Qin, J.; Zou, H.; Futaana, Y.; Ye, Y.; Hao, Y.; Nielsen, E.; Wang, J.: Double-Peak Structures of Martian Nightside Total Electron Content in Strong Crustal Magnetic Cusp Regions. Geophysical Research Letters 48 (7), e2021GL092662 (2021)
Qin, J.; Zou, H.; Ye, Y.; Hao, Y.; Wang, J.; Nielsen, E.: A method of estimating the Martian neutral atmospheric density at 130 km, and comparison of its results with Mars Global Surveyor and Mars Odyssey aerobraking observations based on the Mars Climate Database outputs. Earth and Planetary Physics 4 (4), pp. 408 - 419 (2020)
Qin, J. F.; Zou, H.; Ye, Y. G.; Yin, Z. F.; Wang, J. S.; Nielsen, E.: Effects of Local Dust Storms on the Upper Atmosphere of Mars: Observations and Simulations. Journal of Geophysical Research: Planets 124 (2), pp. 602 - 616 (2019)
Zou, H.; Ye, Y. G.; Wang, J. S.; Nielsen, E.; Cui, J.; Wang, X. D.: A method to estimate the neutral atmospheric density near the ionospheric main peak of Mars. Journal Geophysical Research 121 (4), pp. 3464 - 3475 (2016)
Morgan, D. D.; Gurnett, D. A.; Kirchner, D. L.; Fox, J. L.; Nielsen, E.; Plaut, J. J.: Correction to ``Variation of the Martian ionospheric electron density from Mars Express radar soundings'' (vol 118, pg 4710, 2013). Journal Geophysical Research 118 (7), p. 4710 - 4710 (2013)
Morgan, D. D.; Witasse, O.; Nielsen, E.; Gurnett, D. A.; Duru, F.; Kirchner, D. L.: The processing of electron density profiles from the Mars Express MARSIS topside sounder. Radio Science 48 (3), pp. 197 - 207 (2013)
Zhang, Z.; Nielsen, E.: Using complex independent component analysis to extract weak returns in MARSIS radar data and and their possible relation to a subsurface reflector on Mars. Radio Science 46, RS1007 (2011)
Zou, H.; Lillis, R. J.; Wang, J. S.; Nielsen, E.: Determination of seasonal variations in the Martian neutral atmosphere from observations of ionospheric peak height. Journal Geophysical Research 116, E09004 (2011)
Morgan, D. D.; Gurnett, D. A.; Kirchner, D. L.; Winningham, J. D.; Frahm, R. A.; Brain, D. A.; Mitchell, D. L.; Luhmann, J. G.; Nielsen, E.; Esply, J. R.et al.; Acuña, M. H.; Plaut, J. J. P.: Radar absorption due a corotating interaction region encounter with Mars detected by MARSIS. Icarus 206, pp. 95 - 103 (2010)
Zhang, Z.; Nielsen, E.; Plaut, J. J.; Orosei, R.; Picardi, G.: Ionospheric corrections of MARSIS subsurface sounding signals with filters including collision frequency. Planetary and Space Science 57 (3), pp. 393 - 403 (2009)
Gurnett, D. A.; Huff, R. L.; Morgan, D. D.; Persoon, A. M.; Averkamp, T. F.; Kirchner, D. L.; Duru, F.; Akalin, F.; Kopf, A. J.; Nielsen, E.et al.; Safaeinili, A.; Plaut, J. J.; Picardi, G.: An overview of radar soundings of the martian ionosphere from the Mars Express spacecraft. Advances in Space Research 41, pp. 1335 - 1346 (2008)
Morgan, D. D.; Gurnett, D. A.; Kirchner, D. L.; Fox, J. L.; Nielsen, E.; Plaut, J. J.: Variation of the Martian electron density from Mars Express radar soundings. Journal Geophysical Research 113, A09303 (2008)
Zhang, Z.; Hagfors, T.; Nielsen, E.; Picardi, G.; Mesdea, A.; Plaut, J. J.: Dielectric properties of the Martian south polar layered deposits: MARSIS data inversion using Bayesian inference and genetic algorithm. Journal Geophysical Research 113, E05004 (2008)
Recently new, very sensitive observations of the ExoMars Trace Gas Orbiter (TGO) and its instruments NOMAD (Nadir and Occultation for MArs Discovery) an ACS (Atmospheric Chemistry Suite) became available and initiated a number of interesting scientific questions. Some of them are open PhD projects using the MPS General Circulation Model (MPS-GCM).
The Solar Lower Atmosphere and Magnetism (SLAM) group covers many exciting subjects in solar physics, focussing on the development and testing of highly novel solar instrumentation, reduction and analysis of highest quality solar observations, or improving and developing advanced techniques for the analysis of solar observations.
In the "Solar and Stellar Interiors" department, Laurent Gizon, Jesper Schou, Aaron Birch, Robert Cameron and others offer PhD projects in solar physics and astrophysics. Helioseismology and asteroseismology are used as important tools to study the oscillating Sun and stars.
Turbulence plays a very important role in many applications, ranging from geophysics and astrophysics to engineering. In our solar system, turbulence is often driving by thermal effect, rotation, and magnetic field. In this project you will use high-fidelity simulation tools, including direct numerical simulations, data assimilation, and machine learning, to study the physics of turbulence, focusing on convection and dynamos.
The Planetary Plasma Environments group (PPE) has a strong heritage in the exploration of planetary magnetospheres and space plasma interactions throughout the solar system. It has contributed instruments to several past missions that flew-by or orbited Jupiter (Galileo, Cassini, Ulysses). The PPE participates in the JUICE mission by contributing hardware and scientific expertise to the Particle Environment Package (PEP).
Inversion codes are used to aid the detailed interpretation of solar spectro-polarimetric data. This computer code attempts to find the atmospheric structure that produced an observed spectrum by minimizing the difference between the observed spectrum and a Stokes spectrum.
The MPS is one of the leading institutes worldwide in building instruments for solar research, both for ground based observatories as well as for balloon and space-borne missions. Scientists and engineers of MPS conceive new observing methods and develop novel instruments of highest technological complexity. These instruments are built in house, tested, calibrated, and used at the best solar observatories in the world, or delivered to NASA and ESA to be launched to space.