Journal
ADVANCES IN WATER RESOURCES
Volume 63, Issue -, Pages 22-37Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.advwatres.2013.10.014
Keywords
Heterogeneity; Parameter identification; Data assimilation; Uncertainty; Groundwater modeling
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Funding
- Spanish Ministry of Science and Innovation [CGL2011-23295]
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Parameter identification is an essential step in constructing a groundwater model. The process of recognizing model parameter values by conditioning on observed data of the state variable is referred to as the inverse problem. A series of inverse methods has been proposed to solve the inverse problem, ranging from trial-and-error manual calibration to the current complex automatic data assimilation algorithms. This paper does not attempt to be another overview paper on inverse models, but rather to analyze and track the evolution of the inverse methods over the last decades, mostly within the realm of hydrogeology, revealing their transformation, motivation and recent trends. Issues confronted by the inverse problem, such as dealing with multiGaussianity and whether or not to preserve the prior statistics are discussed. (C) 2013 Elsevier Ltd. All rights reserved.
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