The revised manuscript is in very good shape. Thank you for making a great effort for submitting responses to the reviewers questions and modifying manuscript.
One remaining concern is the lack of clear statements about changes (improvements) achieved in the new version with respect to the previous version. There are several places in the manuscript where the differences discussed. However, it would be very convenient for the readers to have a short paragraph in the Summary of the paper.
Another concern is a lack of clear statement about recommended use of IASI data for trend analyses with regards to the drift. Is it a continuous drift during the entire period (2008-2016) or the record starting in 2011 has no significant drift and this portion of the record can be used for trend studies?
Please find attached reports from the the reviewers that request to minor changes.
I hope you can respond quickly and we can publish this paper very soon.

I accepted the latest changes to the manuscript. It is a much better written paper now, thank you for adding details of two processing algorithms and identifying the differences that contribute to the product changes.