Articles | Volume 24, issue 3
https://doi.org/10.5194/npg-24-569-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/npg-24-569-2017
© Author(s) 2017. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
28 Sep 2017
Research article |
| 28 Sep 2017
Quantifying the changes of soil surface microroughness due to rainfall impact on a smooth surface
Benjamin K. B. Abban
CORRESPONDING AUTHOR
Hydraulics and Sedimentation Lab, Department of Civil & Environmental Engineering, University of Tennessee – Knoxville, Knoxville, TN 37996, USA
A. N. (Thanos) Papanicolaou
Hydraulics and Sedimentation Lab, Department of Civil & Environmental Engineering, University of Tennessee – Knoxville, Knoxville, TN 37996, USA
Tennessee Water Resources Center, Knoxville, TN 37996, USA
Christos P. Giannopoulos
Hydraulics and Sedimentation Lab, Department of Civil & Environmental Engineering, University of Tennessee – Knoxville, Knoxville, TN 37996, USA
Dimitrios C. Dermisis
College of Engineering, Department of Chemical, Civil & Mechanical Engineering, McNeese State University, Lake Charles, LA 70605, USA
Kenneth M. Wacha
USDA-ARS – National Laboratory for Agriculture and the Environment, Ames, IA 50011, USA
Christopher G. Wilson
Hydraulics and Sedimentation Lab, Department of Civil & Environmental Engineering, University of Tennessee – Knoxville, Knoxville, TN 37996, USA
Mohamed Elhakeem
Abu Dhabi University, Abu Dhabi, P.O. Box 59911, Abu Dhabi, United Arab Emirates
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David Wichmann, Christian Kehl, Henk A. Dijkstra, and Erik van Sebille
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Wenjun Ji, Mi Lin, Asim Biswas, Bing C. Si, Henry W. Chau, and Hamish P. Cresswell
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We measure soil water at points (point scale) and try to understand how they vary over the landscape. Previous studies identified a statistical relationship between these scales only at the surface and not at depths. This study found that the relationship stands at different depths. The relationship was very similar at different depths in drier season or in late summer and fall. A less similar relationship was observed between surface and subsurface layers in spring or in wetter seasons.
José Manuel Mirás-Avalos, Emiliano Trigo-Córdoba, Rosane da Silva-Dias, Irene Varela-Vila, and Aitor García-Tomillo
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The current study aimed to describe the dynamics of soil water content at three depths in a vineyard under rain-fed and irrigation conditions and to assess the multifractality of these time data series. Soil water content data series obeyed power laws and tended to behave as multifractals. Our results suggest that singularity spectra were useful for characterising temporal variability of soil water content, distinguishing patterns among series registered under rain-fed and irrigation treatments.
V. K. Gupta and O. J. Mesa
Nonlin. Processes Geophys., 21, 1007–1025, https://doi.org/10.5194/npg-21-1007-2014, https://doi.org/10.5194/npg-21-1007-2014, 2014
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Short summary
We examine rainfall-induced change in soil microroughness of bare soil surfaces in agricultural landscapes with initial microroughness length scales on the order of 2 mm (smooth surfaces). Past studies have focused on scales of 5–50 mm and have reported a decrease in miccroroughness. Findings in this study show a consistent increase in microroughness under rainfall action for initial length scales of 2 mm. Thus, rainfall–surface interactions can be different for smooth and rough surfaces.
We examine rainfall-induced change in soil microroughness of bare soil surfaces in agricultural...
