Dear Authors,

based on your revised version and based on the reviewers comments, I am happy to
accept your paper subject to minor revisions. There is one remaining comment
by referee #2 which I would ask you to consider in your revised/final version of your paper
(it was only contained in the comments to the editor, not in the comments to the authors).

One detail: l. 23: "diurnal amount" is unclear. Do you mean " diurnal cycle of injection"?

Greetings

Rolf


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Original comment:
4) line 127 ‘The MLS IWC sensitivity thresholds do not allow to detect low ice content such as cirrus outflow associated with convective events. MLS IWC sensitivity will mostly be able to detect ice from convective cores. Following Livesey et al. (2017), we will not consider IWC measurements less than 0.02 mg m−3.’

Comment: All the thin cirrus are missed. How does that impact the results ?

Answer:
This sentence was not clear enough and have been changed. The detection limit of MariCont
ice concentration is 0.02 mg/m-3 in the TL whatever the origin/source of ice: convective cores or
cirrus associated with convective events. Thus, cirrus are not missed.
The new sentence l. 127 is now l.135:
The MLS IWC sensitivity thresholds are 0.1 mg
m −3 in the UT and 0.02 mg m −3 in the TL (Livesey et al., 2017) and will imply a small
under-estimation of the IWC measured values.
Furthermore, we changed according the detection limits values in the Tables
2 and 3.

New comment: The IWC in the UT and TL can go down to 10-3 -10-4 mg/m3 (see Krämer et al., 2016, ACP, their Figure 2). So ‘small under-estimation’ is formulated too modest, since many cirrus are missed.

Dear Authors,

thanks for your reply, I am happy to accept your paper for publication in ACP.

As far as I know, a "data availability" section will be required in the final version (see ACP authors guide) so perhaps you want to add this information already in the version submitted for production.

Regards

Rolf