Reath, K, Pritchard, M, Poland, M et al. (22 more authors) (2019) Thermal, deformation, and degassing remote sensing time‐series (A.D. 2000‐2017) at the 47 most active volcanoes in Latin America: Implications for volcanic systems. Journal of Geophysical Research: Solid Earth, 124 (1). pp. 195-218. ISSN 2169-9356
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 multi‐parameter datasets 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 datasets to ground‐based observations archived by the Global Volcanism Program (GVP). This first comparison of multi‐satellite time‐series on a regional scale provides information regarding volcanic behavior during, non‐, pre‐, syn‐ and post‐eruptive 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.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2018. American Geophysical Union. All rights reserved. This is an author produced version of a paper published in Journal of Geophysical Research: Solid Earth. Uploaded in accordance with the publisher's self-archiving policy. |
Keywords: | InSAR; OMI; ASTER; MIROVA; Latin America; Classification |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Environment (Leeds) > School of Earth and Environment (Leeds) > Inst of Geophysics and Tectonics (IGT) (Leeds) |
Funding Information: | Funder Grant number Leverhulme Trust ECF-2015-232 European Space Agency 4000118534/16/I-SBo |
Depositing User: | Symplectic Publications |
Date Deposited: | 03 Jan 2019 15:23 |
Last Modified: | 05 Jun 2019 00:44 |
Status: | Published |
Publisher: | American Geophysical Union |
Identification Number: | 10.1029/2018JB016199 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:140438 |