Chapter

Mechanisms and Effects of Pollutant-Transfer into Forests

pp 21-35

Profiles of Ozone and Surface Layer Parameters Over a Mature Spruce Stand

  • G. EndersAffiliated withInstitute for Bioclimatology and Applied Meteorology, Univesity of Munich
  • , U. TeichmannAffiliated withInstitute for Bioclimatology and Applied Meteorology, Univesity of Munich
  • , G. KrammAffiliated withFraunhofer Institute for Atmospheric Environmental Research

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Abstract

Measurements of ozone profiles above a mature spruce stand lead to the conclusion that either an ozone production takes place close to or within the canopy or a destruction well above it, because at certain times a decrease of ozone with height has been observed. Possible influences of terpenes to this phenomenon are discussed. Fluxes and deposition velocities of ozone are calculated on the basis of the gradient approach. In addition, surface layer parameters and aerodynamic stand characteristics derived from wind velocity, temperature, and humidity profiles are presented.