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Table 3 RMS values of the differences between SACFM-2 and CHAOS-6 main field models between 2005 and 2010 at 0.8 km altitude

From: A harmonic spline magnetic main field model for Southern Africa combining ground and satellite data to describe the evolution of the South Atlantic Anomaly in this region between 2005 and 2010

Component 2005.5 2006.5 2007.5 2008.5 2009.5 2010.5
\(\Delta X\) (nT) 92.6 89.9 93.1 92.0 88.0 88.4
\(\Delta Y\) (nT) 91.3 89.0 83.7 82.9 82.9 80.8
\(\Delta Z\) (nT) 87.5 88.3 89.1 86.9 85.3 80.6
  1. These differences were computed using 684 data points over the modelled area