Institute for Solar-Terrestrial Physics
Area of research:
The position is suitable for part-time employment.
At the Institute of Solar-Terrestrial Physics of the German Aerospace Center (DLR), solar-terrestrial relationships are studied with the focus on the ionosphere and their relation to phenomena and effects of space weather. Modern communication and navigation systems as well as high-resolution radar techniques of remote sensing work with radio waves whose propagation is significantly influenced by the electrically conductive part of the Earth’s atmosphere, the ionosphere. In view of constantly increasing demands on accuracy, availability and reliability of the radio signals used, it is necessary to have the most comprehensive knowledge possible of the propagation properties of the ionosphere. For this purpose and to understand the basic solar-terrestrial relationships, comprehensive observations of the state of the ionosphere and various space weather factors including solar wind as well as significant coupling processes with the magnetosphere, thermosphere, atmosphere and lithosphere are required.
The department of Space Weather Observations deals with ionosphere measurement and inversion techniques using ground and space borne sensors. The observation data are used to reconstruct the 3D electron density distribution of the geo-plasma environment by means of data fusion, reconstruction and assimilation techniques.
The investigation of ionospheric propagation of radio waves in the low and very low frequency (VLF) range and their correlation with atmospheric and space weather effects are of great interest for reliable long range communications. Besides solar radiation, which is the main driver of the ionosphere, especially the lower layers are subject to atmospheric variability. Often observed wave like structures or travelling ionospheric disturbances are the primary manifestation of forcing from the lower atmosphere. In order to understand the dynamic behaviour of the lower ionosphere, the propagation parameters of radio waves shall be measured, analysed and simulated. Modern radio control systems operated on long radio waves are often subject to high demands on transmission reliability. Therefore, the knowledge of ionospheric impact factors and their variability is of practical importance.
The Institute for Solar-Terrestrial Physics is therefore looking for staff to work on the following topics:investigation and simulation of VLF signal propagation, deduction of ionospheric processes, and reconstruction of the lower ionosphere (D-layer) long-term analysis of various ground-based ionosphere measurements as well as satellite-based measurements of solar radiation to exclude space weather impacts investigation of coupling processes between the D-layer and atmospheric processes (especially mesosphere) comparative studies on mesospheric radar wind measurements and global atmospheric simulation data sets installation and extension of VLF receiving stations implementation of VLF data processing systems based on the programming languages C++, Python and Matlab on Linux and Microsoft Windows systems Documentation of work results in publications
You will bring in your excellent skills into an international successful and highly motivated research team with long scientific expertise in ionosphere and space weather research. Here, you will experience a very good working atmosphere in a well-equipped and modern research site situated in a beautiful and livable region of Germany.