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MHYDAS-DRAIN: A spatially distributed model for small, artificially drained lowland catchments

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  • Tiemeyer, Bärbel
  • Moussa, Roger
  • Lennartz, Bernd
  • Voltz, Marc

Abstract

Although artificial drainage measures such as tile and ditch drainage, which shorten the residence time of water in the soil, do not only enhance diffuse pollution of surface water bodies, but also substantially alter the hydrology of lowland catchments, they are rarely explicitly included into spatially distributed catchment models. This is even more the case if flow anomalies like preferential flow cause a further acceleration of water flux and solute transport. Here, we present the spatially distributed modelling concept MHYDAS-DRAIN to account for and to evaluate these phenomena. As a starting point for model development, we chose the model MHYDAS which takes into account the discontinuities and the spatial variability of farmed catchments. The modelling domain consists of a system of interconnected ‘hydrological units’ which are derived by the overlay and intersection of geographical information and are linked to a drainage network. For the development of MHYDAS-DRAIN it was hypothesised that the tile drain discharge is composed of two components accounting for preferential flow and matrix flow. The fast flow component is modelled by a transfer function approach while the slow drainage discharge is calculated by the Hooghoudt equation. In open ditches, an additional baseflow component contributes to the total discharge. All flow routing is realised by an analytical diffusive wave approximation. The model was then applied to a small experimental catchment in the pleistocene lowland area of North-Eastern Germany. The model's parameter space was explored by a multi-target sensitivity analysis based on Latin hypercube sampling, Monte Carlo and regression analysis. This allowed the choice of efficient calibration parameters. The comparison and cross-evaluation of different calibration approaches demonstrated that parameter values depend on the calibration criteria as well as on the spatial and temporal resolution of the modelling domain. Modelled flow volumes, discharge rates and groundwater levels agreed reasonably well with measured data both in an hourly and daily temporal resolution. Although the fast flow component contributed – according to the modelling results – only a few percent to the total tile drainage discharge, this may still be of importance for solute transport. Snow events, however, like those of the winter of 2005, could not yet be simulated successfully, and the model proved to be sensitive to input data uncertainty. Nonetheless, the model is useful to account for the spatially variable properties of an artificial drainage system and should be applied to larger scales.

Suggested Citation

  • Tiemeyer, Bärbel & Moussa, Roger & Lennartz, Bernd & Voltz, Marc, 2007. "MHYDAS-DRAIN: A spatially distributed model for small, artificially drained lowland catchments," Ecological Modelling, Elsevier, vol. 209(1), pages 2-20.
  • Handle: RePEc:eee:ecomod:v:209:y:2007:i:1:p:2-20
    DOI: 10.1016/j.ecolmodel.2007.07.003
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    Citations

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    Cited by:

    1. Janssen, Manon & Frings, Johanna & Lennartz, Bernd, 2018. "Effect of grass buffer strips on nitrate export from a tile-drained field site," Agricultural Water Management, Elsevier, vol. 208(C), pages 318-325.
    2. Lu, Shenglan & Andersen​, Hans Estrup & Thodsen, Hans & Rubæk, Gitte Holton & Trolle, Dennis, 2016. "Extended SWAT model for dissolved reactive phosphorus transport in tile-drained fields and catchments," Agricultural Water Management, Elsevier, vol. 175(C), pages 78-90.
    3. François Colin & Serge Guillaume & Bruno Tisseyre, 2011. "Small Catchment Agricultural Management Using Decision Variables Defined at Catchment Scale and a Fuzzy Rule-Based System: A Mediterranean Vineyard Case Study," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 25(11), pages 2649-2668, September.
    4. Branger, F. & Tournebize, J. & Carluer, N. & Kao, C. & Braud, I. & Vauclin, M., 2009. "A simplified modelling approach for pesticide transport in a tile-drained field: The PESTDRAIN model," Agricultural Water Management, Elsevier, vol. 96(3), pages 415-428, March.
    5. Stefan Koch & Andreas Bauwe & Bernd Lennartz, 2013. "Application of the SWAT Model for a Tile-Drained Lowland Catchment in North-Eastern Germany on Subbasin Scale," Water Resources Management: An International Journal, Published for the European Water Resources Association (EWRA), Springer;European Water Resources Association (EWRA), vol. 27(3), pages 791-805, February.
    6. Yang, Yang & Zhu, Yan & Wu, Jingwei & Mao, Wei & Ye, Ming & Yang, Jinzhong, 2022. "Development and application of a new package for MODFLOW-LGR-MT3D for simulating regional groundwater and salt dynamics with subsurface drainage systems," Agricultural Water Management, Elsevier, vol. 260(C).

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