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  Mesoscale covariance of transport and CO2 fluxes: Evidence from observations and simulations using the WRF-VPRM coupled atmosphere-biosphere model

Ahmadov, R., Gerbig, C., Kretschmer, R., Körner, S., Neininger, B., Dolman, A. J., et al. (2007). Mesoscale covariance of transport and CO2 fluxes: Evidence from observations and simulations using the WRF-VPRM coupled atmosphere-biosphere model. Journal of Geophysical Research: Atmospheres, 112(22), D22107. doi:10.1029/2007JD008552.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-000E-D4C2-6 Versions-Permalink: https://hdl.handle.net/21.11116/0000-000A-45F6-3
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 Urheber:
Ahmadov, R.1, Autor           
Gerbig, C.2, Autor           
Kretschmer, R.2, Autor           
Körner, S.2, Autor           
Neininger, B., Autor
Dolman, A. J., Autor
Sarrat, C., Autor
Affiliations:
1Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497755              
2Airborne Trace Gas Measurements and Mesoscale Modelling, Dr. habil. C. Gerbig, Department Biogeochemical Systems, Prof. M. Heimann, Max Planck Institute for Biogeochemistry, Max Planck Society, ou_1497784              

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 Zusammenfassung: We developed a modeling system which combines a mesoscale meteorological model, the Weather Research and Forecasting (WRF) model, with a diagnostic biospheric model, the Vegetation Photosynthesis and Respiration (VPRM). The WRF-VPRM modeling system was designed to realistically simulate high-resolution atmospheric CO2 concentration fields. In the system, WRF takes into account anthropogenic and biospheric CO2 fluxes and realistic initial and boundary conditions for CO2 from a global model. The system uses several “tagged” tracers for CO2 fields from different sources. VPRM uses meteorological fields from WRF and high-resolution satellite indices to simulate biospheric CO2 fluxes with realistic spatiotemporal patterns. Here we present results from the application of the model for interpretation of measurements made within the CarboEurope Regional Experiment Strategy (CERES). Simulated fields of meteorological variables and CO2 were compared against ground-based and airborne observations. In particular, the characterization by aircraft measurements turned out to be crucial for the model evaluation. The comparison revealed that the model is able to capture the main observed features in the CO2 distribution reasonably well. The simulations showed that daytime CO2 measurements made at coastal stations can be strongly affected by land breeze and subsequent sea breeze transport of CO2 respired from the vegetation during the previous night, which can lead to wrong estimates when such data are used in inverse studies. The results also show that WRF-VPRM is an effective modeling tool for addressing the near-field variability of CO2 fluxes and concentrations for observing stations around the globe.

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 Datum: 2007
 Publikationsstatus: Erschienen
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 Identifikatoren: DOI: 10.1029/2007JD008552
Anderer: BGC1047
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Titel: Journal of Geophysical Research: Atmospheres
  Andere : JGR-D
  Kurztitel : J. Geophys. Res. - D
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington, D.C. : American Geophysical Union
Seiten: - Band / Heft: 112 (22) Artikelnummer: - Start- / Endseite: D22107 Identifikator: ISSN: 0148-0227
CoNE: https://pure.mpg.de/cone/journals/resource/991042728714264_1