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| Titel |
Stratospheric isotopic water profiles from a single submillimeter limb scan by TELIS |
| VerfasserIn |
A. Lange, J. Landgraf, R. Hoogeveen |
| 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 ; 2, no. 2 ; Nr. 2, no. 2 (2009-08-05), S.423-435 |
| Datensatznummer |
250000559
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| Publikation (Nr.) |
 copernicus.org/amt-2-423-2009.pdf |
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| Zusammenfassung |
| Around 490 GHz relatively strong HDO and H218O emission lines
can be found in the submillimeter thermal-emission spectrum of the Earth's
atmosphere, along with lines of the principal isotopologue of water vapour.
These can be used for remote sensing of the rare/principal isotope ratio in
the stratosphere. A sensitivity study has been performed for retrieval
simulations of water isotopologues from balloon-borne measurements by the
limb sounder TELIS (TErahertz and submillimeter LImb Sounder). The study
demonstrates the capability of TELIS to determine, from a single limb scan,
the profiles for H218O and HDO between 20 km and 37 km with a
retrieval error of ≈3 and a spatial resolution of 1.5 km, as
determined by the width of the averaging kernel. In addition HDO can be
retrieved in the range of 10–20 km, albeit with a strongly deteriorated
retrieval error. Expected uncertainties in instrumental parameters have only
limited impact on the retrieval results. |
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