Articles | Volume 26, issue 12
https://doi.org/10.5194/hess-26-3125-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/hess-26-3125-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| Highlight paper
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21 Jun 2022
Research article | Highlight paper |
| 21 Jun 2022
| 21 Jun 2022
Morphological controls on surface runoff: an interpretation of steady-state energy patterns, maximum power states and dissipation regimes within a thermodynamic framework
Samuel Schroers
CORRESPONDING AUTHOR
Institute of Water Resources and River Basin Management, Karlsruhe
Institute of Technology – KIT, Karlsruhe, Germany
Olivier Eiff
Institute for Hydromechanics, Karlsruhe Institute of Technology –
KIT, Karlsruhe, Germany
Axel Kleidon
Max Planck Institute for Biogeochemistry, Jena, Germany
Ulrike Scherer
Engler-Bunte-Institut, Water Chemistry and Water Technology – KIT,
Karlsruhe, Germany
Jan Wienhöfer
Institute of Water Resources and River Basin Management, Karlsruhe
Institute of Technology – KIT, Karlsruhe, Germany
Erwin Zehe
Institute of Water Resources and River Basin Management, Karlsruhe
Institute of Technology – KIT, Karlsruhe, Germany
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Axel Kleidon and Lee M. Miller
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Annu Panwar, Maik Renner, and Axel Kleidon
Hydrol. Earth Syst. Sci., 24, 4923–4942, https://doi.org/10.5194/hess-24-4923-2020, https://doi.org/10.5194/hess-24-4923-2020, 2020
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Here we examine the effect of evaporative cooling across different vegetation types. Evaporation cools surface temperature significantly in short vegetation. In the forest, the high aerodynamic conductance explains 56 % of the reduced surface temperature. Therefore, the main cooling agent in the forest is the high aerodynamic conductance and not evaporation. Additionally, we propose the diurnal variation in surface temperature as being a potential indicator of evaporation in short vegetation.
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Executive editor
The paper presents an original and innovative approach to understand hillslope processes linking hillslope surface flow, drainage structure formation, and erosion processes to thermodynamics. I consider that the topic is very important in understanding why simple parsimonious empirical methods work in nature.
The paper presents an original and innovative approach to understand hillslope processes...
Short summary
In hydrology the formation of landform patterns is of special interest as changing forcings of the natural systems, such as climate or land use, will change these structures. In our study we developed a thermodynamic framework for surface runoff on hillslopes and highlight the differences of energy conversion patterns on two related spatial and temporal scales. The results indicate that surface runoff on hillslopes approaches a maximum power state.
In hydrology the formation of landform patterns is of special interest as changing forcings of...
