6533b86dfe1ef96bd12c96f9

RESEARCH PRODUCT

Unmanned aerial vehicle measurements of volcanic carbon dioxide fluxes

Andy HodsonGaetano GiudiceAlessandro AiuppaSergio GurrieriGiancarlo TamburelloAndrew J. S. Mcgonigle

subject

event.disaster_typegeographygeography.geographical_feature_categorySpectrometerMeteorologyAtmospheric sciencesPlumeSettore GEO/08 - Geochimica E VulcanologiaVolcanic GasesGeophysicsFlux (metallurgy)Impact craterVolcanoMagmaPanacheGeneral Earth and Planetary Scienceseventvolcano monitoring unmanned aerial vehicles volcanic gas monitoringGeology

description

[i] We report the first measurements of volcanic gases with an unmanned aerial vehicle (UAV). The data were collected at La Fossa crater, Vulcano, Italy, during April 2007, with a helicopter UAV of 3 kg payload, carrying an ultraviolet spectrometer for remotely sensing the SO 2 flux (8.5 Mg d- 1 ), and an infrared spectrometer, and electrochemical sensor assembly for measuring the plume CO 2 /SO 2 ratio; by multiplying these data we compute a CO 2 flux of 170 Mg d -1 . Given the deeper exsolution of carbon dioxide from magma, and its lower solubility in hydro-thermal systems, relative to SO 2 , the ability to remotely measure CO 2 fluxes is significant, with promise to provide more profound geochemical insights, and earlier eruption forecasts, than possible with SO 2 fluxes alone: the most ubiquitous current source of remotely sensed volcanic gas data.

10.1029/2007gl032508http://hdl.handle.net/10447/66628