Data

Timor Sea 1991 Magnetic grid 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=http://rhe-ecat-prod01.prod.lan:8080/geonetwork/srv/eng/search?uuid=d95ef342-6e02-416b-997b-1426e29c88b5&rft.title=Timor Sea 1991 Magnetic grid geodetic&rft.identifier=https://pid.geoscience.gov.au/dataset/ga/143793&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 Timor Sea 1991 Magnetic grid geodetic has a cell size of 0.00833 degrees (approximately 916m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1991 by the WA Government, and consisted of 27424 line-kilometres of data at a line spacing between 2000m and 4000m, and 100m terrain clearance.Maintenance and Update Frequency: notPlannedStatement: This Timor Sea 1991 Magnetic grid geodetic is an airborne-derived Total Magnetic Intensity (TMI) grid for the Timor Sea Magnetic and ALF Survey, WA, 1991 (BP91) survey. The survey was acquired under the project No. 3017 for the geological survey of WA. The grid has a cell size of 0.00833 degrees (approximately 916m). The units are in nanoTesla (or nT). A total of 27424 line-kilometres of data at a line spacing between 2000m and 4000m, and 100m 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=125.9954; southlimit=-12.2493; eastlimit=128.8526; northlimit=-9.3754; projection=GDA94 (EPSG:4283)&rft.coverage=westlimit=125.9954; southlimit=-12.2493; eastlimit=128.8526; northlimit=-9.3754; projection=GDA94 (EPSG:4283)&rft_rights=Creative Commons Attribution 4.0 International Licence http://creativecommons.org/licenses/&rft_rights=(c) State of Western Australia (Department of Mines, Industry Regulation and Safety) 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 3017&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
Cite Saved to MyRDA Save to MyRDA

Licence & Rights:

Open Licence view details
CC-BY

Creative Commons Attribution 4.0 International Licence
http://creativecommons.org/licenses/

(c) State of Western Australia (Department of Mines, Industry Regulation and Safety) 2020

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

Access:

Open

Full 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 Timor Sea 1991 Magnetic grid geodetic has a cell size of 0.00833 degrees (approximately 916m). The units are in nanoTesla (or nT). The data used to produce this grid was acquired in 1991 by the WA Government, and consisted of 27424 line-kilometres of data at a line spacing between 2000m and 4000m, and 100m terrain clearance.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: This Timor Sea 1991 Magnetic grid geodetic is an airborne-derived Total Magnetic Intensity (TMI) grid for the Timor Sea Magnetic and ALF Survey, WA, 1991 (BP91) survey. The survey was acquired under the project No. 3017 for the geological survey of WA. The grid has a cell size of 0.00833 degrees (approximately 916m). The units are in nanoTesla (or nT). A total of 27424 line-kilometres of data at a line spacing between 2000m and 4000m, and 100m 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: 05 07 2021

Data time period: 27 05 1991 to 07 1991

This dataset is part of a larger collection

Click to explore relationships graph
Help

Related People

128.8526,-9.3754 128.8526,-12.2493 125.9954,-12.2493 125.9954,-9.3754 128.8526,-9.3754

127.424,-10.81235

text: westlimit=125.9954; southlimit=-12.2493; eastlimit=128.8526; northlimit=-9.3754; projection=GDA94 (EPSG:4283)

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 3017 | total magnetic intensity |

User Contributed Tags    

Login to tag this record with meaningful keywords to make it easier to discover

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)

url : https://portal.ga.gov.au/persona/gadds

File download for Timor Sea 1991 Magnetic grid geodetic (Timor Sea 1991 Magnetic grid geodetic file download)

url : https://thredds.nci.org.au/thredds/fileServer/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc

NetCDF Subsetting Service (NCSS) for Timor Sea 1991 Magnetic grid geodetic (Timor Sea 1991 Magnetic grid geodetic NCSS)

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc/dataset.html

OPeNDAP web service for Timor Sea 1991 Magnetic grid geodetic (Timor Sea 1991 Magnetic grid geodetic OPeNDAP)

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc.html

OGC Web Mapping Service (WMS) for Timor Sea 1991 Magnetic grid geodetic (Timor Sea 1991 Magnetic grid geodetic WMS)

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc?service=WMS&version=1.3.0&request=GetCapabilities

OGC Web Coverage Service (WCS) for Timor Sea 1991 Magnetic grid geodetic (Timor Sea 1991 Magnetic grid geodetic WCS)

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc?service=WCS&version=1.0.0&request=GetCapabilities

Timor Sea 1991 Magnetic grid geodetic NCSS

url : https://thredds.nci.org.au/thredds/ncss/grid/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc/dataset.html

Timor Sea 1991 Magnetic grid geodetic OPeNDAP

url : https://thredds.nci.org.au/thredds/dodsC/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc.html

Timor Sea 1991 Magnetic grid geodetic WMS

url : https://thredds.nci.org.au/thredds/wms/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc?service=WMS&version=1.3.0&request=GetCapabilities

Timor Sea 1991 Magnetic grid geodetic WCS

url : https://thredds.nci.org.au/thredds/wcs/iv65/Geoscience_Australia_Geophysics_Reference_Data_Collection/airborne_geophysics/WA/grid/P3017/P3017-grid-tmi.nc?service=WCS&version=1.0.0&request=GetCapabilities

Identifiers
ACN 633 798 857