Articles | Volume 29, issue 16
https://doi.org/10.5194/hess-29-3935-2025
https://doi.org/10.5194/hess-29-3935-2025
Research article
 | 
25 Aug 2025
Research article |  | 25 Aug 2025

Soil moisture and precipitation intensity jointly control the transit time distribution of quick flow in a flashy headwater catchment

Hatice Türk, Christine Stumpp, Markus Hrachowitz, Karsten Schulz, Peter Strauss, Günter Blöschl, and Michael Stockinger

Model code and software

haticeturk/Transit Time Modeling Using Precipitation and Soil Moisture Driven SAS Functions: Transit Time Modeling Using Precipitation and Soil Moisture Driven SAS Functions (v1.0.0) Hatice Türk https://doi.org/10.5281/zenodo.16909979

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Short summary
Using advances in transit time estimation and tracer data, we tested if fast-flow transit times are controlled solely by soil moisture or if they are also controlled by precipitation intensity. We used soil-moisture-dependent and precipitation-intensity-conditional transfer functions. We showed that a significant portion of event water bypasses the soil matrix through fast flow paths (overland flow, tile drains, preferential-flow paths) in dry soil conditions for both low- and high-intensity precipitation.
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