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Total Magnetic Intensity Grid of Australia with Variable Reduction to Pole (VRTP) 2019 - seventh edition

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=Total Magnetic Intensity Grid of Australia with Variable Reduction to Pole (VRTP) 2019 - seventh edition&rft.identifier=ba72e5232fcc57266d3ea31986eab27d77c8804b&rft.publisher=AuScope&rft.description=Total magnetic intensity (TMI) data measures variations in the intensity of the Earth 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. A variable reduction to Pole is aimed at locating magnetic anomalies exactly above their source bodies and without any distortion. The 2019 Total magnetic Intensity (TMI) grid of Australia with variable reduction to pole (VRTP) has a grid cell size of ~3 seconds of arc (approximately 80 m). This grid only includes airborne-derived TMI data for onshore and near-offshore continental areas. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-11 geomagnetic reference model using a data representative date of January 2005 and elevation 300 m.Maintenance and Update Frequency: asNeeded&rft.creator=Anonymous&rft.date=2026&rft.coverage=westlimit=95.46957380455862; southlimit=-47.77337134002572; eastlimit=162.65938610455862; northlimit=-7.90746600023924&rft.coverage=westlimit=95.46957380455862; southlimit=-47.77337134002572; eastlimit=162.65938610455862; northlimit=-7.90746600023924&rft_rights=https://creativecommons.org/licenses/by/4.0&rft_subject=geoscientificInformation&rft_subject=Australia&rft_subject=National Geophysical Compilation&rft_subject=Magnetics&rft_subject=Reduction To Pole&rft_subject=RTP&rft_subject=Geophysics&rft_subject=Earth Sciences&rft_subject=NCI&rft_subject=World&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 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. A variable reduction to Pole is aimed at locating magnetic anomalies exactly above their source bodies and without any distortion. The 2019 Total magnetic Intensity (TMI) grid of Australia with variable reduction to pole (VRTP) has a grid cell size of ~3 seconds of arc (approximately 80 m). This grid only includes airborne-derived TMI data for onshore and near-offshore continental areas. The VRTP processing followed a differential reduction to pole calculation up to 5th order polynomial. Magnetic inclination and declination were derived from the IGRF-11 geomagnetic reference model using a data representative date of January 2005 and elevation 300 m.

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162.65939,-7.90747 162.65939,-47.77337 95.46957,-47.77337 95.46957,-7.90747 162.65939,-7.90747

129.06447995456,-27.840418670133

text: westlimit=95.46957380455862; southlimit=-47.77337134002572; eastlimit=162.65938610455862; northlimit=-7.90746600023924

Subjects
Australia | Earth Sciences | Geophysics | Magnetics | NCI | National Geophysical Compilation | RTP | Reduction To Pole | World | geoscientificInformation |

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Total Magnetic Intensity Grid of Australia with Variable Reduction to Pole (VRTP) 2019 - seventh edition (geophys:magmap_v7_2019_RTP)

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

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  • global : ba72e5232fcc57266d3ea31986eab27d77c8804b
ACN 633 798 857