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  Robustness of terrestrial carbon and water cycle simulations against variations in spatial resolution

Mueller, C., & Lucht, W. (2007). Robustness of terrestrial carbon and water cycle simulations against variations in spatial resolution. Journal of Geophysical Research-Atmospheres, 112(D6): D06105. doi:10.1029/2006JD007875.

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 Urheber:
Mueller, Christoph1, Autor           
Lucht, Wolfgang2, Autor
Affiliations:
1IMPRS on Earth System Modelling, MPI for Meteorology, Max Planck Society, ou_913547              
2external, ou_persistent22              

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 Zusammenfassung: Dynamic Global Vegetation Models (DGVMs) of the terrestrial carbon and water cycle have been developed and validated at specific spatial resolutions ( mostly 0.5 degrees) but are increasingly being coupled to climate models at coarser spatial resolutions. Is this permissible? We ran the LPJ-DGVM at different spatial resolutions (0.5 x 0.5 degrees to 10.0 x 10.0 degrees in 0.5 degrees intervals) to assess the robustness of terrestrial carbon and water flux simulations to changes in spatial resolution. We show that global model results are robust with only small deviations in the single-digit percent range from a benchmark run at 0.5 degrees. The magnitude of the deviation increases with grid coarseness. Temporal dynamics are largely unaffected by grid cell size. The deviations from the benchmark are mostly spread evenly in space and are otherwise concentrated in areas with strong environmental gradients. We conclude that for coarse-resolution model coupling ( such as with climate models) as well as for specific global-scale applications ( such as global agroeconomic modeling or integrated assessment modeling) the spatial resolution of DGVMs can be reduced to coarser grids with little biogeochemical

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Sprache(n): eng - English
 Datum: 2007
 Publikationsstatus: Online veröffentlicht
 Seiten: -
 Ort, Verlag, Ausgabe: -
 Inhaltsverzeichnis: -
 Art der Begutachtung: Expertenbegutachtung
 Identifikatoren: ISI: 000245187200002
DOI: 10.1029/2006JD007875
 Art des Abschluß: -

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Titel: Journal of Geophysical Research-Atmospheres
Genre der Quelle: Zeitschrift
 Urheber:
Affiliations:
Ort, Verlag, Ausgabe: Washington, D.C. : American Geophysical Union
Seiten: - Band / Heft: 112 (D6) Artikelnummer: D06105 Start- / Endseite: - Identifikator: ISSN: 0148-0227
CoNE: https://pure.mpg.de/cone/journals/resource/991042728714264_1