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| Titel |
Detecting regional variability in sources and sinks of carbon dioxide: a synthesis |
| VerfasserIn |
A. J. Dolman, C. Gerbig, J. Noilhan, C. Sarrat, F. Miglietta |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1726-4170
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| Digitales Dokument |
URL |
| Erschienen |
In: Biogeosciences ; 6, no. 6 ; Nr. 6, no. 6 (2009-06-17), S.1015-1026 |
| Datensatznummer |
250003836
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| Publikation (Nr.) |
 copernicus.org/bg-6-1015-2009.pdf |
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| Zusammenfassung |
The current paper reviews the experimental setup of the CarboEurope
Experimental Strategy (CERES) campaigns with the aim of providing an
overview of the instrumentation used, the data-set and associated modelling.
It then assesses progress in the field of regional observation and modelling
of carbon fluxes, bringing the papers of this special issue into a somewhat
broader context of analysis.
Instrumental progress has been obtained in the field of remotely monitoring
from tall towers and the experimental planning. Flux measurements from
aircraft are now capable, within some constraints, to provide regular
regional observations of fluxes of CO2, latent and sensible heat.
Considerable effort still needs to be put into calibrating the surface
schemes of models, as they have direct impact on the input of energy,
moisture and carbon fluxes in the boundary layer. Overall, the mesoscale
models appear to be capable of simulating the large scale dynamics of the
region, but in the fine detail, like the precise horizontal and vertical
CO2 field differences between the models still exist. These errors
translate directly into transport uncertainty, when the forward simulations
are used in inverse mode. Quantification of this uncertainty, including that
of inadequate boundary layer height modelling, still remains a major
challenge for state of the art mesoscale models. Progress in inverse models
has been slow, but has shown that it is possible to estimate some of the
errors involved, and that using the combination of observations. Overall,
the capability to produce regional, high-resolution estimates of carbon
exchange, exist in potential, but the routine application will require
considerable effort, both in the experimental as in the modelling domain. |
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