06 Jun 2017
06 Jun 2017
Brief communication: Estimation of hydraulic properties of active layers using ground-penetrating radar (GPR) and 2D inverse hydrological modeling
- 1Institute of Environmental Physics, Heidelberg University, Im Neuenheimer Feld 229, 69120, Heidelberg, Germany
- 2Fengqiu Agro-ecological Experimental Station, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing, China
- 3HGSMathComp, Heidelberg University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
- 4Interdisplinary Center for Scientific Computing (IWR), Heidelberg University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
- 1Institute of Environmental Physics, Heidelberg University, Im Neuenheimer Feld 229, 69120, Heidelberg, Germany
- 2Fengqiu Agro-ecological Experimental Station, State Key Laboratory of Soil and Sustainable Agriculture, Institute of Soil Science, Chinese Academy of Sciences, 71 East Beijing Road, Nanjing, China
- 3HGSMathComp, Heidelberg University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
- 4Interdisplinary Center for Scientific Computing (IWR), Heidelberg University, Im Neuenheimer Feld 205, 69120 Heidelberg, Germany
Abstract. Estimation of hydraulic properties of active layers is challenging due to the freeze-thaw effect in space and time. Provided an active layer with an undulating thawing table, monitoring of spatial soil water dynamics could provide significant information for commonly-used inverse estimation of soil hydraulic properties. In this study, we assess the feasibility of efficiently estimating soil hydraulic properties using Ground-Penetrating Radar (GPR) observations – soil water storage and layer thickness in conjunction with a two-dimensional hydrological model. The results of this study conceptually demonstrate that spatial and temporal observations of soil moisture in the active layer during a rain event are sufficient for inverse estimation of soil hydraulic parameters. The proposed method depends on the lateral water redistribution controlled by the undulating frost table and/or the intensity and duration of the precipitation. We suggest that this method could be used for seasonal-scale estimation of soil hydraulic properties.
Xicai Pan et al.


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RC1: 'x', Anonymous Referee #1, 11 Jul 2017
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AC1: 'Reply to comments', Xicai Pan, 12 Sep 2017
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AC1: 'Reply to comments', Xicai Pan, 12 Sep 2017
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RC2: 'Review of tc-2017-77', Anonymous Referee #2, 07 Aug 2017
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AC2: 'Reply to comments', Xicai Pan, 12 Sep 2017
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AC2: 'Reply to comments', Xicai Pan, 12 Sep 2017


-
RC1: 'x', Anonymous Referee #1, 11 Jul 2017
-
AC1: 'Reply to comments', Xicai Pan, 12 Sep 2017
-
AC1: 'Reply to comments', Xicai Pan, 12 Sep 2017
-
RC2: 'Review of tc-2017-77', Anonymous Referee #2, 07 Aug 2017
-
AC2: 'Reply to comments', Xicai Pan, 12 Sep 2017
-
AC2: 'Reply to comments', Xicai Pan, 12 Sep 2017
Xicai Pan et al.
Xicai Pan et al.
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