Zodiacal light contribution in HFI channels, with 100 GHz to 857 GHz from top to bottom. Units are μK_CMB for 100−353 GHz and MJy sr^-1 for 545 and 857 GHz. Left column: estimate of the correction. Right column: the Survey 1−Survey 2 difference map after correction, which can be compared with the bottom row of Figs. 15 to 20. While there is no visible difference in the CMB channels, note the improvement to the 353−857 GHz maps.