Dear Dr. Lee,

I have reviewed your revised manuscript and the comments you received from the reviewers and I am happy to publish your manuscript subject to some simple grammatical corrections. Most of these are simply missing the word "the" which I hope will simply be caught in copy-editing. Some of the more complex rewordings I would recommend are as follows (using line numbers from your revised draft):

1. Line 37: "of which extent...meteorological state" should be "the extent of which...meteorological conditions"
2. Line 114: "keep trajectory errors" should be "minimize trajectory errors"
3. line 146: "O3 concentration was reduced" should be "the O3 concentration decreased"
4. Line 159: "of which tendency was observed" should be "which was also observed"
5. Line 166-167: "reduced down to the minimum" should be "at a minimum"
6. Line 193: "was in a wide variation" should be "was highly variable"
7. Line 252-253: "It used to park over" should be something like "The stagnation tends to occur"