Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/8770
AuthorsDiliberto, I. S. 
TitleTime series analysis of high temperature fumaroles monitored on the island of Vulcano (Aeolian Archipelago, Italy)
Issue Date26-Aug-2013
Series/Report no./264(2013)
DOI10.1016/j.jvolgeores.2013.08.003
URIhttp://hdl.handle.net/2122/8770
Keywordstemperature, fumarole, time series, monitoring, geochemistry, volcano
Subject Classification04. Solid Earth::04.08. Volcanology::04.08.06. Volcano monitoring 
AbstractThe exhalation activity at the La Fossa cone (Vulcano Island, Aeolian Archipelago, Italy) has been ongoing for more than 1 century. Many of the monitored geochemical and geophysical parameters have showed transient variations of energy release. The time-series analyses of fumarole temperatures presented in this paper enabled the sequence of observations to be defined and information from different monitoring stations to be integrated. The motion of fluids feeding the fumaroles of the La Fossa cone is driven by the thermal and kinetic energies that balance the seismic and volcanic forces active in the region, and the temperatures of the fumaroles reflect the local response of the hydrothermal system to these forces. During a 14-year period of observation, from 1998 to 2012, fumarole temperatures showed various trends but also cyclic variations characterized by sharp increases. The repetition of these variations during periods with different trends indicates that no physical variation occurred from the hydrothermal source to the surface during the analyzed period, and after each periodic geochemical crisis the previous thermal conditions were restored. Although the continuous monitoring of hightemperature fumaroles was limited to only a few sites, the observed trends characterized the most important fumaroles in the area of Vulcano Island. An evaluation of thermal-energy release based on these spatially discrete measurements would be a speculative exercise in thermodynamics, but the analyses of the recorded data represent a step forward in interpreting the signals from ongoing volcanic activity and in assessing the seismic risk. © 2013 Elsevier B.V. All rights reserved.
DescriptionThe continuous monitoring shows short term dynamics and allows multidisciplinary comparisons. Sharp increases and trending variations were recorded in fumarole temperatures. The trends highlighted by punctual monitoring characterized the main fumaroles. A new phase of increasing temperature begun after the year 2001 at the rim fumaroles.
Appears in Collections:Papers Published / Papers in press

Files in This Item:
File Description SizeFormat 
2013 Diliberto TSA vulcanofumarole JVGR 264.pdfMain article 3.91 MBAdobe PDFView/Open
Show full item record

WEB OF SCIENCETM
Citations 1

2
Last Week
0
Last month
checked on Jul 21, 2017

Page view(s)

46
Last Week
0
Last month
0
checked on Jul 21, 2017

Download(s)

23
checked on Jul 21, 2017

Google ScholarTM

Check

Altmetric