Joel Savarino

Professional Experiences :

ORCID 0000-0002-6708-9623
ResearchID H-9730-2012

  • 2022-present. Senior Scientist 1st class(Directeur de Recherche), CNRS, Glaciology Laboratory, Grenoble, France
  • 2013-2022. Senior Scientist 2nd class (Directeur de Recherche), CNRS, Glaciology Laboratory, Grenoble, France
  • 2002-2013. Research Scientist (Chargé de Recherche), CNRS, Glaciology Laboratory, Grenoble, France
  • 1996-2002. Research Associate, Dept. Chemistry & Biochemistry, U. California, San Diego, USA

Education :

2009 Habilitation à Diriger des Recherches
1996 Ph.D. Glaciology, Grenoble-Alpes University
1992 M. Sc. Geophysics, Grenoble-Alpes University

Current and Recent Responsabilities :

since 2019 Board Member Habilitation committee
2016-2021 Member elected National Committee of the CNRS
Since 2018 Nominated steering committee of International in Ice core Sciences (IPICS) and Euro-PICS (European counterpart)
Since 2019 Scientific coordinator PANDA platform
Since 2020 Associated editor, Atmosphere, MDPI press
Since 2016 Associated editor, The Cryosphere, EGU publication
2015-2016 Member elected, Laboratory board
Since 2015 Co-management of Geochemistry Workshop series
Since 2014 Associated editor, ELEMENTA : Science of the Anthropocene
Since 2013 Review Panel, Marie Sklodowska Curie Fellowship, European Commission
Since 2004 Field project coordinator, Antarctica (17 campaigns)
2014-2015 Member review committee panel LabEx OSUG@2020
Since 2004 Advisor 15 PhDs, 12 undergraduates

Research Interests :

Polar Chemistry : Contrary to the common sense, the snow pack is far from being a passive and nonreactive medium. It is in fact a true reactive chemical reactor. Under the influence of sun light, snow chromophore are decomposed into very reactive species, triggering a succession of radical-molecule chain reaction that profoundly modified the chemical state of the polar atmosphere. For more than two decades, we are exploring the consequences that the photo-chemical denitrification of the snow has on :

  • the halogen-NOx interaction
  • the ozone budget
  • the archiving of the atmospheric signal in the ice cores.

Stable Isotope Chemistry : I use the stable isotope geochemistry as a probing tool to explore the state of change of the matter. Because mass is the main factor differentiating isotopes of the same element, the distribution of the stable isotopes in the matter scales with the mass. Mass-dependent fractionation processes are the dominant way of changing the isotope partition in Nature. However, a restricted set of processes are not following the mass scale and fractionate the isotopes mass-independently. Because these processes are so limited and specific, their propagation within the Earth’s chemical system can be tracked at an unprecedented level of precision. With this tool, we can track the nature of the volcanic eruptions trapped in ice cores, follow at the chemical bond level the oxidative chain propagation in the atmosphere, observe the transfer of the matter between the atmosphere, the cryosphere, the hydrosphere and the biosphere.

Analytical Chemistry : We are constantly developing new instrumentation, isotope protocols and laboratory experiments to solve our scientific questions. Vacuum technology, mass spectrometry, gas and liquid chromatography, SPE and continuous flow analysis are commonly used in our laboratory. We are specialized in measuring the stable isotopes of sulfur, nitrogen, oxygen and carbon.

Most Recent Publications

2024

Aroskay, A., Martin, E., Bekki, S., Le Pennec, J., Savarino, J., Temel, A., et al. (2024). Geological Evidence Of Extensive N- Fixation By Volcanic Lightning During Very Large Explosive Eruptions. Proceedings Of The National Academy Of Sciences Of The United States Of America, 1211(7).
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2023

Celli, G., Cairns, W., Scarchilli, C., Cuevas, C., Saiz-Lopez, A., Savarino, J., et al. (2023). Bromine, Iodine And Sodium Along The Eaiist Traverse: Bulk And Surface Snow Latitudinal Variability. Environmental Research, 2392.
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Chaillot, J., Dasari, S., Fleurbaey, H., Daeron, M., Savarino, J., & Kassi, S. (2023). High-Precision Laser Spectroscopy Of H<Sub>2</Sub>S For Simultaneous Probing Of Multiple-Sulfur Isotopes. Environmental Science-Advances, 2(1), 78–86.
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Lamothe, A., Savarino, J., Ginot, P., Soussaintjean, L., Gautier, E., Akers, P., et al. (2023). An Extraction Method For Nitrogen Isotope Measurement Of Ammonium In Alow-Concentration Environment. Atmospheric Measurement Techniques, 161(171), 4015–4030.
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Neubauer, C., Kantnerova, K., Lamothe, A., Savarino, J., Hilkert, A., Juchelka, D., et al. (2023). Discovering Nature?S Fingerprints: Isotope Ratio Analysis On Bioanalytical Mass Spectrometers. Journal Of The American Society For Mass Spectrometry, 343(4), 525–537.
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2022

Aviles, G. P. F., Spadini, L., Sacchi, E., Rossier, Y., Savarino, J., Ramos, O. E., et al. (2022). Hydrogeochemical and nitrate isotopic evolution of a semiarid mountainous basin aquifer of glacial-fluvial and paleolacustrine origin (Lake Titicaca, Bolivia): the effects of natural processes and anthropogenic activities. Hydrogeology Journal, 303(1), 181–201.
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Barbero, A., Grilli, R., Frey, M., Blouzon, C., Helmig, D., Caillon, N., et al. (2022). Summer Variability Of The Atmospheric No2 : No Ratio A Dome C On The East Antarctic Plateau. Atmospheric Chemistry And Physics, 222(181), 12025–12054.
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Cao, Y., Jiang, Z., Alexander, B., Cole-Dai, J., Savarino, J., Erbland, J., et al. (2022). On The Potential Fingerprint Of The Antarctic Ozone Hole In Ice-Core Nitrate Isotopes: A Case Study Based On A South Pole Ice Core. Atmospheric Chemistry And Physics, 222(202), 13407–13422.
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Jiang, Z., Savarino, J., Alexander, B., Erbland, J., Jaffrezo, J. L., & Geng, L. (2022). Impacts Of Post-Depositional Processing On Nitrate Isotopes In The Snow and the overlying atmosphere at Summit, Greenland. Cryosphere, 161(7), 2709–2724.
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Lim, S., Hwang, J., Lee, M., Czimczik, C. I., Xu, X. M., & Savarino, J. (2022). Robust Evidence Of C-14, C-13, And N-15 Analyses Indicating Fossil Fuel Sources for Total Carbon and Ammonium in Fine Aerosols in Seoul Megacity. Environmental Science & Technology, 565(111), 6894–6904.
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