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PhD student position: 3D GPR Full-waveform Inversion

Advertising institute: IBG-3 - Agrosphere
Reference number: D045/2014, geophysics, physics, computational geoscience, or any related natural sciences

For our Institute of Bio- and Geosciences - Agrosphere (IBG-3) we are seeking a

PhD Student with a degree in geophysics, physics, electrical engineering, computational geoscience, or related natural sciences

for a 3 year position.

The Institute of Bio- and Geosciences – Agrosphere (IBG-3) conducts research to improve our understanding of hydrological and biogeochemical processes in terrestrial systems. Studies focus on the fate and behavior of anthropogenic and geogenic substances, the analysis of exchange processes and nutrient dynamics in the soil-plant-atmosphere continuum. A combination of experiments, modelling and innovative observation technologies is used to bridge the gap between model, process and management scale. Its research contributes to the sustainable and resource-conserving use of soils and water and to the quantification of the effect of climate and land use change on terrestrial ecosystems. We offer a competent and interdisciplinary working environment, as well as an excellent framework in the areas of experiments and modeling.
The IBG-3 Institute is part of the Centre for High-Performance Scientific Computing in Terrestrial Systems (HPSC TerrSys) of the Geoverbund. The Centre applies advanced supercomputing technologies for integrated modelling of terrestrial systems with respect to the hydrologic, energy and biogeochemical cycles.

Job Description:
At IBG-3, advanced modeling and inversion algorithms are developed and applied for a wide range of hydrogeophysical studies using ElectroMagnetic Induction (EMI) or Ground Penetrating Radar (GPR) systems. The primary objective of this project is to develop and extend existing 2D full-waveform inversion algorithms for 3D GPR data with the ultimate goal of obtaining quantitative information on hydrogeophysical properties. Specific components of the project will include: (i) improving the forward model used in the inversion, (ii) writing a new algorithm to accommodate the full-waveform inversion of 3D surface GPR data, (iii) recording, processing and inverting two GPR data sets, one acquired under controlled conditions and one acquired from a hydrogeological TERENO test site. The project offers the unique opportunity to connect novel full-waveform techniques to real data in a state-of-the-art computational environment.

Requirements:

  • University degree in geophysics, physics, electrical engineering, computational geoscience, or related natural sciences with a good final grade; preferably with knowledge in wave propagation techniques
  • Advanced knowledge of numerical methods
  • Experience in (parallel) programming preferably in C/C++ and/or Fortran
  • Strong English writing and communication skills.

We Offer:

  • working in an interdisciplinary environment as well as excellent facilities for hydrogeophysical research and numerical simulation and inversion studies;
  • Opportunities to be part of the national and international scientific community;
  • A three-months internship with an international research group.

For further information please contact Prof. Dr. Jan van der Kruk,
e-mail: j.van.der.kruk@fz-juelich.de

Equal opportunity is a cornerstone of our staff policy. Applications from disabled persons are welcomed.

Please send your application – quoting the reference number - with the relevant documentation to: Mr. K. Beumers, Institut für Bio- und Geowissenschaften,
Forschungszentrum Jülich GmbH, 52425 Jülich, Germany,
e-mail: k.beumers@fz-juelich.de.


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