Horizon 1 1 17 ACL : Articles dans des revues avec comité de lecture répertoriées par l'AERES Journal of Geophysical Research : Oceans e2026JC024008 [14 p.] tsunami volcanic flow Stromboli field observation laboratory experiments ITALIE STROMBOLI VOLCAN 2026 fdi:010097127 ENG Journal of Geophysical Research : Oceans 2169-9275 ISI:001763493900001 5 10.1029/2026jc024008 https://www.documentation.ird.fr/hor/fdi:010097127 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/2026-06/010097127.pdf 131 Horizon (IRD) Stromboli, Italy, is a unique volcano worldwide with near-continuous eruptions monitored by a multi-sensor network. Between 2019 and 2021, three events produced pyroclastic density currents along the Sciara del Fuoco that entered the sea and generated tsunamis, providing a unique data set linking flow dynamics to tsunami generation near the source. We compare these field observations-first crest amplitude, trough and full waveform-with laboratory experiments to assess lab-to-field upscaling and predictive reliability of volcanic-flow tsunamis. Using key dimensionless parameters, we show that existing experiments overestimate relative flow mass, limiting direct scaling to Stromboli events and motivating new experiments. An empirical scaling for experimental pyroclastic flows entering water, however, predicts satisfactorily observed tsunami amplitudes. Both laboratory and field data also reveal a consistent three-wave pattern, enabling the development of predictive relationships for the trough-to-amplitude ratio of the leading wave and total waveform energy. This study marks a first step toward bridging laboratory developments with field observations, opening new paths for volcanic-tsunami hazard assessment. 032 ; 066 ; 020 UR163