Circumpolar transport of a volcanic cloud from Hekla (Iceland)
Identifieur interne : 002347 ( Main/Exploration ); précédent : 002346; suivant : 002348Circumpolar transport of a volcanic cloud from Hekla (Iceland)
Auteurs : S. A. Carn [États-Unis] ; A. J. Prata [Norvège] ; S. Karlsd Ttir [Islande]Source :
- Journal of Geophysical Research: Atmospheres [ 0148-0227 ] ; 2008-07-27.
Abstract
Hekla volcano (Iceland) erupted on 17 August 1980 and emplaced a sulfur dioxide (SO2) cloud into the north polar stratosphere at a maximum altitude of ∼15 km. The SO2 is tracked using satellite data from the ultraviolet (UV) Nimbus‐7 Total Ozone Mapping Spectrometer (N7/TOMS) and the infrared (IR) High‐resolution Infrared Radiation Sounder (HIRS/2) on the NOAA TIROS Operational Vertical Sounder (TOVS) platform. The eruption emitted ∼0.5–0.7 Tg of SO2, which later split into three distinct clouds, one of which circled the North Pole at the perimeter of an atypically persistent Arctic cyclone for six days, impacting airspace on three continents. Separate clouds drifted across eastern Russia, Alaska, and Canada. Maximum SO2 columns derived from TOMS and HIRS/2 accurately define the volcanic cloud's path and fit trajectories produced by the NOAA Hybrid Single‐Particle Lagrangian Integrated Trajectory (HYSPLIT) model, providing confidence in the model. When combined with the SO2 measurements, trajectory altitudes derived from HYSPLIT provide robust estimates of the altitudes of the SO2 clouds (8–15 km), which would be elusive using either the satellite data or the trajectory model in isolation. Near‐coincident, spectrally discrete UV and IR retrievals are compared in the volcanic cloud and indicate good agreement between TOMS and HIRS/2 SO2 columns for pixels with similar viewing geometry. Hekla eruptions, which follow a pattern of early explosive venting of volcanic gases with significant stratospheric injection, could play a role in promoting Arctic ozone loss, depending on the phase of the North Atlantic Oscillation during the eruption.
Url:
DOI: 10.1029/2008JD009878
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Istex, to step Corpus: 002999
- to stream Istex, to step Curation: 002999
- to stream Istex, to step Checkpoint: 000952
- to stream Main, to step Merge: 002542
- to stream Main, to step Curation: 002347
Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Circumpolar transport of a volcanic cloud from Hekla (Iceland)</title><author><name sortKey="Carn, S A" sort="Carn, S A" uniqKey="Carn S" first="S. A." last="Carn">S. A. Carn</name></author><author><name sortKey="Prata, A J" sort="Prata, A J" uniqKey="Prata A" first="A. J." last="Prata">A. J. Prata</name></author><author><name sortKey="Karlsd Ttir, S" sort="Karlsd Ttir, S" uniqKey="Karlsd Ttir S" first="S." last="Karlsd Ttir">S. Karlsd Ttir</name></author></titleStmt><publicationStmt><idno type="wicri:source">ISTEX</idno><idno type="RBID">ISTEX:4E879B4C429EB2904C49C4D3FA29E09830EDF246</idno><date when="2008" year="2008">2008</date><idno type="doi">10.1029/2008JD009878</idno><idno type="url">https://api-v5.istex.fr/document/4E879B4C429EB2904C49C4D3FA29E09830EDF246/fulltext/pdf</idno><idno type="wicri:Area/Istex/Corpus">002999</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Corpus" wicri:corpus="ISTEX">002999</idno><idno type="wicri:Area/Istex/Curation">002999</idno><idno type="wicri:Area/Istex/Checkpoint">000952</idno><idno type="wicri:explorRef" wicri:stream="Istex" wicri:step="Checkpoint">000952</idno><idno type="wicri:doubleKey">0148-0227:2008:Carn S:circumpolar:transport:of</idno><idno type="wicri:Area/Main/Merge">002542</idno><idno type="wicri:Area/Main/Curation">002347</idno><idno type="wicri:Area/Main/Exploration">002347</idno></publicationStmt><sourceDesc><biblStruct><analytic><title level="a" type="main" xml:lang="en">Circumpolar transport of a volcanic cloud from Hekla (Iceland)</title><author><name sortKey="Carn, S A" sort="Carn, S A" uniqKey="Carn S" first="S. A." last="Carn">S. A. Carn</name><affiliation wicri:level="3"><country xml:lang="fr">États-Unis</country><wicri:regionArea>Joint Center for Earth Systems Technology (NASA/UMBC), University of Maryland Baltimore County, Maryland, Baltimore</wicri:regionArea><placeName><settlement type="city">Baltimore</settlement><region type="state">Maryland</region></placeName></affiliation><affiliation wicri:level="1"><country wicri:rule="url">États-Unis</country></affiliation></author><author><name sortKey="Prata, A J" sort="Prata, A J" uniqKey="Prata