The PhD position is part of the DFG-funded Research Unit "Clock Metrology: A Novel Approach to TIME in Geodesy", which has the overall goal to realize innovative approaches using the observable "time" in geodesy. The advertised position in project "Time as observable in integrated ground and space-based GNSS analysis" is related to deterministic and stochastic modeling of high accuracy clocks in GNSS analysis. In addition to satellite clocks (especially GPS and Galileo), these will be H-masers at observation stations and optical clocks in Geodetic Observatory Wettzell and PTB Braunschweig. The interdisciplinary conception of the Research Unit in physics and geodesy, and novel hardware developments allow to work on highly innovative and exciting research topics. The project work is integrated into the GFZ activities within the International GNSS Service (IGS) in Section 1.1 “Space Geodetic Techniques”.

Your responsibilities:

• Further development of GNSS processing with focus on deterministic and stochastic modeling of satellite and receiver clocks within the Research Unit
• Global and local GNSS evaluations and investigations on the influence of the modeled satellite and receiver clocks on the different geodetic parameters
• Specific investigations and evaluations for the partners in the other nine projects of the Research Unit (e.g., evaluation of new data sets, testing of new models)

Your qualifications:

• Scientific university education in the field of geodesy, mathematics, computer science or physics
• Experience in the analysis of GNSS datasets with scientific software packages
• Experience in satellite orbit determination is an advantage
• Good programming skills in FORTRAN and scripting languages (e.g. Perl, Python)
• Very good command of the English language, both written and spoken
• Willingness to collaborate in an interdisciplinary and international research environment
• High motivation and personal responsibility