Sensitivity analysis of a parameterization of the stomatal component of the DO3SE model for Quercus ilex to estimate ozone fluxes

Giacomo Alessandro Gerosa, Rocío Alonso, Susana Elvira, María J. Sanz, Lisa D. Emberson, Victoria Bermejo, Benjamín S. Gimeno

Research output: Contribution to journalArticlepeer-review

34 Citations (Scopus)

Abstract

A sensitivity analysis of a proposed parameterization of the stomatal conductance ( gs) module of the European ozone deposition model (DO3SE) for Quercus ilex was performed. The performance of the model was tested against measured gs in the field at three sites in Spain. The best fit of the model was found for those sites, or during those periods, facing no or mild stress conditions, but a worse performance was found under severe drought or temperature stress, mostly occurring at continental sites. The best performance was obtained when both fphen and fSWP were included. A local parameterization accounting for the lower temperatures recorded in winter and the higher water shortage at the continental sites resulted in a better performance of the model. The overall results indicate that two different parameterizations of the model are needed, one for marine-influenced sites and another one for continental sites.
Original languageEnglish
Pages (from-to)473-480
Number of pages8
JournalEnvironmental Pollution
Volume155
DOIs
Publication statusPublished - 2008

Keywords

  • Holm oak
  • mediterranean evergreen forest
  • ozone critical levels
  • ozone flux
  • stomatal conductance

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