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| Titel |
A two-step scheme for high-resolution regional atmospheric trace gas inversions based on independent models |
| VerfasserIn |
C. Rödenbeck, C. Gerbig, K. Trusilova, M. Heimann |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1680-7316
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| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 9, no. 14 ; Nr. 9, no. 14 (2009-07-29), S.5331-5342 |
| Datensatznummer |
250007545
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| Publikation (Nr.) |
 copernicus.org/acp-9-5331-2009.pdf |
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| Zusammenfassung |
| Mixing ratio measurements of atmospheric tracers like CO2
can be used to estimate regional surface-air tracer fluxes using inverse methods,
involving a numerical transport model.
Currently available transport models are either global but rather coarse,
or more accurate but only over a limited spatial and temporal domain.
To obtain higher-resolution flux estimates within a region of interest,
existing studies use zoomed or coupled models.
The two-step scheme developed here uses global and regional models sequentially
in separate inversion steps, coupled only via the data vector.
This provides a nested atmospheric inversion scheme without the necessity
of a direct coupled model implementation.
For example, the scheme allows an easy nesting of Lagrangian models
with their potential of very high resolution into global inversions
based on Eulerian models. |
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