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| Titel |
Level 2 processing for the imaging Fourier transform spectrometer GLORIA: derivation and validation of temperature and trace gas volume mixing ratios from calibrated dynamics mode spectra |
| VerfasserIn |
J. Ungermann, J. Blank, M. Dick, A. Ebersoldt, F. Friedl-Vallon, A. Giez, T. Guggenmoser, M. Höpfner, T. Jurkat, M. Kaufmann, S. Kaufmann, A. Kleinert, M. Krämer, T. Latzko, H. Oelhaf, F. Olchewski, P. Preusse, C. Rolf, J. Schillings, O. Sumińska-Ebersoldt, V. Tan, N. Thomas, C. Voigt, A. Zahn, M. Zöger, M. Riese |
| 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 (2015-06-17), S.2473-2489 |
| Datensatznummer |
250116434
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| Publikation (Nr.) |
 copernicus.org/amt-8-2473-2015.pdf |
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| Zusammenfassung |
The Gimballed Limb Observer for Radiance Imaging of the Atmosphere (GLORIA) is
an airborne infrared limb imager combining a two-dimensional infrared detector
with a Fourier transform spectrometer. It was operated aboard the new German
Gulfstream G550 High Altitude LOng Range (HALO) research aircraft
during the Transport And Composition in
the upper Troposphere/lowermost Stratosphere (TACTS) and Earth System Model
Validation (ESMVAL) campaigns in summer 2012.
This paper describes the retrieval of temperature and trace gas (H2O,
O3, HNO3) volume mixing ratios from GLORIA dynamics mode
spectra that are spectrally sampled every 0.625 cm−1.
A total of 26 integrated spectral windows are employed in a joint fit to
retrieve seven targets using consecutively a fast and an accurate
tabulated radiative transfer model. Typical diagnostic quantities are provided
including effects of uncertainties in the calibration and horizontal
resolution along the line of sight. Simultaneous in situ observations by the
Basic Halo Measurement and Sensor System (BAHAMAS), the Fast In-situ
Stratospheric Hygrometer (FISH), an ozone detector named Fairo, and the Atmospheric chemical
Ionization Mass Spectrometer (AIMS) allow a validation of retrieved values for
three flights in the upper troposphere/lowermost stratosphere region spanning
polar and sub-tropical latitudes. A high correlation is achieved between the
remote sensing and the in situ trace gas data, and discrepancies can to
a large extent be attributed to differences in the probed air masses caused by
different sampling characteristics of the instruments.
This 1-D processing of GLORIA dynamics mode spectra provides the basis for
future tomographic inversions from circular and linear flight paths to better
understand selected dynamical processes of the upper troposphere and lowermost
stratosphere. |
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