A" first="A. J." last="Prata">A. J. Prata</name><affiliation wicri:level="1"><country xml:lang="fr">Norvège</country><wicri:regionArea>Atmosphere and Climate Department, Norwegian Institute for Air Research (NILU), Kjeller</wicri:regionArea><wicri:noRegion>Kjeller</wicri:noRegion></affiliation></author><author><name sortKey="Karlsd Ttir, S" sort="Karlsd Ttir, S" uniqKey="Karlsd Ttir S" first="S." last="Karlsd Ttir">S. Karlsd Ttir</name><affiliation wicri:level="1"><country xml:lang="fr">Islande</country><wicri:regionArea>Icelandic Meteorological Office, Reykjavík</wicri:regionArea><wicri:noRegion>Reykjavík</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Journal of Geophysical Research: Atmospheres</title><title level="j" type="abbrev">J. Geophys. Res.</title><idno type="ISSN">0148-0227</idno><idno type="eISSN">2156-2202</idno><imprint><publisher>Blackwell Publishing Ltd</publisher><date type="published" when="2008-07-27">2008-07-27</date><biblScope unit="volume">113</biblScope><biblScope unit="issue">D14</biblScope><biblScope unit="page" from="/">n/a</biblScope><biblScope unit="page" to="/">n/a</biblScope></imprint><idno type="ISSN">0148-0227</idno></series><idno type="istex">4E879B4C429EB2904C49C4D3FA29E09830EDF246</idno><idno type="DOI">10.1029/2008JD009878</idno><idno type="ArticleID">2008JD009878</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0148-0227</idno></seriesStmt></fileDesc><profileDesc><textClass></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract">Hekla volcano (Iceland) erupted on 17 August 1980 and emplaced a sulfur dioxide (SO2) cloud into the north polar stratosphere at a maximum altitude of ∼15 km. The SO2 is tracked using satellite data from the ultraviolet (UV) Nimbus‐7 Total Ozone Mapping Spectrometer (N7/TOMS) and the infrared (IR) High‐resolution Infrared Radiation Sounder (HIRS/2) on the NOAA TIROS Operational Vertical Sounder (TOVS) platform. The eruption emitted ∼0.5–0.7 Tg of SO2, which later split into three distinct clouds, one of which circled the North Pole at the perimeter of an atypically persistent Arctic cyclone for six days, impacting airspace on three continents. Separate clouds drifted across eastern Russia, Alaska, and Canada. Maximum SO2 columns derived from TOMS and HIRS/2 accurately define the volcanic cloud's path and fit trajectories produced by the NOAA Hybrid Single‐Particle Lagrangian Integrated Trajectory (HYSPLIT) model, providing confidence in the model. When combined with the SO2 measurements, trajectory altitudes derived from HYSPLIT provide robust estimates of the altitudes of the SO2 clouds (8–15 km), which would be elusive using either the satellite data or the trajectory model in isolation. Near‐coincident, spectrally discrete UV and IR retrievals are compared in the volcanic cloud and indicate good agreement between TOMS and HIRS/2 SO2 columns for pixels with similar viewing geometry. Hekla eruptions, which follow a pattern of early explosive venting of volcanic gases with significant stratospheric injection, could play a role in promoting Arctic ozone loss, depending on the phase of the North Atlantic Oscillation during the eruption.</div></front></TEI><affiliations><list><country><li>Islande</li><li>Norvège</li><li>États-Unis</li></country><region><li>Maryland</li></region><settlement><li>Baltimore</li></settlement></list><tree><country name="États-Unis"><region name="Maryland"><name sortKey="Carn, S A" sort="Carn, S A" uniqKey="Carn S" first="S. A." last="Carn">S. A. Carn</name></region><name sortKey="Carn, S A" sort="Carn, S A" uniqKey="Carn S" first="S. A." last="Carn">S. A. Carn</name></country><country name="Norvège"><noRegion><name sortKey="Prata, A J" sort="Prata, A J" uniqKey="Prata A" first="A. J." last="Prata">A. J. Prata</name></noRegion></country><country name="Islande"><noRegion><name sortKey="Karlsd Ttir, S" sort="Karlsd Ttir, S" uniqKey="Karlsd Ttir S" first="S." last="Karlsd Ttir">S. Karlsd Ttir</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Canada/explor/ParkinsonCanadaV1/Data/Main/Exploration
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 002347 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/Main/Exploration/biblio.hfd -nk 002347 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Canada
|area= ParkinsonCanadaV1
|flux= Main
|étape= Exploration
|type= RBID
|clé= ISTEX:4E879B4C429EB2904C49C4D3FA29E09830EDF246
|texte= Circumpolar transport of a volcanic cloud from Hekla (Iceland)
}}
| This area was generated with Dilib version V0.6.29. |  |