Louis Chauvet

Experience

IPGP — Paris Institute of Globe Physics

Head of Space Magnetometry Data Processing — Research Engineer (permanent)

Dec, 2024 — Now

Lead of the Payload Data Ground Segment of ESA's NanoMagSat Scout mission (three nanosatellites), while overseeing Swarm data production.

Processing chains and End-to-End simulations for every instrument, with the Open Cosmos-led consortium
Ground segment planning, budget and ESA documentation; management of a team of research engineers

Technical Lead, Space Data Processing

Oct, 2022 — Nov, 2024

Technical lead for all space data processing of the Geomagnetism team.

Four Swarm Level-2 products (geomagnetic field models) developed and delivered to ESA, with OPGC and NOAA
Contribution to geomagnetic field models (DGRF 2020 / IGRF-14 candidate, DIFI daily variations); hiring and training of research engineers

Scientific Computing Expert — Swarm ASM data

Mar, 2021 — Sep, 2022

Owner of the Level-1B and Level-2 data of the Absolute Scalar Magnetometer (CEA-Leti, CNES) on board the three satellites of ESA's Swarm mission.

Three production and validation chains, with bimonthly deliveries and reports to ESA
Data quality tools presented at ESA Swarm Data Quality Workshops

Earlier experience (2)

ONERA — The French Aerospace Lab & CESBIO

End-of-study Research Intern, Optics Department (DOTA), Toulouse

Apr, 2020 — Oct, 2020

Estimated tree biophysical and biochemical properties (leaf pigments, leaf area index, water content) of a Californian woodland savanna from airborne hyperspectral images, to assess the future HYPXIM (CNES) and SBG (NASA) missions at 8 m and 30 m resolution (report).

Image classification, 3D radiative transfer simulations (DART) and look-up-table inversion
CNES HyperMED project, with UC Davis (CSTARS)

CAPANOVI — Vocalyx

Software Developer Intern

Sept, 2018 — Mar, 2019

Development and maintenance of an Android and iOS app for people with aphasia.

Publications & Talks

2026 (5)

Article Beggan C. D. et al. International Geomagnetic Reference Field: the fourteenth generation. Earth, Planets and Space, 78, 127.
Article Beggan C. D. et al. Evaluation of candidate models for the 14th generation International Geomagnetic Reference Field. Earth, Planets and Space, 78, 126.
Article Jenner M., Coïsson P., Hulot G., Chauvet L. et al. On the peculiar properties of extremely low frequency lightning generated whistlers detected at low Earth orbit altitudes close to the magnetic equator. Geophysical Research Letters, 53, e2025GL121525.
Article Yang Y., Zeren Z., Hulot G. et al. Second generation of CSES global geomagnetic field model (CGGM-2) and associated candidate models for IGRF-14. Earth, Planets and Space, 78, 33.
Article Hulot G., Chauvet L., Deborde R. et al. A DGRF 2020 candidate model only based on Swarm ASM experimental vector mode data improved through a dedicated post-calibration strategy. Earth, Planets and Space, 78, 24.

2025 (9)

Article Coïsson P., Chauvet L., Jenner M. et al. Global occurrences of whistlers detected in the Extremely Low Frequencies during Absolute Scalar Magnetometer burst mode acquisition campaigns of the Swarm mission. Journal of Space Weather and Space Climate, 15, 58.
Article Chulliat A., Chauvet L., Hulot G. et al. Climatological models of non-polar geomagnetic daily variations using the DIFI methodology with Swarm and CHAMP satellite data. Journal of Space Weather and Space Climate, 15, 46.
Article Emsley A. J., Beggan C., Callow A. et al. Swarm absolute scalar magnetometer burst mode: observed ELF signals and their origins. Journal of Space Weather and Space Climate, 15, 37.
Dataset Hulot G., Chauvet L., Deborde R. Swarm Alpha ASM-V data, version 06XX. IPGP Research Collection.
Dataset Hulot G., Chauvet L., Deborde R. Swarm Bravo ASM-V data, version 06XX. IPGP Research Collection.
Conference Jenner M. et al. The peculiar propagation of equatorial Extremely Low Frequency whistlers. AGU Fall Meeting, SA51B-1127.
Conference Hulot G. et al. A DGRF 2020 candidate model only based on Swarm ASM experimental vector mode data. EGU General Assembly, EGU25-9887.
Conference Hulot G. et al. The upcoming ESA Scout NanoMagSat mission, a nanosatellite constellation to further improve geomagnetic field and ionospheric environment monitoring and modeling. EGU General Assembly, EGU25-9287.
Conference Jenner M. et al. Ray tracing of the equatorial Extremely Low Frequency whistlers detected by the Swarm mission. EGU General Assembly, EGU25-7098.

2024 (1)

Article Jenner M., Coïsson P., Hulot G. et al. Total Root Electron Content: a new metric for the ionosphere below low Earth orbiting satellites. Geophysical Research Letters, 51(15), e2024GL110559.

2023 (2)

Conference Hulot G. et al. Ten years of operation of Swarm's absolute magnetometers, lessons learnt and prospect for the NanoMagSat nanosatellite constellation project. EGU General Assembly, EGU23-5709.
Conference Coïsson P. et al. Swarm Absolute Scalar Magnetometer burst mode: from instrument validation to routine observation of intense lightning activity. EGU General Assembly, EGU23-5167.

2022 (2)

Conference Coïsson P. et al. Lightning-generated whistlers detected simultaneously by Swarm satellites in the ELF. AGU Fall Meeting, AE16A-02.
Conference Hulot G. et al. Swarm ASM burst-mode L1b data and the L2 whistler product they allow to derive. ESA Living Planet Symposium.

2021 (1)

Conference Coïsson P. et al. Analysis of remarkable whistler events in the ELF recorded by Swarm satellites. AGU Fall Meeting, AE22A-06.

Education

ISAE-Supaero · Diplôme d'Études Supérieures 2019 — 2020

Space systems, orbital systems and satellite telecommunications. Student project with Airbus Defence and Space: Sizing of a constellation in very Low Earth Orbit.
IMT Atlantique · Diplôme d'Ingénieur 2016 — 2020

Signal and image processing, machine learning, computer science and telecommunications.

Skills

Space data: Mission data processing (Level-0 to Level-2), ground segment, End-to-End simulation, data quality control
Scientific computing: Signal processing, geomagnetic field modelling (spherical harmonics, inverse problems), Python, Matlab, Java, Shell, Git
Leadership: Project management with ESA and industrial partners, team supervision and training
Languages: French (native), English (fluent), German (intermediate), Japanese (basic), French Sign Language (basic)

Associations

Workaway · Volunteer 2018

Volunteer farm work in Norway.
IMT Atlantique — Students Union · Communication Manager 2017 — 2018

Organised extra-curricular activities and ran their communication (posters, trailers, social media).

Outside Interests

Badminton
Biking
Hiking
Music (piano, computer music)
Movies
Trees
Birds