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REFIR- A multi-parameter system for near real-time estimates of plume-height and mass eruption rate during explosive eruptions

Research output: Contribution to journalArticle

  • Tobias Dürig
  • Magnus Tumi Gudmundsson
  • Fabio Dioguardi
  • Mark Woodhouse
  • H Bjornsson
  • Sara Barsotti
  • Tanja Witt
  • Thomas Walter
Original languageEnglish
Pages (from-to)61-83
Number of pages23
JournalJournal of Volcanology and Geothermal Research
Early online date18 Jul 2018
DateAccepted/In press - 8 Jul 2018
DateE-pub ahead of print - 18 Jul 2018
DatePublished (current) - Jul 2018


Meaningful forecasting of the atmospheric concentration and ground accumulation of volcanic ash during explosive eruptions requires detailed knowledge of the eruption source parameters. However, due to the large uncertainties in observations and limitations of current models used to make inferences from these, monitoring an ongoing eruption and quantifying the mass eruption rate in real-time is a considerable challenge. Within the EU supersite project “FutureVolc”, an integrated approach has been applied to develop a quasi-autonomous multi-parameter system, denoted “REFIR”, for monitoring volcanic eruptions in Iceland and assessing the eruption mass flow rate by inverting the plume height information and taking account of these uncertainties. REFIR has the capability to ingest and process streaming plume-height data provided by a multitude of ground based sensors, including C– and X-band radars and web-cam based plume height tracking systems. These observational data are used with a suite of plume models that also consider the current wind and other atmospheric conditions, providing statistically assessed best estimates of plume height and mass eruption rate. Provided instrumental data is available, near real-time estimates are obtained (the delay corresponding to the scan rate of data-providing instruments, presently of the order of minutes). Using the Hekla 2000, and Eyjafjallajökull 2010 eruptions in Iceland, the potential of REFIR is demonstrated and discussed through application to three scenarios. The system has been developed to provide maximum flexibility. A setup script assists the user in adapting to local conditions, allowing implementation of REFIR for any volcanic eruption site worldwide. REFIR is designed to be easily upgradable, allowing future extension of monitoring networks, learning from new events, and incorporation of new technologies and model improvements. This article gives an overview of the basic structure, models implemented, functionalities and the computational techniques of REFIR.

    Research areas

  • real-time eruption monitoring, operational use, plume heights, mass eruption rate, volcanic plume models

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    Rights statement: This is the author accepted manuscript (AAM). The final published version (version of record) is available online via Elsevier at . Please refer to any applicable terms of use of the publisher.

    Accepted author manuscript, 4 MB, PDF document

    Licence: CC BY-NC-ND


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