The APARC International Project Office (IPO) is responsible for the coordination of scientific and administrative aspects of the APARC project and its activities under the oversight of the APARC Scientific Steering Group.
APARC IPO Team
Office Sponsor
The APARC Office in Jülich is sponsored by
Contact the APARC Office in Jülich
Dr. Rolf Müller Director phone: +49 2461 61 3828 email:
Rolf did his Ph.D work at the Max-Planck-Institut für Chemie in Mainz and obtained his Ph.D. from the Free University of Berlin. He works at the Forschungszentrum Jülich since 1995 and is the head of the theory group at the Institute of Energy and Climate research (IEK-7). The theory group has developed the Chemical Lagrangian model of the Stratosphere (CLaMS) and is also active in other fields including the support of measurement campaigns. He is also the deputy director at the IEK-7 and is a lecturer at the University of Wuppertal.
Ines received her Ph.D. in Atmospheric and Climate Science from ETH Zurich under the supervision of Thomas Peter. In her thesis, she studied polar stratospheric clouds (PSCs) through field, laboratory, and modeling work. Together with her colleagues, she demonstrated the importance of heterogeneous nucleation of solid PSC particles using detailed box models. She then moved to Forschungszentrum Jülich, where her postdoctoral research aimed at improving PSC formation parameterizations within the Chemical Lagrangian Model of the Stratosphere (CLaMS) for global modeling studies. During this time, Ines was co-leader of the PSC SPARC activity. SPARC has always played an important role in her scientific career and she is very happy to support the International Project Office of now APARC as Scientific Officer.
Born and educated in Senegal, Mohamadou (Moha) pursued his undergraduate and graduate studies in physics in France, at the University of Aix-Marseille. In 2013, Moha obtained his PhD at the Laboratoire de Météorologie Dynamique in France on the subject of variability and trends in the stratospheric circulation. For his studies he used a combination of reanalysis-driven Lagrangian models, climate models, and observations. After his PhD, he extended his experience with post-docs in the US, Spain, and Germany and worked on stratosphere-troposphere dynamical coupling, in particular the application of data science and machine learning to understand upper tropospheric and lower stratospheric processes. As part of his work as research scientist at the FZJ, Moha is responsible for APARC’s scientific outreach with the goals to foster partnerships between early-, mid-career, and established scientists in the Global South and North, data accessibility, public awareness, and capacity building. As part of this vision, Moha will take a lead in organising APARC training activities for early career scientists from both the Global South and North.
Dr. Lars Hoffmann Scientific Officer phone: +49 2461 61 1978 email:
Lars received his Ph.D. in Physics from the University of Wuppertal in Germany. For more than two decades, he worked at Forschungszentrum Jülich on a wide range of topics, including atmospheric modeling, infrared remote sensing and radiative transfer, and high-performance computing. Lars has been actively involved in various research initiatives focusing on areas such as the intercomparison and validation of global reanalyses, and observational and modeling studies of stratospheric gravity waves. Currently, Lars is Head of Department of High Performance Computing in Applied Science and Engineering at the Jülich Supercomputing Center (JSC). He is responsible for the coordination and supervision of JSC’s contributions to the APARC Project Office.
Dr. Olaf Stein Scientific Officer phone: +49 2461 61 2370 email:
Olaf has more than 20 years of experience in atmospheric modelling. He graduated as meteorologist at University of Bonn on statistical anlyses of weather varibility. Afterwards, his research concentrated on global modeling of tropospheric and stratospheric chemistry at the Research Centre Jülich. He worked in the EU projects GEMS and MACC as well as for the Copernicus Atmospheric Monitoring System (CAMS) by implementing a chemical transport scheme into ECMWF’s IFS model. Olaf is member of the Simulation Laboratory Climate Science at the Jülich Supercomputing Centre, responsible for Earth System Modelling applications and development including ICON. As PI in the Helmholtz Pilot Lab ExaESM he managed ESM dwarf developments and separation of concerns. In the Joint Lab ExaESM he is activity lead for Exascale ESM workflow scalability.
