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Nearly 1.4 million gravity stations from the Australian National Gravity Database, supplemented by global marine data, were used to create this continental grid. The National Gravity Compilation 2019 DGIR grid shows de-trended global isostatic residual anomalies over Australia and its continental margins at a cell size of approximately 435 meters. Data were acquired by government, industry, and research bodies from the 1940s onward and processed by Geoscience Australia geophysicists to ensure fitness-for-purpose.
File formats include WCS, APPLICATION/X-NETCDF, and WMS, which may require specific geospatial software (e.g., GIS applications) for analysis.