Modelling Critical Levels of Ozone for the Forested Area of Austria : Modification of the AOT40 Consept : Meeting on "Forest under climate, enhanced UV and air pollution" August 25-30, 2004, Oulu, Finland, IUFRO, 7.04.00
The ozone risk impact for trees has been calculated by modelling the AOT40 for forest areas based on the Austrian Forest Inventory, ozone measuring data 1993 (120 monitoring sites), meteorological data and an elevation model. However, the basic AOT40 approach does not reflect the health status of Norway spruce in Austria. Therefore, additional thoughts are outlined in the following approaches taking into consideration the adaption of trees to the longtime ozone level and the ozone uptake into the sub-stomata cavity.
