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| Titel |
Improving retrieval quality for airborne limb sounders by horizontal regularisation |
| VerfasserIn |
J. Ungermann |
| 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 ; 6, no. 1 ; Nr. 6, no. 1 (2013-01-02), S.15-32 |
| Datensatznummer |
250003390
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| Publikation (Nr.) |
 copernicus.org/amt-6-15-2013.pdf |
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| Zusammenfassung |
Modern airborne infrared limb sounders are capable of measuring profiles so
fast that neighbouring profiles are very similar to one another. This can be
exploited by retrieving whole 2-D cross-sections instead of simple 1-D
profiles.
This paper presents algorithms that are able to perform such a large-scale
retrieval and that efficiently produce typical diagnostic quantities. The
characteristics and capabilities of the proposed method are analysed and
demonstrated in a detailed case study using a series of profiles that were
measured by CRISTA-NF (Cryogenic Infrared Spectrometers and Telescope for the
Atmosphere–New Frontiers).
It is shown that cross-section retrievals can either reduce noise-induced
artefacts or produce finer vertical structures while maintaining the same
image noise level. Further, it is discussed how the presented methodology can
also be applied to improve the retrievals for other instrument types
including current satellite-borne nadir-sounders and near-future
satellite-borne limb sounders. |
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