Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, Epiciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Thermal, Deformation, and Degassing Remote Sensing Time Series (CE 2000-2017) at the 47 most Active Volcanoes in Latin America: Implications for Volcanic Systems

Abstract : Volcanoes are hazardous to local and global populations, but only a fraction are continuously monitored by ground-based sensors. For example, in Latin America, more than 60% of Holocene volcanoes are unmonitored, meaning long-term multiparameter data sets of volcanic activity are rare and sparse. We use satellite observations of degassing, thermal anomalies, and surface deformation spanning 17 years at 47 of the most active volcanoes in Latin America and compare these data sets to ground-based observations archived by the Global Volcanism Program. This first comparison of multisatellite time series on a regional scale provides information regarding volcanic behavior during, noneruptive, pre-eruptive, syneruptive, and posteruptive periods. For example, at Copahue volcano, deviations from background activity in all three types of satellite measurements were manifested months to years in advance of renewed eruptive activity in 2012. By quantifying the amount of degassing, thermal output, and deformation measured at each of these volcanoes, we test the classification of these volcanoes as open or closed volcanic systems. We find that 28% of the volcanoes do not fall into either classification, and the rest show elements of both, demonstrating a dynamic range of behavior that can change over time. Finally, we recommend how volcano monitoring could be improved through better coordination of available satellite-based capabilities and new instruments.
Document type :
Journal articles
Complete list of metadata

https://hal-insu.archives-ouvertes.fr/insu-03586667
Contributor : Nathalie POTHIER Connect in order to contact the contributor
Submitted on : Thursday, February 24, 2022 - 9:21:24 AM
Last modification on : Saturday, February 26, 2022 - 3:08:36 AM
Long-term archiving on: : Wednesday, May 25, 2022 - 6:14:36 PM

File

JGR Solid Earth - 2018 - Reath...
Publisher files allowed on an open archive

Licence

Copyright

Identifiers

Collections

Citation

K. Reath, M. Pritchard, M. Poland, F. Delgado, S. Carn, et al.. Thermal, Deformation, and Degassing Remote Sensing Time Series (CE 2000-2017) at the 47 most Active Volcanoes in Latin America: Implications for Volcanic Systems. Journal of Geophysical Research : Solid Earth, American Geophysical Union, 2019, 124, pp.195-218. ⟨10.1029/2018JB016199⟩. ⟨insu-03586667⟩

Share

Metrics

Record views

16

Files downloads

3