Fig. 3

Individual core field Gauss coefficients for SH degrees \(n = 1{-}3\) at radius \(a = 6{,}371.2~\text {km}\) from CM6 (solid red) and CHAOS (dashed blue) from 1999 to 2019
Individual core field Gauss coefficients for SH degrees \(n = 1{-}3\) at radius \(a = 6{,}371.2~\text {km}\) from CM6 (solid red) and CHAOS (dashed blue) from 1999 to 2019