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ADMAP2 is the second generation Antarctic magnetic compilation for the region south of 60 deg S. This dataset includes 3.5 million line-km of aeromagnetic and marine magnetic data from multiple nations, which is more than double that in the original ADMAP compilation. For the new compilation, the magnetic data sets were corrected for the International Geomagnetic Reference Field, diurnal effects, and high-frequency errors and levelled, gridded, and stitched together. The new dataset provides an unprecedented view of the sub-surface geological structure of Antarctica. It represents a major milestone of the international Scientific Committee on Antarctic Research (SCAR) Antarctic Digital Magnetic Anomaly (ADMAP) Project. Funding was provided by the Korea Polar Research Institute (KOPRI). Grant Numbers: PM15040, PE17050.