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| Titel |
Satellite Monitoring of Ash and Sulphur Dioxide for the mitigation of Aviation Hazards: Part II. Validation of satellite-derived Volcanic Sulphur Dioxide Levels. |
| VerfasserIn |
MariLiza Koukouli, Dimitris Balis, Spiros Dimopoulos, Lieven Clarisse, Elisa Carboni, Pascal Hedelt, Claudia Spinetti, Nicolas Theys, Lucia Tampellini, Claus Zehner |
| Konferenz |
EGU General Assembly 2014
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 16 (2014) |
| Datensatznummer |
250095539
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| Publikation (Nr.) |
 EGU/EGU2014-10996.pdf |
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| Zusammenfassung |
| The eruption of the Icelandic volcano Eyjafjallajökull in the spring of 2010 turned the
attention of both the public and the scientific community to the susceptibility of the
European airspace to the outflows of large volcanic eruptions. The ash-rich plume from
Eyjafjallajökull drifted towards Europe and caused major disruptions of European air
traffic for several weeks affecting the everyday life of millions of people and with a
strong economic impact. This unparalleled situation revealed limitations in the
decision making process due to the lack of information on the tolerance to ash of
commercial aircraft engines as well as limitations in the ash monitoring and prediction
capabilities.
The European Space Agency project Satellite Monitoring of Ash and Sulphur
Dioxide for the mitigation of Aviation Hazards, was introduced to facilitate the
development of an optimal End-to-End System for Volcanic Ash Plume Monitoring and
Prediction. This system is based on comprehensive satellite-derived ash plume and
sulphur dioxide [SO2] level estimates, as well as a widespread validation using
supplementary satellite, aircraft and ground-based measurements. The validation of
volcanic SO2 levels extracted from the sensors GOME-2/MetopA and IASI/MetopA
are shown here with emphasis on the total column observed right before, during
and after the Eyjafjallajökull 2010 eruptions. Co-located ground-based Brewer
Spectrophotometer data extracted from the World Ozone and Ultraviolet Radiation Data
Centre, WOUDC, were compared to the different satellite estimates. The findings
are presented at length, alongside a comprehensive discussion of future scenarios. |
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