Skip to main content
Earth, Planets and Space
Fig. 6 | Earth, Planets and Space

Fig. 6

From: Morphology of the southern African geomagnetic field derived from observatory and repeat station survey observations: 2005–2014

Fig. 6

Secular variation of D, H, and Z components at Hermanus observatory as derived from monthly mean measurements between 2005 and 2014. The black dots show monthly mean secular variation estimates used as running annual differences. The CHAOS-5 global field model (black line) and the SAREG regional model (brown dashed line) are included. Piecewise linear fits to the data provide estimates of secular acceleration as given in the legends

Back to article page