Please use this identifier to cite or link to this item:
http://hdl.handle.net/2122/11924
DC Field | Value | Language |
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dc.date.accessioned | 2018-09-03T07:09:20Z | en |
dc.date.available | 2018-09-03T07:09:20Z | en |
dc.date.issued | 2018-08-25 | en |
dc.identifier.uri | http://hdl.handle.net/2122/11924 | en |
dc.description.abstract | Gas measurements using unmanned aerial vehicles, or drones, were undertaken at Turrialba volcano, Costa Rica, and Masaya volcano, Nicaragua, in 2016 and 2017. These two volcanoes are the largest time‐integrated sources of gas in the Central American Volcanic Arc, and both systems are currently extremely active with potential for sudden destabilization. We employed a series of miniaturized drone‐mounted instrumentation including a mini‐DOAS, two MultiGAS instruments, and an optical particle counter, supplemented by ground‐based measurements. Payloads were typically 1–1.5 kg and flight times were 10–15 min. The measurements were both accurate and precise due to the inherent sensitivity of the instrumentation and the high gas concentrations, which the drones were able to sample. The quality of data obtained by our drones was comparable to that obtained by our ground‐based measurements. At Turrialba in April 2017, we measured an average SO2 flux of 1,380 ± 280 T/day, CO2/SO2 of 6.5, and H2O/SO2 of 27.8. Using these values, we calculated a CO2 flux of 6,170 T/day and an H2O flux of 10,790 T/day. At Masaya in May 2017, the average SO2 flux was 1,560 ± 180 T/day, with CO2/SO2 of 3.9 and H2O/SO2 of 62.3, giving a mean CO2 flux of 4,150 T/day and mean H2O flux of 27,330 T/day. The elevated carbon and water fluxes and ratios are indicative of underlying magmas that are enriched in these components, resulting in the high levels of activity observed. | en |
dc.language.iso | English | en |
dc.relation.ispartof | Journal of Geophysical Research: Solid Earth | en |
dc.relation.ispartofseries | /123 (2018) | en |
dc.title | Using Drones and Miniaturized Instrumentation to Study Degassing at Turrialba and Masaya Volcanoes, Central America | en |
dc.type | article | en |
dc.description.status | Published | en |
dc.description.pagenumber | 6501-6520 | en |
dc.identifier.doi | 10.1029/2018JB015655 | en |
dc.description.obiettivoSpecifico | 6V. Pericolosità vulcanica e contributi alla stima del rischio | en |
dc.description.journalType | JCR Journal | en |
dc.contributor.author | Stix, John | en |
dc.contributor.author | de Moor, J. Maarten | en |
dc.contributor.author | Rüdiger, Julian | en |
dc.contributor.author | Alan, Alfredo | en |
dc.contributor.author | Corrales, Ernesto | en |
dc.contributor.author | D'Arcy, Fiona | en |
dc.contributor.author | Diaz, Jorge Andres | en |
dc.contributor.author | Liotta, Marcello | en |
dc.contributor.department | Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sezione Roma2, Roma, Italia | en |
item.openairetype | article | - |
item.cerifentitytype | Publications | - |
item.languageiso639-1 | en | - |
item.grantfulltext | restricted | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | Observatorio Vulcanol ogico y Sismol ogico de Costa Rica (OVSICORI) | - |
crisitem.author.dept | Istituto Nazionale di Geofisica e Vulcanologia, Sezione Palermo, Palermo, Italia | - |
crisitem.author.orcid | 0000-0003-0661-8322 | - |
crisitem.author.orcid | 0000-0002-9628-3329 | - |
crisitem.author.orcid | 0000-0002-7203-1565 | - |
crisitem.department.parentorg | Istituto Nazionale di Geofisica e Vulcanologia | - |
Appears in Collections: | Article published / in press |
Files in This Item:
File | Description | Size | Format | |
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Stix et al 2018.pdf | 14.08 MB | Adobe PDF | View/Open |
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