Data

Streaky Bay - TMI RTP grid (AWAGS)

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/144987&rft.title=Streaky Bay - TMI RTP grid (AWAGS)&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/144987&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 magnetic grid has a cell size of 0.0004 degrees (approximately 41m).The data are in nanoTesla (or nT). The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 90670 line-kilometres of data at 200m line spacing and 60m terrain clearance. 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-11 geomagnetic reference model using a data representative date and elevation representative of the survey.Maintenance and Update Frequency: notPlannedStatement: This Streaky Bay - TMI RTP grid (AWAGS) is an airborne-derived Total Magnetic Intensity (TMI) Reduced to the Pole (RTP) grid for the Streaky Bay Airborne Magnetic Radiometric and DEM survey, SA, 2018. The survey was acquired under the project No. 1308 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 41m). The data are in nanoTesla (or nT). A total of 90670 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. 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 (Milligan et al., 2009). 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-11 geomagnetic reference model using a data representative date and elevation representative of the survey. 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: Milligan, P.R., Minty, B.R.S., Richardson, M. & Franklin, R., 2009. The Australia-wide Airborne Geophysical Survey accurate continental magnetic coverage. Preview, No. 138, p. 1-128, Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).&rft.creator=Geophysical Acquisition & Processing Section &rft.date=2020&rft.coverage=westlimit=133.4682; southlimit=-32.6723; eastlimit=135.0126; northlimit=-31.4851; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=133.4682; southlimit=-32.6723; eastlimit=135.0126; northlimit=-31.4851; projection=GDA94 (EPSG:4283)&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/&rft_rights=(c) Commonwealth of Australia (Geoscience Australia) and Department for Energy and Mining, Government of South 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=SA&rft_subject=survey 1308&rft_subject=AWAGS&rft_subject=GADDS2.0&rft_subject=TMI&rft_subject=RTP&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=reduced to the pole&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
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(c) Commonwealth of Australia (Geoscience Australia) and Department for Energy and Mining, Government of South Australia 2020

Australian Government Security ClassificationSystem
https://www.protectivesecurity.gov.au/Pages/default.aspx

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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 magnetic grid has a cell size of 0.0004 degrees (approximately 41m).The data are in nanoTesla (or nT). The data used to produce this grid was acquired in 2018 by the SA Government, and consisted of 90670 line-kilometres of data at 200m line spacing and 60m terrain clearance. 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-11 geomagnetic reference model using a data representative date and elevation representative of the survey.

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Maintenance and Update Frequency: notPlanned
Statement: This Streaky Bay - TMI RTP grid (AWAGS) is an airborne-derived Total Magnetic Intensity (TMI) Reduced to the Pole (RTP) grid for the Streaky Bay Airborne Magnetic Radiometric and DEM survey, SA, 2018. The survey was acquired under the project No. 1308 for the geological survey of SA. The grid has a cell size of 0.0004 degrees (approximately 41m). The data are in nanoTesla (or nT). A total of 90670 line-kilometres of data at a line spacing of 200m and 60m terrain clearance were acquired to produce this grid. 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 (Milligan et al., 2009). 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-11 geomagnetic reference model using a data representative date and elevation representative of the survey. 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: Milligan, P.R., Minty, B.R.S., Richardson, M. & Franklin, R., 2009. The Australia-wide Airborne Geophysical Survey accurate continental magnetic coverage. Preview, No. 138, p. 1-128, Percival, P.J., 2014. Index of airborne geophysical surveys (Fourteenth Edition).

Created: 31 10 2020

Issued: 31 10 2020

Modified: 05 07 2021

Data time period: 21 06 2018 to 30 09 2018

This dataset is part of a larger collection

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135.0126,-31.4851 135.0126,-32.6723 133.4682,-32.6723 133.4682,-31.4851 135.0126,-31.4851

134.2404,-32.0787

text: westlimit=133.4682; southlimit=-32.6723; eastlimit=135.0126; northlimit=-31.4851; projection=GDA94 (EPSG:4283)

Subjects
AWAGS | Australia | EARTH SCIENCES | Earth sciences | GADDS2.0 | NCI | Published_External | RTP | SA | TMI | airborne digital data | geophysical survey | geophysics | geoscientificInformation | grid | mag | magnetics | magnetism | palaeomagnetism | raster | reduced to the pole | survey 1308 | 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 Streaky Bay - TMI RTP grid (AWAGS) (Streaky Bay - TMI RTP grid (AWAGS) file download)

uri : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc

NetCDF Subsetting Service (NCSS) for Streaky Bay - TMI RTP grid (AWAGS) (Streaky Bay - TMI RTP grid (AWAGS) NCSS)

uri : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc/dataset.html

OPeNDAP web service for Streaky Bay - TMI RTP grid (AWAGS) (Streaky Bay - TMI RTP grid (AWAGS) OPeNDAP)

uri : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc.html

OGC Web Mapping Service (WMS) for Streaky Bay - TMI RTP grid (AWAGS) (Streaky Bay - TMI RTP grid (AWAGS) WMS)

uri : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for Streaky Bay - TMI RTP grid (AWAGS) (Streaky Bay - TMI RTP grid (AWAGS) WCS)

uri : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc?service=WCS&version=1.0.0&request=GetCapabilities

Streaky Bay - TMI RTP grid (AWAGS) NCSS

uri : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc/dataset.html

Streaky Bay - TMI RTP grid (AWAGS) OPeNDAP

uri : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc.html

Streaky Bay - TMI RTP grid (AWAGS) WMS

uri : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc?service=WMS&version=1.3.0&request=GetCapabilities

Streaky Bay - TMI RTP grid (AWAGS) WCS

uri : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/SA/grid/P1308/P1308-grid-tmi_rtp-AWAGS_MAG_2019.nc?service=WCS&version=1.0.0&request=GetCapabilities

Identifiers
  • Local : pid.geoscience.gov.au/dataset/ga/144987
  • global : c71d0300-6956-4550-b175-af28cf15eaed