HUMI 17 – WP1
2016-2017
NUMBER OF ROOMS USED
4
PROJECT DURATION
12 MONTHS
GOALS
To highlight, in a controlled environment, a correlation between the oxygen isotopic composition (¹⁷O-excess) of phytoliths (amorphous silica particles produced, among other things, by fescue grass, used here as a model plant) and the relative humidity of atmospheric air.
Past dynamics of continental atmospheric humidity and vegetation: contributions from the triple oxygen isotope composition
Researchers
Anne Alexandre ; Christine Vallet-Coulomb ; Corine Sonzoni ; Sandrine Pauchet ; Clément Piel ; Clément Outrequin
Publications
Voigt, C., Alexandre, A., … Ogée, J. (2023). Examination of the parameters controlling the triple oxygen isotope composition of grass leaf water and phytoliths at a Mediterranean site: a model–data approach, Biogeosciences, 20, 2161–2187.
Outrequin, C., Alexandre, A., … Voigt, C. (2021). The triple oxygen isotope composition of phytoliths, a new proxy of atmospheric relative humidity: controls of soil water isotope composition, temperature, CO2 concentration and relative humidity. Climate of the Past, 17, 1881-1902.
Alexandre, A., Landais, A., … Roy, J. (2018). The triple oxygen isotope composition of phytoliths as a proxy of continental atmospheric humidity: insights from climate chamber and climate transect calibrations. Biogeosciences Discussions, 15, 3223–3241.
