摘要：It has come to our attention that incorrect units were inadver-
tently used for the axes and colour scales of a number of figures
in our paper (Yeates & Hornig 2016). Specifically:
1. The units of field line helicity A are quoted as
Maxwells [Mx], but the values for A shown in Figs. 3, 5, 7,
10, 11e and 12 in the original paper were actually in MxR −2
?
.
They should be multiplied by (6.96 × 10 10 ) 2 to reach the true
value in Mx.
2. The units of total helicity H, and of dH/dt are quoted as
Mx 2 , but the values were actually in Mx 2 R −4
?
. This applies
to Figs. 4c, d, 8c, d and 11d. They should be multiplied by
(6.96 × 10 10 ) 4 to reach the true value in Mx 2 .
关键词：enmagnetic fieldsmagnetohydrodynamics (MHD)Sun: coronaSun: magnetic fieldsSun: coronal mass ejections (CMEs)errata, addenda
