Dear authors,

Thank you for the revised version. Before your manuscript can be accepted for publication in GMD, please take into account the new reviewer's comments listed below.

Thank you,

Axel Lauer

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Reviewer's comments:

I thank the authors for their careful attention to the referee comments. I find the paper to be improved and ready for publication. Two minor comments and several typographical suggestions are offered below.

Minor comments (5/26 means page 5, line 26):

7/1: "the whole drop has time to equilibrate" --> "the isotopic content within each droplet is well-mixed"

7/15: The units of S_evap do not match between the heavy and light forms. In the heavy form, S_evap ~ A*rho_v, while the light form has S_evap ~ A*e_v. It would be good for these to be consistent. I expect that they are consistent in the code.

Typographic suggestions:

2/30: "ICON-ART-Iso stands out _because of_ its non-hydrostatic base model core ..."

2/31: "_Its design_ is flexible _enough_ to simulate ..."

4/3: "... one tracer for standard water and _an additional tracer for_ each of the isotopologues."

10/9: "... we focus on H2O (ICON standard water), HDO and H218O."

13/13: "... calendar ..."

13/15: "... also include the _fractional contribution to_ precipitation _by_ ocean and land evaporation ..."

16/17 and figure 3 caption: 140E < lamdbda < 220E

20/14: Remove "calibration" before "measurements"

22/11: Remove "values" after "density"

23/5: Remove parenthesis and add an "and" after "model sample"