Members of the MCO Group

Group leader

Dr. Gholamhossein (Mohsen) Bagheri

Mohsen BagheriMohsen Bagheri studied mechanical engineering at the Perisan Gulf Univeristy (BA) and Shahid Bahonar University (MSc), Iran, before doing his PhD at the University of Geneva, Switzerland. During his PhD he carried out experimental and numerical investigations on dynamics of irregular particles in laminar and turbulent flows, for which he received his doctorate in 2015. Shortly after he was awarded an 18-months Swiss National Science Foundation scholarship to join the institute as a guest postdoc and now he is a senior researcher. His current research interests include experimental investigation of cloud microphysics and turbulence with the CloudKite. He is also involved in the cloud measurements carried out at the research station Schneefernerhaus (UFS) near Zugspitze.


Dr. Freja Nordsiek

Freja NordsiekFreja Nordsiek studied Physics and received her BS at Michigan Technological University (USA) in 2010, where she worked on the clustering of electrically charged, gravitationally settling, inertial particles in turbulence (cloud droplets are an example of such particles) with Prof. Dr. Raymond A. Shaw. In 2015 she received her PhD in Physics from the University of Maryland College Park (USA) with Prof. Dr. Daniel P. Lathrop, where she experimentally investigated Rayleigh-stable Taylor-Couette flow and granular electrification. She joined the institute in December 2015 as a postdoctoral researcher, and has focused primarily on the CloudKite Project. Dr. Nordsiek is interested in the dynamics of cloud particles in the atmosphere, particularly their spatial arrangement and relative movement at close ranges approaching the collision scale; which is important to understanding cloud evolution . On the CloudKite Project, she has focused on the inline holographic imaging system, the Instrument Box's computer systems and operational software, laser safety, and avionics.

Dr. Oliver Schlenczek

Oliver SchlenczekOliver Schlenczek studied meteorology at the University of Mainz, where he received his Diplom (M.Sc. equivalent) in 2012. In January 2018 he obtained his PhD in experimental meteorology at the University of Mainz where he worked in the field of applied optics and cloud physics. He joined the institute in October 2017. In his previous position he developed an airborne holographic cloud particle spectrometer, characterized the instrument in the laboratory and obtained measurements of cloud droplets and ice crystals from various cloud types in the arctic, the mid latitudes and the subtropics using three different aircraft and the helicopter-borne platform ACTOS. His recent work is about developing and characterizing the inline holographic imaging system of the CloudKite and investigating the microphysics of liquid-phase, mixed-phase and ice clouds on spatial scales between some hundred micrometers and some centimeters.

PhD students

Marcel Schöder

Marcel SchöderMarcel Schöder studied Physics at Université Paris-Sud and at the Georg August University of Göttingen where he graduated as Master of Science in June 2018. In his Master thesis, he used atomic force microscopy, spinning disc confocal laser scanning microscopy to investigate cell-substrate adhesion and cell migration of Dictyostelium discoideum on 3D printed sinusoidal surface topographies in the Laboratory for Fluid Physics, Pattern Formation and Biocomplexity (Max Planck Institute for Dynamics and Self-Organization). In November 2018, he joined the CloudKite Project of the same department as a PHD student to study cloud dynamics and cloud microphysics. His recent work is about developing an instrument box that measures cloud and atmospheric dynamics, thermodynamics and about investigating cloud droplet dynamics with the help of particle image velocimetry and interferometric particle imaging.

Master Students

Philipp Höhne

Philipp HöhnePhilipp Höhne studied Physics at the University of Göttingen from 2012 on and obtained his B.Sc. in 2016. In his bachelor thesis he worked on x-ray waveguides in different materials. Currently he is doing his M.Sc. in Göttingen. Philipp Höhne joined the institute in 2018 as part of his master thesis, during which he developed systems to investigate cloud droplet size distributions using interferometric particle imaging, worked with particle droplet sizing instruments like the FCDP by SPEC inc., developed relative humidity and temperature probing and took care of various software and electronic problems within the CloudKite project.

Torben Neumann

Torben NeumannTorben Neumann is an undergraduate physics student at the University of Göttingen. He obtained his bachelor’s degree in 2017 at the Max Planck Institute for Dynamics and Self-Organization developing an airborne Particle Image Velocimetry (PIV) setup for atmospheric clouds and continued to work on that topic as an Internship. In December 2018 he started to design a particle dispersion system as a subproject of his master thesis. There he will analyse the bottleneck effect in fully developed turbulence in the variable density turbulence tunnel.

Former members

Niklas Tönsing (Bachelor)