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Artificial recharge efficiency assessment by soil water balance and modelling approaches in a multi-layered vadose zone in a dry region

Pakparvar, Mojtaba; Hashemi, Hossein LU ; Rezaei, Meisam; Cornelis, Wim M.; Nekooeian, Gholamali and Kowsar, Sayyed Ahang (2018) In Hydrological Sciences Journal p.1-20
Abstract

To assess recharge through floodwater spreading, three wells, approx. 30 m deep, were dug in a 35-year-old basin in southern Iran. Hydraulic parameters of the layers were measured. One well was equipped with pre-calibrated time domain reflectometry (TDR) sensors. The soil moisture was measured continuously before and after events. Rainfall, ponding depth and the duration of the flooding events were also measured. Recharge was assessed by the soil water balance method, and by calibrated (inverse solution) HYDRUS-1D. The results show that the 15 wetting front was interrupted at a layer with fine soil accumulation over a coarse layer at the depth of approx. 4 m. This seemed to occur due to fingering flow. Estimation of recharge by the soil... (More)

To assess recharge through floodwater spreading, three wells, approx. 30 m deep, were dug in a 35-year-old basin in southern Iran. Hydraulic parameters of the layers were measured. One well was equipped with pre-calibrated time domain reflectometry (TDR) sensors. The soil moisture was measured continuously before and after events. Rainfall, ponding depth and the duration of the flooding events were also measured. Recharge was assessed by the soil water balance method, and by calibrated (inverse solution) HYDRUS-1D. The results show that the 15 wetting front was interrupted at a layer with fine soil accumulation over a coarse layer at the depth of approx. 4 m. This seemed to occur due to fingering flow. Estimation of recharge by the soil water balance and modelling approaches showed a downward water flux of 55 and 57% of impounded floodwater, respectively.

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author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
artificial recharge, fingering movement, floodwater spreading, HYDRUS, soil water balance
in
Hydrological Sciences Journal
pages
20 pages
publisher
IAHS Press
external identifiers
  • scopus:85049129684
ISSN
0262-6667
DOI
10.1080/02626667.2018.1481962
language
English
LU publication?
yes
id
0a5f7c9a-c157-4604-a295-d3caf020cc40
date added to LUP
2018-07-13 13:19:01
date last changed
2018-10-28 04:54:13
@article{0a5f7c9a-c157-4604-a295-d3caf020cc40,
  abstract     = {<p>To assess recharge through floodwater spreading, three wells, approx. 30 m deep, were dug in a 35-year-old basin in southern Iran. Hydraulic parameters of the layers were measured. One well was equipped with pre-calibrated time domain reflectometry (TDR) sensors. The soil moisture was measured continuously before and after events. Rainfall, ponding depth and the duration of the flooding events were also measured. Recharge was assessed by the soil water balance method, and by calibrated (inverse solution) HYDRUS-1D. The results show that the 15 wetting front was interrupted at a layer with fine soil accumulation over a coarse layer at the depth of approx. 4 m. This seemed to occur due to fingering flow. Estimation of recharge by the soil water balance and modelling approaches showed a downward water flux of 55 and 57% of impounded floodwater, respectively.</p>},
  author       = {Pakparvar, Mojtaba and Hashemi, Hossein and Rezaei, Meisam and Cornelis, Wim M. and Nekooeian, Gholamali and Kowsar, Sayyed Ahang},
  issn         = {0262-6667},
  keyword      = {artificial recharge,fingering movement,floodwater spreading,HYDRUS,soil water balance},
  language     = {eng},
  month        = {06},
  pages        = {1--20},
  publisher    = {IAHS Press},
  series       = {Hydrological Sciences Journal},
  title        = {Artificial recharge efficiency assessment by soil water balance and modelling approaches in a multi-layered vadose zone in a dry region},
  url          = {http://dx.doi.org/10.1080/02626667.2018.1481962},
  year         = {2018},
}