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MIPAS-STR measurements in the arctic UTLS in winter/spring 2010: instrument characterization, retrieval and validation

Woiwode, W. and Oelhaf, H. and Gulde, T. and Piesch, C. and Maucher, C. and Ebersoldt, A. and Keim, C. and Höpfner, M. and Khaykin, S. and Ravegnani, F. and Ulanovsky, A.E. and Volk, C.M. and Hösen, E. and Dörnbrack, A. and Ungermann, J. and Kalicinsky, C. and Orphal, J. (2012) MIPAS-STR measurements in the arctic UTLS in winter/spring 2010: instrument characterization, retrieval and validation. Atmospheric Measurement Techniques, 5, pp. 1205-1228. DOI: 10.5194/amt-5-1205-2012.

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Official URL: http://www.atmos-meas-tech.net/5/1205/2012/

Abstract

The mid-infrared FTIR-limb-sounder Michelson Interferometer for Passive Atmospheric Sounding � STRatospheric aircraft (MIPAS-STR) was deployed onboard the stratospheric aircraft M55 Geophysica during the RECONCILE campaign in the arctic winter/spring 2010. From the MIPAS-STR measurements, vertical profiles and 2-dimensional vertical cross-sections of temperature and trace gases are retrieved. Detailed mesoscale structures of polar vortex air, extra vortex air and vortex filaments are identified in the results at a typical vertical resolution of 1 to 2 km and typical horizontal sampling density of 45 or 25 km, depending on the sampling programme. Results are shown for the RECONCILE flight 11 on 2 March 2010 and are validated with collocated in-situ measurements of temperature, O3, CFC-11, CFC-12 and H2O. Exceptional agreement is found for the in-situ comparisons of temperature and O3, with mean differences (vertical profile/along flight track) of 0.2/�0.2 K for temperature and �0.01/0.05 ppmv for O3 and corresponding sample standard deviations of the mean differences of 0.7/0.6 K and 0.1/0.3 ppmv. The comparison of the retrieved vertical cross-sections of HNO3 from MIPAS-STR and the infrared limb-sounder Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere � New Frontiers (CRISTA-NF) indicates comprehensive agreement. We discuss MIPAS-STR in its current configuration, the spectral and radiometric calibration of the measurements and the retrieval of atmospheric parameters from the spectra. The MIPAS-STR measurements are significantly affected by continuum-like contributions, which are attributed to background aerosol and broad spectral signatures from interfering trace gases and are important for mid-infrared limb-sounding measurements in the Upper Troposphere/Lower Stratosphere (UTLS) region. Considering for continuum-like effects, we present a scheme suitable for accurate retrievals of temperature and an extended set of trace gases, including the correction of a systematic line-of-sight offset.

Document Type:Article
Title:MIPAS-STR measurements in the arctic UTLS in winter/spring 2010: instrument characterization, retrieval and validation
Authors:
AuthorsInstitution or Email of Authors
Woiwode, W.KIT, Karlsruhe
Oelhaf, H.KIT, Karlsruhe
Gulde, T.KIT, Karlsruhe
Piesch, C.KIT, Karlsruhe
Maucher, C.KIT, Karlsruhe
Ebersoldt, A.KIT, Karlsruhe
Keim, C.KIT, Karlsruhe
Höpfner, M.KIT, Karlsruhe
Khaykin, S.Central Aerological Observ., Dolgoprudny, Moscow region, R
Ravegnani, F.CNR-ISAC, Bologna, I
Ulanovsky, A.E.Central Aerological Observ., Dolgoprudny, Moscow region, R
Volk, C.M.Univ. of Wuppertal, Wuppertal
Hösen, E.Univ. of Wuppertal, Wuppertal
Dörnbrack, A.DLR
Ungermann, J.Research Centre Jülich GmbH, Jülich
Kalicinsky, C.Univ. of Wuppertal, Wuppertal
Orphal, J.KIT, Karlsruhe
Date:2012
Journal or Publication Title:Atmospheric Measurement Techniques
Refereed publication:Yes
In Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:5
DOI:10.5194/amt-5-1205-2012
Page Range:pp. 1205-1228
Status:Published
Keywords:stratospheric aircraft M55 Geophysica, trace gases
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 Atmosphären- und Klimaforschung (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Cloud Physics and Traffic Meteorology
Deposited By: Jana Freund
Deposited On:29 Nov 2011 11:43
Last Modified:12 Dec 2013 21:26

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