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  • Arellano, Santiago,1981Chalmers tekniska högskola,Chalmers University of Technology (författare)

Synoptic analysis of a decade of daily measurements of SO2 emission in the troposphere from volcanoes of the global ground-based Network for Observation of Volcanic and Atmospheric Change

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • 2021-03-22
  • Copernicus GmbH,2021
  • electronicrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:research.chalmers.se:624a0407-3c06-4bbf-af84-aa22f56263dd
  • https://doi.org/10.5194/essd-13-1167-2021DOI
  • https://research.chalmers.se/publication/523282URI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

  • Ämneskategori:art swepub-publicationtype
  • Ämneskategori:ref swepub-contenttype

Anmärkningar

  • Volcanic plumes are common and far-reaching manifestations of volcanic activity during and between eruptions. Observations of the rate of emission and composition of volcanic plumes are essential to recognize and, in some cases, predict the state of volcanic activity. Measurements of the size and location of the plumes are important to assess the impact of the emission from sporadic or localized events to persistent or widespread processes of climatic and environmental importance. These observations provide information on volatile budgets on Earth, chemical evolution of magmas, and atmospheric circulation and dynamics. Space-based observations during the last decades have given us a global view of Earth's volcanic emission, particularly of sulfur dioxide (SO2). Although none of the satellite missions were intended to be used for measurement of volcanic gas emission, specially adapted algorithms have produced time-averaged global emission budgets. These have confirmed that tropospheric plumes, produced from persistent degassing of weak sources, dominate the total emission of volcanic SO2. Although space-based observations have provided this global insight into some aspects of Earth's volcanism, it still has important limitations. The magnitude and short-term variability of lower-atmosphere emissions, historically less accessible from space, remain largely uncertain. Operational monitoring of volcanic plumes, at scales relevant for adequate surveillance, has been facilitated through the use of ground-based scanning differential optical absorption spectrometer (ScanDOAS) instruments since the beginning of this century, largely due to the coordinated effort of the Network for Observation of Volcanic and Atmospheric Change (NOVAC). In this study, we present a compilation of results of homogenized post-analysis of measurements of SO2 flux and plume parameters obtained during the period March 2005 to January 2017 of 32 volcanoes in NOVAC. This inventory opens a window into the short-term emission patterns of a diverse set of volcanoes in terms of magma composition, geographical location, magnitude of emission, and style of eruptive activity. We find that passive volcanic degassing is by no means a stationary process in time and that large sub-daily variability is observed in the flux of volcanic gases, which has implications for emission budgets produced using short-term, sporadic observations. The use of a standard evaluation method allows for intercomparison between different volcanoes and between ground- and space-based measurements of the same volcanoes. The emission of several weakly degassing volcanoes, undetected by satellites, is presented for the first time. We also compare our results with those reported in the literature, providing ranges of variability in emission not accessible in the past. The open-access data repository introduced in this article will enable further exploitation of this unique dataset, with a focus on volcanological research, risk assessment, satellite-sensor validation, and improved quantification of the prevalent tropospheric component of global volcanic emission. Datasets for each volcano are made available at https://novac.chalmers.se (last access: 1 October 2020) under the CC-BY 4 license or through the DOI (digital object identifier) links provided in Table 1.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Galle, Bo,1952Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)galle (författare)
  • Apaza, FredyInstituto Geológico, Minero y Metalúrgico (INGEMMET),Geological, Mining, and Metallurgical Institute (INGEMMET) (författare)
  • Avard, G. (författare)
  • Barrington, CharlotteEarth Observatory of Singapore (författare)
  • Bobrowski, N.Ruprecht-Karls-Universität Heidelberg,Heidelberg University (författare)
  • Bucarey, ClaudiaServicio Nacional de Geologia y Mineria,National Geology and Mining Service (författare)
  • Burbano, V.Servicio Geológico Colombiano,Colombian Geological Survey (författare)
  • Burton, MikeUniversity of Manchester,Istituto Nazionale di Geofisica e Vulcanologia,National Institute of Geophysics and Volcanology (författare)
  • Chacón, Z.Servicio Geológico Colombiano,Colombian Geological Survey (författare)
  • Chigna, GustavoInstituto Nacional de Sismología, Vulcanología, Meteorología e Hidrología (INSIVUMEH) (författare)
  • Joseph Clarito, Christian (författare)
  • Conde Jacobo, Alexander Vladimir,1979Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)conde (författare)
  • Costa, FidelEarth Observatory of Singapore (författare)
  • De Moor, Maarten (författare)
  • Granados, H. D.Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico (författare)
  • Di Muro, A.Institut de Physique du Globe de Paris (författare)
  • Fernandez, D. (författare)
  • Garzón, GustavoServicio Geológico Colombiano,Colombian Geological Survey (författare)
  • Gunawan, Hendra (författare)
  • Haerani, Nia (författare)
  • Hansteen, T. H.Helmholtz Zentrum,Helmholtz Center (författare)
  • Hidalgo, SilvanaEscuela Politécnica Nacional (författare)
  • Inguaggiato, S.Istituto Nazionale di Geofisica e Vulcanologia,National Institute of Geophysics and Volcanology (författare)
  • Johansson, Mattias (författare)
  • Kern, ChristophUSGS Cascades Volcano Observatory (författare)
  • Kihlman, Manne,1976 (författare)
  • Kowalski, PhilippInstitut de Physique du Globe de Paris (författare)
  • Masias, PabloInstituto Geológico, Minero y Metalúrgico (INGEMMET),Geological, Mining, and Metallurgical Institute (INGEMMET) (författare)
  • Montalvo, Francisco (författare)
  • Möller, Joakim (författare)
  • Platt, UlrichRuprecht-Karls-Universität Heidelberg,Heidelberg University (författare)
  • Rivera, Claudia,1976Universidad Nacional Autónoma de México (UNAM),Universidad Nacional Autonoma de Mexico(Swepub:cth)vm2ricl (författare)
  • Saballos, ArmandoInstituto Nicaragüense de Estudios Territoriales (författare)
  • Salerno, GiuseppeIstituto Nazionale di Geofisica e Vulcanologia,National Institute of Geophysics and Volcanology (författare)
  • Taisne, B.Earth Observatory of Singapore (författare)
  • Vásconez, FreddieEscuela Politécnica Nacional (författare)
  • Velásquez, GabrielaServicio Nacional de Geologia y Mineria,National Geology and Mining Service (författare)
  • Vita, F.Istituto Nazionale di Geofisica e Vulcanologia,National Institute of Geophysics and Volcanology (författare)
  • Yalire, M. (författare)
  • Chalmers tekniska högskolaInstituto Geológico, Minero y Metalúrgico (INGEMMET) (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Earth System Science Data: Copernicus GmbH13:3, s. 1167-11881866-35161866-3508

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