64353c4c-ec5e-487b-ac5d-89a0f4176cc5 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T06:56:55 creation ISO 19115 2016 Tanami EW - magnetic line data (AWAGS) 64353c4c-ec5e-487b-ac5d-89a0f4176cc5 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. These line dataset from the NTGS Tanami EW Detailed Airborne Magnetic Radiometric and Digital Elevation Survey, NT, 2018 survey were acquired in 2018 by the NT Government, and consisted of 97969 line-kilometres of data at 200m line spacing and 60m terrain clearance. To constrain long wavelengths in the data, an independent data set, the Australia-wide Airborne Geophysical Survey (AWAGS) airborne magnetic data, was used to control the base levels of the survey data. This survey data is essentially levelled to AWAGS. {"type": "Polygon", "coordinates": [[[128.989, -20.2328], [131.1741, -20.2328], [131.1741, -18.976], [128.989, -18.976], [128.989, -20.2328]]]} 128.989 131.1741 -20.2328 -18.976 AWAGS Australia EARTH SCIENCES Earth sciences GADDS2.0 NT Published_External airborne digital data geophysical survey geophysics line magnetic magnetics magnetism and palaeomagnetism survey 1312 vector File available for download in various formats from the GADDS2 portal documentDigital 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. HTML Tanami EW - magnetic line data (AWAGS) file download documentDigital File download for Tanami EW - magnetic line data (AWAGS) application/x-netcdf Tanami EW - magnetic line data (AWAGS) OPeNDAP documentDigital OPeNDAP web service for Tanami EW - magnetic line data (AWAGS) HTML