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On the retrieval of Volcanic Sulfur Dioxide Emissions from GOME backscatter measurements

Thomas, Werner and Erbertseder, Thilo and Ruppert, Thomas and Roozendael, M. Van and Verdebout, J. and Balis, D. and Meleti, C. and Zerefos, C. (2005) On the retrieval of Volcanic Sulfur Dioxide Emissions from GOME backscatter measurements. Journal of Atmospheric Chemistry, 50, pp. 295-320.

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Abstract

We focus on the retrieval of volcanic sulfur dioxide (SO2) emissions from an analysis of atmospheric UV backscatter spectra obtained by the Global Ozone Monitoring Experiment (GOME) spectrometer on board the ESA European Remote Sensing Satellite (ERS-2). Here, the last major eruptions of Mt. Etna on Sicily (Italy) in July/August 2001 and October/November 2002 provided an excellent opportunity to study the retrieval of SO2 columnar amounts from ground-based, LIDAR and satellite measurements. Our study shows that the bulk of emitted SO2 was confined in the troposphere, mainly between 700 hPa and 400 hPa which is confirmed by trajectory analysis, by LIDAR observations and AVHRR observations. The area of influence of Mt. Etna eruptions ranges from the Western Saharan Desert to Greece and the near east states and even down to the basin of Tschad, Africa. Our analysis revealed that information about the plume height of volcanic eruptions and aerosol parameters is necessary for a reliable quantitative retrieval of SO2 from space-borne sensor data at periods perturbed by volcanic eruptions.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2005,
Title:On the retrieval of Volcanic Sulfur Dioxide Emissions from GOME backscatter measurements
Authors:
AuthorsInstitution or Email of Authors
Thomas, WernerUNSPECIFIED
Erbertseder, ThiloUNSPECIFIED
Ruppert, ThomasUNSPECIFIED
Roozendael, M. VanBelgian Institute for Space Aeronomy
Verdebout, J.UNSPECIFIED
Balis, D.UNSPECIFIED
Meleti, C.UNSPECIFIED
Zerefos, C.UNSPECIFIED
Date:2005
Journal or Publication Title:Journal of Atmospheric Chemistry
Volume:50
Page Range:pp. 295-320
Status:Published
Keywords:GOME measurements - sulfur dioxide retrieval - trace gases - volcanic emissions
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):UNSPECIFIED
Location: Oberpfaffenhofen
Institutes and Institutions:Remote Sensing Technology Institute
German Remote Sensing Data Center
Deposited By: Cornelia Roehl
Deposited On:29 Mar 2006
Last Modified:28 Jun 2013 14:50

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