dca8ff0d-aafb-49d5-833b-f8bd2cc36535 urn:uuid eng UTF-8 nonGeographicDataset nonGeographicDataset 2025-10-16T05:28:08 creation ISO 19115 2016 Mt Isa 2006, Area A (P200640), Bouguer 1VD grid dca8ff0d-aafb-49d5-833b-f8bd2cc36535 Gravity data measures 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. The processed data is checked for quality by GA geophysicists to ensure that the final data released by GA are fit-for-purpose. This Mt Isa 2006, Area A (P200640), Bouguer 1VD grid is a first vertical derivative of the Bouguer anomaly grid for the Mt Isa 2006, Area A (P200640) survey. This gravity survey was acquired under the project No. 200640 for the geological survey of QLD. The grid has a cell size of 0.00372 degrees (approximately 400m). A total of 6575 gravity stations were acquired to produce the original grid. A Fast Fourier Transform (FFT) process was applied to the original grid to calculate the first vertical derivative grid. {"type": "Polygon", "coordinates": [[[138.6064, -21.0276], [141.0308, -21.0276], [141.0308, -19.9707], [138.6064, -19.9707], [138.6064, -21.0276]]]} 138.6064 141.0308 -21.0276 -19.9707 1VD Australia Bouguer EARTH SCIENCES Earth sciences GADDS2.0 NCI Published_External QLD first vertical derivative geophysical survey geophysics grav gravity grid ground digital data infinite slab raster survey 200640 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 Mt Isa 2006, Area A (P200640), Bouguer 1VD grid file download documentDigital File download for Mt Isa 2006, Area A (P200640), Bouguer 1VD grid application/x-netcdf Mt Isa 2006, Area A (P200640), Bouguer 1VD grid NCSS documentDigital NetCDF Subsetting Service (NCSS) for Mt Isa 2006, Area A (P200640), Bouguer 1VD grid HTML Mt Isa 2006, Area A (P200640), Bouguer 1VD grid OPeNDAP documentDigital OPeNDAP web service for Mt Isa 2006, Area A (P200640), Bouguer 1VD grid HTML Mt Isa 2006, Area A (P200640), Bouguer 1VD grid WMS documentDigital OGC Web Mapping Service (WMS) for Mt Isa 2006, Area A (P200640), Bouguer 1VD grid WMS Mt Isa 2006, Area A (P200640), Bouguer 1VD grid WCS documentDigital OGC Web Coverage Service (WCS) for Mt Isa 2006, Area A (P200640), Bouguer 1VD grid WCS