Missions
The services bring transversal skills and knowledge to the different teams, axes, and poles of the laboratory. Their know-how allows advanced instrumental developments, essential in our projects.
Services
Mechanical facility
Pascal Gisquet & Gleb Porkovski
Missions: The mechanical workshop is a common service of the laboratory, with an annual recurrent budget of 4 k€, and an essential support for the Geochemistry and Experimental Mineralogy platform, having for main activities:
– Realization of experimental setups
– Manufacturing of mechanical parts
– Maintenance of experimental devices
Any person of the laboratory can call upon the workshop. Its services are also requested by other OMP laboratories for the realization of unique parts (sensors, supports, autoclaves, samplers, cells).
Equipment: 2 lathes, 1 numerically controlled and 1 conventional, Milling machine, Column drilling machine, Reciprocating saw, Portable circular saw, Band saw, TIG welding machine, Portable screwdriver, Portable drilling machine
Electronic facility
Loïc Drigo
Missions: The main missions of the service are to ensure the design, development and tuning of electronic devices, as well as the exploitation of experimental devices, in close relation with the research teams, platforms and transverse axes of the laboratory.
The service participates in the choice of instrumental systems (sensors/actuators/measuring instruments), in the definition of the acquisition system of the physical data to be converted into measurable electrical quantities, then in the formatting of this data, as well as in its conservation and storage.
The skills implemented allow the study and realization of mixed analog/digital cards, as well as the instrumentation of complex systems.
The design of electronic boards (schematic/placement/routing), the simulation of circuits and the 3D implementation in a mechanical system are done daily using computer-aided design (CAD) tools.
The automation of certain tasks and functions is managed by programming microcontrollers. These programmable components can be implemented, for example, for connected object projects (IoT) as well as for embedded system projects. The department also designs human/machine interfaces (HMI) to manage equipment control, acquisition and storage of physical data. It also ensures, in part, the maintenance and repair of the instruments of the park and the commercial devices used in the experiments.
Equipment: Altium Designer (Electronic CAD/Simulation), Electrical Characterization Instruments Resources, Arbitrary function generator (DC- 10MHz), Fluke 115 portable multimeter, Synchronous LF detection (1mHz-102kHz : SR830), Manufacturing resources, Soldering/desoldering station (assembly, repair), Hot air station, Boa smoke extractor + cartridge filter, Resources in computer development of instrumentation, LabVIEW (Management of man-machine interfaces: HMI), Microcontroller programming: Arduino IDE
Numerical modeling and calculation
Roland Martin & Marc Blanchard
Missions:
To overcome technological barriers and better model certain physical phenomena at different scales of time and space, the permanent workshop serves various purposes:
- Facilitating interaction, exchange, collaboration, and the development of transversal projects in physico-numerical modeling for integrated Earth system models at various scales of time and space (from daily to millions of years), from near-surface to lithospheric scales, and their couplings with the atmosphere and oceans.
- Organizing seminars on methods and study objects in terms of modeling and data processing, in connection with the “Modeling and Databases Workshop” at OMP.
- Identifying technological and methodological barriers in certain scientific themes at different levels of expertise (users and/or developers).
- Disseminating researchers’ expertise through training sessions at GET (e.g., OpenFoam by L. Orgogozo, GIS by Y. Auda, ArcGIS by V. Regard).
- Establishing a mapping and assessment of skills and resources (human resources, computing codes, visualization software, and computing resources).
- Identifying needs and requests for resources.
- Contributing to the development of the ANITI 3IA (Artificial Intelligence Institute) project, notably through the integrative IP6 project: “AI for a sustainable planet: from monitoring to integrated resource management.
Tools:
- Inverse Modeling in Geochemistry: Used for weathering balances or geochemical balances of elements like mercury (speciation and deposition). Contacts: Patrick Seyler and Laurence Maurice.
- Altimetric Data Analysis and Processing Platform: Developed mostly in JAVA by G. Cochonneau and E. Roux. Includes functions for extracting time series, selecting altimetric data, interpolation, and leveling of limnimeter stations. Some functionalities are integrated into the UModelis platform. Contact: Gérard Cochonneau.
- Umodelis Platform: Set of plugins (rainfall-runoff models, hydrodynamic and sedimentological models) developed in Java for the open-source GIS Udig and interfaced with a database. Used to create a spatialized modeling platform to study spatial and temporal variability of water and material fluxes, especially in the Amazon basin. Contacts: Gérard Cochonneau and Marie-Paule Bonnet.
- HYDRACCESS: Platform for processing, analyzing, and representing hydrological data, both spatially and temporally. Contact: Gérard Cochonneau.
- Wavelet Statistical Analysis: MATLAB routines for analyzing signals using wavelet transforms, applied to hydrological data. Contact: David Labat.
- MORPHOMETRY: Script primarily using the GRASS GIS to calculate various geomorphological variables in a watershed (average slope, longitudinal profile, steepness index, hypsometry, slope-area ratio, etc.). Contact: Sébastien Carretier.
- COSMOEROSIONRATE: Script mainly using GRASS GIS to calculate average erosion rates in a watershed from cosmogenic isotope concentration data. Accounts for shading, muons, and the distribution of quartz-rich lithology. Contact: Sébastien Carretier.