TY - JOUR
T1 - Organics in the stratosphere
T2 - new insights from weather balloon flights conducted in France
AU - Benoit, Roland
AU - Vernier, Hazel
AU - Vernier, Jean Paul
AU - Joly, Lilian
AU - Dumelié, Nicolas
AU - Krysztofiak, Gisèle
AU - Vieille, Loïc
AU - Delpeux, Sandrine
AU - Crevoisier, Cyril
AU - Dagaut, Philippe
AU - Berthet, Gwenaël
N1 - Publisher Copyright:
© The Author(s) 2025.
PY - 2025/12/1
Y1 - 2025/12/1
N2 - Atmospheric aerosols significantly influence the Earth’s climate, yet they remain a major source of uncertainty in climate projections. Here, we present a set of unique offline analysis of organics collected from the ground to the stratosphere with ultimate sensitivity using a new balloon-borne sampling technique deployed on simple weather balloons. Activated and functionalized carbon fabrics were used to target chemical compounds in the gaseous and aerosol forms during three flights over France. Ultra-high-resolution mass spectrometry, enabling the detection of thousands of organic compounds, and highlighted high-carbon-number organics, indicating oligomerization in long-lived tropical stratospheric air masses. Our measurements suggest that large stratospheric sulfate aerosols from volcanic eruptions could play a role in the formation of secondary aerosols in internally mixed particles and may explain the presence of organics with higher carbon numbers. These measurements revealed a drop in the number of unsaturated carbons at higher altitudes. (Figure presented.)
AB - Atmospheric aerosols significantly influence the Earth’s climate, yet they remain a major source of uncertainty in climate projections. Here, we present a set of unique offline analysis of organics collected from the ground to the stratosphere with ultimate sensitivity using a new balloon-borne sampling technique deployed on simple weather balloons. Activated and functionalized carbon fabrics were used to target chemical compounds in the gaseous and aerosol forms during three flights over France. Ultra-high-resolution mass spectrometry, enabling the detection of thousands of organic compounds, and highlighted high-carbon-number organics, indicating oligomerization in long-lived tropical stratospheric air masses. Our measurements suggest that large stratospheric sulfate aerosols from volcanic eruptions could play a role in the formation of secondary aerosols in internally mixed particles and may explain the presence of organics with higher carbon numbers. These measurements revealed a drop in the number of unsaturated carbons at higher altitudes. (Figure presented.)
UR - https://www.scopus.com/pages/publications/105008175123
U2 - 10.1038/s41612-025-01106-9
DO - 10.1038/s41612-025-01106-9
M3 - Article
AN - SCOPUS:105008175123
SN - 2397-3722
VL - 8
JO - npj Climate and Atmospheric Science
JF - npj Climate and Atmospheric Science
IS - 1
M1 - 221
ER -
