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Titel:
Aerosol; cycle and influence on the radiation balance = MEMORA: Measurement and Modeling of the reduction of Radiation by Aerosol
 
Auteur(s):
Brink, H.M. ten; Hensen, A.; Khlystov, A.; Dorland, R. van; Jeuken, A.; Velthoven, P. van; Lelieveld, J.; Berg, A. van den; Swart, D.P.J.; Bergwerff, J.B.; Apituley, A.; Veefkind, J.P.
 
Gepubliceerd door: Publicatie datum:
ECN SF 1-6-2001
 
ECN publicatienummer: Publicatie type:
ECN-R--01-003 Overig
 
Aantal pagina's: Volledige tekst:
133 Download PDF  (1505kB)

Samenvatting:
In this project experiments were performed and models were developed and implemented to come to a better assessment of the forcing of the radiation balance by the anthropogenic aerosol. Aerosols exert a forcing because they reflect solar radiation. IPCC estimates that this effect is large, but it also indicates a high uncertainty factor which is mostly due to the short lifetime of the relevant aerosol component in the atmosphere. As a result, the aerosol forcing is a regional phenomenon. The approach followed here was to assess the magnitude of this uncertainty for Europe and quantify the contribution of the various anthropogenic components to the forcing at a representative site. With the help of the chemical speciation the anthropogenic aerosols could be identified. The aim of the study was to provide the tools required for optimized scenario projections of the future aerosol forcing. The major outcome was the large contribution of nitrate to the aerosol radiative forcing in theNetherlands. Other results and accomplishments are discussed in detail below.


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