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| Titel |
On the assimilation of total-ozone satellite data |
| VerfasserIn |
P. F. Levelt, M. A. Allaart, H. M. Kelder |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
0992-7689
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| Digitales Dokument |
URL |
| Erschienen |
In: Annales Geophysicae ; 14, no. 11 ; Nr. 14, no. 11, S.1111-1118 |
| Datensatznummer |
250012462
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| Publikation (Nr.) |
 copernicus.org/angeo-14-1111-1996.pdf |
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| Zusammenfassung |
| A two-dimensional model for advection and
data assimilation of total-ozone data has been developed. The Assimilation Model
KNMI (AMK) is a global model describing the transport of the column amounts of
ozone, by a wind field at a single pressure level, assuming that total ozone
behaves as a passive tracer. In this study, ozone column amounts measured by the
TIROS Operational Vertical Sounder (TOVS) instrument on the National Oceanic and
Atmospheric Administration (NOAA) polar satellites and wind fields from the
Meteorological Archive and Retrieval System (MARS) archives at ECMWF have been
used. By means of the AMK, the incomplete space-time distribution of the TOVS
measurements is filled in and global total-ozone maps at any given time can be
obtained. The choice of wind field to be used for transporting column amounts of
ozone is extensively discussed. It is shown that the 200-hPa wind field is the
optimal single-pressure-level wind field for advecting total ozone. Assimilated
ozone fields are the basic information for research on atmospheric chemistry and
dynamics, but are also important for the validation of ozone measurements. |
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