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| Titel |
Volcano monitoring with a multiparametric station placed inside a subhorizontal gallery in Tenerife (Canary Islands) |
| VerfasserIn |
Pedro Torres-González, David Moure-García, Natividad Luengo-Oroz, María Jiménez-Mejías, Ana Isabel Jiménez-Abizanda, Jose Manuel García-Fraga, Vicente Soler-Javaloyes, Itahiza Domínguez Cerdeña |
| Konferenz |
EGU General Assembly 2017
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| Medientyp |
Artikel
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| Sprache |
en
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 19 (2017) |
| Datensatznummer |
250148758
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| Publikation (Nr.) |
 EGU/EGU2017-13045.pdf |
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| Zusammenfassung |
| Measuring gaseous emissions from a volcano is one of the main tasks in volcano monitoring.
These emissions can occur inside an active crater as fumaroles or plumes or along the whole
volcanic area as diffuse emissions through porous soils or using preferential paths like dikes,
faults or fractures.
H2O, CO2, SO2 and H2S are the main species released by volcanoes. Among them,
CO2 has received special attention in the last years. It has been used as an unrest
and/or eruption early warning signal due to his low magma solubility and easily
measurement.
In the Canary Islands (oceanic volcanic islands) during the last century hundreds of
galleries, subhorizontal drillings with lengths from few meters to kilometers and a 2x2 meters
mean section, have been drilled to obtain groundwater. In the island of Tenerife there are
about 1200. These infrastructures can cut across some preferential rising paths like dikes or
fractures, so they turn to be optimum places to measure volcanic gas emissions.
In addition, atmospheric parameters influence significantly decreases inside the
galleries.
In this work, we present data analysis from a three years registration period of a station
placed at 1600 meters from the entrance of a gallery in Tenerife. This station measures
several parameters like ambient and soil temperature and CO2 and Radon air concentrations
inside the gallery. We also show how outside atmospheric parameters affect the microclimate
inside the gallery. |
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