I thank the reviewers for their valuable comments and the authors for their responses. Both reviewers acknowledge the contribution of the research and offer constructive comments which I believe to be minor revisions that do not require the further review by referees.

I now instruct the authors to make the proposed changes to the manuscript based on their responses to the review comments.

For most review comments, it was clear how the authors propose to address these comments in the revised manuscript; however, there are a few review comments where a response is given by the authors but it is not noted how they will adjust the manuscript. An example of this is in the first "minor" comment from Referee #1. (It was not clear if the additional references will be added to the revised manuscript to address this review comment.)

In the revised manuscript, I ask that the authors be clear in where the manuscript was changed to address each review comment.

I thank the authors for their revisions and diligence in responding to the highly constructive review comments.

The reviewers provided excellent comments which strengthened the technical rigor of the work and improved the overall clarity and I find that the authors have addressed their comments with a number of new analyses and thoughts, which were then communicated when necessary in the revised text.