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arXiv · 1805.06480

In-situ soil parametrization from multi-layer moisture data

Giuliano Vitali·Mirco Iotti·Alessandra Zambonelli
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Abstract

Inversion methodology has been used to obtain, from multi-layer soil probes records, a complete soil parametrisation, namely water retention curve, unsaturated conductivity curve and bulk density at 4 depths. The approach integrates water dynamics, hysteresis and the effect of bulk density on conductivity to extract soil parameters required from most simulation models. The method is applied to sub-sets of data collection, allowing to understand that not every data-sets contains the information required for method convergence. A comparison with experimental bulk-density values show that inversion could give information even with a better adherence to model, as it considers the effect of roots and skeleton. The method may be applied to any type of multi-layer water content probes giving the opportunity to enrich soil parameter availability and reliability.

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BibTeXRIS

Giuliano Vitali, Mirco Iotti, Alessandra Zambonelli. 2018-05-03. In-situ soil parametrization from multi-layer moisture data. https://arxiv.org/abs/1805.06480

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