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Magnetic Anomaly Map of Australia, Seventh Edition, 2020 - Enhanced Products Package - pseudogravity grid

AuScope
Client Services (Point of contact) Geoscience Australia (Associated with)
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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=http://portal.auscope.org/geonetwork/srv/api/records/177abe2c-9efe-4fd2-a66e-0f1e099c3047&rft.title=Magnetic Anomaly Map of Australia, Seventh Edition, 2020 - Enhanced Products Package - pseudogravity grid&rft.identifier=e5fb73632c6c97c6955a9cf721b5a3e85222a189&rft.publisher=AuScope&rft.description=This layer has a cell size of 0.00083 degrees (approximately 88m).The data are in nanoTesla per metre (or nT/m). To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid. This survey grid is essentially levelled to AWAGS. The data has had a variable reduction to the pole applied to centre the magnetic anomaly over the magnetised body. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-15 geomagnetic reference model using a data representative date and elevation representative of the survey. A further enhancement has been completed to enhance the geological interpretation of the data.Maintenance and Update Frequency: asNeeded&rft.creator=Anonymous&rft.date=2026&rft.coverage=westlimit=105.99958334997916; southlimit=-43.93009909082764; eastlimit=154.66347004997917; northlimit=-9.026495250934511&rft.coverage=westlimit=105.99958334997916; southlimit=-43.93009909082764; eastlimit=154.66347004997917; northlimit=-9.026495250934511&rft_rights=https://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=magnetics&rft_subject=grid&rft_subject=geophysics&rft_subject=Australia&rft_subject=World&rft_subject=EARTH SCIENCES&rft.type=dataset&rft.language=English Access the data
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This layer has a cell size of 0.00083 degrees (approximately 88m).The data are in nanoTesla per metre (or nT/m). To constrain long wavelengths in the grid, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey grid. This survey grid is essentially levelled to AWAGS. The data has had a variable reduction to the pole applied to centre the magnetic anomaly over the magnetised body. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-15 geomagnetic reference model using a data representative date and elevation representative of the survey. A further enhancement has been completed to enhance the geological interpretation of the data.

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Maintenance and Update Frequency: asNeeded

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154.66347,-9.0265 154.66347,-43.9301 105.99958,-43.9301 105.99958,-9.0265 154.66347,-9.0265

130.33152669998,-26.478297170881

text: westlimit=105.99958334997916; southlimit=-43.93009909082764; eastlimit=154.66347004997917; northlimit=-9.026495250934511

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Australia | Earth Sciences | World | geophysics | geoscientificInformation | grid | magnetics |

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Magnetic Anomaly Map of Australia, Seventh Edition, 2020 - Enhanced Products Package - pseudogravity grid (geophys:magmap_v7_2019_VRTP_pGRAV)

url : https://services.ga.gov.au/gis/geophysical-grids/ows?SERVICE=WMS&

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  • global : e5fb73632c6c97c6955a9cf721b5a3e85222a189