Advances in Geosciences www.adv-geosci.net 1680-7340 1680-7359 6 1st Alexander von Humboldt International Conference 2006 10.5194/adgeo-6-267-2006 http://www.adv-geosci.net/6/267/2006/ http://www.adv-geosci.net/6/267/2006/adgeo-6-267-2006.html http://www.adv-geosci.net/6/267/2006/adgeo-6-267-2006.pdf 267 272 2006-03-03 The 1997 El Niño impact on clouds, water vapour, aerosols and reactive trace gases in the troposphere, as measured by the Global Ozone Monitoring Experiment D. Loyola P. Valks T. Ruppert A. Richter T. Wagner W. Thomas R. van der A R. Meisner German Aerospace Center (DLR), Rem. Sens. Technol. Inst. (IMF), Oberpfaffenhofen, 82334 Wessling, Germany German Aerospace Center (DLR), German Rem. Sens. Data Center (DFD), Oberpfaffenhofen, 82334 Wessling, Germany University of Bremen, P.O. Box 33 04 40, 28334 Bremen, Germany University of Heidelberg, Im Neuenheimer Feld 229, 69120 Heidelberg, Germany Deutscher Wetterdienst (DWD), P.O. Box 10 04 65, 63004 Offenbach, Germany Royal Netherlands Meteorological Institute (KNMI), P.O.Box 201, 3730 AE De Bilt, The Netherlands The El Niño event of 1997/1998 caused dry conditions over the Indonesian area that were followed by large scale forest and savannah fires over Kalimantan, Sumatra, Java, and parts of Irian Jaya. Biomass burning was most intense between August and October 1997, and large amounts of ozone precursors, such as nitrogen oxides, carbon monoxide and hydrocarbons were emitted into the atmosphere. In this work, we use satellite measurements from the Global Ozone Monitoring Experiment (GOME) sensor to study the teleconnections between the El Niño event of 1997 and the Indonesian fires, clouds, water vapour, aerosols and reactive trace gases (nitrogen dioxide, formaldehyde and ozone) in the troposphere.