Jülich, 11 January 2016 – Global climatic processes are complex and many questions are still open. Climatologists from Forschungszentrum Jülich now aim to answer two of them: What processes influence ozone depletion in the lowermost stratosphere? And what effect do the elusive gravity waves have on climate? To solve these issues, Jülich scientists together with colleagues from several German research institutions are heading north from Kiruna in Sweden on board the research aircraft HALO for measurement flights. At altitudes of up to 14 kilometres, the GLORIA detector developed at Jülich will also be put into operation.