Articles | Volume 25, issue 3
Hydrol. Earth Syst. Sci., 25, 1483–1508, 2021
https://doi.org/10.5194/hess-25-1483-2021
Hydrol. Earth Syst. Sci., 25, 1483–1508, 2021
https://doi.org/10.5194/hess-25-1483-2021

Research article 25 Mar 2021

Research article | 25 Mar 2021

Simulation of reactive solute transport in the critical zone: a Lagrangian model for transient flow and preferential transport

Alexander Sternagel et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
ED: Reconsider after major revisions (further review by editor and referees) (23 Dec 2020) by Alberto Guadagnini
AR by Alexander Sternagel on behalf of the Authors (11 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Referee Nomination & Report Request started (13 Feb 2021) by Alberto Guadagnini
RR by Anonymous Referee #3 (14 Feb 2021)
ED: Publish subject to minor revisions (review by editor) (15 Feb 2021) by Alberto Guadagnini
AR by Alexander Sternagel on behalf of the Authors (22 Feb 2021)  Author's response    Author's tracked changes    Manuscript
ED: Publish as is (23 Feb 2021) by Alberto Guadagnini
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Short summary
The key innovation of the study is a method to simulate reactive solute transport in the vadose zone within a Lagrangian framework. We extend the LAST-Model with a method to account for non-linear sorption and first-order degradation processes during unsaturated transport of reactive substances in the matrix and macropores. Model evaluations using bromide and pesticide data from irrigation experiments under different flow conditions on various timescales show the feasibility of the method.