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Modeling plot scale dye penetration by a diffusion limited aggregation (DLA) model

Persson, Magnus LU ; Yasuda, Hiroshi ; Albergel, Jean ; Berndtsson, Ronny LU ; Zante, Patrick ; Nasri, Slah and Öhrström, Pernilla LU (2001) In Journal of Hydrology 250(1-4). p.98-105
Abstract
Solute transport in the unsaturated zone often occurs in preferential How paths. There are several reasons for this, e.g., water repellency, the occurrence of fissures and cracks, animal borrows, decomposed root threads etc. The resulting How patterns often display a fractal resemblance which is difficult to predict using conventional transport models. A way to preserve the fractal property of observed data is to use the diffusion limited aggregation (DLA) model concept. In the present paper we use dye infiltration data to further develop the DLA model concept as applied to solute movement in soils. The DLA model is first calibrated against detailed field observations of dye infiltration. The model is shown to give a good description of... (More)
Solute transport in the unsaturated zone often occurs in preferential How paths. There are several reasons for this, e.g., water repellency, the occurrence of fissures and cracks, animal borrows, decomposed root threads etc. The resulting How patterns often display a fractal resemblance which is difficult to predict using conventional transport models. A way to preserve the fractal property of observed data is to use the diffusion limited aggregation (DLA) model concept. In the present paper we use dye infiltration data to further develop the DLA model concept as applied to solute movement in soils. The DLA model is first calibrated against detailed field observations of dye infiltration. The model is shown to give a good description of observed mean and variance of dye penetration. After this, the calibrated model is verified against independent data from a nearby plot. The model is shown to reproduce observed dye patterns in a satisfactory way also at the verification plot. (Less)
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author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Hydrology
volume
250
issue
1-4
pages
98 - 105
publisher
Elsevier
external identifiers
  • scopus:0035452060
  • wos:000170260800007
ISSN
0022-1694
DOI
10.1016/S0022-1694(01)00422-X
language
English
LU publication?
yes
id
1f4927fb-523b-4b68-823d-8207e4839c13
date added to LUP
2018-05-30 14:22:15
date last changed
2020-11-22 03:12:16
@article{1f4927fb-523b-4b68-823d-8207e4839c13,
  abstract     = {Solute transport in the unsaturated zone often occurs in preferential How paths. There are several reasons for this, e.g., water repellency, the occurrence of fissures and cracks, animal borrows, decomposed root threads etc. The resulting How patterns often display a fractal resemblance which is difficult to predict using conventional transport models. A way to preserve the fractal property of observed data is to use the diffusion limited aggregation (DLA) model concept. In the present paper we use dye infiltration data to further develop the DLA model concept as applied to solute movement in soils. The DLA model is first calibrated against detailed field observations of dye infiltration. The model is shown to give a good description of observed mean and variance of dye penetration. After this, the calibrated model is verified against independent data from a nearby plot. The model is shown to reproduce observed dye patterns in a satisfactory way also at the verification plot.},
  author       = {Persson, Magnus and Yasuda, Hiroshi and Albergel, Jean and Berndtsson, Ronny and Zante, Patrick and Nasri, Slah and Öhrström, Pernilla},
  issn         = {0022-1694},
  language     = {eng},
  number       = {1-4},
  pages        = {98--105},
  publisher    = {Elsevier},
  series       = {Journal of Hydrology},
  title        = {Modeling plot scale dye penetration by a diffusion limited aggregation (DLA) model},
  url          = {http://dx.doi.org/10.1016/S0022-1694(01)00422-X},
  doi          = {10.1016/S0022-1694(01)00422-X},
  volume       = {250},
  year         = {2001},
}