Dependence of rainfall interception on drop size - A comment

R. Uijlenhoet*, J. N.M. Stricker

*Corresponding author for this work

Research output: Contribution to journalComment/Letter to the editorScientificpeer-review

14 Citations (Scopus)

Abstract

In a series of three articles Calder, Hall and colleagues have recently presented an extension of Calder's original stochastic model of rainfall interception. In their model, the dependence of rainfall interception on raindrop size is explicitly taken into account. All raindrops are assumed to have the same characteristic size, the so-called median-volume raindrop diameter D0, which is taken to be a power law function of the rain rate R. However, the D0-R relationship used in their model results from an erroneous interpretation of the general theory of the raindrop size distribution recently proposed by Sempere Torres and colleagues. As a result, this relationship is not consistent with the postulated underlying raindrop size distribution. Moreover, it seriously underestimates D0 for a given R as compared to the consistently derived D0-R relationships and to the D0-R relationship reported in a classical article on the subject of raindrop size distributions. This may seriously affect the model results presented by Calder, Hall and colleagues.

Original languageEnglish
Pages (from-to)157-163
Number of pages7
JournalJournal of Hydrology
Volume217
Issue number1-2
DOIs
Publication statusPublished - 1999
Externally publishedYes

Keywords

  • Interception
  • Raindrop size distribution
  • Rainfall
  • Scaling

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