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Volcanic SO2, BrO and plume height estimations using GOME-2 satellite measurements during the eruption of Eyjafjallajökull in May 2010.

Rix, Meike and Valks, Pieter and Hao, Nan and Loyola, Diego and Schlager, Hans and Huntrieser, Heidi and Flemming, Johannes and Koehler, Ulf and Schumann, Ulrich and Iness, Antje (2012) Volcanic SO2, BrO and plume height estimations using GOME-2 satellite measurements during the eruption of Eyjafjallajökull in May 2010. Journal of Geophysical Research: Atmospheres, 117 (D00U19), pp. 1-19. AGU. DOI: 10.1029/2011JD016718. ISSN 0148-0227.

Full text not available from this repository.

Abstract

The eruption of the Eyjafjallajökull volcano, Iceland, in April and May 2010 caused unprecedented disruptions of European air traffic showing that timely monitoring of volcanic ash and SO2 dispersion as well as the corresponding plume heights are important for aviation safety. This paper describes the observations of SO2 and BrO columns in the eruption plume and the determination of the SO2 plume height using the GOME-2 satellite instrument. During the eruptive period in May 2010, SO2 total columns of up to ~20 DU and BrO columns of ~7.7 — 10^13 molec/cm2 were detected. The BrO/SO2 ratio estimated from the GOME-2 observations of the Eyjafjallajökull eruption varies from 1.1 × 10^-4 to 2.1 — 10^-4. The SO2 plume heights estimated from the GOME-2 observations on 5 May range from 813 km and mostly agree within 1-3 km with visual observations, radar data and modeling results. Furthermore, the GOME-2 SO2 observations are compared with in-situ measurements of the DLR Falcon aircraft on 17 and 18 May 2010 and with Brewer instruments at Valentia, Ireland and Hohenpeissenberg, Germany. The SO2 columns derived from the Falcon profile measurements range from 0.6 4.7 DU and the comparison with the GOME-2 measurements shows a good agreement, mainly within 1 DU. The Brewer observations at Hohenpeissenberg also agree well with the GOME-2 measurements with a daily average SO2 column of ~1.3 DU during the overpass of the SO2 cloud on 18 May, whereas the Brewer instrument at Valentia shows up to 50% higher SO2 columns (~8 DU) on 11 May.

Document Type:Article
Title:Volcanic SO2, BrO and plume height estimations using GOME-2 satellite measurements during the eruption of Eyjafjallajökull in May 2010.
Authors:
AuthorsInstitution or Email of Authors
Rix, MeikeDLR
Valks, PieterDLR
Hao, NanDLR
Loyola, DiegoDLR
Schlager, HansDLR
Huntrieser, HeidiDLR
Flemming, JohannesECMWF
Koehler, UlfDWD
Schumann, UlrichDLR
Iness, AntjeECMWF
Date:2012
Journal or Publication Title:Journal of Geophysical Research: Atmospheres
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:117
DOI:10.1029/2011JD016718
Page Range:pp. 1-19
Publisher:AGU
ISSN:0148-0227
Status:Published
Keywords:SO2, volcano, GOME-2, Eyjafjallajökull, BrO, plume height, satellite
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W EO - Erdbeobachtung
DLR - Research area:Space
DLR - Program:W EO - Erdbeobachtung
DLR - Research theme (Project):W - Vorhaben Ozon-SAF (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Dr. Pieter Valks
Deposited On:02 Feb 2012 09:28
Last Modified:23 Jan 2014 11:35

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