Shaposhnikov, D. S.; Grigalashvili, M.; Medvedev, A. S.; Sonnemann, G. R.; Hartogh, P.: Analytical Approximations of the Characteristics of Nighttime Hydroxyl on Mars and Intra-Annual Variations. Solar System Research 57, pp. 1 - 13 (2023)
Kulikov, M. Y.; Belikovich, M. V.; Grygalashvyly, M.; Sonnemann, G. R.; Ermakova, T. S.; Nechaev, A. A.; Feigin, A. M.: Daytime ozone loss term in the mesopause region. Annales Geophysicae 35 (3), pp. 677 - 682 (2017)
Sonnemann, G. R.; Hartogh, P.; Berger, U.; Grygalashvyly, M.: Hydroxyl layer: trend of number density and intra-annual variability. Annales Geophysicae 33, pp. 749 - 767 (2015)
Sonnemann, G. R.; Grygalashvyly, M.: Global annual methane emission rate derived from its current atmospheric mixing ratio and estimated lifetime. Annales Geophysicae 32, pp. 277 - 283 (2014)
Sonnemann, G. R.; Hartogh, P.; Berger, U.; Lübken, F.-J.; Grygalashvyly, M.: Anthropogenic effects on the distribution of minor chemical constituents in the mesosphere/lower thermosphere - A model study. Advances in Space Research 50 (5), pp. 598 - 618 (2012)
Hartogh, P.; Jarchow, C.; Sonnemann, G. R.; Grygalashvyly, M.: Ozone distribution in the middle latitude mesosphere as derived from microwave measurements at Lindau (51.66 N, 10.13 E). Journal Geophysical Research 116, D04305 (2011)
Hartogh, P.; Sonnemann, G. R.; Grygalashvyly, M.; Jarchow, C.: Ozone trends in the mid-latitude stratopause region based on microwave measurements at Lindau (51.66° N, 10.13° E), the ozone reference model, and model calculations. Advances in Space Research 47 (11), pp. 1937 - 1948 (2011)
Sonnemann, G. R.; Hartogh, P.; Grygalashvyly, M.; Song, L.; Berger, U.: The quasi 5-day signal in the mesospheric water vapor concentration at high latitudes in 2003 - A comparison between observations at ALOMAR and calculations. Journal Geophysical Research 113, D04101 (2008)
Sonnemann, G. R.; Grygalashvyly, M.: The relationship between the occurrence rate of major stratospheric warmings and solar Lyman-alpha flux. Journal Geophysical Research 112 (D20), D20101 (2007)
Becker, E.; Grygalashvyly, M.; Sonnemann, G. R.; Hartogh, P.; Jarchow, C.: GWS mixing and effective diffusivity concept for minor chemical constituents in the MLT. 11th Annual, Meeting Asia Oceania Geosciences Society, Sapporo, Japan (2014)
Grygalashvyly, M.; Becker, E.; Sonnemann, G. R.; Hartogh, P.: Advanced model and theory of the OH* layer. 11th Annual Meeting, Asia Oceania Geosciences Society, Sapporo, Japan (2014)
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).
Application deadline 1 October 2024. PhD projects in planetary science, solar and stellar physics, solar magnetism, heliophysics, helioseismology, asteroseismology, ...
Two scientific associations have awarded Prof. Dr. Thorsten Kleine the title "Geochemistry Fellow" for his contributions to the understanding of how the Solar System was formed.
Call for applications: PhD positions in planetary science, solar physics, stellar physics, with a starting date in September 2024, at the IMPRS in Göttingen.