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, S. 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), S. 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, S. 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, S. 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), S. 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), S. 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)
First Light für Sunrise III: Die ersten Tests mit Sonnenlicht waren erfolgreich. Ende Mai dürfte das ballongetragene Sonnenobservatorium startklar sein.
Erst eisige Kälte, dann Mitternachtssonne: Am Polarkreis bereitet das Team den Flug des ballongetragenen Sonnenobservatoriums vor – und hofft auf ein solares Feuerwerk.
Bewerbungsfrist 1 Oktober 2023. Promotionsprojekte in Planetenwissenschaften, Sonnenphysik, Astrophysik, Magnetfelder der Sonne, Helioseismologie, Asteroseismologie ...
In der mittleren Korona der Sonne entdeckt ein Forscherteam netzartige, dynamische Plasmastrukturen – und einen wichtigen Hinweis auf den Antrieb des Sonnenwindes.