2-year PostDoc opportunity : Accurate and efficient geophysical potential field response on imp[...]

euraxess.ec.europa.eu - Jobboard; France; Sur place; EUR 40 000 - 60 000; Plein temps

Résumé du poste

A leading research university in France seeks a postdoctoral researcher in Geosciences. The successful candidate will focus on improving potential field response computations and work within a multidisciplinary team. A PhD in Geosciences, Mathematics, or Computer Science is essential. The position offers a salary between €2600 and €3500 per month, and unique professional development opportunities.

Prestations

Social benefits including 44 days of paid leave annually

Budget for attending national and international conferences

Qualifications

• The candidate must have a PhD or equivalent in Geosciences, Mathematics, or Computer Science.
• Excellent command of English is required.

Responsabilités

• Improve accuracy of potential field response computation.
• Test numerical schemes and parallel implementations.
• Collaborate with a multidisciplinary team of researchers.

Connaissances

Numerical techniques

Programming (C++)

Data integration

Formation

PhD in Geosciences

PhD in Mathematics

PhD in Computer Science

Description du poste

Organisation/Company Université de Lorraine - GeoRessources Department RING, GeoRessources Research Field Geosciences » Geology Researcher Profile Recognised Researcher (R2) Established Researcher (R3) Positions Postdoc Positions Country France Application Deadline 15 Dec 2025 - 23:59 (Europe/Paris) Type of Contract Temporary Job Status Full-time Is the job funded through the EU Research Framework Programme? Other EU programme Is the Job related to staff position within a Research Infrastructure? No

Offer Description

Objectives

The integration of multi-modal geological and geophysical data is an essential task to gain knowledge on subsurface heterogeneity and sustainably manage the associated resources (heat, H2 or CO2 storage capacity, mineral resources, groundwater, etc.). To this end, three-dimensional numerical representation and simulation have undergone significant development and now make it possible to solve joint inverse problems, see for instance(Moorkamp et al., 2016; Wellmann & Caumon, 2018). However, a compromise often needs to be made between the representational accuracy of geological features, the accuracy of the geophysical computation and the computational speed. For example, geological structural models are typically converted to gridded models in potential field inversions(Giraud, Caumon et al., 2024; Giraud, Lindsay & Jessell, 2021; Guillen et al., 2008; Wellmann et al., 2017; Zheglova, Lelièvre & Farquharson, 2018). This induces geometric approximations which may raise problems in the presence of sharp variations caused by geological faults and rugged topography. The goal of this postdoc is to improve the accuracy of potential field response computation on realistic and accurate rock unit geometries while keeping acceptable performance.

Several numerical and computational techniques will be tested and compared to assess and maximize the efficiency / accuracy ratio in practical inversion tasks. This will be addressed by testing different numerical schemes and parallel implementations, starting from an existing in-house CPU / GPU C++ code. These methods will be tested first on synthetic models for which analytical solutions exists, before considering more complex 3D geological models. After this, the successful candidate may extend the approach to other geophysical problems (e.g. electromagnetics) or consider advanced geometric-based inversion techniques combining multiple level sets geomodel updating and transdimensional techniques(Giraud, Ford et al., 2024; Herrero et al., 2023).

Context

The postdoctoral researcher will be based at Université de Lorraine and will work in a multidisciplinary environment with numerical geologists, geophysicists and mathematicians. The scientist will join the GeoRessources Laboratory in the RING team [1] , a pluridisciplinary group of 12-15 researchers and graduate students, which has a broad academic and industrial collaboration network. She/he will collaborate closely with Prof. Guillaume Caumon and Dr. Ayoub Belhachmi (UL), Dr. Modeste Irakarama (Independent researcher based in the USA), Dr. Jeremie Giraud (University of Western Australia), and Dr. Frédéric Dubois (BRGM - French Geological survey). The successful candidate will join the network of researchers involved in the Digital Earth project [2] of the PEPR Sous-sol, Bien Commun.

The postdoctoral scholarship (2600 to 3500 EUR monthly depending on experience) includes full salary, social benefits (incl. 44 days of paid leave annually) , and budget to attend national and international conferences. The goal of the postdoc is to produce, present and publish innovative methodologies and the associated open-source software. Particular attention will be put on the professional development of the successful candidate and on establishing connections both with industrial and academic partners.

Nancy is a UNESCO World Heritage city with a vibrant student life and a rich cultural agenda, only 90 minutes away from Paris, Luxembourg and Strasbourg.

The contract is expected to start during Q2 of 2025, depending on the successful candidate’s availability.

• A CV, including list of publications and contact information for two or more referees
• The PhD thesis
• If available, the PhD review and defense reports.

Where to apply

E-mail [e-mail]

Requirements

Research Field Geosciences » Geology Education Level PhD or equivalent

Research Field Geosciences » Other Education Level PhD or equivalent

Research Field Mathematics » Applied mathematics Education Level PhD or equivalent

Research Field Computer science » Programming Education Level PhD or equivalent

Languages ENGLISH Level Excellent

Additional Information

Work Location(s)

Number of offers available 1 Company/Institute RING, Ecole Nationale Supérieure de Géologie Country France State/Province Meurthe et Moselle City VANDOEUVRE LES NANCY Postal Code 54500 Street 2 RUE DU DOYEN ROUBAULT Geofield