Articles | Volume 20, issue 1
Hydrol. Earth Syst. Sci., 20, 555–569, 2016
https://doi.org/10.5194/hess-20-555-2016
Hydrol. Earth Syst. Sci., 20, 555–569, 2016
https://doi.org/10.5194/hess-20-555-2016
Research article
01 Feb 2016
Research article | 01 Feb 2016

Joint inference of groundwater–recharge and hydraulic–conductivity fields from head data using the ensemble Kalman filter

D. Erdal and O. A. Cirpka

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Short summary
Groundwater recharge and hydraulic conductivity are both important properties of a groundwater system. However, models using an erroneous conductivity field can be compensated by a false recharge field to construct the same type of hydraulic head observations. In this work we show that prior knowledge is very important when estimating parameter fields from ambiguous data (such as head observations). If the prior information is reasonable, the joint parameter estimation can be possible.