M. Sc. Kay Wohlfarth

I build physical models for big computers to understand infrared spectra of planetary surfaces.

• Light Scattering and Reflectance Spectroscopy of Planetary Surfaces
• Thermal Modeling of Atmosphere-Less Planetary Bodies
• 3D Reconstruction of Planetary Surfaces
• Scientific Computing
• Image and Signal Processing

Light Scattering and Reflectance Spectroscopy

K. S. Wohlfarth, C. Wöhler, A. Grumpe.
Space Weathering and Lunar OH/H2O - Insights from Ab Initio Mie Modeling of Submicroscopic Iron.
Astronomical Journal, vol. 158, no. 2, article no. 80, 2019.
DOI 10.3847/1538-3881/ab26af

K. Wohlfarth, C. Wöhler.
Wavelength-Dependent Seeing Systematically Changes the Normalized Slope of Telescopic Reflectance Spectra of Mercury.
Remote Sensing, vol. 14, article no. 405, 2022.
doi.org/10.3390/rs14020405

M. Hess, C. Wöhler, M. Bhatt, A. A. Berezhnoy, A. Grumpe, K. Wohlfarth, A. Bhardwaj, V. V. Shevchenko.
Pro­cess­es governing the VIS/NIR spectral reflectance behavior of lunar swirls.
Astronomy and Astrophysics, vol. 639, article no. A12, 2020.
DOI 10.1051/0004-6361/201937299

M. Arnaut, K. Wohlfarth, C. Wöhler.
The interaction between multiple nanophase iron particles changes the slope of lunar reflectance spectra. Proc. Europlanet Science Congress, on­line, abstract EPSC2021-770, 2021.


Thermal Modeling

K. Wohlfarth, C. Wöhler, H. Hiesinger, J. Helbert.
An advanced thermal roughness model for airless planetary bodies. Implications for global variations of lunar hydration and mineralogical mapping of Mercury with the MERTIS spectrometer
Astronomy and Astrophysics, Forthcoming article
https://doi.org/10.1051/0004-6361/202245343

K. Wohlfarth, C. Wöhler, H. Hiesinger, J. Helbert
A Fractal Rough Thermal Model for Emissivity Disk-Resolved Validation of a Fractal Rough Thermal Model for the Moon
Lunar and Planetary Science Conference LIII, abstract #2431, 2022.

K. Wohlfarth, C. Wöhler, K. Bauch, M. D'Amore, H. Hiesinger, J. Helbert, A. Maturilli, A. Morlok, M. P. Reitze, N. Schmedemann, A. Stojic, I. Varaharajan, I. Weber.
A Fractal Rough Thermal Model for Emissivity Retrieval of MERTIS Lunar Flyby Spectra.
Lunar and Planetary Science Conference LII, abstract #1241, 2021.

H. Hiesinger, J. Helbert, K. Bauch, M. D'Amore, M. Maturilli, A. Morlok, M. Reitze, A. N. Stojic, I. Varatharajan, I. Weber, K. Wohlfarth, C. Wöhler.
The Mercury Radiometer and Thermal Infrared Spectrometer (MERTIS) at the Moon - First Results and Status Report.
Lunar and Planetary Science Conference LII, abstract #1494, 2021.

3D Reconstruction

M. Hess, M. Tenthoff, K. Wohlfarth, C. Wöhler.
Atmospheric Correction for High-Resolution Shape from Shading on Mars.
Journal of Imaging , vol. 8(6), 158, 2022.
DOI 10.3390/jimaging8060158

O. Ruesch, M. Hess, K. Wohlfarth, T. Heyer, C. Wöhler, T. R. R. Bontognali, C. Orgel, E. Sefton-Nash, J.-L. Josset, J. L. Vago.
Synthetic topography from the decameter to the centimeter scale on Mars for scientific and rover operations of the ESA-Roscosmos ExoMars mission.
Planetary and Space Science, vol. 205, article id. 105301, 2021.
DOI: 10.1016/j.pss.2021.105301

M. Tenthoff, K. Wohlfarth, C. Wöhler.
High Resolution Digital Terrain Models of Mercury.
Remote Sensing, vol. 12, article no. 3989, 2020.
DOI 10.3390/rs12233989

• "Digitale Signalverarbeitung" (WiSe 2018/19, 2019/20, 2020/21,2021/22,2022/23)
• "Signale und Systeme" (SoSe 2018, 2019, 2020,2021,2022)

• "Unmixing of CRISM Hyperspectral Data" - M. Arnaut (BA 2018)
• "Shape from Shading Applied to the Martian Surface: Compensation of Atmospheric Effects" - M. Hess (MA 2019)
• "3D-Rekonstruktion der Merkuroberfläche mit Shape from Shading" - M. Tenthoff (BA 2019)
• "Methode zur Bestimmung von Endgliedern in Mineralmischungen" - R. Mbakop (BA 2019)
• "Lokale Analyse von lunaren Hydroxylvorkommen bezogen auf topografische" - A. Bartsch (BA 2020)
• "Implementierung eines Verfahrens zur Erkennung von Spielkarten" - J. Beck (BA 2020)
• "Spektrales Reddening und Darkening von planetaren Oberflächen" - N. Bergmann (BA 2020)
• "Thermische Modellierung von planetaren Oberflächen: Modellierung und Analyse verschiedener Rauigkeitsskalen" - D. Schauten (BA 2021)
• "Light Scattering of Small Particles on Planetary Surfaces" - M. Arnaut (MA 2021)
• "Simulation der elektromagnetischen Streuung im oberen Mondregolith" - A. Bowkunnyj

2012: Abitur (with distinction), Ernst-Barlach-Gymnasium, Unna
2017: Research Internship, The Hongkong Polytechnic University
2018: Master of Science in Electrical Engineering and Information Technology (with distinction), TU Dortmund University
2018 – now: Ph.D. candidate about computational modeling for infrared spectroscopy of planetary surfaces
2013-2018: Scholarship of the German Academic Scholarship Foundation (Studienstiftung des Deutschen Volkes)