How can Tropical explosive Volcanic eruptions trigger El Niño?

Myriam Khodri1, Takeshi Izumo1, Jérôme Vialard1, Serge Janicot1, Christophe Cassou2, Matthieu Lengaigne1, Eric Guilyardi3, Guillaume Gastineau1, Juliette Mignot1, Nicolas Lebas1, Alan Robock4 and Michael J McPhaden5, (1)LOCEAN-IPSL, Paris cedex 05, France, (2)CERFACS European Centre for Research and Advanced Training in Scientific Computation, Toulouse Cedex 01, France, (3)LOCEAN-IPSL, Paris, France, (4)Rutgers University, New Brunswick, NJ, United States, (5)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States