The post-doc will be involved in the micromechanical modeling at the polycrystal scale. The aim is to integrate into the polycrystal model slip-system resistances inferred from experimental data, ab initio calculations, and Dislocation Dynamics (DDD). The used polycrystal model will be based on mean-field homogenization methods (self-consistent scheme associated with the “Second-Order” linearization procedure of Ponte Castañeda), although numerical computations from full-field methods could be also performed if necessary. Micromechanical modeling of such material is a challenging task since all mineral phases comprising the upper mantle exhibit an extreme viscoplastic anisotropy at the grain scale, with three or less known independent slip systems. There are many effects to be investigated, important for
both geophysical and material sciences issues, e.g.: strain partition and texture development in multiphase minerals, the rheology of partially melted polycrystals, the introduction of diffusion based mechanisms (such as dislocation climb), etc.
Fellowship Application Deadline: January 2011
Further Fellowship Information and Application
Postdoctoral for project MANTLE RHEOLOGY, France: Micromechanical modeling
Research Scientist Position, International Centre for Biosaline Agriculture, Dubai
In partnership with NASA Goddard Space Flight Center and funded by USAID, the Middle East North Africa – Land Data Assimilation System (MENA-LDAS) is being developed at the International Center for Biosaline Agriculture (ICBA) in Dubai. This research will generate data and scientific insight on regional surface- and ground-water resources.
The position is full-time fixed term (initially six months with the possibility of extension) with a competitive international package. The position is based at the ICBA campus in Dubai, United Arab Emirates.
Required Experience:
* Expertise in analysing GRACE, and if possible MODIS and TRMM data as well.
* Experience in working with numerical models (hydrology, hydrogeology, SVAT or climate).
* proven ability to handle/analyze spatio-temporal data sets relating to environmental monitoring and models as well as to remote sensing.
* Expertise in scientific programming (ideally FORTRAN, Unix or PERL).
* Experience with ENVI and ArcGIS.
Educational qualifications:
Masters-degree level education and advanced skills in Remote Sensing, Hydrological Science, Environmental Science or a related discipline.
Collaboration with the other members of the MENA-LDAS team will be essential to the post, offering ample opportunities to broaden the successful applicant’s expertise.
Scholarship Application Deadline: 31 January 2011
