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A hierarchical approach on groundwater-surface water interaction in wetlands along the upper Biebrza River, Poland

Christian Anibas, Boud Verbeiren, Kerst Buis, Jarek Chormanski, Liesbet De Doncker UGent, Tomasz Okruszko, Patrick Meire and Okke Batelaan (2011) HYDROLOGY AND EARTH SYSTEM SCIENCES. p.9537-9585
abstract
Groundwater-surface water exchange studies on natural rivers and wetlands dominated by organic soils are scarce. We present a hierarchical approach to quantitatively investigate and interpret groundwater-surface water interaction in space and time by applying a combination of different field methods including piezometer nests, temperature and seepage measurements. The numerical 1-D heat transport model of STRIVE is used in transient mode to calculate vertical fluxes from thermal profiles measured along the upper Biebrza River, Poland over a period of nine months. The calculated fluxes show no clear spatial pattern of exchange fluxes unless an interpolation of the point estimates on a reach scale is performed. Significance of differences in net exchange rates versus morphological features are investigated with statistical tests. Time series of temperature and hydraulic head of the hyporheic zone are used to estimate the temporal variability of the groundwater-surface water exchange. Seepage meter measurements and slug tests were used for cross validation of modelled fluxes. Results show a strong heterogeneity of the thermal and physical soil properties along the reach, leading to a classification of these parameters for modelling purposes. The groundwater-surface water exchange shows predominantly upward water fluxes, however alternating sections of recharge exist. The exchange fluxes are significantly different dependent on the position of the river in the valley floor and the river morphology where fluxes are more dependent on hydraulic gradients than on river bed conductivity. Sections of higher fluxes are linked to the vicinity of the morainic plateau surrounding the rivers alluvium and to meanders, indicating that a perspective on the fluvio-plain scale is required for interpreting the estimated exchange fluxes. Since the vertical component of the exchange fluxes cannot explain the magnitude of the change in river discharge, a lateral flow component across the alluvial plain has to be responsible. The hierarchical methodology increases the confidence in the estimated exchange fluxes and improves the process understanding, however the accuracy of the measurements and related uncertainties remain challenges for wetland environments.
Please use this url to cite or link to this publication:
author
organization
year
type
journalArticle (original)
publication status
published
subject
keyword
Biebrza, surface water, groundwater
journal title
HYDROLOGY AND EARTH SYSTEM SCIENCES
Hydrol. Earth Syst. Sci. Discuss.
issue
8
pages
9537 - 9585
JCR category
WATER RESOURCES
JCR impact factor
3.148 (2011)
JCR rank
2/78 (2011)
JCR quartile
1 (2011)
ISSN
1027-5606
DOI
10.5194/hessd-8-9537-2011
language
English
UGent publication?
yes
classification
A2
copyright statement
I have transferred the copyright for this publication to the publisher
id
2958651
handle
http://hdl.handle.net/1854/LU-2958651
date created
2012-07-09 14:14:26
date last changed
2012-07-10 13:41:51
@article{2958651,
  abstract     = {Groundwater-surface water exchange studies on natural rivers and wetlands dominated by organic soils are scarce. We present a hierarchical approach to quantitatively investigate and interpret groundwater-surface water interaction in space and time by applying a combination of different field methods including piezometer nests, temperature and seepage measurements. The numerical 1-D heat transport model of STRIVE is used in transient mode to calculate vertical fluxes from thermal profiles measured along the upper Biebrza River, Poland over a period of nine months. The calculated fluxes show no clear spatial pattern of exchange fluxes unless an interpolation of the point estimates on a reach scale is performed. Significance of differences in net exchange rates versus morphological features are investigated with statistical tests. Time series of temperature and hydraulic head of the hyporheic zone are used to estimate the temporal variability of the groundwater-surface water exchange. Seepage meter measurements and slug tests were used for cross validation of modelled fluxes. Results show a strong heterogeneity of the thermal and physical soil properties along the reach, leading to a classification of these parameters for modelling purposes. The groundwater-surface water exchange shows predominantly upward water fluxes, however alternating sections of recharge exist. The exchange fluxes are significantly different dependent on the position of the river in the valley floor and the river morphology where fluxes are more dependent on hydraulic gradients than on river bed conductivity. Sections of higher fluxes are linked to the vicinity of the morainic plateau surrounding the rivers alluvium and to meanders, indicating that a perspective on the fluvio-plain scale is required for interpreting the estimated exchange fluxes. Since the vertical component of the exchange fluxes cannot explain the magnitude of the change in river discharge, a lateral flow component across the alluvial plain has to be responsible. The hierarchical methodology increases the confidence in the estimated exchange fluxes and improves the process understanding, however the accuracy of the measurements and related uncertainties remain challenges for wetland environments.},
  author       = {Anibas, Christian and Verbeiren, Boud and Buis, Kerst and Chormanski, Jarek and De Doncker, Liesbet and Okruszko, Tomasz and Meire, Patrick  and Batelaan, Okke },
  issn         = {1027-5606},
  journal      = {HYDROLOGY AND EARTH SYSTEM SCIENCES},
  keyword      = {Biebrza,surface water,groundwater},
  language     = {eng},
  number       = {8},
  pages        = {9537--9585},
  title        = {A hierarchical approach on groundwater-surface water interaction in wetlands along the upper Biebrza River, Poland},
  url          = {http://dx.doi.org/10.5194/hessd-8-9537-2011},
  year         = {2011},
}

Chicago
Anibas, Christian, Boud Verbeiren, Kerst Buis, Jarek Chormanski, Liesbet De Doncker, Tomasz Okruszko, Patrick Meire, and Okke Batelaan. 2011. “A Hierarchical Approach on Groundwater-surface Water Interaction in Wetlands Along the Upper Biebrza River, Poland.” Hydrology and Earth System Sciences (8): 9537–9585.
APA
Anibas, Christian, Verbeiren, B., Buis, K., Chormanski, J., De Doncker, L., Okruszko, T., Meire, P., et al. (2011). A hierarchical approach on groundwater-surface water interaction in wetlands along the upper Biebrza River, Poland. HYDROLOGY AND EARTH SYSTEM SCIENCES, (8), 9537–9585.
Vancouver
1.
Anibas C, Verbeiren B, Buis K, Chormanski J, De Doncker L, Okruszko T, et al. A hierarchical approach on groundwater-surface water interaction in wetlands along the upper Biebrza River, Poland. HYDROLOGY AND EARTH SYSTEM SCIENCES. 2011;(8):9537–85.
MLA
Anibas, Christian, Boud Verbeiren, Kerst Buis, et al. “A Hierarchical Approach on Groundwater-surface Water Interaction in Wetlands Along the Upper Biebrza River, Poland.” HYDROLOGY AND EARTH SYSTEM SCIENCES 8 (2011): 9537–9585. Print.