A derived PDF for the initial soil moisture in a catchment

Juan B Valdes, Mario Díaz-Granados, Rafael L. Bras

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The probability distribution of the initial soil moisture concentration of a catchment was derived based on the one-dimensional infiltration-exfiltration process of a layer of soil. Analytical expressions were found for the initial and final soil moisture concentration during a storm event. These analytical expressions were then used in simulation experiments for different combinations of climate and soil characteristics to evaluate the average soil moisture concentration at the beginning of a storm and its variance. A beta PDF was then fitted to completely characterize its probability distribution. Finally, a general expression for both the mean and the variance of the initial soil moisture is given based only on climate and soil characteristics.

Original languageEnglish (US)
Pages (from-to)163-176
Number of pages14
JournalJournal of Hydrology
Volume113
Issue number1-4
DOIs
StatePublished - 1990
Externally publishedYes

Fingerprint

soil moisture
soil water
catchment
probability distribution
climate
soil
infiltration (hydrology)
infiltration
simulation
experiment
distribution

ASJC Scopus subject areas

  • Soil Science
  • Earth-Surface Processes

Cite this

A derived PDF for the initial soil moisture in a catchment. / Valdes, Juan B; Díaz-Granados, Mario; Bras, Rafael L.

In: Journal of Hydrology, Vol. 113, No. 1-4, 1990, p. 163-176.

Research output: Contribution to journalArticle

Valdes, Juan B ; Díaz-Granados, Mario ; Bras, Rafael L. / A derived PDF for the initial soil moisture in a catchment. In: Journal of Hydrology. 1990 ; Vol. 113, No. 1-4. pp. 163-176.
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