Postdoc in modeling hydrogeology

3 Apr 2024
Job Information

Organisation/Company

École Normale Supérieure

Department

Géosciences

Research Field

Environmental science » Water science

Researcher Profile

First Stage Researcher (R1)

Country

France

Application Deadline

7 Apr 2024 - 00:00 (Europe/Paris)

Type of Contract

Temporary

Job Status

Full-time

Hours Per Week

35

Offer Starting Date

1 May 2024

Is the job funded through the EU Research Framework Programme?

Not funded by an EU programme

Is the Job related to staff position within a Research Infrastructure?

No

Offer Description

There are many different methods for assessing recharge (the proportion of effective rainfall that feeds groundwater). These methods can be categorized according to the following typologies:

    Study of the saturated zone: temporal variations in piezometry, environmental tracers, ... ;
    Study of the unsaturated zone: temporal fluctuations in water content and capillary potential, tracer monitoring, ... ;
    Surface water studies: analysis of river hydrographs, isotopic tracers, ... ;
    Surface balances: surface hydrological balance using a simple reservoir model (eg. Thornthwaite & Matter method), based on water and energy exchanges between the surface (soil-vegetation) and the atmosphere.

On the study site, a surface water balance based on a simple reservoir model has already been used to feed a hydrogeological flow/transport model. However, this relatively simple balance is not completely satisfactory, insofar as 1/ it is not spatialized and therefore does not account for any recharge heterogeneity, and 2/ its reservoir model (RFU) does not allow the reproduction of certain piezometric peaks.

References:

Decharme, Bertrand, Christine Delire, Marie Minvielle, Jeanne Colin, Jean Pierre Vergnes, Antoinette Alias, David Saint-Martin, Roland Séférian, Stéphane Sénési, and Aurore Voldoire. 2019. “Recent Changes in the ISBA-CTRIP Land Surface System for Use in the CNRM-CM6 Climate Model and in Global Off-Line Hydrological Applications.” Journal of Advances in Modeling Earth Systems (2):0–2.

Masson, V., P. Le Moigne, E. Martin, S. Faroux, A. Alias, R. Alkama, S. Belamari, A. Barbu, and A. Boone. 2013. “The SURFEXv7 . 2 Land and Ocean Surface Platform for Coupled or Offline Simulation of Earth Surface Variables and Ocean Fluxes Science.” 929–60.

 

Institute presentation:

The work will be carried out at the ENS geology laboratory. Under the supervision of Florence Habets (LGENS) and Lionel Shaper (CEA/DAM/DIF) at the ENS geology laboratory.

Founded in 1880, the LG ENS is a joint research unit between CNRS and ENS-PSL. Drawing on a long tradition in Earth and environmental sciences, it is home to research covering a wide range of fields - geology, geodesy, geomorphology, geodynamics, marine geophysics, geomechanics, hydrogeology, mineralogy, seismology and tectonics - making it a privileged place for exchanges at the frontiers of themes. The "Surface and Reservoir" host team is a multidisciplinary team whose activities focus on soils and subsoils, and the flow of matter (erosion), carbon and water. These themes are linked to atmosphere and climate, whether on time scales of i) paleoclimate (sedimentary basin formation, geothermal energy), ii) meteorological events (erosion, landslides, floods, drought) or iii) the coming century (evolution/distribution of carbon stocks and water resources). To this end, the team mobilizes laboratory experimental methods, instruments measurement sites (located in various regions: tropical zones, Asia, Europe, etc.), analyzes data and develops models. One of the team's distinctive features is its close links with managers (ADEME, Water Agencies, AFB), research partners and other stakeholders.

 

Requirements

Research Field

Environmental science » Water science

Education Level

PhD or equivalent

Skills/Qualifications

  Expertise in  water & energy balances, heat transfer in soils

    Numerical modeling
    Data analysis
    Good writing skills,
    Fluency in French & English

 

Languages

ENGLISH

Research Field

Environmental science » Water science

Additional Information
Work Location(s)

Number of offers available

1

Company/Institute

departement de Géosciences, ENS

Country

France

City

PAris

Postal Code

75005

Street

rue Lhomond

Geofield

Where to apply

E-mail

[email protected]

Contact

City

Paris

Website

https://www.geologie.ens.fr/

Street

24 rue Lhomond

Postal Code

75231

STATUS: EXPIRED