Gabriele Stiller (PI of P3, Partner of P1 and P2),Dr., is Senior Scientist at IMK, KIT, and has been head of IMK’s satellite remote sensing group since 1995. She has been responsible for the scientific data analysis of the MIPAS/Envisat instrument at IMK, and has, together with her group, developed the retrieval system operated there. She has more than 20 years experience in atmospheric radiative transfer simulations, remote sensing retrieval techniques, and in the study of chemical and physical processes in the atmosphere based on observational data. Her scientific interests include the coupling of the stratosphere to the mesosphere and the troposphere and its chemical impact on the stratosphere, chemical processes in the stratospheric polar winters, and transport in the middle atmosphere. She is author or co-author of more than 120 peer-reviewed publications, with more than 80 of those related to MIPAS/Envisat data analysis and scientific exploitation. She has been involved, partly in a leading or co-ordinating role, in numerous national (DFG, BMBF, DLR) and international (EC, ESA) research projects.

Björn-Martin Sinnhuber, (Co-I of P2), Dr., is a senior scientist in the Institute for Meteorology and Climate Research (IMK-ASF) of the Karlsruhe Institute of Technology (KIT). Before moving to KIT, he was leading the atmospheric modeling group in the “Physics and Chemistry of the Atmosphere” section at the University of Bremen (headed by Prof. Burrows). He has over 15 years of experience in atmospheric chemistry and remote sensing and published or contributed to more than 35 peer reviewed scientific papers. He is co-author of the 2006 and 2010 WMO/UNEP Scientific Assessments of Ozone Depletion and co-chair (together with Mike Kurylo, NASA) of the SPARC initiative on the role of halogens in ozone depletion.