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| Titel |
Towards a 3-D tomographic retrieval for the air-borne limb-imager GLORIA |
| VerfasserIn |
J. Ungermann, M. Kaufmann, L. Hoffmann, P. Preusse, H. Oelhaf, F. Friedl-Vallon, 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 ; 3, no. 6 ; Nr. 3, no. 6 (2010-11-29), S.1647-1665 |
| Datensatznummer |
250001366
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| Publikation (Nr.) |
 copernicus.org/amt-3-1647-2010.pdf |
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| Zusammenfassung |
GLORIA (Gimballed Limb Observer for Radiance Imaging of the Atmosphere) is a
new remote sensing instrument essentially combining a Fourier transform
infrared spectrometer with a two-dimensional (2-D) detector array in
combination with a highly flexible gimbal mount. It will be housed in the
belly pod of the German research aircraft HALO (High Altitude and Long Range
Research Aircraft). It is unique in its combination of high spatial and
state-of-the art spectral resolution. Furthermore, the horizontal view angle
with respect to the aircraft flight direction can be varied from 45° to
135°. This allows for tomographic measurements of mesoscale events for a
wide variety of atmospheric constituents.
In this paper, a tomographic retrieval scheme is presented, which is able to
fully exploit the manifold radiance observations of the GLORIA limb
sounder. The algorithm is optimized for massive 3-D retrievals of several
hundred thousands of measurements and atmospheric constituents on common
hardware. The new scheme is used to explore the capabilities of GLORIA to
sound the atmosphere in full 3-D with respect to the choice of the flightpath
and to different measurement modes of the instrument using ozone as a test
species. It is demonstrated that the achievable resolution should approach
200 m vertically and 20 km–30 km horizontally. Finally, a
comparison of the 3-D inversion with conventional 1-D inversions using the
assumption of a horizontally homogeneous atmosphere is performed. |
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