=-27.9601; projection=AGD66 (EPSG:4202)&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/&rft_rights=(c) Commonwealth of Australia (Geoscience Australia) 2020&rft_rights=Australian Government Security ClassificationSystem https://www.protectivesecurity.gov.au/Pages/default.aspx&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 586&rft_subject=GADDS2.0&rft_subject=TMI&rft_subject=magnetics&rft_subject=magnetism&rft_subject=palaeomagnetism&rft_subject=airborne digital data&rft_subject=geophysical survey&rft_subject=mag&rft_subject=total magnetic intensity&rft_subject=raster&rft_subject=Published_External&rft.type=dataset&rft.language=English Access the data
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Total magnetic intensity (TMI) data measures variations in the intensity of the Earth's magnetic field caused by the contrasting content of rock-forming minerals in the Earth crust. Magnetic anomalies can be either positive (field stronger than normal) or negative (field weaker) depending on the susceptibility of the rock. The data 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 Leonora magnetic grid geodetic has a cell size of 0.00083 degrees (approximately 87m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1992 by the WA Government, and consisted of 10225 line-kilometres of data at 400m line spacing and 60m terrain clearance.

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Maintenance and Update Frequency: notPlanned
Statement: This Leonora magnetic grid geodetic is an airborne-derived Total Magnetic Intensity (TMI) grid for the Leonora, WA, 1991/92 survey. The survey was acquired under the project No. 586 for the geological survey of WA. The grid has a cell size of 0.00083 degrees (approximately 87m). The units are in nanoTesla (or nT). A total of 10225 line-kilometres of data at a line spacing of 400m and 60m terrain clearance were acquired to produce this grid. Details of the specifications of individual airborne surveys can be found in the Fourteenth Edition of the Index of Airborne Geophysical Surveys (Percival, 2014). This Index is also available online at http://pid.geoscience.gov.au/dataset/79134. Reference: Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).

Created: 07 03 2020

Issued: 07 03 2020

Modified: 06 07 2021

Data time period: 08 1992 to 31 12 1992

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121.6243,-27.9601 121.6243,-29.0384 119.946,-29.0384 119.946,-27.9601 121.6243,-27.9601

120.78515,-28.49925

text: westlimit=119.946; southlimit=-29.0384; eastlimit=121.6243; northlimit=-27.9601; projection=AGD66 (EPSG:4202)

Subjects
Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | NCI | Published_External | TMI | WA | airborne digital data | geophysical survey | geophysics | geoscientificInformation | grid | mag | magnetics | magnetism | palaeomagnetism | raster | survey 586 | total magnetic intensity |

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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

File download for Leonora magnetic grid geodetic (Leonora magnetic grid geodetic file download)

uri : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc

NetCDF Subsetting Service (NCSS) for Leonora magnetic grid geodetic (Leonora magnetic grid geodetic NCSS)

uri : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc/dataset.html

OPeNDAP web service for Leonora magnetic grid geodetic (Leonora magnetic grid geodetic OPeNDAP)

uri : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc.html

OGC Web Mapping Service (WMS) for Leonora magnetic grid geodetic (Leonora magnetic grid geodetic WMS)

uri : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for Leonora magnetic grid geodetic (Leonora magnetic grid geodetic WCS)

uri : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc?service=WCS&version=1.0.0&request=GetCapabilities

Leonora magnetic grid geodetic NCSS

uri : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc/dataset.html

Leonora magnetic grid geodetic OPeNDAP

uri : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc.html

Leonora magnetic grid geodetic WMS

uri : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc?service=WMS&version=1.3.0&request=GetCapabilities

Leonora magnetic grid geodetic WCS

uri : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/GA/grid/P586/P586-grid-tmi.nc?service=WCS&version=1.0.0&request=GetCapabilities

Identifiers
  • Local : pid.geoscience.gov.au/dataset/ga/140880
  • global : bd41bb03-84a0-43e9-9bb0-d519bdfbec25