Author response to Reviewer #2

Abstract

Dear Anonymuous Reviewer #2, we are greatful for the positive review and the helpful comments and suggestions. Please find in the attached document our response to the main points. Every single specific comment will be addressed in the revision.Please also note the supplement to this comment: https://www.geosci-instrum-method-data-syst-discuss.net/gi-2017-34/gi-2017-34-AC1-supplement.pdf C1