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Nearly 1.8 million gravity observations, including 1.4 million ground stations and 451,000 line km of airborne surveys, were used to generate this 2019 grid. The Australian Ocean Data Network compiled data from government, industry, and research sources dating from the 1940s to 2019. The grid shows the half vertical derivative of de-trended global isostatic residual anomalies at a cell size of approximately 435 meters over Australia and its continental margins.
Data is provided in geospatial service formats (WCS, WMS) and NetCDF; specific software for these formats may be required for analysis.