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| Titel |
Validation of first chemistry mode retrieval results from the new limb-imaging FTS GLORIA with correlative MIPAS-STR observations |
| VerfasserIn |
W. Woiwode, O. Sumińska-Ebersoldt, H. Oelhaf, M. Höpfner, G. V. Belyaev, A. Ebersoldt, F. Friedl-Vallon, J.-U. Grooß, T. Gulde, M. Kaufmann, A. Kleinert, M. Krämer, E. Kretschmer, T. Kulessa, G. Maucher, T. Neubert, C. Piesch, P. Preusse, M. Riese, H. Rongen, C. Sartorius, G. Schardt, A. Schönfeld, D. Schuettemeyer, M. K. Sha, F. Stroh, J. Ungermann, C. M. Volk, J. Orphal |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1867-1381
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Measurement Techniques ; 8, no. 6 ; Nr. 8, no. 6 (2015-06-19), S.2509-2520 |
| Datensatznummer |
250116436
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| Publikation (Nr.) |
 copernicus.org/amt-8-2509-2015.pdf |
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| Zusammenfassung |
| We report first chemistry mode retrieval results from the new
airborne limb-imaging infrared FTS (Fourier transform
spectrometer) GLORIA (Gimballed Limb Observer for Radiance
Imaging of the Atmosphere) and comparisons with observations by the
conventional airborne limb-scanning infrared FTS
MIPAS-STR (Michelson Interferometer for Passive Atmospheric Sounding –
STRatospheric aircraft). For GLORIA, the flights aboard the high-altitude research
aircraft M55 Geophysica during the ESSenCe campaign (ESa
Sounder Campaign 2011) were the very first in field deployment after
several years of development. The simultaneous observations of
GLORIA and MIPAS-STR during the flight on 16 December 2011 inside
the polar vortex and under conditions of optically partially
transparent polar stratospheric clouds (PSCs) provided us the first
opportunity to compare the observations by two different infrared
FTS generations directly. We validate the GLORIA results with
MIPAS-STR based on the lower vertical resolution of MIPAS-STR and
compare the vertical resolutions of the instruments derived from
their averaging kernels. The retrieval results of temperature,
HNO3, O3, H2O, CFC-11 and CFC-12 show
reasonable agreement of GLORIA with MIPAS-STR and collocated in situ
observations. For the horizontally binned hyperspectral limb images,
the GLORIA sampling outnumbered the horizontal cross-track sampling
of MIPAS-STR by up to 1 order of magnitude. Depending on the
target parameter, typical vertical resolutions of 0.5 to
2.0 km were obtained for GLORIA and are typically a factor
of 2 to 4 better compared to MIPAS-STR. While the improvement of the
performance, characterization and data processing of GLORIA are the
subject of ongoing work, the presented first results already
demonstrate the considerable gain in sampling and vertical
resolution achieved with GLORIA. |
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