The effect of aerosols on northern hemisphere wintertime stationary waves
Anna Lewinschal and Annika Ekman discuss some first results on aerosol effects on wintertime stationary waves in the northern hemisphere. The global climate model EC-Earth has been used to investigate how anthropogenic aerosols may affect large-scale atmospheric circulation patterns. The aerosol input in the model differentiates between five types of aerosols; sulphate, black carbon, organic carbon, dust and sea salt and gives an “aerosol optical depth" for each type of aerosol. These preliminary results indicate that anthropogenic sulphate aerosols can cause a substantial change in the stationary wave pattern, with possible modification of regional climate change signals compared to simulations without aerosol effects taken into account.The article (pdf, 470 kB)
The whole issue of the Newsletter (pdf, 540 kB)
