Globally Significant CO2  Emissions From Katla, a Subglacial Volcano in Iceland

Evgenia Ilyinskaya; Stephen Mobbs; Ralph Burton; Mike Burton; Federica Pardini; Melissa Anne Pfeffer; Ruth Purvis; James Lee; Stéphane Bauguitte; Barbara Brooks; Ioana Colfescu; Gudrun Nina Petersen; Axel Wellpott; Baldur Bergsson

doi:10.1029/2018GL079096

Globally Significant CO2 Emissions From Katla, a Subglacial Volcano in Iceland

Evgenia Ilyinskaya
, Stephen Mobbs
, Ralph Burton
, Mike Burton
, Federica Pardini
, Melissa Anne Pfeffer
, Ruth Purvis
, James Lee
, Stéphane Bauguitte
, Barbara Brooks
, Ioana Colfescu
, Gudrun Nina Petersen
, Axel Wellpott
, Baldur Bergsson

University of Leeds
Icelandic Meteorological Office
University of York
Cranfield University

Research output: Contribution to journal › Article › peer-review

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Abstract

Volcanoes are a key natural source of CO2, but global estimates of volcanic CO2 flux are predominantly based on measurements from a fraction of world's actively degassing volcanoes. We combine high‐precision airborne measurements from 2016 and 2017 with atmospheric dispersion modeling to quantify CO2 emissions from Katla, a major subglacial volcanic caldera in Iceland that last erupted 100 years ago but has been undergoing significant unrest in recent decades. Katla's sustained CO2 flux, 12–24 kt/d, is up to an order of magnitude greater than previous estimates of total CO2 release from Iceland's natural sources. Katla is one of the largest volcanic sources of CO2 on the planet, contributing up to 4% of global emissions from nonerupting volcanoes. Further measurements on subglacial volcanoes worldwide are urgently required to establish if Katla is exceptional, or if there is a significant previously unrecognized contribution to global CO2 emissions from natural sources.

Original language	English
Pages (from-to)	10,332-10,341
Journal	Geophysical Research Letters
Volume	45
Issue number	19
Early online date	17 Sept 2018
DOIs	https://doi.org/10.1029/2018GL079096
Publication status	Published - 16 Oct 2018

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Ilyinskaya_et_al-2018-Geophysical_Research_LettersFinal published version, 1.21 MB

Petrology and volcanology
Burton, M. (PI), Hartley, M. (PI), Mccormick Kilbride, B. (PI), Neave, D. (PI), Pawley, A. (PI), Polacci, M. (PI), Biagioli, E. (Researcher), Bonechi, B. (Researcher), Buso, R. (Researcher), Davies, B. (Researcher), Esse, B. (Researcher), Bronziet, J. (PGR student), Delbrel, J. (PGR student), Höhn, M. (PGR student), Hughes, R. (PGR student), Kember, A. (PGR student), Morgan, C. (PGR student), Pardo Cofrades, A. (PGR student), Pierce-Jones, T. (PGR student), Riddell, A. (PGR student), Rojas Guzman, F. (PGR student), Sen, R. (PGR student), Stewart, A. (PGR student) & Subbaraman, R. (PGR student)
Project: Research

Cite this

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title = "Globally Significant CO2 Emissions From Katla, a Subglacial Volcano in Iceland",

abstract = "Volcanoes are a key natural source of CO2, but global estimates of volcanic CO2 flux are predominantly based on measurements from a fraction of world's actively degassing volcanoes. We combine high‐precision airborne measurements from 2016 and 2017 with atmospheric dispersion modeling to quantify CO2 emissions from Katla, a major subglacial volcanic caldera in Iceland that last erupted 100 years ago but has been undergoing significant unrest in recent decades. Katla's sustained CO2 flux, 12–24 kt/d, is up to an order of magnitude greater than previous estimates of total CO2 release from Iceland's natural sources. Katla is one of the largest volcanic sources of CO2 on the planet, contributing up to 4\% of global emissions from nonerupting volcanoes. Further measurements on subglacial volcanoes worldwide are urgently required to establish if Katla is exceptional, or if there is a significant previously unrecognized contribution to global CO2 emissions from natural sources.",

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AU - Ilyinskaya, Evgenia

AU - Mobbs, Stephen

AU - Burton, Ralph

AU - Burton, Mike

AU - Pardini, Federica

AU - Pfeffer, Melissa Anne

AU - Purvis, Ruth

AU - Lee, James

AU - Bauguitte, Stéphane

AU - Brooks, Barbara

AU - Colfescu, Ioana

AU - Petersen, Gudrun Nina

AU - Wellpott, Axel

AU - Bergsson, Baldur

PY - 2018/10/16

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AB - Volcanoes are a key natural source of CO2, but global estimates of volcanic CO2 flux are predominantly based on measurements from a fraction of world's actively degassing volcanoes. We combine high‐precision airborne measurements from 2016 and 2017 with atmospheric dispersion modeling to quantify CO2 emissions from Katla, a major subglacial volcanic caldera in Iceland that last erupted 100 years ago but has been undergoing significant unrest in recent decades. Katla's sustained CO2 flux, 12–24 kt/d, is up to an order of magnitude greater than previous estimates of total CO2 release from Iceland's natural sources. Katla is one of the largest volcanic sources of CO2 on the planet, contributing up to 4% of global emissions from nonerupting volcanoes. Further measurements on subglacial volcanoes worldwide are urgently required to establish if Katla is exceptional, or if there is a significant previously unrecognized contribution to global CO2 emissions from natural sources.

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JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 19

ER -

Globally Significant CO2 Emissions From Katla, a Subglacial Volcano in Iceland

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Petrology and volcanology

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