a44ed787-508e-410a-a4be-8ffd3b042c65 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T09:16:46 creation ISO 19115 2016 p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic a44ed787-508e-410a-a4be-8ffd3b042c65 Gravity data measure small changes in gravity due to changes in the density of rocks beneath the Earth's surface. The data collected 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. This p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic is the first vertical derivative of the spheical cap Bouguer anomaly grid for the Central Arunta Gravity Survey, NT (P200880). This gravity survey was acquired under the project No. 200880 for the geological survey of NT. The grid has a cell size of 0.0037 degrees (approximately 395m). A total of 11829 gravity stations at variable spacing between 500m and 4000m were acquired to produce this grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. {"type": "Polygon", "coordinates": [[[131.3106, -24.4036], [138.015, -24.4036], [138.015, -20.8849], [131.3106, -20.8849], [131.3106, -24.4036]]]} 131.3106 138.015 -24.4036 -20.8849 1VD Australia Bouguer EARTH SCIENCES Earth sciences GADDS2.0 NCI NT Published_External first vertical derivative geophysical survey geophysics grav gravity grid ground digital data raster spherical cap survey 200880 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 p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic file download documentDigital File download for p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic application/x-netcdf p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic NCSS documentDigital NetCDF Subsetting Service (NCSS) for p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic HTML p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic OPeNDAP documentDigital OPeNDAP web service for p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic HTML p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic WMS documentDigital OGC Web Mapping Service (WMS) for p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic WMS p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic WCS documentDigital OGC Web Coverage Service (WCS) for p200880 Central Arunta Gravity spherical cap Bouguer Vert Deriv geodetic WCS