sorry GEM
http://www.meteociel.fr/modeles/cmc_cartes.php?code=15&ech=384&mode=0&carte=1
ah thanks summer blizzard and yarmy.
Yarmy found this Measurements from recent eruptions such as Mount St. Helens, in 1980, El Chichon, Mexico in 1982, and Mount Pinatubo, Philippines in 1991, clearly show the importance of sulfur aerosols in modifying climate, warming the stratosphere, and cooling the troposphere. SO2 converts to sulfuric acid aerosols that block incoming solar radiation and contribute to ozone destruction. So under this SO2 could cool the troposphere agreed how could models take this into consideration. Has iceland caused enough to shift weather patterns, I now not sure.