Dear Author,

Please provide the following minor revisions to the manuscript:
1. Figure 4: solid and dashed lines are not well distinguishable. Panels should ne enlarged to provide a better visibility. This comment is valid for Figure 7.
2. The responses to reviewer 1 and reviewer 2 regarding the parabolic form of the residuals at 10hPa and the use of von Clarman method are to be expanded. Does the von Clarman method corrects the auto-correlation of residuals. Please comment and provide explanation in the paper. Also the question of referee 1 on the amount of variance explained by the regression model (R2) should be answered and mentioned in the article. The representation or the description of R2 as a function of altitude would be very useful.

3. The arcticle is somewhat confusing on the time period of the evaluated trend: is it from 1997 or from 1994. Both periods are mentioned and equation 1 does not mentioned over which time period the linear trend is calculated. Please check and provide precisions accordingly.

Regards,

Sophie Godin-Beekmann