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The next generation Antarctic digital magnetic anomaly map

January 1, 2007

Initiated in 1995, the Antarctic Digital Magnetic Anomaly Project (ADMAP) produced the first magnetic
anomaly map of the Antarctic region south of 60
S (Golynsky et al., 2001). This map synthesized over 7.1 million line-kms of survey data available up through 1999 from marine, airborne and Magsat satellite observations. Since the
production of the initial map, a large number of new marine and airborne surveys and improved magnetic observations
from the Ørsted and CHAMP satellite missions have become available. In addition, an improved core field model for
the Antarctic has been developed to better isolate crustal anomalies in these data. The next generation compilation also
will likely represent the magnetic survey observations of the region in terms of a high-resolution spherical cap harmonic
model. In this paper, we review the progress and problems of developing an improved magnetic anomaly map to
facilitate studies of the Antarctic crustal magnetic field

Citation Information

Publication Year 2007
Title The next generation Antarctic digital magnetic anomaly map
DOI 10.3133/ofr20071047SRP093
Authors R.R.B von Frese, A.V. Golynsky, H.R. Kim, L. Gaya-Piqué, E. Thébault, M. Chiappinii, M. Ghidella, A. Grunow
Publication Type Report
Publication Subtype USGS Numbered Series
Series Title Open-File Report
Series Number 2007-1047-SRP-093
Index ID ofr20071047SRP093
Record Source USGS Publications Warehouse