Analysis of dry deposition measurements in Storgama: The CoTAG method compared with wet deposition fluxes and modelled estimates.

Dry deposition velocity measurements for nitrogen and sulphur compounds have been carried out for 18 months at a semi-alpine site in Southern Norway (Storgama, 59° 01‟ N 8° 32‟ E, 600 masl), using the conditional time averaged gradient method. The results are compared with estimated wet deposition fluxes to assess the total pollutant input to the ecosystem, as well as with two sets of values estimated from a big-leaf dry deposition module, applying two different land use categories (short grass and forbs, tundra) with local micrometeorological parameters as input.