Research Engineer/Post-Doctoral Student (M/F): Modeling the dynamics of the mesosphere

23 Mar 2024
Job Information

Organisation/Company

CNRS

Department

Laboratoire "Atmosphères et Observations Spatiales"

Research Field

Environmental science
Environmental science » Earth science
Environmental science » Global change

Researcher Profile

First Stage Researcher (R1)

Country

France

Application Deadline

12 Apr 2024 - 23:59 (UTC)

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

The mission consists of evolving a 3D digital atmospheric model with primitive equations extending from the ground to 120 km altitude with a vertical resolution around one kilometer. The forcing of the model will be carried out in the lower part of the model based on analyzes from the European center. The objective is to test whether the model better represents the variability of the mesosphere than current analyzes from the European center. This will involve adjusting the altitude domains and the intensity of the restoring force between the model itself, the ECMWF analysis data and the MSIS climatological model. Then it will be a matter of validating the simulations and atmospheric variability from lidar data distributed in different parts of the world.

The activities consist of
• Make the model operational
• Validate the model from Lidar data
• Launch a first experiment

Traduction de texte
Texte source
1 663 / 5 000
Résultats de traduction
Résultat de traduction
The objective of this study is to carry out sensitivity experiments in order to better understand the triggering elements of sudden stratospheric heating and the switch into one of the standard modes of winter evolution of the middle atmosphere (Mariaccia et al., 2022) . The other application concerns the appearance of inversions in the mesosphere (Marriacia et al., 2023). The model will be forced using analyzes from the European center. This work is partly supported by the DGA for military applications.
The work will take place in Guyancourt at LATMOS. The LATMOS (Atmospheres and Space Observations Laboratory) is a mixed research unit specializing in the study of the fundamental physicochemical processes governing the terrestrial and planetary atmospheres and their interfaces with the surface, the ocean, and the interplanetary environment. The laboratory has a dual location in Paris and Guyancourt. For this, the Laboratory has developed strong instrumental expertise, built innovative instruments deployed from the ground and sometimes put into orbit or set off to meet other bodies in the solar system. Numerical atmospheric models are also developed and used to interpret the various observations. The recruited collaborator will work in close collaboration with the scientific manager of the project on the Guyancourt site, in a team made up of several doctoral students, and researchers from the STRATO department and other colleagues (researchers and engineers) involved on the measurement sites in the mainly part of the NDACC network.
Bibliography

CLASSIFICATION OF STRATOSPHERIC WINTER EVOLUTION INTO SEPARTE SENARRII IN THE NORTHERN HEMISPHERE
Mariaccia A., P. Keckhut, and A. Hauchecorne
Journal of Geophysical Research: Atmospheres, 2022, 127 (13), pp.e2022JD036662. ⟨10.1029/2022jd036662⟩. ⟨insu-03740919⟩

CO-LOCATED WIND AND TEMPERATURE OBSERVATIONS AT MID_LATITUDES DURING MESOSPHERIC INVERSION LAYER EVENTS
Mariaccia, A., P. Keckhut, A. Hauchecorne, S. Khaykin, and M. Ratynski
Geophysical Research Letters: 2023, 127 (13), pp.e2022JD036662. ⟨10.1029/2022jd036662⟩ - insu-03740919

Requirements

Research Field

Environmental science

Education Level

PhD or equivalent

Research Field

Environmental science

Education Level

PhD or equivalent

Research Field

Environmental science

Education Level

PhD or equivalent

Languages

FRENCH

Level

Basic

Research Field

Environmental science

Years of Research Experience

None

Research Field

Environmental science » Earth science

Years of Research Experience

None

Research Field

Environmental science » Global change

Years of Research Experience

None

Additional Information
Eligibility criteria

This mission requires a good knowledge of processes in the middle atmosphere and knowledge of lidar observations and data provided by the European Center.
This position may be suitable for someone who has completed their thesis or an engineer. But it is necessary to:
• Know lidar techniques
• Have experience in analyzing geophysical data
• Have programming skills
• Have experience in instrumentation
• Possess good human relations qualities
• Be independent

Website for additional job details

https://emploi.cnrs.fr/Offres/CDD/UMR8190-PHIKEC0-005/Default.aspx

Work Location(s)

Number of offers available

1

Company/Institute

Laboratoire "Atmosphères et Observations Spatiales"

Country

France

City

GUYANCOURT

Geofield

Where to apply

Website

https://emploi.cnrs.fr/Candidat/Offre/UMR8190-PHIKEC0-005/Candidater.aspx

Contact

City

GUYANCOURT

Website

http://www.latmos.ipsl.fr

STATUS: EXPIRED