David Kappel

Dr. David Kappel is a Postdoctoral Researcher in Planetary Geophysics at the Institute of Geological Sciences, Department of Earth Sciences, Freie Universität Berlin. He is affiliated with the Planetary Sciences and Remote Sensing group and serves as a member of the PLATO PMC Performance Team (PPT). His research focuses on analyzing data from planetary missions, with particular expertise in comet 67P/Churyumov-Gerasimenko and Venus exploration through instruments like Rosetta's VIRTIS and Venus Express.

Dr. Kappel earned his PhD from the University of Potsdam, Germany, with research focused on "Multi-spectrum retrieval of maps of Venus' surface emissivity in the infrared" (2015), building on earlier work titled "Development of multispectrum retrieval techniques and their application to Venus' deep atmosphere and surface" (2012) conducted in collaboration with the Institut für Physik und Astronomie at University of Potsdam and the Institut für Planetologie at WWU Münster.

His research spans multiple areas of planetary science, with a strong emphasis on cometary composition analysis and Venus surface mineralogy. Dr. Kappel has made significant contributions to understanding water ice distribution, ammonium salts, and organic materials on comet 67P's surface through Rosetta mission data. For Venus research, he specializes in developing techniques for orbital observations through thick clouds, with expertise in spectroscopy, radiative transfer modeling, and instrument calibration. His work bridges laboratory experiments, computational modeling, and spacecraft observations to extract meaningful scientific insights from complex planetary datasets.

Analysis of Dr. Kappel's recent publications reveals a clear progression toward increasingly sophisticated data processing techniques for planetary missions. His work consistently focuses on correcting instrument artifacts, geometric preprocessing, and spectral analysis of data from missions like Rosetta and Venus Express. There's a strong interdisciplinary trend connecting cometary science with Venus exploration through shared analytical methodologies, demonstrating how techniques developed for one planetary body can be adapted for another.

Dr. Kappel has been involved with several major space missions and international collaborations:

• Rosetta mission: Extensive analysis of VIRTIS instrument data from comet 67P/Churyumov-Gerasimenko
• Venus Express: Retrieval of surface emissivity maps and atmospheric properties
• VERITAS mission: Development of the Venus Emissivity Mapper for surface composition analysis
• EnVision mission: Contributing to global mineralogy studies of Venus
• PLATO mission: Member of the Performance Team for exoplanet research

His collaborative network spans European research institutions including INAF (Italy), CNRS (France), and DLR (Germany), with publications appearing in leading journals such as Nature Astronomy, Icarus, and Astronomy & Astrophysics. While specific grant details aren't provided, his research aligns with major space agency priorities including ESA's Comet Interceptor mission and NASA's Venus exploration initiatives.

As part of the Planetary Sciences and Remote Sensing working group at Freie Universität Berlin, Dr. Kappel contributes to a research environment focused on analyzing data from current and future planetary missions. The group maintains strong connections with space agencies and instrument teams, particularly for missions studying Venus and small solar system bodies, positioning Dr. Kappel at the forefront of planetary data analysis techniques.