Stochastic simulation of soil particle-size curves in heterogeneous aquifer systems through a Bayes space approach
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Menafoglio_et_al-2016-Water_Re ...
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FInal Published Version
Affiliation
Univ Arizona, Dept Hydrol & Atmospher SciIssue Date
2016-08Keywords
geostatisticsfunctional compositions
particle-size distribution
groundwater
hydrogeology
Bayes spaces
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AMER GEOPHYSICAL UNIONCitation
Stochastic simulation of soil particle-size curves in heterogeneous aquifer systems through a Bayes space approach 2016, 52 (8):5708 Water Resources ResearchJournal
Water Resources ResearchRights
© 2016. American Geophysical Union. All Rights Reserved.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
We address the problem of stochastic simulation of soil particle-size curves (PSCs) in heterogeneous aquifer systems. Unlike traditional approaches that focus solely on a few selected features of PSCs (e.g., selected quantiles), our approach considers the entire particle-size curves and can optionally include conditioning on available data. We rely on our prior work to model PSCs as cumulative distribution functions and interpret their density functions as functional compositions. We thus approximate the latter through an expansion over an appropriate basis of functions. This enables us to (a) effectively deal with the data dimensionality and constraints and (b) to develop a simulation method for PSCs based upon a suitable and well defined projection procedure. The new theoretical framework allows representing and reproducing the complete information content embedded in PSC data. As a first field application, we demonstrate the quality of unconditional and conditional simulations obtained with our methodology by considering a set of particle-size curves collected within a shallow alluvial aquifer in the Neckar river valley, Germany.Note
First Published: 2 August 2016; 6 Month Embargo.ISSN
00431397Version
Final published versionSponsors
European Union [640979]Additional Links
http://doi.wiley.com/10.1002/2015WR018369ae974a485f413a2113503eed53cd6c53
10.1002/2015WR018369