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Publications [#58311] of Amilcare Porporato

Papers Published

1. Isham, V. and Cox, D.R. and Rodriguez-Iturbe, I. and Porporato, A. and Manfreda, S., Representation of space-time variability of soil moisture, Proc. R. Soc. Lond. A, Math. Phys. Eng. Sci. (UK), vol. 461 no. 2064 (2005), pp. 4035 - 55 [1568]
   (last updated on 2007/04/09)

   Abstract:
   A simplified spatial-temporal soil moisture model driven by stochastic spatial rainfall forcing is proposed. The model is mathematically tractable, and allows the spatial and temporal structure of soil moisture fields, induced by the spatial-temporal variability of rainfall and the spatial variability of vegetation, to be explored analytically. The influence of the main model parameters, reflecting the spatial scale of rain cells, the soil storage capacity, the rainfall interception and the soil water loss rate (representing evaporation and deep infiltration) is investigated. The variability of the spatially averaged soil moisture process, and that averaged in both space; arid time, are derived. The present analysis focuses on spatially uniform vegetation conditions: a follow-up paper will incorporate stochastically heterogeneous vegetation

   Keywords:
   evaporation;moisture;rain;soil;vegetation;