On influence of long-range transport of pollen grains ontopollinating seasons

摘要

Pollen grains can be transported over hundreds and even thousandsof kilometres and significantly affect pollen concentration in manyregions making it less dependent upon the local conditions. In thisstudy we have used the Finnish operational dispersion modelSILAM to delineate birch pollen source areas as well as to forwardsimulations for pollen long-range transport. We have considered anepisode of very high birch pollen concentration in Finland in April1999 both in forward and inverse point of view. As a representativeof easterly located areas, we considered also Moscow region. Sourcedelineation for early pollen peaks is done for years 1999, 2002 and2004