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| Titel |
The Heidelberg Airborne Imaging DOAS Instrument (HAIDI) – a novel imaging DOAS device for 2-D and 3-D imaging of trace gases and aerosols |
| VerfasserIn |
S. General, D. Pöhler, H. Sihler, N. Bobrowski, U. Frieß, J. Zielcke, M. Horbanski, P. B. Shepson, B. H. Stirm, W. R. Simpson, K. Weber, C. Fischer, U. Platt |
| 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 ; 7, no. 10 ; Nr. 7, no. 10 (2014-10-09), S.3459-3485 |
| Datensatznummer |
250115930
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| Publikation (Nr.) |
 copernicus.org/amt-7-3459-2014.pdf |
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| Zusammenfassung |
Many relevant processes in tropospheric chemistry take place on rather small
scales (e.g., tens to hundreds of meters) but often influence areas of
several square kilometer. Thus, measurements of the involved trace gases with
high spatial resolution are of great scientific interest. In order to
identify individual sources and sinks and ultimately to improve chemical
transport models, we developed a new airborne instrument, which is based on
the well established Differential Optical Absorption Spectroscopy (DOAS)
method. The Heidelberg Airborne Imaging DOAS Instrument (HAIDI) is a passive
imaging DOAS spectrometer, which is capable of recording horizontal and
vertical trace gas distributions with a resolution of better than 100 m.
Observable species include NO2, HCHO, C2H2O2,
H2O, O3, O4, SO2, IO, OClO and
BrO.
Here we give a technical description of the instrument including its
custom-built spectrographs and CCD detectors. Also first results from
measurements with the new instrument are presented. These comprise spatial
resolved SO2 and BrO in volcanic plumes, mapped at Mt. Etna
(Sicily, Italy), NO2 emissions in the metropolitan area of
Indianapolis (Indiana, USA) as well as BrO and NO2
distributions measured during arctic springtime in context of the BRomine,
Ozone, and Mercury EXperiment (BROMEX) campaign, which was performed 2012 in
Barrow (Alaska, USA). |
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