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Sulfur dioxide (SO2) from MIPAS in the upper troposphere and lower stratosphere 2002–2012

Höpfner, M. and Boone, C. D. and Funke, B. and Glatthor, N. and Grabowski, U. and Günther, A. and Kellmann, S. and Kiefer, M. and Linden, A. and Lossow, S. and Pumphrey, H. C. and Read, W. and Roiger, Anke and Stiller, G. and Schlager, H. and von Clarmann, Thomas and Wissmüller, K. (2015) Sulfur dioxide (SO2) from MIPAS in the upper troposphere and lower stratosphere 2002–2012. Atmospheric Chemistry and Physics Discussions (ACPD). Copernicus Publications. DOI: doi:10.5194/acp-15-7017-2015 ISSN 1680-7367

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Abstract

Vertically resolved distributions of sulfur dioxide (SO2) with global coverage in the height region from the upper troposphere to ~20 km altitude have been derived from observations by the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) on Envisat for the period July 2002 to April 2012. Retrieved volume mixing ratio profiles representing single measurements are characterized by typical errors in the range of 70–100 pptv and by a vertical resolution ranging from 3 to 5 km. Comparison with observations by the Atmospheric Chemistry Experiment Fourier transform spectrometer (ACE-FTS) revealed a slightly varying bias with altitude of −20 to 50 pptv for the MIPAS data set in case of volcanically enhanced concentrations. For background concentrations the comparison showed a systematic difference between the two major MIPAS observation periods. After debiasing, the difference could be reduced to biases within −10 to 20 pptv in the altitude range of 10–20 km with respect to ACE-FTS. Further comparisons of the debiased MIPAS data set with in situ measurements from various aircraft campaigns showed no obvious inconsistencies within a range of around ±50 pptv. The SO2 emissions of more than 30 volcanic eruptions could be identified in the upper troposphere and lower stratosphere (UTLS). Emitted SO2 masses and lifetimes within different altitude ranges in the UTLS have been derived for a large part of these eruptions. Masses are in most cases within estimations derived from other instruments. From three of the major eruptions within the MIPAS measurement period – Kasatochi in August 2008, Sarychev in June 2009 and Nabro in June 2011 – derived lifetimes of SO2 for the altitude ranges 10–14, 14–18 and 18–22 km are 13.3 ± 2.1, 23.6 ± 1.2 and 32.3 ± 5.5 days respectively. By omitting periods with obvious volcanic influence we have derived background mixing ratio distributions of SO2. At 10 km altitude these indicate an annual cycle at northern mid- and high latitudes with maximum values in summer and an amplitude of about 30 pptv. At higher altitudes of about 16–18 km, enhanced mixing ratios of SO2 can be found in the regions of the Asian and the North American monsoons in summer – a possible connection to an aerosol layer discovered by Vernier et al. (2011b) in that region.

Item URL in elib:https://elib.dlr.de/100717/
Document Type:Article
Title:Sulfur dioxide (SO2) from MIPAS in the upper troposphere and lower stratosphere 2002–2012
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Höpfner, M.Institut für Meteorologie und Klimaforschung, FZ KarlsruheUNSPECIFIED
Boone, C. D.Department of Chemistry, University of Waterloo, Waterloo, Ontario, CanadaUNSPECIFIED
Funke, B.Instituto de Astrofísica de Andalucía, CSIC, Granada, SpainUNSPECIFIED
Glatthor, N.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Grabowski, U.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Günther, A.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Kellmann, S.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Kiefer, M.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Linden, A.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Lossow, S.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Pumphrey, H. C.School of GeoSciences, The University of Edinburgh, Edinburgh, UKUNSPECIFIED
Read, W.Jet Propulsion Lab, California Institute of Technology, Pasadena, CA, USAUNSPECIFIED
Roiger, AnkeDLR, IPAUNSPECIFIED
Stiller, G.Inst. f. Met. und Klimaforschung, Univ. KarlsruheUNSPECIFIED
Schlager, H.DLR, IPAUNSPECIFIED
von Clarmann, ThomasForschungszentrum Karlsruhe GmbH, Institut für Meteorologie und Klimaforschung, GermanyUNSPECIFIED
Wissmüller, K.DLR, IPAUNSPECIFIED
Date:29 June 2015
Journal or Publication Title:Atmospheric Chemistry and Physics Discussions (ACPD)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:No
In ISI Web of Science:No
DOI :doi:10.5194/acp-15-7017-2015
Publisher:Copernicus Publications
ISSN:1680-7367
Status:Published
Keywords:Sulfur dioxide, MIPAS, validation
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Deposited By: Roiger, Anke-Elisabeth
Deposited On:10 Dec 2015 09:25
Last Modified:02 May 2019 14:15

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